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Preparation method of one-way wet conduction nano-fiber multilayer composite membrane with wettability gradient
InactiveCN107059251AExcellent unidirectional moisture transfer performanceWaterproofNon-woven fabricsFiberHydrophobic polymer
The invention discloses a preparation method of a one-way wet conduction nano-fiber multilayer composite membrane with the wettability gradient. The method comprises the following steps that hydrophilic nano materials are dispersed in solvent, the nano materials are dispersed uniformly through ultrasound, a hydrophilic polymer is dissolved in the dispersing agent, a spinning solution A1 is obtained, and a hydrophilic nano-fiber membrane is deposited on a receiving base material through an electrostatic spinning method; hydrophilic nano materials are dispersed in solvent, the nano materials are dispersed uniformly through the ultrasound, a hydrophilic polymer is dissolved in the dispersing agent, and a spinning solution A2 is obtained; a hydrophobic polymer is dissolved in solvent, and a spinning solution B1 is obtained; the two spinning solutions are deposited on the hydrophilic nano-fiber membrane to form at least one diversion layer through the electrostatic spinning method; a hydrophobic polymer is dissolved in solvent, a spinning solution B2 is obtained, a hydrophobic nano-fiber membrane is deposited on the diversion layers through the electrostatic spinning method, and the one-way wet conduction nano-fiber multilayer composite membrane with the wettability gradient is obtained.
Owner:DONGHUA UNIV
Graphene/ stannic oxide nanometer compounding resistance type film gas sensor and manufacturing method thereof
InactiveCN102636522AFine 3D NanostructuresLarge specific surface areaMaterial resistanceResponse sensitivityNano structuring
The invention discloses a graphene / stannic oxide nanometer compounding resistance type film gas sensor, which takes ceramics as a basal body. The surface of the ceramic basal body is photo-etched and evaporated with multiple pairs of interdigital gold electrodes, and is coated with gas-sensitive films of graphene and stannic oxide nanometer composite, and the manufactured resistance type film gas sensor has the advantages of simple manufacturing process and low cost. The gas-sensitive film is composed of a grapheme namosheet layer in a three-dimensional nano-structure and stannic oxide crystal particle composite with an orientated growth characteristic, the introduction of the graphene can favorably reduce the resistance of sensor elements, and the formation of the three-dimensional nano-structure can obviously enhance the specific surface area of the composite, thus the absorption and the diffusion of the gas can be promoted so as to greatly enhance the room temperature gas sensitive response sensitivity of elements. The graphene / stannic oxide nanometer compounding resistance type film gas sensor has the characteristics of high response sensitivity to low concentration ammonia, fast response, favorable recovering performanc, capability of carrying out the detection at the room temperature, and the like, which can be widely applied in the agricultural and industrial production process, and the room temperature detection and control of the concentration of ammonia in the atmospheric environment.
Owner:ZHEJIANG UNIV
Modified smectite and method for producing the same and its application
ActiveCN101272986ANot easy to raise dustReduce moisture contentCosmetic preparationsOther chemical processesChemical compositionMontmorillonite
Disclosed is an inorganic medicine, particularly modified montmorillonite, method for preparing the same and use thereof. The said modified montmorillonite means that dioctahedron of natural montmorillonite is not destroyed and basic chemical composition for the same is not changed, and the microstructure stacked from dioctahedron layer is changed to decrease the thickness of stacking layer and to expose and increase the end face charge and the interlayer charge of montmorillonite, thereby resulting in its lower degree of C axis order. The present medical use of montmorillonite is thus significantly strengthened, particularly the reversal treatment effect on chronic atrophic gastritis. Also disclosed are a medicine composition containing modified montmorillonite and the reversal treatment effect of natural montmorillonite on chronic atrophic gastritis.
Owner:ZHEJIANG HAILISHENG PHARM CO LTD
Polyether graft poly-carboxylic acid concrete water reducer preparation
Production of polyether graft poly-carboxylic acid concrete water reducer is prepared by sulfonating styrene-anhydride multipolymer with anhydride content 10í½50 mol% and relative molecular mass 2000í½20000 from sulfonating agent of non-destructive acid anhydride group, esterifying grafting polyether side chain on acid anhydride key, and dissolving in water. Its advantages include simple process, no catalyst, higher fluidity of cement concrete and compression strength.
Owner:海南中科翔新材料科技有限公司
Compound microbial organic fertilizer and preparation method thereof
ActiveCN103113167AStrong stress resistancePromote growthFertilizer mixturesPotassiumOrganic fertilizer
The invention relates to a compound microbial organic fertilizer and a preparation method thereof. The compound microbial organic fertilizer is prepared from the following ingredients in parts by weight: 1-4 parts of trichoderma viride JUWEI002 fermentation liquor, 1-4 parts of bacillus subtilis JUWEI001 fermentation liquor, 20-30 parts of turfy soil, 33-38 parts of tobacco residue, 33-38 parts of silkworm faeces, 6-7 parts of calcium powder and 1-2 parts of potassium fulvate. The compound microbial organic fertilizer disclosed by the invention has the advantages that the quality of crops can be remarkably improved, the yield of the crops is increased, and the soil structure is improved.
Owner:JINAN ZEYUAN BIOTECH
Method for producing water-soluble fertilizers with biochemical humic acid
InactiveCN102942396ASolve the problem of water solubilityEasy to operateBio-organic fraction processingOrganic fertiliser preparationDiseaseSolubility
The invention relates to a method for producing water-soluble fertilizers, in particular to a method for producing the water-soluble fertilizers with biochemical humic acid. The method is characterized by including matrix fermentation, concentrated liquor preparation and finished product preparation: firstly, weighing prepared concentrated liquor; secondly, adding modifiers, heating and stirring the liquor in the whole process, controlling the temperature to range from 40 DEG C to 60 DEG C, and cooling the liquor to be below 30 DEG C after reaction to obtain the fertilizers; and thirdly, packaging the fertilizers. The mass ratio of the concentrated liquor, the modifiers and inorganic auxiliary materials is (55-80): (0.1-2): (20-45). The method is simple in manufacture, easy in operation and high in actionability, solves the problem of water solubility of organic fertilizers, provides nutrition, improves soil, prevents diseases and insect pests, and integrates the effects of fertilizer supplementation, bacterium resistance and disease resistance. The fertilizers have balanced nutrition, stable state and persistent fertilizer effects, crop yield can be remarkably improved, the quality of agricultural products is improved, and soil fertility is enhanced.
Owner:中创鑫源农业科技有限公司
Preparation method of whole continuous nano-porous copper
The invention relates to a preparation method of whole continuous nano-porous copper, comprising the following steps: (1) heating the pure metallic aluminum and copper to the molten state, stirring and mixing the mixture to form Cu-Al alloy liquid; (2) fast blowing the alloy liquid out with inert gas to solidify the molten liquid metal on the copper rollers which rotate in high speed and prepare alloy strips, or solidify the molten liquid metal in copper molds to prepare alloy plates or alloy bars; and (3) performing dealloying process to the obtained alloy, cleaning the alloy in the distilled water to be neutral and airing the alloy to obtain nano-porous copper. The beneficial effects of the invention are as follows: (1) the produced nano-porous copper is whole continuous and whole continuous nanosize bulk materials can also be prepared; (2) low concentration of corrosion solution is used to prepare nano-porous copper in the method of the invention, and the operation process is simple and the method is suitable for large-scale industrialized production; and (3) according to the components of the mother alloy and the types of corrosion solution, the structure and size of nanoporous copper can be regulated.
Owner:UNIV OF JINAN
Preparation method of phenolic resin aerogel
ActiveCN103709346AStructural regulationControl mechanical propertiesOther chemical processesCarbon preparation/purificationAnhydrous ethanolOrganic solvent
The invention discloses a preparation method of phenolic resin aerogel. The preparation method is characterized in that chitosan, one or more acid, one or more filling materials, one or more phenols, one or more aldehydes, and water or a water-anhydrous ethanol mixture are mixed; the mixture undergoes a hydrothermal reaction to produce phenolic resin organogel; the phenolic resin organogel is immersed in an organic solvent for replacement; and the replacement product is subjected to supercritical CO2 drying so that the phenolic resin aerogel is obtained. The preparation method has simple processes and safe and reliable reactions and realizes adjustment of a structure and mechanical properties of the phenolic resin organogel. The structure and density of the phenolic resin aerogel obtained by drying and porosity and a specific surface area of the derivative porous carbon material obtained by carbonization of the phenolic resin aerogel are adjusted and controlled well.
Owner:UNIV OF SCI & TECH OF CHINA
Method for preparing nano porous gold
The invention belongs to the field of nano-material preparation, in particular to a method for preparing a nano porous gold. In the invention, the nano porous gold is prepared by combining rapid setting and dealloying. The method comprises the following steps: firstly heating pure aluminium and gold to molten state; secondly; rapidly blowing out alloy liquid with inert gases to cause molten liquid metals to rapidly set on a copper roller which rotates at high speed to prepare alloy ribbons; and finally, carrying out dealloying treatment in acid or alkaline solution. After corrosion process, the nano porous gold is washed till neutrality in distilled water. In the method, the nano porous gold can be obtained by selecting corrosion solution with lower concentration, therefore, the nanoporous gold has simple and convenient operating process and is suitable for large-scale industrial production. In the method, the structure and size of the nanoporous gold can be adjusted according to the ingredients and corrosion solution of master alloy.
Owner:SHANDONG UNIV
Method for preparing nanometer porous silver
The invention belongs to the field of preparing a nanometer material, and particularly relates to a method for preparing nanometer porous silver. In the invention, the nanometer porous silver is prepared by the method combining the rapid solidification and the dealloying, wherein the method comprises the following steps: firstly, heating pure metal aluminum and silver to a molten state; secondly, utilizing inert gas to quickly blow out an alloy liquid and quickly solidifying the molten metal on a copper roller rotating at a high speed, so that an alloy ribbon is prepared; thirdly, performing dealloying treatment in acid etchant solution; and finally, after the corrosion, washing the nanometer porous silver to neutral in distilled water. The method uses the etchant solution in low concentration to obtain the nanometer porous silver, the operating process is simple, and the method is also suitable for mass industrialized production. The method can also control the structure and size of the nanometer porous silver according to compositions of the master alloy and types of the etchant solution.
Owner:SHANDONG UNIV
Walnut rich in selenium and organic fertilizer rich in selenium for walnut rich in selenium
ActiveCN103918520ASave resourcesEasy to produceFertilising methodsCultivating equipmentsOrganic fertilizerMicrogram
The invention belongs to the field of agricultural technologies and particularly relates to a walnut rich in selenium and organic fertilizer rich in selenium for the walnut rich in selenium. The walnut and the organic fertilizer are mainly used for solving the technical problems that the fertilization amount of existing fertilizer for producing subsidiary agricultural products rich in selenium is difficult to control, the environment is polluted, dependence of crops is prone to generation, land is barren, and cost is high. According to the technical scheme, the walnut rich in selenium is obtained through fertilization of the self-made organic fertilizer rich in selenium, the selenium content of a walnut kernel ranges from 200 microgram per kilogram to 800 microgram per kilogram, and the walnut and the organic fertilizer have the advantages of being environmentally friendly, free of pollution and low in cost.
Owner:汾州裕源土特产品有限公司
Suspension microorganism carrier and its preparation method
InactiveCN1868919AAccelerateImprove adsorption performanceSustainable biological treatmentBiological water/sewage treatmentAqueous solutionSulfuric acid
A suspended microbe carrier with high microbial affinity, adsorption and hydrophilicity is a macroreticular skeleton and millipore skeleton combined structure. Its preparing process includes such steps as preparing the aqueous solution of polyvinyl alcohol, proportionally adding sulfuric acid and formaldehyde solution, reaction, adding powdered imorganic filler, high-speed stirring, filling it in a mould, foaming by filling the pre-heated air via millipore air distributor, and treating at 40-80 deg.C for 4-24 hr.
Owner:NANCHANG UNIV
Nitrile resin monomer, nitrile resin polymer and preparation method of nitrile resin monomer and nitrile resin polymer
InactiveCN102976972ALow viscosityReduce liquidityCarboxylic acid nitrile preparationOrganic compound preparationPolymer scienceResin matrix
The invention discloses a nitrile resin monomer, a nitrile resin polymer and a preparation method of the nitrile resin monomer and the nitrile resin polymer, belonging to the technical field of organic polymer materials. The nitrile resin monomer is a tetraphthalonitrile resin monomer containing benzoxazine cycle, and the nitrile resin polymer is a product obtained by heating polymerization of the nitrile resin monomer. The nitrile resin monomer has a low viscosity, a good mobility and the processing performances of low-temperature curing and the like at a low temperature. The nitrile resin polymer has the good curing performances of self-flame resistance, adhesion, heat stability and the like. The resin monomer has the good processing performances of benzoxazine resins, and the resin polymer has the high-temperature resistance of nitrile resins, thus reducing the curing processing temperature and being capable of being used in a high-temperature temperature, namely, having the advantages of low temperature processing, medium temperature formation and high temperature use; and the resin monomer and the resin polymer can be used in the fields of coatings, adhesives, electronic packaging materials, aeronautics, astronautics, ships, resin matrix composites and the like. The preparation method is simple and easy to control, low in reaction temperature, energy-saving, and suitable for industrialized production.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Accurate structure POSS hybridization low dielectric material preparation
InactiveCN101348568AMild reaction conditionsUniform and Orderly ConnectedPlastic/resin/waxes insulatorsPorosityChemical synthesis
The invention relates to a preparation method for a finely structured POSS hybridization low dielectric material. The method takes a POSS monomer containing an active group and dual functional group organic micromolecules capable of having a click chemical reaction as the precursor of the finely structured hybridization low dielectric material, and makes use of an environmentally friendly click chemical synthesis method to connect the finely structured POSS molecules and the organic micromolecules onto the low dielectric material structure orderly. Through changing the composition, structure and performance of the organic molecular chain connected with POSS, the method realizes the adjustment and control of the structure, porosity, thermal property, mechanical property and dielectric constant of the finely structured hybridization low dielectric material.
Owner:DONGHUA UNIV
PEAK (polyaryletherketone) polymer with POSS (polysilsesquioxane) structure and preparation method
The invention relates to a PEAK (polyaryletherketone) polymer with a POSS (polysilsesquioxane) structure and a preparation method and belongs to the field of high polymer materials. The PEAK polymer containing carboxyl and fluorine is prepared by introducing a carboxyl structure into a fluorine-containing PEAK main chain structure through nucleophilic substitution. The polymer has excellent heat stability, good dissolving property and lower dielectric constant. Further, POSS containing hydroxyl functional groups is grafted to a fluorine-containing PEAK side chain structure through Friedel Crafts acylation reaction, so that characteristics of POSS and fluorine-containing PEAK are organically combined, the dielectric constant of a material is further reduced, the heat resistance of the material is improved, and different using requirement are met.
Owner:吉林省聚科高新材料有限公司
Polysaccharide composition capable of adjusting structure of intestinal floras and applications thereof
ActiveCN106943423AStructural regulationGood for healthOrganic active ingredientsDigestive systemBiologyGinseng
The invention discloses a polysaccharide composition capable of adjusting the structure of intestinal floras and applications thereof. The composition is composed of konjak polysaccharide and ginseng polysaccharide according to a weight ratio of 1-99:1-99. The results of a large amount of tests show that konjak polysaccharide and ginseng polysaccharide are combined according to a specific ratio, the composition can change the intestinal floras specifically, the structure of intestinal floras is regulated, the health of intestinal tracts is improved; the konjak polysaccharide and ginseng polysaccharide are used together to generate a synergistic effect on regulating the structure of intestinal floras; and the composition can be used to treat enteric flora disturbance, is safe, and does not have any side or toxic effect.
Owner:JIANGSU PROVINCE INST OF TRADITIONAL CHINESE MEDICINE
Probiotics and Chinese herbal medicine compound preparation with hypoglycemic function
ActiveCN103656076AHypoglycemicStructural regulationMetabolism disorderBacteria material medical ingredientsBiotechnologyLactobacillus rhamnosus
The invention belongs to the field of health-care products, and particularly relates to a probiotics and Chinese herbal medicine compound preparation with a hypoglycemic function. The preparation is formed by mixing the components in parts by weight as follows: 25-30 parts of dioscorea roots, 15-25 parts of pueraria roots, 20-30 parts of cinnamon, 20-40 parts of lycium berries and 30-40 parts of freeze-dried probiotics powder, wherein probiotics comprises bacteria in percentage by weight as follows: 40% of bifidobacterium adolescentis, 40% of bifidobacterium longum, 10% of lactobacillus plantarum and 10% of lactobacillus rhamnosus. The preparation has the hypoglycemic function.
Owner:NANCHANG UNIV
BeZnOS compound semiconductor material as well as preparation method and application thereof
InactiveCN105734491AControl the working wavelengthImprove solubilityVacuum evaporation coatingSputtering coatingSolubilitySemiconductor materials
Owner:HUBEI UNIV
Low temperature condition preparation of orientated growth nanometer flaky Bi2Fe4O9
ActiveCN101319381AImprove performanceChange performancePolycrystalline material growthFrom normal temperature solutionsAlcoholAqueous solution
The invention discloses a method for synthesizing a highly directional nano flake Bi2Fe4O9 crystal at a low temperature. The method mainly adopts the hydrothermal preparation method and comprises the following steps that: Bi(NO3)3.5H2O and Fe(NO3)3.9H2O with the same mol ration are dissolved in a dilute nitric acid, a sodium hydrate aqueous solution is titrated into the mixed solution until the precipitation is complete, and the mixture is filtered and washed by water until the solution is neutral. The method is characterized in that the obtained precipitation is dissolved in a sodium hydrate aqueous solution with a concentration of between 8 and 20 mol per liter, 2 milliliters of H2O2 solution against 40 milliliters of the H2O2 solution are added, the mixture is put in a reaction kettle and reacts for 12 to 72 hours at a temperature of between 160 and 200 DEG C, the product is washed by de-ionized water and alcohol and is dried in an oven, and the obtained final product is the directionally growing nano flake Bi2Fe4O9.
Owner:山东产研陶瓷研究院有限公司
Suckling pig feed and preparation method thereof
The invention discloses suckling pig feed which comprises the following components in parts by weight: 35-40 parts of corn, 20-25 parts of extruded corn, 10-15 parts of bean pulp, 5-10 parts of fermented miscellaneous meal, 1-5 parts of syrup, 0.1-0.5 part of acidifying agent, 0.03-0.08 part of phytase, 0.1-0.5 part of zinc oxide, 0.1-0.5 part of lysine, 0.1-0.5 part of choline, 0.1-0.5 part of threonine, 0.01-0.05 part of tryptophan, 0.1-0.5 part of methionine, 0.1-0.5 part of calcium citrate, 0.5-1 part of monocalcium phosphate, 1-5 parts of plasma protein powder, 1-5 parts of lactose, 2-6 parts of low-protein whey powder, 1-5 parts of white sugar, 5-10 parts of glucose and 0.1-0.5 part of microecological preparation. The suckling pig feed has the beneficial effects that the immunity of suckling pigs is improved, the feed conversion ratio is reduced, the nutritional requirements of the suckling pigs within two weeks from feeding to weaning can be met, the suckling pig feed is high in palatability and high in digestibility, the diarrhea rate of the suckling pigs is reduced, and the production performance of the suckling pigs is improved.
Owner:吉林大北农农牧科技有限责任公司 +1
Method for rapid in-situ detection of object surface pollutants
A method for rapid in-situ detection of object surface pollutants is characterized in that a flexible and semi-transparent surface enhanced Raman substrate is used and is composed of a Raman active nanoparticle assembly body and a flexible polymer; by a way that the substrate is directly affixed to the surface of an object to be detected, or the substrate is rubbed back and forth on the surface of the object to be detected, or the substrate is coiled into a capillary, the adsorption and enrichment capacity of the substrate on the pollutants on the surface of the object to be detected is enhanced, then the on-site rapid in-situ detection of the pollutants on the surface of the object is achieved by a surface enhancing Raman technique. Compared with other detection methods, the method is simple, rapid, low in cost, and beneficial for on-site casual inspection, and has wide application prospects in the fields of environmental monitoring, food safety, medical treatment and health care and the like.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
Application of lactobacillus rhamnosus grx19 in regulation of intestinal floras
InactiveCN105920049AExcellent intestinal colonization abilityStructural regulationMilk preparationDigestive systemCrypt cellLactobacillus rhamnosus
The invention relates to new application of lactobacillus rhamnosus grx19, and discloses application of the lactobacillus rhamnosus in preparation of functional foods and drugs for regulating intestinal floras and preventing viral diarrheas. The lactic acid bacteria grx19 disclosed by the invention has good acid and bile salt tolerance and pathogenic bacteria inhibition, higher surface hydrophobicity, higher self-aggregation ability, and obvious adhesion for small intestinal epithelial crypt cells (IEC-6 cells) of rats shown by cell research. The lactobacillus grx19 disclosed by the invention has the effects beneficial to human health like general lactobacilli, and further can regulate the structures of the intestinal floras and prevent the viral diarrheas, thereby being used for production of the functional foods or drugs.
Owner:YANGZHOU UNIV
Pollution-free paddy rice planting method
InactiveCN105248209AImprove disease resistanceIncrease productionCalcareous fertilisersClimate change adaptationGreen manureRice grain
The invention discloses a pollution-free paddy rice planting method. The method comprises the following steps: A, planting milk vetch as green manure in a rice field, and applying a basic manure, wherein 500-800 kg of the basic manure is applied to each mu of the rice field; B, after the rice field is subjected to exposure, performing rotary tillage, ridge separation, irrigation and rice transplanting; C, applying a compound fertilizer to seedlings after the seedlings are inserted; D, grazing 8-15 7-10-day-old ducks to each mu of the rice field after 15-20 days of rice transplanting, evicting the ducks from the rice field after 25-40 days, spraying a biological pesticide, draining for 7-10 days, topdressing 30-100 kg of the compound fertilizer used in the step C to each mu of the rice field, irrigating till the depth of water is 8-10 cm, grazing 5-10 7-10-day-old ducks to each mu of the rice field again, and evicting the ducks from the rice field before 15-20 days of rice mature. According to the pollution-free paddy rice planting method, the yield is high, pollution is avoided, produced rice tastes good, and meanwhile, high-quality duck is obtained.
Owner:ANHUI MUMAHU AGRI DEV GRP
Preparation method and device of high-conductivity carbon nanotube film
ActiveCN102994980AQuality improvementImprove performanceMaterial nanotechnologyCarbon compoundsTransmittanceNanotube
The invention provides a preparation method and device of a high-conductivity carbon nanotube film. The preparation method comprises the following steps: preparing a carbon nanotube aerosol at high temperature by utilizing a floating catalytic cracking method, introducing the carbon nanotube aerosol into a closed cavity, arranging a substrate in the position corresponding to a slit formed on the closed cavity, inducing a carbon nanotube in the closed cavity to penetrate the slit by an oriented magnetic field, and depositing the carbon nanotube on the substrate in an oriented manner to form the high-conductivity carbon nanotube film. According to the preparation method disclosed by the invention, the large-area, continuous, low-cost and high-efficient preparation of the high-performance carbon nanotube film can be realized; and under the situation that the light transmittance of the substrate is about 92%, the light transmittance of the high-conductivity nanotube film can be up to 88%, and the surface resistance can be as low as 100omega / unit.
Owner:SUZHOU HANANO MATERIALS TECH LTD
Visible-light-responsive BiVO4/TiO2/graphene tri-material composite light catalyst and preparation method thereof
ActiveCN105944711ASolving Dispersion ProblemsSolve the adsorption problemHeterogenous catalyst chemical elementsCatalyst activation/preparationAlcoholOxide composite
The present invention discloses a visible-light-responsive BiVO4 / TiO2 / graphene tri-material composite light catalyst and a preparation method thereof. The preparation method comprises the steps of (1) preparing a suspension system A containing BiVO4 nano particles, and a suspension system B containing a TiO2 sol-gel and graphene oxide; (2) proportionally mixing up the suspension system A and the suspension system B, conducting the heating treatment, separating and drying to obtain a BiVO4 / TiO2 / graphene oxide composite material; (3) suspending the BiVO4 / TiO2 / graphene oxide composite material in short-chain alcohol, adding a reducing agent, conducting the hydrothermal reaction and drying to obtain the visible-light-responsive BiVO4 / TiO2 / graphene tri-material composite light catalyst. The preparation method is simple and easy to operate, and low in cost. Based on the preparation method, the structure and the properties of the composite light catalyst can be regulated and controlled through simply changing the conditions of reactions and heat treatments.
Owner:ZHEJIANG GONGSHANG UNIVERSITY
Whole-element composite fertilizer and preparation method thereof
InactiveCN107324955AStructural solutionStructural regulationSuperphosphatesAlkali orthophosphate fertiliserTriple superphosphateNutrient absorption
The invention relates to the field of composite fertilizers, and in particular to a whole-element composite fertilizer and a preparation method thereof. The whole-element composite fertilizer consists of the following raw materials in parts by weight: urea, triple superphosphate, potassium sulfate, monoammonium phosphate, potassium chloride, ammonium molybdate, boric acid, polypeptide alkali chelate zinc, citrate chelate copper, long-lasting additives, illite powder, attapulgite powder and humic acid ammonium. The preparation method comprises the following steps: preparing pretreated raw materials, mixing and stirring, crushing cakes, pelletizing by using a pelletizer, drying granules, cooling the granules, screening, coating finished granules so as to obtain a finished product, and the like. The invention provides the whole-element composite fertilizer which is capable of effectively replenishing organic matters and various medium-trace elements which are urgently required by soil, improving soil structures, improving permeability, and promoting nutrient absorption of crops, and the invention further provides the reasonable preparation method for the whole-element composite fertilizer.
Owner:河南五吉元肥业有限公司
Method for manufacturing steel thin-wall welding equal-strength components with aluminum or aluminum alloy coatings
ActiveCN111230301APromote homogenizationImprove hardenabilityArc welding apparatusWelding/cutting media/materialsHot stampingMetal alloy
Owner:BAOSHAN IRON & STEEL CO LTD
Biological water flushing fertilizer and preparation method thereof
The invention provides a biological water flushing fertilizer. The biological water flushing fertilizer is prepared by mixing a microorganism strain and an organic fertilizer, wherein the microorganism strain is obtained by carrying out strain liquid fermentation on bacillus subtilis, brevibacillus laterosporu and bacillus mucilaginosus; the biological water flushing fertilizer is composed of the following components in percentage by mass: 10%-20% of the microorganism strain, 20%-30% of humic acid, 30%-60% of calcium nitrate or phosphorus nitrate, 5%-10% of boric acid, 5%-12% of magnesium sulfate, 5%-8% of ferrous sulfate, 1.5%-5% of organic matters, 2%-6% of sulfur powder, 0.5%-1.0% of bentonite and 1%-5% of an inductive agent. The preparation method comprises the following steps: liquid fermentation of the strain, adsorption of fermented strain liquid, and preparation of the biological water flushing fertilizer. According to the biological water flushing fertilizer, the nutritional value of fertilizer raw materials is obviously improved and the fertilizer effect is rapidly improved; the fertilizer utilization efficiency effect and the effect of preventing diseases and increasing the output are improved. Meanwhile, the soil physical and chemical properties are also improved; the hardening is eliminated, the soil is loosened, the pH value of the soil is adjusted and the soil structure is improved.
Owner:范红玉
Method for remedying polluted soil through multi-pond-alga water circulation irrigation system
ActiveCN107971334ASolve the problem of repairing high water consumptionImprove fertilityContaminated soil reclamationSoil-working methodsAutomatic controlAdditive ingredient
The invention provides a method for remedying soil heavy metal pollution, improving saline and alkaline land and recycling microalgae for resource utilization through a multi-pond-alga water circulation irrigation system, and belongs to the field of soil remediation and resource utilization. Through the interaction of man-made ponds, microalgae and soil, a pond-microalga combined remediation system is adopted as the core, the soil is prepared and domesticated to remedy the microalgae, the multiple ponds are used for collecting rainwater, the microalgae are cultivated and subjected to expandingpropagation, and the microalgae are sprayed to the field; through circulation irrigation, multi-time spraying and alga water recycling, heavy metal in the polluted soil is taken away, the salinity ofthe soil is reduced, the nutritional ingredients of the soil are improved, and the soil fertility is restored; the microalgae are harvested through the method of pond enrichment and flocculation andaeration, the alga charcoal preparation process is utilized through combination, and resource utilization is achieved; and the system achieves automatic control through a sensor, a PC and a control component. The remediation method comprises a heavy metal / saline and alkaline land remediation microalga cultivation system, a water collection system, an intelligent spray irrigation unit, a microalgarecycling system and a microalga resource utilization system.
Owner:江苏氿官资源环境研究院有限公司
Novel method for extracting seaweed intermediate by enzyme process
ActiveCN104529570AEfficient decompositionQuick breakdownOrganic fertilisersHas active ingredientAlgal polysaccharides
The invention relates to a novel method for extracting a seaweed intermediate by an enzyme process, which comprises the following steps: sufficiently cleaning and immersing dry Laminaria digitata, adding into an acidic solution, and stirring uniformly to obtain a mixture A; dissolving a composite acidic enzyme in water, and adding into the mixture A to perform primary stirring extraction, thereby obtaining a mixture B; dissolving an inorganic alkaline compound and a composite alkaline enzyme in water, and adding into the mixture B to carry out secondary stirring extraction, thereby obtaining the mixture C; and dissolving a preserving agent in water, adding into the mixture C, and stirring uniformly to obtain the seaweed intermediate. The method for preparing the seaweed intermediate is efficient, quick, mild, comprehensive, safe and harmless. Compared with the traditional acid-alkali extraction technique, the extraction efficiency is enhanced by 50% above, the algal polysaccharides content is enhanced by 50-100%, the alginic acid content is 3.5-4.0, the effect of the seaweed intermediate product is obviously enhanced, and all the effective components in the seaweeds are reserved in the product, thereby implementing complete-effect addition in deed.
Owner:山东筱萤生物科技有限公司
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