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6256 results about "Bentonite" patented technology
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Bentonite (/ˈbɛntənʌɪt/) is an absorbent aluminium phyllosilicate clay consisting mostly of montmorillonite. It was named by Wilbur C. Knight in 1898 after the Cretaceous Benton Shale near Rock River, Wyoming.
Composite heavy metal polluted soil in-situ fixing method
ActiveCN102303041APromote mineralization reactionQuick fixContaminated soil reclamationWater insolubleMagnesium sulfite
The invention discloses a composite heavy metal polluted soil in-situ fixing method. The method comprises the following steps of: preparing a heavy metal polluted soil restoration agent by using 80 to 90 weight parts of bentonite or kaolin serving as a filling agent, 0.5 to 15 weight parts of ferrous sulfide, 0.5 to 5 weight parts of magnesium sulfate, 1.5 to 8 weight parts of magnesium sulfite, 1 to 5 weight parts of magnesium oxide, 2 to 10 weight parts of calcium hydroxide and 1 to 5 weight parts of phosphorus-containing preparation; and mixing the components and heavy metal polluted soil according to the weight ratio of 1:(5-20), and uniformly stirring to make the humidity of the soil kept between 15 and 30 percent, wherein heavy metal ions in the polluted soil are converted into water-insoluble metal sulfides, hydroxides, multi-metal co-precipitates, basic carbonates and phosphate minerals, the biological activity of heavy metal is lost, and the heavy metal is fixed in the soil. The restored soil meets the requirement of second-level standard values of 'Environmental Quality Standard for Soil' (GB 15618-1995) in China.
Owner:刘阳生
Low-solid-phase low-temperature polymer drilling fluid
InactiveCN105018052ALow freezing pointImprove low temperature rheologyDrilling compositionDecompositionPolymer
The invention discloses a low-solid-phase low-temperature polymer drilling fluid containing a basic fluid and a treating agent, wherein the basic fluid is formed by compounding sodium-based bentonite and a sodium chloride solution, and the treating agent is formed by compounding a sulphonated compound cation exchange resin and polysaccharide as a flow pattern regulator. The low-solid-phase low-temperature polymer drilling fluid disclosed by the invention is strong in decomposition inhibition, good in rheological properties and low in fluid loss under low-temperature conditions, and meets the performance requirements of frozen soil natural gas hydrate drilling exploration on the drilling fluid.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
High temperature resistant circulating micro-foam drilling fluid or completion fluid
ActiveCN101148579AImprove stabilityHigh temperature resistanceDrilling compositionFoaming agentWell drilling
The present invention discloses one kind of high temperature recyclable microbubble drilling and completing fluid, which includes basic slurry comprising bentonite 1-2 (in weight portions, the same below), salt tolerant clay 3-5, sodium carbonate 0.2-0.3 and water 100; and additives comprising high temperature inhibitor 3-5, high temperature tackifier 2-5, high temperature filter loss reducing agent 3-6, high temperature salt resisting filter loss reducing tackifier 1-3, flow form regulator 1-3, high temperature foaming agent 2-5 and high temperature foam stabilizer 1-2.5. The high temperature recyclable microbubble drilling and completing fluid has excellent high temperature performance, high carrying, suspending capacity in low pressure deep well, and functions of inhibiting the hydrating expansion of mudstone and protecting oil and gas reservoir, is suitable for different types of high temperature stratum. It is applied in well drilling and well completing construction for low pressure and low permeation stratum.
Owner:DONGYING TAIER GASOLINE TECH
Drilling fluid used for active mud shale drilling
The invention relates to a drilling fluid used for active mud shale drilling, and the drilling fluid is used in oilfield drilling. The drilling fluid comprises the following components in percentages by weight: 2-6% of bentonite, 0.2-0.5% of coated inhibitor, 0.2-1.0% of flow pattern regulator, 0.2-0.5% of high-temperature-resistant polymer filtrate reducer, 4-7% of potassium chloride, 1-3% of polymeric alcohol, 0.5-1.0% of polyamine inhibitor, 0.5-1.0% of anti-balling fast drilling agent and 45-85% of water. The drilling fluid has the inhibition property and lubricating property approximate to that of an oil-based drilling fluid, solves the problems that the mud making of the mud shale is severe, mud escapes from a vibrating screen, the viscous shearing of the drilling fluid increases and the rheological properties of the drilling fluid deteriorates during strong-mud-making active mud shale drilling, prevents destabilization of the active mud shale, dispersion of drill cuttings, balling of drill bit, and adhesion and coalescence of the mud shale, and increases the drilling speed of the active mud shale.
Owner:BC P INC CHINA NAT PETROLEUM CORP +2
Production method of vacuum insulation wall thermal insulation board by using expanded vitrified microspheres
ActiveCN102296714ALow thermal conductivityImprove insulation effectMixing operation control apparatusClimate change adaptationThermal insulationMetallurgy
The invention discloses a production method for producing a heat insulation board for a vacuum heat insulation wall body by utilizing small expanded and vitrified balls, and the method comprises the following steps: putting the small expanded and vitrified balls, glass fiber, silica fume, bentonite and a getter into a stirring kettle, adding a wetting agent and a bonding agent, and stirring for forming a paste-like material; uniformly spreading the well stirred paste-like material on a micro-wave baking line according to the required thickness for baking, and further cutting into blocks when the water content in the board is below 1%; further placing the board which is cut into the blocks on a vacuum machine assembly line and vacuum pumping till the vacuum degree is below 200Pa; and cutting and packaging the heat insulation board for the vacuum heat insulation wall body. By applying the method provided by the invention for production, the process is simple, the emission of three wastes can be avoided, the produced heat insulation board for the vacuum heat insulation wall body is easy to construct, the fireproof property can be realized, the heat insulation board for the vacuum heat insulation wall body can play great roles in heat preservation and heat insulation, the combustion performance is grade A, the weight is light, the weather-resistant time is long, and the service life can be above 30 years.
Owner:潍坊三强集团有限公司
Drilling fluid and preparation method thereof
The invention discloses a drilling fluid and a preparation method thereof. The drilling fluid comprises Nml of water, wherein N is a positive number, 0.002N-0.005N gram of anhydrous sodium carbonate Na2CO3, 0.04N gram of bentonite for the drilling fluid, 0.003N-0.006N gram of coating agent, 0.015N-0.02N gram of tackifier, 0.01N-0.02N gram of filtrate reducer, 0.015N-0.03N gram of anti-collapse agent, 0.02N-0.03N gram of lubricant, 0.01N-0.015N gram of dispersing agent, 0.05N-0.08N gram of rigid bridging agent and 0.08N-0.15N gram of rigid filler. The drilling fluid of the invention is applicable to a loss formation and has obvious leakage stoppage effect, a leak-proof function at the same time and obvious inhibiting effect on a formation which is easy to disperse and collapse.
Owner:CHINA UNITED COALBED METHANE NAT ENGRES CENT +1
Organic/inorganic compound fertilizer taking biomass charcoal as matrix, preparation method of organic/inorganic compound fertilizer and preparation method of fine straw biomass charcoal powder
ActiveCN103449915AIncrease profitWide variety of sourcesClimate change adaptationAgriculture gas emission reductionPotassiumInorganic compound
The invention discloses an organic / inorganic compound fertilizer taking biomass charcoal as a matrix, a preparation method of the organic / inorganic compound fertilizer and a preparation method of fine straw biomass charcoal powder, relates to a compound fertilizer, a preparation method thereof and a preparation method of biomass charcoal and aims to solve the problems that the compound fertilizer is high in raw material cost, poor in granulation, capable of causing straw resource waste and low in utilization ratio and the energy consumption in the production process of the fine straw biomass charcoal powder is high. The fertilizer disclosed by the invention is prepared from fine straw biomass charcoal powder, a nitrogen fertilizer, a phosphate fertilizer, a potassium fertilizer, bentonite, a binder and trace elements; the preparation method of the fertilizer disclosed by the invention comprises the steps: firstly, preparing biomass charcoal; and secondly, smashing and screening; and the preparation method of the fertilizer disclosed by the invention comprises the steps: firstly, weighting the fine straw biomass charcoal powder and other raw materials; secondly, pretreating an inorganic fertilizer raw material; thirdly, mixing; and fourthly, granulating and drying to obtain organic / inorganic compound fertilizer grains taking the biomass charcoal as the matrix. The preparation method of the organic / inorganic compound fertilizer is applied to the technical field of fertilizer production.
Owner:黑龙江省农业科学院农村能源研究所
Small soilless culture method and device
ActiveCN102119651AIncrease the concentration of inputFewer deliveriesAgriculture gas emission reductionCultivating equipmentsSlagPeat
The invention relates to a small soilless culture method and device. A nutrient solution is contained in a culture disk or a nutrient solution storage pool; crops are planted into the nutrient solution; a soil copy material is added into the nutrient solution; the soil copy material comprises the following raw materials in parts by weight: 20-90 parts of organic matter and 2-80 parts of nonmetal mineral substance, wherein the organic matter is one or mixture of peat, fermented straw, fermented bagasse and fermented livestock and poultry manure; the nonmetal mineral substance is one or mixtureof coal ash, steel slag, zeolite, bentonite, opal, attapulgite mineral soil, pearlite, vermiculite, rectorite clay, sepiolite clay and kieselguhr; and the proportion of the nutrient solution to the soil copy material is (5-2):1. By adding the soil copy material into the nutrient solution, the nutrient charge concentration can be improved, the nutrient charge frequency is reduced, and the labor cost is reduced; meanwhile, when the concentration is reduced due to the absorption of the nutrients, the concentration reduction range is slower, and a deficiency symptom caused by lacking nutrients ofplants is lightened; in addition, trace elements needed by plants can be also supplemented.
Owner:杜友萍
Inorganic fireproof heat-insulating material and preparation method thereof
The invention discloses an inorganic fireproof heat-insulating material, which comprises the following components by weight: 0.5-30 parts of reinforced fibers; 40-65 parts of lightweight aggregate; 2-15 parts of bentonite; 12-35 parts of an adhesive; 5-20 parts of an inorganic gel material; 2-10 parts of an interface agent; 0-10 parts of expanded polyphenyl particles; and 200-260 parts of water. Specifically, the expanded polyphenyl particles play a buffering role in a stirring process, so that the lightweight aggregate can avoid breakage. The interface agent can enhance the compatibility of various raw materials and has a foaming effect. The adhesive and the inorganic gel material retain the produced foam. The reinforced fibers endow the material with certain elasticity and good mechanical strength. The preparation method of the material provided in the invention is simple and convenient, and is easy to operate and to realize industrial production. The material disclosed in the invention has the characteristics of high temperature resistance, good heat insulation performance, and small unit weight, not only can be used as a heat insulation sheet material and a heat insulation slurry, and also can be used as a fireproof door core, a fireproof plugging material and other inorganic refractory materials.
Owner:应急管理部天津消防研究所
Stable magnetic rheological liquid and its preparation method
InactiveCN1414075AImproving magnetorheological propertiesImprove wear resistanceAdditivesSuspended particlesIron powder
A high-stability magnetic rheopectic liquid is prepared from the magnetic suspended phase including reduced and phosphonated carbonyl iron powder, liquir carrier, nano-class inorganic bentonite or silica oxide-type thixotropic agent and surfactant through cleaning the surface of suspended particles, activating and synthesizing the magnetic rheopectic liquid. Its advantages are high stability without deposition, better antiwear nature, zero field viscosity and ideal rheopectic characteristics.
Owner:CHONGQING MATERIALS RES INST
Bacterial manure for peanut planting and preparation method of bacterial manure
ActiveCN103819267AImprove resistance to pests and diseasesIncrease productionFertilising methodsOrganic fertilisersMicrobial agentPaecilomyces lilacinus
The invention provides a special bacterial manure for peanut planting, which comprises the following components in parts by weight: 5-25 parts of a compound microbial agent, 30-65 parts of dreg composite powder, 5-20 parts of starch and 10-25 parts of bentonite, wherein the compound microbial agent is composed of bacillus subtilis agent, a rhodopseudomonas palustris agent, a trichoderma harzianum agent and a paecilomyces lilacinus agent; the mass ratio of the bacillus subtilis agent to the rhodopseudomonas palustris agent to the trichoderma harzianum agent to the paecilomyces lilacinus agent is 5:2:1:2, and the total effective viable count of the compound microbial agent is10 billion cfu / g. The bacterial manure is mainly used as a base fertilizer, and can change the microenvironment around the roots of peanuts to prevent various plant diseases and insect pests while promoting nutrient absorption of the peanuts, so that the yield and quality of the peanuts are improved.
Owner:湖南慧谷农业生态研究院有限公司
Plugging bearing material for petroleum drilling, and preparation method and application thereof
ActiveCN102061151ASuitable for lipophilic and hydrophilic propertiesGuaranteed preparationDrilling compositionSealing/packingHigh fracturePetroleum
The invention provides a plugging bearing material for petroleum drilling, and a preparation method and application thereof. The plugging bearing material comprises the following components: 900 to 1,200 kilograms of bentonite, 100 to 220 kilograms of magnesium oxide, 90 to 160 kilograms of fly ash, 0 to 80 kilograms of hardness regulator, 90 to 210 kilograms of compression resisting agent, 0.15 to 5.8 kilograms of hydrophilic surfactant, 8.3 to 13.0 kilograms of hydrophobic surfactant and 3 to 8 kilograms of water-soluble organic high polymer material. A plugging material formed by the plugging bearing material has high fracture plugging capability, and a plugging belt formed by the plugging bearing material plays a certain stable role in fracturing rocks. The plugging bearing material, and the preparation method and the application thereof are suitable for processing formation leakage of various forms.
Owner:CHINA PETROLEUM & CHEM CORP +1
Strong-inhibition strong-blocking drilling fluid
InactiveCN102863947AReduce harmNo pollution in the processDrilling compositionHigh concentrationAbsorption capacity
The invention relates to the technical field of drilling fluid for petroleum drilling, particularly to high-inhibition strong-blocking drilling fluid. The drilling fluid comprises, by weight, 0.5%-15% of a strong inhibitor, 0.5%-7% of a strong blocking agent, 0.5%-5% of bentonite and 0.2%-6% of a fluid loss agent. The drilling fluid has strong inhibiting effect on hydration of strong water-sensitive mud shales through high concentration K+ generated after dissolution of the strong inhibitor; simultaneously, anions generated after the dissolution of the strong inhibitor take the absorption action with the surface of clay through the absorption capacity so as to form protective films on the surface of the clay, and therefore the hydration of the clay is prevented; and the strong blocking agent can achieve strong blocking to strong water-sensitive mud shale stratums with micro-cracks to form isolating films in the real sense, and therefore instability of well walls of the strong water-sensitive mud shale stratums is prevented. The drilling fluid has the advantages of being good in blocking, strong in inhabitation, good in lubricity, stable in high temperature property, small in damage to reservoir stratums, free of pollution and capable of improving the production efficiency.
Owner:CNPC XIBU DRILLING ENG
Carbon-based fertilizer potentiating agent and application thereof
InactiveCN102675001ASimple production processRaw materials are easy to getClimate change adaptationFertilising methodsNitrification inhibitorsPollution
Owner:SHENYANG AGRI UNIV
Production method for producing vacuum-insulation wall insulation board by utilizing expanded and vitrified small balls
InactiveCN102720277ASimple processNo waste dischargeClimate change adaptationInsulation improvementGlass fiberCooking & baking
The invention relates to a production method for an insulation board. The method comprises the following steps of: a, adding 50-70 parts by weight of expanded and vitrified small balls, 5-10 parts by weight of fibre glass, 5-20 parts by weight of silicon ash, 5-10 parts by weight of bentonite and 1-5 parts by weight of getter into a stirring kettle, then adding 2-5 parts by weight of wetting agent and 15-20 parts by weight of binding agent, and stirring the ingredients to obtain a pasty material; b, spreading out the well stirred pasty material on a microwave baking line, baking the pasty material until the water content of the board is less than 1% and then cutting the board into blocks; c, vacuumizing the board which is cut into blocks, wherein the degree of vacuum is below 200Pa; and d, cutting and packing the obtained insulation board. By utilizing the production method provided by the invention to produce the insulation board, the process is simple, no three wastes are discharged, and the produced insulation board can well achieve the effects of heat preservation and heat insulation, and has the combustion performance of grade A and the insulation thickness of 10-15mm; and the produced insulation board is light in weight and long in weather-proof time and has service life of more than 30 years.
Owner:QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
High-efficiency flame retardant wood plastics composite and preparation method thereof
The invention discloses a high-efficiency flame retardant wood plastics composite. The high-efficiency flame retardant wood plastics composite is prepared from 50 to 75 weight parts of wood powder, 10 to 30 weight parts of plastic resin, 1 to 5 weight parts of interfacial compatibilizer, 0.5 to 2 parts of impact modifier, 1 to 3 weight parts of lubricant, 1 to 5 weight parts of other functional aid, and 10 to 30 weight parts of flame retardant. The preparation method comprises the following steps of: degreasing and drying wood powder, organically modifying bentonite and zinc borate and mechanically grinding, mixing in a high-speed mixing machine to obtain premix, and mixing and plasticizing in a double-roll plasticator and performing compression molding. The bentonite and the zinc borate which are treated organically and aluminum hydroxide are compounded to form a novel fire retardant, the mechanical property of the material is kept, the flame retardant effect of the wood plastics composite is improved and the using amount of the aluminum hydroxide is greatly reduced; and the bentonite and the zinc borate are organically ultrafined, the problem that an inorganic additive is not easily compatible with other components so as to influence the mechanical property of the composite is solved and the flame retardant requirement of the wood plastics composite is met.
Owner:ZHEJIANG GONGSHANG UNIVERSITY
Efficient environmental-friendly slow-release fertilizer and preparation method thereof
ActiveCN102001887APromote degradationHigh ball rateFertilizer mixturesPolyvinyl alcoholAqueous solution
The invention discloses efficient environmental-friendly slow-release fertilizer and a preparation method thereof. The fertilizer comprises the following components in parts by weight: 75-88 parts of chemical fertilizer raw material, 10-20 parts of endoplasmic slow-release material, 2-10 parts of enveloping slow-release material and 0.02-0.05 part of colorant. The preparation method comprises thefollowing steps of: after metering, crushing and uniformly mixing the chemical fertilizer raw material, the colorant, bentonite and polyacrylamide, feeding into a rotary drum granulator; spraying a polyvinyl alcohol aqueous solution; after drying at two sections, carrying out half cooling, rough screening and fine screening, then feeding into a coating machine; sequentially spraying an oil type slow-release material and a powder type slow-release; and uniformly mixing fully, cooling and packaging to obtain a finished product. The slow-release material of the invention can not cause soil pollution and improve the utilization ratio of the fertilizer, and the product has the advantages of color mark, simple process, low cost and high benefits and is convenient for recognition and operation.
Owner:CNSG ANHUI HONG SIFANG FERTILIZER IND CO LTD
Ceramal material for manufacturing hydrogen-enriched water and preparing method and application thereof
The invention belongs to the technical field of new environment-friendly materials, and particularly relates to a ceramal material for manufacturing hydrogen-enriched water and the preparing method and application thereof. The ceramal material is prepared from, by weight, 30-85 parts of base material component, 20-60 parts of hydrogen-enriched component, 2-25 parts of anti-microbial component, and 3-30 parts of binder. The base material component is prepared from tourmaline, serpeggiante, silicon oxide, calcium oxide and zeolite. The hydrogen-enriched component is prepared from magnesium metal powder, magnesia powder and KDF alloy powder. The anti-microbial component is prepared from zinc oxide, titanium oxide and cerium oxide. The binder is prepared from one or more of high-purity distilled water, carboxypropyl cellulose and bentonite. The ceramal material can be used for manufacturing alkalescent water, negative-potential water and hydrogen-enriched water and also has an anti-microbial function and a water activating function. The invention further provides the preparing method and application of the ceramal material. The technology is simple and easy to realize. The ceramal material can be applied to products including water purifiers, water purifying kettles and cups.
Owner:山东木齐健康科技有限公司
Brewing method for a fruit wine
The invention discloses a method for brewing a fruit wine. The raw materials of the fruit wine comprise the following components by weight percentage: 71wt%-86wt% of fruit crude juice, 9wt%-21wt% of white sand sugar, 4wt%-6wt% of yeast strain amplification culture solution and 1wt%-2wt% of lactobacillus strain amplification culture solution. The technological process of the method comprises the steps as follows: (1) juicing fruits, filtering and adding sulfur dioxide (SO2); (2) clarifying the fruit juice; (3) carrying out the primary fermentation; (4) carrying out the secondary fermentation; (5) clarifying the crude wine; (6) blending; (7) carrying out the cold treatment; and (8) sterilizing and canning. The method has the advantages that the strain amplification culture solution is subjected to the primary fermentation and the secondary fermentation, therefore, the fermentation speed is high, the fermentation time is short, and the fruit wine has good original taste and good stability; and the bentonite-loaded chitosan is adopted to carry out the clarifying treatment and a diatomite filter is used for filtering, thereby the fruit wine has pure original taste; and the 6-second flash sterilization at the high temperature of 105 DEG C is carried out to prolong the shelf life of the fruit wine.
Owner:海南省工业研究所
Porous phosphorus removing ceramic granules with function of slowly releasing alkali and preparation method thereof
ActiveCN101935195AImprove plasticityLarge specific surface areaSilicon compoundsWater/sewage treatment by sorptionFiberPorosity
The invention discloses porous phosphorus removing ceramic granules with a function of slowly releasing an alkali and a preparation method thereof. The prepared ceramic granules are an environmental material for efficiently removing phosphorus from municipal sewage and industrial wastewater. Based on the basic chemical properties of the phosphorus in water and a phosphorus removing mechanism by chemical absorption, the preparation method of the ceramic granules comprises the following steps of: mixing 20 to 40 mass percent of ordinary portland cement (42.5 level), 10 to 20 mass percent of bentonite, 10 to 20 mass percent of fly ash, 10 to 15 mass percent of calcium oxide, 15 to 25 mass percent of nitrocellulose, 14 to 30 mass percent of xonotlite fiber particle and 0.1 to 0.5 mass percent of pore-creating agent; adding water for stirring the mixture according to a water-solid ratio of 0.35 to 0.45; granulating the mixture into granules with required grain sizes; and after the granules are foamed and solidified, curing the granules by using high-temperature steam to obtain the ceramic granules. The method has the advantages of simple preparation process, readily available raw materials, low cost and wide application prospect in the field of the removing of the phosphorus in water bodies. The prepared ceramic granules have the characteristics of capacity of slowly releasing the alkalis, silicic and calcareous textures, porosity, capacity of continuously and efficiently absorbing and removing the phosphorus and suitability for phosphorus removing systems of the municipal sewage and the industrial wastewater.
Owner:郑俊 +1
Preparation method and application of pseudomonas chlororaphis for resisting disease and promoting growth
ActiveCN104017744AIncrease productionPowerful biological control functionBiocideBio-organic fraction processingMetaboliteMicrobial agent
The invention discloses a preparation method and application of pseudomonas chlororaphis for resisting disease and promoting growth. A strain is pseudomonas chlororaphis HT66CCTCC No:M2013467. A main metabolite of the strain comprises phenazine-1-phenazine and phenazine-1 formamide. The strain is inoculated into a microorganism culture medium and is fermented to obtain a thallus with high concentration and the metabolite, and can be mixed with materials like powder active carbon, bentonite, swell soil, kaolin, diatomite, zeolite, calcium carbonate and the like to prepare a microbial agent; the quantity of viable organisms in a finished product is 1-8.5*10<9>cfu / mL. The tablet laboratory verifies that the pseudomonas chlororaphis has good control effect of pathogenic bacteria of rice sheath blight diseases, cotton fusarium wilt, gaeumannomyces graminis and watermelon fusarium wilt, and also has a good promotion function in the growth of a part of plants.
Owner:SHANGHAI JIAO TONG UNIV
Mullite ceramic foam filter for casting and preparation method thereof
InactiveCN102173856AGood purification effectImprove filtering effectFiltration separationCeramicwareMulliteSlurry
The invention belongs to the field of porous ceramic, and provides a mullite ceramic foam filter for casting. The mullite ceramic foam filter for casting comprises the following chemical components: 40-80 wt% of Al2O3, 10-50 wt% of SiO2 and 1-10 wt% of alkali-earth oxide. The mullite ceramic foam filter for casting is in a mutually-communicated mesh porous structure. The preparation method comprises the following steps: using natural alumina containing 40-80 wt% of Al2O3 as the main raw material, adding one or more of silicon dioxide, aluminum oxide, kaolin, bentonite and talcum powder as the auxiliary material, and adding adhesive, dispersant and water to obtain a ceramic slurry; and immersing polyurethane sponge foam into the slurry, removing the excessive slurry, drying, and sintering at high temperature to obtain the mullite ceramic foam filter. The invention has excellent thermal impact resistance and molten metal attack resistance, and can be widely used for filtering, purifying and rectifying aluminum, aluminum alloy, copper, iron or any other molten metal liquid, thereby greatly enhancing the quality and yield of castings.
Owner:SINOSTEEL LUOYANG INST OF REFRACTORIES RES
Composite antibacterial powder and preparation method thereof
ActiveCN102210325AHigh content of bactericidal factorIncrease productivityBiocideDisinfectantsChemical productsTemperature resistance
The invention provides composite antibacterial powder and a preparation method thereof. The composite antibacterial powder contains nano silver, zinc and nonmetallic minerals such as nano calcium carbonate or nano hydrotalcite, nano titanium oxide and nano bentonite and the like serving as carriers, wherein the content of the silver is 10 to 20 mass percent, and the content of the zinc is 20 to 40 mass percent. The composite antibacterial powder has high bactericidal factor content, is more convenient in compatibility and application, and saves the cost; the particle diameter of the bactericidal factors is nano-scale, so that the bactericidal capability is stronger; the composite antibacterial powder has illumination resistance, does not change color, and has high temperature resistance, good slow-release property and long-acting property; and the preparation method is simple in process, time-saving, labor-saving and high in production efficiency. The composite antibacterial powder serving as an antibacterial agent can be widely applied to various building materials, glass, coating (containing powdery coating), wood, paper and products thereof, plastics, plastic cement, daily ceramic, chemical materials, various home appliances, daily chemical products, textiles and the like.
Owner:SHENZHEN TSINGHUA YUANXING NANO MATERIAL CO LTD
High-temperature water-in-oil drilling fluid
InactiveCN102031095AOvercoming the problem of insufficient temperature resistanceMeet the requirements of temperature resistanceDrilling compositionMineral oilSODIUM DODECYL BENZENE SULFONATE
The invention relates to a high-temperature water-in-oil drilling fluid which is composed of the following components in parts by weight: 70-90 parts of base oil, 3-7 parts of organic bentonite, 2-5 parts of oxidized asphalt, 2-5 parts of sulfonated gilsonite, 20-60 parts of CaCl2 aqueous solution of which the mass concentration is 20%, 6-10 parts of calcium oxide, 1.5-5.5 parts of UZEMUL-S, 2-5 parts of ABS (acrylonitrile butadiene styrene) and barite, wherein the base oil is non-blooming mineral oil with low aromatic hydrocarbon; the UZEMUL-S is a main emulsifier, the HLB (hydrophile-lipophile balance) value is 2.5, and the UZEMUL-S is formed by synthetizing an organic acid and an organic acid amide; and the ABS auxiliary emulsifier is sodium dodecyl benzene sulfonate, and the HLB value is 10. The invention resists temperature of 240 DEG C, can overcome the difficulty of insufficient heat-resistant capability of the existing drilling fluid and is favourable for satisfying the requirement of drilling fluid heat-resistant capability for deep wells and ultra deep wells.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Method of providing hemostasis in Anti-coagulated blood
InactiveUS20080254147A1Promote formationBiocideInanimate material medical ingredientsMedicineB hemophilia
In a method of clotting blood in which the blood exhibits a reduced tendency to clot and may be from a person undergoing an anticoagulant therapy or having type A or B hemophilia or von Willebrand disease, a therapeutically effective amount of a composition comprising clay as the active ingredient is administered to a wound from which the blood emanates. Upon contacting the blood, this clay, which may be kaolin, bentonite, or any type of layered clay, causes the blood to clot. In a method of arresting blood flowing from a wound, a therapeutically effective amount of a composition comprising clay as the active ingredient is administered to the bleeding wound. In this method, the blood has a reduced tendency to clot and may be from a person undergoing an anticoagulant therapy or having at least one of hemophilia A or B or von Willebrand disease.
Owner:TELEFLEX LIFE SCI LTD
Method for preparing salt-resistant stain-resistant bentonite with adsorption function
ActiveCN104030308AIncrease the areaHigh ion exchange capacitySilicon compoundsContaminated waterStain
The invention provides a method for preparing salt-resistant stain-resistant bentonite with adsorption function. The method comprises the following steps: performing sodium treatment, namely milling natural calcium bentonite to pass through a sieve with the granularity of 50-150 meshes, adding the bentonite into an aqueous solution of a sodium treatment agent, stirring, performing sodium treatment and reacting at the temperature of 50-90 DEG C for 1-4 hours, and drying to obtain sodium-based bentonite; and modifying, namely milling the sodium-based bentonite to pass through a sieve with the granularity of 150-250 meshes, drying and mixing with a modifier at normal temperature, and obtaining the product. The bentonite prepared by the method is high in expansibility, has high salt resistance, high stain resistance and good adsorption performance, can be used for underground seepage prevention of high salinity complex water bodies and also can be used for treating heavy metal ions and organic pollutants in contaminated water.
Owner:HOHAI UNIV
Nanocomposite diatom ooze material and construction method thereof
The invention discloses a nanocomposite diatom ooze material and a construction method thereof. The material consists of a diatom ooze powder material and nano-titanium dioxide dispersion liquid, wherein the diatom ooze powder material consists of calcined diatomite, quartz sand, gray calcium powder, bentonite, wollastonite, seaweed gel, cellulose ether and negative ion powder. The construction method comprises the following steps of: mixing the diatom ooze powder material and water according to the weight ratio of 1:0.9 in the field; after stirring for 15 minutes by using an electric stirrer, performing batch-scraping coating texture modeling construction; uniformly spraying the nano-titanium dioxide dispersion liquid, namely photocatalyst solution to a construction surface by using a spraying gun after the surface is dried; and drying for 48 hours. By using the construction method, the problems that nano-titanium dioxide powder is difficult to disperse and easy to agglomerate, and has large additive amount, the production cost is high, and a nano-titanium dioxide material is wasted in the preparation process of the diatom ooze are solved, the functionality of the diatom ooze for purifying and decomposing harmful gases is improved, and the overall cost of the product is reduced.
Owner:JILIN PROVINCE LANSHE DIATOM NEW MATERIALS
High-permeability sand-burning-preventing paint for casting and preparation method thereof
InactiveCN102139342AImprove permeabilityImprove high temperature strengthFoundry mouldsFoundry coresAlkylphenolSuspending Agents
The invention discloses high-permeability sand-burning-preventing paint for casting and a preparation method thereof. The high-permeability sand-burning-preventing paint is prepared from the following raw materials: refractory aggregate, a binding agent, an activating agent, a thickening agent, a suspending agent, a defoaming agent and a carrier, wherein the masses of the binding agent, the activating agent, the thickening agent, the suspending agent, the defoaming agent and the carrier respectively account for 0.5-2.5 percent, 0.01-0.05 percent, 0.1-0.5 percent, 1.5-5.0 percent, 0.01-0.1 percent and 40-220 percent of the mass of the refractory aggregate; the refractory aggregate is a mixture of one or two of zircon powder and chromite fines in any proportion; the binding agent is phenolic resin or a mixture of the phenolic resin and one or more than two of oxidized rosin and ethyl silicate; the activating agent is alkylphenol ethoxylates; the carrier is ethanol; the thickening agent is polyvinyl butyral; the suspending agent is lithium bentonite; and the defoaming agent is normal butanol.
Owner:衡阳中钢衡重铸锻有限公司
Wet refractory mortar and preparation method thereof
The invention relates to a wet refractory mortar and a preparation method thereof. The wet refractory mortar comprises the raw materials in percentage by weight: 60-90% of main raw material of the refractory materials, 1-15% of micro powder, 0.5-5% of bentonite, 0.5-10% of soft clay, 0-5% of methylcellulose, 0-5% of dextrin, 0.05-0.5% of dispersing agent (admixture), 3-10% of glycerin (admixture), 0-5% of water-soluble poly-glyceride (admixture) and 5-25% of clean tap water (admixture). The preparation method comprises the following steps of: preparing the poly-glyceride glycerin solution; preparing the dry powdery semi-finished product; adding the clean tap water for wet mixing; adding the poly-glyceride glycerin solution to be mixed; packing hermetically by using plastic bags; packing hermetically by using hard plastic buckets; and storing and transporting in the cool. The refractory mortar of the invention is directly manufactured into finished products to effectively control the product quality; is in a wet state during the storing and transporting and using to lower the user cost and labor intensity of workers, and avoid the environmental pollution caused in the construction site; and is taken according to need to reduce the unnecessary waste.
Owner:LUOYANG LIER REFRACTORY MATERIAL +2
Multi-functional salinization soil improved material
InactiveCN101962555ALow priceEasy to useAgriculture tools and machinesOrganic fertilisersOrganic acidPhosphoric acid
The invention discloses a multi-functional salinization soil improved material and a preparation method thereof. The material is composed of natural organic materials, water-soluble functional polymers, inorganic fertilizers, calcium bentonite, organic acid, phosphoric acid, sulphur and micro elements. The material has the advantages of reducing soil salination or restraining the migration of harmful ions through the optimization and synergistic effect of various kinds of materials, fertilizing soil, improving the soil crumble structure, strengthening soil permeability, and increasing soil water conservation functions. The material has the advantages of low cost, lasting effect and no environmental pollution.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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