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77results about How to "Loose internal structure" patented technology

Preparation method of reed-based biochar adsorption material

InactiveCN108970583AStrong pollutant adsorption capacityRealize the utilization of waste resourcesOther chemical processesAlkali metal oxides/hydroxidesChemistryNitrogen gas
The invention relates to a preparation method of a reed-based biochar adsorption material. The preparation method is technically characterized by comprising the following steps of cleaning the reed stalk, drying and crushing; soaking the crushed reed stalk into a KOH (potassium hydroxide) solution to activate, and drying; putting the dried crushed reed stalk into an atmosphere furnace, and performing oxygen-free high-temperature cracking under the nitrogen or inert gas protection atmosphere; after high-temperature cracking treatment, cooling to room temperature, and cleaning the cracked material to be neutral by an acid solution, so as to prepare the reed-based biochar adsorption material. The preparation method has the advantages that the problems of pollution to environment and waste ofresources due to irresponsible disposal of the wetland plant wastes are solved; compared with the prior art, the specific surface area is large, the pollutant adsorption ability is strong, the environment-friendly value is greatly increased, and the resource utilization of the wastes is realized.
Owner:SHENYANG ACAD OF ENVIRONMENTAL SCI

Selective-oxidized chitosan and heterogeneous preparation method thereof

InactiveCN107474161AHigh oxidation selectivityMild reaction conditionsSolubilityReaction rate
The invention discloses a selective-oxidized chitosan and a heterogeneous preparation method thereof. The method is characterized in that according to preparation of the oxidized chitosan, macromolecular chitosan is dissolved in an ionic liquid, the chitosan is precipitated from the ionic liquid by adding absolute ethyl alcohol, and porous chitosan is obtained after the ionic liquid in a precipitation is fully replaced through absolute ethyl alcohol dipping and ultrasonic oscillation; the porous chitosan is moistened and expanded in the ionic liquid to form a semisolid gel with certain viscosity, and then partial or all hydroxyls at C6 position in pyranose rings of the chitosan are selectively oxidized into carboxyls in an ionic liquid medium to obtain the selective-oxidized chitosan with adoption of a concentrated nitric acid-concentrated phosphoric acid-sodium nitrite system. According to the method, operation is simple and convenient, the oxidation reaction rate is high, the oxidation degree of the chitosan is easily controlled, oxidation products are easy to separate, the yield of the products is high, the prepared carboxyl chitosan has good antibacterial activity and water solubility, and the ionic liquid can be recycled for cyclic utilization, which is environmentally friendly.
Owner:TAIHE KERUNGE GARMENT CO LTD

Hollow micro-ball containing phosphazene and preparing method

The present invention discloses a kind of phosphazenes-containing hollow microsphere as shown in the following figure, and its preparation method; specifically, the diameter of the hollow microsphere is 0.3-2.0mu m, and the internal hollow diameter of the hollow microsphere is 100-800 nm. The phosphazenes-containing hollow microsphere which has a body-type crosslinking structure, can be produced by crosslinking condensation reaction under the function of acid binding agent, and controllable hydrolysis, in sequence, between hexachlorocyclotriphosphazene and 4, 4'-dihydroxy diphenyl sulfone; the preparation method is novel, simple and feasible, which can be large scale prepared in industrial applications.The phosphazenes-containing hollow microsphere can be used in controlling drug release, efficient catalyst carriers, new photoelectric material, flame retardant materials, etc.
Owner:SHANGHAI JIAO TONG UNIV

Processing method for feather albumen powder

The invention discloses a processing method for feather albumen powder and relates to the technical field of albumen powder processing. The feather albumen powder is prepared according to the following steps: washing poultry feather with water, cleaning and then cooking with water; freezing; thawing; crushing under partial freezing state; performing enzymolysis; drying; crushing and sieving. According to the method of repeatedly cooking with water, freezing and then performing enzymolysis provided by the invention, the macromolecule albumen in the feather is converted into micro-molecule polypeptide; freezing is performed after water cooking, so that the interior structure of the feather is loosened; after enzymolysis, the albumen powder contains various amino acid ingredients; the digestibility of the obtained albumen powder is high; the albumen powder is fit for the processing of the feather albumen powder produced by adopting the feather of poultry including chicken, duck, goose and the like; the processing method provided by the invention has the advantages that the technique is simple, the equipment is simple and the industrial production requirement can be met.
Owner:ANHUI SANXIANG DOWN

Method for preparing smoke treating and water source purifying double-purpose active coke and products thereof

The present invention provides a preparing method of active coke for gas purification and water source purification, including following steps: 1) preparing coal powder, breaking raw material to coal powder which more than 90% can pass 200 mesh sieve; 2) preparing an adhesive, keeping warm after heating melt asphalt or mixer of asphalt and tar, evenly mixing; 3)adding the adhesive to coal powder, forming pelleting, charing, activation and sieving package after mixing evenly. The preparing method and its product have gas-liquid dual efficacies, further reduces cost and simple process, preparation by make the most of present equipment, do not large change equipment; the prepared product has better dynamic purifying effect, realizes desulfurization, denitration, demercuration and dechlorination, removing dioxin and dust removing integrated purifying functions; the prepared product saves water, electricity and location in the pratica; application of the gas desulfurization, also a lower investment, the source is recycled in the treating process, this can not cause secondary pollution.
Owner:邹炎

Water-soluble granule formulation containing paraquat dichloride and preparation method of water-soluble granule formulation

InactiveCN102578099ASafe and clean productionReduce poisonBiocideAnimal repellantsPoisoning riskBittering Agents
The invention belongs to the field of pesticides, and discloses a water-soluble granule formulation containing paraquat dichloride and a preparation method of the water-soluble granule formulation. The water-soluble granule formulation comprises the following components: 0.1 to 95 parts by weight of paraquat dichloride, 1 to 30 parts by weight of surfactants, 0.001 to 0.1 part by weight of bitter agent, 0.05 part by weight of pigment, 0.1 part by weight of odor agent and an emetic equivalent to 0.18 wt% of the paraquat dichloride, wherein the surfactant is a sulfonic compound, a sulfuric compound, an anionic surfactant and / or a non-ionic surfactant; the components are mixed to form size, and then particles are prepared by a fluidized granulating method. The prepared water-soluble granule formulation can be used for preventing poisoning risk caused by contacting or ingesting a regular soluble concentrate or wettable powder, and the weeding effect is kept after the water-soluble granule formulation is stored for a long time.
Owner:NANJING HUAZHOU PHARMA

Solid tobacco tar and preparation method and application thereof

The invention relates to solid tobacco tar and a preparation method and application thereof. The solid tobacco tar is prepared from the raw materials in percentage by mass: 30-60% of a porous carrier,5-15% of a thickening agent, 5-15% of a binder and 20-40% of an alevaire aer. According to the solid tobacco tar, the raw materials can cooperate with one another, and the obtained solid tobacco tarcan be atomized evenly when being used.
Owner:SMISS TECH

Ferrite magnetic core blank body and preparation method thereof, and ferrite magnetic core and preparation method of ferrite magnetic core

The invention discloses a ferrite magnetic core blank body and a preparation method thereof, a ferrite magnetic core and a preparation method of the ferrite magnetic core. The preparation method of the ferrite magnetic core blank body comprises the steps: (1) blending 70%-95% of a ferrite powder and 5%-30% of a binder, and thus obtaining a feedstock for injection molding, wherein the ferrite powder includes 60%-70% of iron oxide, 10%-20% of nickel oxide, 2%-10% of copper oxide and 15%-25% of zinc oxide, and the binder comprises 80%-90% of polyoxymethylene, 3%-6% of high-density polyethylene, 3%-6% of an ethylene-vinyl acetate copolymer, 2%-5% of paraffin, and 2%-5% of zinc stearate; and (2) carrying out injection molding with the feedstock, and thus forming the ferrite magnetic core blank body. The preparation method not only improves the consistency of the magnetic core, the feeding flexibility is good, during injection molding of the ferrite magnetic core blank body, the product and a back material are not broken, demoulding is easy, and a mold is not required to be often cleaned, so that full-automatic production can be realized, the labor cost is greatly reduced, and the production efficiency is improved.
Owner:SHENZHEN SUNLORD ELECTRONICS

Cloth sole structure

The invention discloses a cloth sole structure. The cloth sole structure is used for solving the problems of inconvenient processing and bad wearing comfort of the existing cloth sole structure. The adopted technical solution is as follows: the cloth sole structure comprises a sole and a foot pad; shapes of outer edges of the sole and the foot pad are similar to each other; an annular slot is arranged inside the outer edge of the sole, and the outer edge of the foot pad extends into the slot; the right side of the sole is provided with an opened holding cavity which is arranged inside the slot; the shapes of the outer edges of the holding cavity and the sole are similar to each other; the foot pad is arranged in the holding cavity; and the side face of the foot pad is bonded with the inner face of the holding cavity.
Owner:许月清

Method for extracting rapeseed oil and passivated myrosinase from rapeseeds

The invention discloses a method for extracting rapeseed oil and passivated myrosinase from rapeseeds and belongs to the technical field of agricultural resources.The method has the advantages that raw materials are soaked by deionized water, moisture in cells is turned into steam during steam explosion or pressurization heat-moisture treatment, and cell walls are broken to allow the cell structure to be loose and promote the dissolution of grease in the cells; an ethanol solution is used as the oil extraction medium, glucosinolates and most degradation products are allowed to enter a water phase, the glucosinolate and glucosinolate degradation product contents in cake are lowered, and the detoxification procedure of rapeseed cake is reduced; enzyme use is avoided, oil production cycle is shortened, production cost is reduced, oil product quality is optimized, and the problems that the glucosinolate and glucosinolate degradation product contents of the cake obtained by a traditional rapeseed process are high, high-quality protein resources are wasted, a large amount of enzyme needs to be used, cost is high or environment pollution is severe, and the like are solved.
Owner:JIANGNAN UNIV

Pregelatinized and re-pelleted composite brown rice

InactiveCN102652548ANutrition, Green and Environmental ProtectionNutritional diversityFood preparationCorn flourSemen
The invention discloses pregelatinized and re-pelleted composite brown rice which is prepared from the following raw materials in parts by weight: 10-120 parts of coarse rice powder, 8-15 parts of corn starch, 5-10 parts of black soya bean powder, 3-8 parts of purslane lyophilized powder, 3-5 parts of semen sesami nigrum powder, 3-5 parts of lotus leaf powder, 3-5 parts of lotus seed powder, 3-5 parts of Lycium barbarum L powder, 3-5 parts of buckwheat powder and 3-5 parts of lily root flour. The pregelatinized and re-pelleted composite brown rice is prepared by adopting double-screw extruding re-pelleting technology and processes such as gelatinization, extruding and re-pelleting on the raw materials which are rich in nutrition, the nutrition rice has the same shape as the common rice, a rice product with the same steaming performance and method as the common rice can be achieved, the process is green, environment-friendly, flexible in operation, efficient in production and low in fault rate, and the prepared composite brown rice has more complete nutrition and finer taste than the common brown rice.
Owner:ANHUI LV ZHEN FANG AGRI SCI & TECH

Method for preparing iron-based magnetic activated carbon by catalytic activation of radix puerariae waste residue with compound enzyme

The invention provides a method for preparing iron-based magnetic activated carbon from by catalytic activation of radix puerariae waste residue with compound enzyme, and belongs to the technical field of activated carbon. The method comprises the steps of by taking the radix puerariae waste residue as the raw material, carrying out raw material pretreatment, preparing a radix puerariae activated substrate through catalytic activation with compound enzymes (cellulase, ligninase and pectinase), and preparing the magnetic activated carbon by doping iron, thereby obtaining the product. The method provided by the invention has the characteristics of wide raw material source, low waste material utilization cost, few production steps and low process energy consumption and no secondary pollution, and is beneficial to environment protection; the activated carbon product are excellent in adsorptive property and the magnetic properties and wide in application, and secondary pollution caused by difficult activated carbon recovery is not generated, etc. The method can be widely applied to preparation of the magnetic activated carbon by using the radix puerariae residue solid wastes as raw materials and doping iron; the activated carbon prepared by the method can be widely applied to the fields of waste water treatment, oil fume desorption and odor adsorption in food preservation and the like.
Owner:CHONGQING TECH & BUSINESS UNIV

Method for extracting maize germ oil assisted by ethyl alcohol and steam explosion

The invention discloses a method for extracting maize germ oil assisted by ethyl alcohol and steam explosion and belongs to the technical field of elaborate processing of the agricultural and sideline products. The method comprises the steps of after using low-concentration citric acid solution to immerse the maize, adopting the steam explosion method to greatly shorten the thermal processing time; adopting ethyl alcohol solution as oil extracting medium and adopting a demulsifier to substitute plenty of enzymes used in the traditional aqueous enzymatic method so as to save the production cost and modify the quality of the product. The method used in the invention has the advantages of high oil extracting efficiency, low cost and high quality, and solves the problems of low oil extracting efficiency, high cost and long period of maize germ oil extracting process in the traditional aqueous enzymatic method.
Owner:JIANGNAN UNIV

Toothpaste for eliminating yellow stains of teeth or tartar arising from smoking and preparation method thereof

The invention disclose a toothpaste for eliminating yellow stains of teeth or tartar arising from smoking and preparation method thereof. The toothpaste comprises the following ingredients by weight: 30-50% of assistant rubbing agents, 0.8-1.5% of an adhesive, 1.0-3.0% of a foaming agent, 10-25% of a humectant, 0.01-0.1% of a sweetener, 0.1-0.5% of essence, 0.2-1.0% of an antiseptic, and the balance being water. The assistant rubbing agents are composed of the following ingredients by weight: 25-55% of calcium hydrogen phosphate, 40-70% of walnut shell powder, and 0-20% of loofah sponge powder, each of which serves as a rubbing agent and has a superior friction property. The walnut shell powder is processed by microwave to be loose, thereby avoiding tooth damage and increasing adsorption and dissolving of cigarette tar and tartar. The toothpaste can eliminate yellow stains of teeth and tartar, and cannot damage the teeth, is safe and effective, and is low in cost.
Owner:HUBEI CHINA TOBACCO IND +1

Radix angelicae sinensis traditional Chinese medicine decoction pieces and preparation method thereof

The invention relates to the technical field of traditional Chinese medicine decoction pieces, in particular to radix angelicae sinensis traditional Chinese medicine decoction pieces and a preparationmethod thereof. The preparation method comprises the following steps of A, material selection and washing; B, infiltration; C, slicing and steaming; D, vacuum freeze drying and smashing; E, encapsulation; F, drying and tabletting. The preparation method is simple in process, the operation is easy to control, the production efficiency is high, and the cost is low; through encapsulation, active functional ingredients in radix angelicae sinensis are effectively protected, the water content is equal to or lower than 4.5%, the ligustilide content is 57.83%-58.64%, the ferulic acid content is 0.061-0.073%, the radix angelicae sinensis traditional Chinese medicine decoction pieces prepared by using the method are easy to dissolve and easy to digest and absorb, the dissolution rate is 97.25-98.88%, and bacteria are not easy to breed. The content of aflatoxin B1 is 1.6-2.3 microgram / kg, the shelf life is long, the quality is stable and the preparation method can be used for massive industrialproduction.
Owner:广东元德中药饮片有限公司

Method for preparing chitosan modified carboxylation cotton fabric in ionic liquid medium

The invention discloses a method for preparing a chitosan modified carboxylation cotton fabric in an ionic liquid medium. The method is characterized by comprising the following steps: firstly, dissolving low-crystallization chitosan into an ionic liquid, carrying out selective oxidation on a cotton fabric after desizing and boiling in isopropanol in a concentrated nitric acid / strong phosphoric acid-sodium nitrite system, further stirring a carboxylation cotton fabric and chitosan in the ionic liquid medium at 30-40 DEG C to implement an amide chemical reaction, removing the ionic liquid, carrying out vacuum drying and water washing, thereby obtaining the chitosan modified carboxylation cotton fabric. The method disclosed by the invention is simple and feasible, rapid in amide reaction, high in grafting rate, possible in ionic liquid recycling and green and environmentally friendly, the prepared chitosan amide modified cotton fabric has a long-lasting and efficient antibacterial capability, is affiliative to human bodies, is safe and sanitary and good in wearing comfort, overcomes adverse influence caused by chemical cross-linking agents and acid solutions upon excellent propertiesof cotton fabrics and human health in conventional chitosan modification, and has wide practical application prospects.
Owner:SHAOXING MAIBAO TECH CO LTD

Macromolecular sound absorption composition board and preparation method thereof

ActiveCN108481861AEnhance weakening effectStrong abatement abilitySynthetic resin layered productsWood layered productsFiberPolyvinyl chloride
The invention discloses a macromolecular sound absorption composition board which comprises a macromolecular foaming layer, mixed aerogel layers and reinforcing layers, wherein two sides of the macromolecular foaming layer are respectively provided with the mixed aerogel layers and the reinforcing layers. The macromolecular sound absorption composition board is characterized in that the macromolecular foaming layer contains the following components in parts by weight: 80-100 parts of polyvinyl chloride, 15-25 parts of porous ceramic particles, 8-15 parts of a foaming agent, 20-25 parts of a flame retardant, 2-3 parts of acrosslinking agent, 15-25 parts of EVA particles, 40-60 parts of spay fusing fiber, 2-5 parts of a gas forming admixture, and 15-20 parts of magnesium chloride. The macromolecular sound absorption composition board has the advantages that because the porous ceramic particles, the EVA particles, the spay fusing fiber and the like are added, the sound absorption capacityis greatly improved, the diameter of the spay fusing fiber can reach micro order, and the induction strength to low-frequency low-strength sound wave is relatively strong; because the mixed aerogel layers are small in density and more in gaps, vibration is easy to generate to convert the energy of sound wave to mechanical energy or to internal energy to be dissipated. Therefore, the macromolecular sound absorption composition board not only is strong in high frequency sound wave reduction capacity, but also is stronger in low frequency sound wave reduction capacity compared with that of general absorber materials.
Owner:兴仁县详务新型节能建材有限公司

Microbial fertilizer

The invention discloses a microbial fertilizer, which comprises, by weight, 1 to 3 parts of rhizobium, 1 to 3 parts of photosynthetic bacteria, 1 to 3 parts of azotobacter, 1 to 3 parts of potassium and phosphate decomposition bacteria, 3 to 5 parts of soil fungicide, 20 to 30 parts of plant ash, 5 to 10 parts of straw, 5 to 10 parts of pig and cow manure, 3 to 5 parts of sawdust, 3 to 5 parts ofrice bran and several parts of rot leafy soil, medium and water. In preservation or use of the microbial fertilizer, the active environment of bacteria can be improved, nutrients for can be provided for microorganisms in the bacterial fertilizer, the formation of bacteria can be promoted, and the activity of bacteria and the application effect of the microbial fertilizer can be improved.
Owner:河北百禾丰化肥有限公司

Production method of organic oat nutritional powder

The invention discloses a production method of an organic oat nutritional powder. The production method includes the steps of: 1) after bran is removed, cleaning and drying oat, and crushing the oat into coarse oat grains; 2) mixing the coarse oat grains with oat bran, which has been soaked, dehydrated and crushed into fine powder, adding a mixed solution and stirring the mixture, and performing pressure varying treatment in a sealing chamber so that the mixed solution, which contains a traditional Chinese medicine extraction liquid, is permeated and fixed in the coarse oat grains and the oat bran powder, thereby locking the traditional Chinese medicine extracts inside the oat; and 3) boiling the coarse oat grains and the oat bran powder in pure water to prepare oat congee, and spray-drying the oat congee to obtain the organic oat nutritional powder. The organic oat nutritional powder contains traditional Chinese medicine components, is free of preservatives and stabilizing agent, has a slight sweet taste, and has the effects of reducing blood glucose, removing cholesterol, reducing body weight and slimming body, and beautifying and nourishing face.
Owner:黑龙江燕麦乡食品科技有限公司

Granular biological organic fertilizer

The invention discloses granular biological organic fertilizer. The organic fertilizer is prepared from the following raw materials in parts by weight: 400-500 parts of a decomposed organic material,100-150 parts of inorganic fertilizer, 40-60 parts of inorganic clay, 20-40 parts of humic acid, 20-40 parts of porous starch, 20-40 parts of expanded feather meal, 10-20 parts of activated sludge, 5-10 parts of microbial powder and 1-3 parts of a coated binder. The total effective viable bacteria count in the microbial powder is greater than or equal to 0.2*10<8>cfu / g. The granular biological organic fertilizer can effectively fix functional bacteria on fertilizer particles, the survival rate is high, the functional bacteria is not easy to lose, after applied into soil, can rapidly and massively multiply, and thus gives full play to the fertilizer effect and improves the yield of crops.
Owner:亳州司尔特生态肥业有限公司

Treatment agent for formaldehyde wastewater

The invention discloses a treatment agent for formaldehyde wastewater and belongs to the field of wastewater treatment. According to the treatment agent for formaldehyde wastewater, coconut shell granules are obtained through subjecting coconut shells to crushing and alkali dipping and then are subjected to liquid-nitrogen freezing and pyrolyzing, so that the porosity among the coconut shell granules is improved, and the adsorption capacity is also improved; thiourea added can be combined with formaldehyde as a nucleophilic reagent, and a produced combination can be adsorbed by a diatomite ingredient of the treatment agent, so as to achieve the effect of stably removing the formaldehyde; diatomite is modified with acrylic acid and citric acid containing three -COOH, so that the uniformityof air hole distribution is improved, and the formaldehyde can be adsorbed thoroughly; and abietate added has tackifying and film forming properties and high stability, has certain plasticity and hasgood wettability to the surface of an adherend, so that the treatment agent durably maintains formaldehyde combining and adsorbing stability. According to the treatment agent, the problem that formaldehyde wastewater treatment agents frequently used at present are poor in effect and stability during formaldehyde treatment is solved.
Owner:张芸

Method for preparing microbial immobilized material

The invention discloses a method for preparing a microbial immobilized material and belongs to the technical field of microbes. The method disclosed in the invention comprises the following steps: taking marine penicillium janthinellum and penicillium simplicissimum as raw materials, adding glucose and other nutritive materials, and mutually twining to form bulb forms under the effect of applied shear force to obtain an immobilized matrix, so that the biological activity of the immobilized microbes is improved, the microbes are loaded in the immobilized matrix, the microbes are difficult to degrade, and the service time of the microbes is prolonged; taking ferric chloride hexahydrate and ferrous chloride as raw materials, adding sodium hydroxide, a silane coupling agent and amino hexamethylene glycol, and forming stable amido bonds. The stable performance of the immobilized material is improved and can be recycled based on magnetic substances, the microbes can be repeatedly loaded, andthe service life is prolonged. The problem that the conventional carrier is poor in biological adsorption property and easy to degrade is solved.
Owner:常州市蒽盗钟情生物科技有限公司

Preparation method of magnetic microcapsules coated with metal complex

The invention relates to a preparation method of magnetic microcapsules coated with metal complex. The preparation method includes: adding gelatin into the aqueous solution of the metal complex, stirring to obtain a gel-metal complex aqueous solution, adding nano magnetic powder, and stirring and dispersing to obtain magnetic microcapsule wall material suspension; mixing liquid paraffin with emulsifier, performing water bath heating under a stirring condition to obtain an oil phase dispersion phase, adding into the wall material suspension, stirring, cooling to 1-10 DEG C in an ice bath manner, regulating pH to be 3, dropwise adding the aqueous solution of glutaraldehyde under a stirring condition to perform crosslinking, and performing suction filtration and washing to obtain the magnetic microcapsules coated with the metal complex. The preparation method is simple, practicable, few in influence factors, and high in potential and application value in the treatment of organic matter in environment wastewater.
Owner:DONGHUA UNIV

Plasticized polymer ionic liquid film and method for selective separation of chromium (VI) through same

The invention discloses a plasticized polymer ionic liquid film and a method for selective separation of chromium (VI) through the same. The method comprises the steps that 1.5-2.5% of fatty amine and3.0-3.5% of polyvinyl chloride are taken as reaction raw materials to be subjected to reactive blending in 91.5-93.0% of an organic solvent, then 1.0-4.0% of a plasticizer is added, the solvent is removed through volatilization, the plasticized polymer ionic liquid film is prepared through acidification transformation, and selective separation of the chromium (VI) in chromium (VI) feed liquid isconducted through the plasticized polymer ionic liquid film under synchronous conducting of extraction and reverse extraction. A film preparation technology is simple, the using amount of a reagent issmall, and selectivity to the chromium (VI) is high; energy consumption is low in the extraction process, and secondary pollution is avoided; a film phase is not prone to leakage, a liquid film is stable in property, and the plasticized polymer ionic liquid film has the ability of continuous and repeated application; and the plasticized polymer ionic liquid film and the method can be applied to industrial application of selective removal of the chromium (VI) in the chromium-containing wastewater.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Preparation method of super-soft and highly-hygroscopic silk fibers

The invention provides a preparation method of super-soft and highly-hygroscopic silk fibers. The preparation method comprises the following specific steps of firstly, boiling and degumming silk fibers, and then immersing the silk fibers into warm water for performing swelling treatment; performing rubbing friction to obtain pretreated silk fibers; secondly, immersing the pretreated silk fibers into a solution containing nano-hydrogel particles, performing ultrasonic oscillation, taking out and spinning to obtain highly-hygroscopic silk fibers; adding the highly-hygroscopic fibers into ice water, and slowly heating and stirring; adding biological enzyme, reacting for a period of time, then taking out, sufficiently washing and naturally airing to obtain the super-soft and highly-hygroscopic silk fibers. The natural silk fibers prepared by the method are modified by physical and biological methods to be endowed with super-soft and highly-hygroscopic properties; no chemical reagent is added, no toxicity and residues are caused, and the nature of the silk fibers is retained, so the super-soft and highly-hygroscopic silk fibers are environmentally-friendly.
Owner:ZHEJIANG WENXIANG TEXTILE & GARMENT

Preparation method of activated carbon adsorbent for regenerating and adsorbing methyl orange

The invention discloses a preparation method of an activated carbon adsorbent for regenerating and adsorbing methyl orange, which comprises the following steps of crushing an activated carbon raw material into particles with the particle size of 1.2-3 cm, soaking in an acid solution for 6-10 hours, then fishing out, washing with distilled water to be neutral, drying, soaking in an alkaline solution for 8-15 hours, then fishing out, washing with distilled water to be neutral, and drying, adding copper sulfate and ferrous sulfate into distilled water, then adding the activated carbon raw material in the step S1 into the solution, adding graphene oxide, transferring into a high-pressure reaction kettle, and carrying out high-temperature reaction, cooling, filtering and drying, putting an activated carbon raw material into a tubular furnace, introducing mixed gas, calcining for 4-8 hours, and cooling to obtain an activated carbon precursor, adding a surfactant into distilled water, then adding an activated carbon precursor, stirring, filtering, drying, then adding the dried activated carbon into a dopamine aqueous solution, adding into a 6-15% tris-HCl buffer solution, stirring for 6-12 hours, filtering, and drying to obtain the activated carbon.
Owner:陈章平

Preparation method of distiller's grain adsorbing material for heavy metal ion adsorption

The invention discloses a preparation method of a distiller's grain adsorbing material for heavy metal ion adsorption. The preparation method is characterized by comprising the following steps of: selecting byproduct grains from production of Luzhou-flavor distilled spirit, naturally drying, crushing, screening by a screen of 20-100 meshes, and collecting screen underflow to obtain pre-treated grains; and adding 1-30 parts by weight of pre-treated grains to 1-300 parts by weight of 1-20wt% acid aqueous solution, soaking at the temperature of 50-150 DEG C for 0.1-6 hours, filtering, washing solid with water to be neutral, drying at the temperature of 30-60 DEG C for 12-48 hours, and grinding to obtain the distiller's grain adsorbing material. According to the invention, the adsorbing material is prepared by adopting distiller's grains with wide sources, thus the process is simple and the cost is low; and the prepared adsorbing material is used for treatment of wastewater containing heavy metal ions, and the adsorption rate is up to 80-95%, thus the resource utilization of grain waste is realized and the purpose of treating a waste with another waste is achieved.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Preparation method and application of plasma activated chitosan micropheres

The invention discloses a preparation method and an application of plasma activated chitosan microspheres. The preparation method comprises the steps as follows: (1) preparation of a core material: active bentonite, an acid solution, sodium carbonate, a dispersing agent and deionized water are placed in a reactor to form a suspension, ferric nitrate and cerous nitrate are added, the mixture continues to react for 25-36 h, centrifugal separation is performed, and metallic element doped bentonite is obtained; (2) preparation of chitosan microspheres; (3) plasma activation treatment of the chitosan microspheres: the chitosan microspheres are placed in a plasma activation instrument and treated with plasma CO2 gas for 200-400 s under the pressure of 30-80 Pa, and the plasma activated chitosan microspheres are obtained. The prepared plasma activated chitosan microspheres can obviously adsorb solid substances and improve the content of organic acid, can be applied to a green plum wine clarification process to improve the flavor of green plum wine and enhance the aroma of the green plum wine and has high market popularization value.
Owner:诏安紫梅山果酒研发有限公司

Process for preparing pineapple beer

The invention discloses a process for preparing pineapple beer. The prepared pineapple beer not only has high wine yield, but also has excellent taste, color and flavor and outstanding fruit flavor. Honey peaches, kiwi fruits and pineapples are reasonably compounded, regulated and controlled, so that the obtained beer is delicious with slight sweetness and sourness and has a good flavor; in the juicing process, sodium chloride is added, not only improves the yield of fruit juice, but also reconciles the mouth feel of the fruit juice at the same time, and removes the sour and astringent taste;the added yogurt provides rich protein and improves the wine yield; meanwhile, the yogurt and beer yeast play a synergistic fermentation role, further improve the wine yield, and enrich the aroma components of the pineapple beer at the same time, so that the fruit flavor and the wine flavor of the pineapple beer are rich, and the comprehensive quality is improved; and barley malt is subjected to puffing treatment to loosen the internal structure, chemical changes take place in the starch of the barley malt at the same time, dextrin and sugar are generated, the saccharification process and thefermentation efficiency are accelerated, and the wine yield is improved.
Owner:安徽盛雪食品有限公司

Water-based paint for purifying formaldehyde of furniture

The invention discloses a water-based paint for purifying formaldehyde of furniture. The water-based paint for purifying the formaldehyde is prepared from the raw materials in parts by weight: 95 to 105 parts of binder, 4 to 6 parts of styrene, 1 to 2 parts of benzoyl peroxide, 2 to 4 parts of dimethylethanolamine, 45 to 55 parts of filler, 1 to 2 parts of resin-wrapped aluminum paste, 1.5 to 2.5 parts of polyvinyl butyral, 4 to 5 parts of flash-rust prevention agent, 1 to 2 parts of salt spray resistant agent, 2 to 4 parts of dispersing agent, 0.5 to 1.5 parts of defoaming agent, 2 to 4 parts of thickening agent, and 40 to 60 parts of water. The water-based paint for purifying the formaldehyde provided by the invention is level and smooth in paint surface, high in coating adhesion force, not easy to strip or peel, and long in service life, can be widely produced and continuously replace an existing material, is lower in cost, does not contain toxic substances such as formaldehyde, benzene and ammonia, and can absorb hazardous substances such as formaldehyde emitted by indoor floors and furniture.
Owner:安徽三义和能源科技有限公司
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