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Molybdenum-containing semi-conductor photocatalysis material responding to visible light, preparation method and application thereof
InactiveCN101559371AStrong absorption capacityEasy to prepareWater/sewage treatment by irradiationWater contaminantsSolar lightPhotochemistry
The invention relates to a molybdenum-containing semi-conductor photocatalysis material responding to visible light, wherein a molecular formula of the material is M2M1FeMoO6. In the formula, M1 is equal to Li, Na, K, Rb or Cs; and M2 is equal to Be, Mg, Ca, Sr or Ba. A preparation method for the material comprises the following steps that: an M1-containing compound, an M2-containing compound, an Fe-containing compound and an Mo-containing compound are placed into a mortar according to the mol ratio that the M1 to Fe to the M2 to Mo is 1: 1: 1: 1, and are ground and mixed evenly; and the mixture is subjected to presintering treatment the temperature is increased to be between 800 and 1,200 DEG C, and the mixture is at a constant temperature for 1 to 160 hours to obtain the molybdenum-containing semi-conductor photocatalysis material responding to the visible light. The material has low energy band gap, has good absorption under the irradiation of the visible light, and can be used for performing full spectrum absorption on solar light, or is used for removing harmful substances in the air and sterilizing under the irradiation of the visible light, or is used as a photoelectric conversion material, or is used for producing hydrogen and oxygen by performing photocatalytic analysis on water, or is used for removing organic substances which are harmful to people in sewage by the degradation. The material has the advantages of low synthesis cost, and simple and easy method.
Owner:WUHAN UNIV OF TECH
Aluminum hydroxide/magnesium-based hydrotalcite multiphase-based material and preparation method for crystal whiskers thereof
ActiveCN101880912AIncreased riskReduce complexityPolycrystalline material growthFrom normal temperature solutionsAluminum IonAluminium hydroxide
The invention discloses an aluminum hydroxide / magnesium-based hydrotalcite multiphase-based material and a preparation method for crystal whiskers thereof. The aluminum hydroxide / magnesium-based hydrotalcite multiphase-based material comprises magnesium ion solution prepared by mixing magnesium sulfate and magnesium nitrate in a molar ratio of 1:1, aluminum ion solution prepared by mixing aluminum chloride hexahydrate and sodium metaaluminate in a molar ratio of 1:1, sodium hydroxide and sodium carbonate. The preparation method comprises the following steps of: dissolving the magnesium sulfate and the magnesium nitrate into deionized water, dissolving the aluminum chloride hexahydrate and the sodium metaaluminate into the deionized water, and mixing to prepare aqueous solution of magnesium ions and aqueous solution of aluminum ions respectively; adding the sodium carbonate into the aqueous solution of magnesium ions and the aqueous solution of aluminum ions to obtain mixed solution; and adding sodium hydroxide solution into the mixed solution to obtain suspension of aluminum hydroxide / magnesium-based hydrotalcite, and precipitating, washing and aging the suspension to obtain white crystal whiskers of the aluminum hydroxide / magnesium-based hydrotalcite multiphase-based material. The preparation method has the characteristics of simple and reliable preparation process, no pollution, wide sources of raw materials and low preparation cost.
Owner:PLA SECOND ARTILLERY ENGINEERING UNIVERSITY +1
Liquid lubricating antifriction repairing agent for wheel/rail, preparing method and application
ActiveCN102643707AIn-situ friction reduction repairedGreat tractionRail lubricationRail wetting/lubricationEngineeringLubrication
A liquid lubricating antifriction repairing agent for a wheel / rail having the effects of lubrication, friction prevention and in-situ repair comprises 50-60 parts of resin, 40-50 parts of curing agent, 5-10 parts of grease, 6-15 parts of sub-nanometer scale silicate powder, 4-10 parts of lubricant and 0.05-0.2 part of coupling agent. A method for preparing the liquid lubricating antifriction repairing agent for the wheel / rail is further provided, and the method comprises the following steps of: (1) preparing the resin, the curing agent, the grease, the sub-nanometer scale silicate powder, the lubricant and the coupling agent in accordance with proportions according to claim 1; (2) covering the sub-nanometer scale silicate powder with the coupling agent at a covering temperature ranging from 80 to 90 DEG C; (3) mixing the curing agent with the grease; (4) mixing the substance obtained in the step (2) with the mixture obtained in the step (3); (5) mixing the lubricant with the mixture; (6) mixing the resin with the mixture, wherein the time of mixing the resin is controlled within 15-20 minutes; and (7) pouring the mixture in a die for curing and formation. The repairing agent can be coated on the rim of the wheel through a filler.
Owner:北京天捷优越科技有限公司
Anti-freeze and self-repairing conductive nano-composite hydrogel fiber and preparation method thereof
ActiveCN110938894AImprove mechanical propertiesImprove conductivityElectroconductive/antistatic filament manufactureArtificial thread manufacturing machinesFiberPolymer science
The invention relates to an anti-freeze and self-repairing conductive nano-composite hydrogel fiber and a preparation method thereof. The fiber is obtained by performing synchronous extrusion-polymerization-stretching on a primary hydrogel, which has not been completely reacted, in an aniline monomer bath through a synchronous polymerization-stretching method. The conductive nano-composite hydrogel fiber with anti-freeze and self-repairing performances prepared by the invention is extensive in application range, low in preparation cost, and convenient for industrial production, and an effective new thought is provided for the designing or preparation of other conductive fiber or fabric.
Owner:DONGHUA UNIV
Universal preparation method for synthesizing carbon-coated nickel metal compound with various morphologies
InactiveCN112010360AWell stockedEasy to operateCell electrodesSecondary cellsMetal-organic frameworkIon exchange
The invention relates to a universal preparation method for synthesizing a carbon-coated nickel metal compound with various morphologies as a sodium ion battery negative electrode material by utilizing a metal organic framework design. The method comprises the following steps: dissolving an organic ligand, a nickel source and a surface dispersant into a mixed solvent according to a certain ratio,and controlling hydrothermal reaction time to generate nickel-containing metal organic frameworks with different morphologies (solid spheres, core-shell spheres and hollow spheres); the carbon-coatednickel-containing compounds (nickel oxide, nickel phosphide, nickel sulfide, nickel selenide and nickel telluride) with the shape similar to that of a template are synthesized by taking the frameworksas the template and adjusting an anionic ligand and utilizing an ion exchange strategy. The preparation method has the advantages that the morphology is adjustable; the components are rich; conditions are easy to control; the operation is simple; the conversion efficiency is high; the synthesis method has universality and can be expanded to synthesis of other types of carbon-coated metal compounds; and the product has high specific capacity and good rate capability.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Heavy metal ion adsorption and detection type composite hydrogel fiber and preparation method thereof
ActiveCN106552595AImprove adsorption capacityOutstanding fluorescence quenchingOther chemical processesWater contaminantsFiberMolecular materials
The invention discloses a preparation method of a heavy metal ion adsorption and detection type composite hydrogel fiber and belongs to the field of high molecular materials. The heavy metal ion adsorption and detection type composite hydrogel fiber is characterized in that heavy metal ions in water can be effectively detected qualitatively and can also be adsorbed. The adsorption and removal rate of the low-concentration heavy metal ions like nickel, chromium, lead and mercury in wastewater can reach 90% or above. The product preparation does not need special equipment, industrial implementation is easy, and the product cost is not high. A composite hydrogel fiber product is applied conveniently, can be bundled for use, and can also be woven into fabric or assembled into a separation assembly. After the product adsorbs the heavy metal ions, the adsorbed heavy metal ions can be efficiently recycled by being washed with cleaning fluid, 90% or more of the adsorbed heavy metal ions can be washed out at a time, and the fiber can be reused.
Owner:华检计量检测(天津)有限公司
Dimolybdenum carbide/titanium dioxide composite photocatalyst, and preparation method and application thereof
ActiveCN109174145ALarge specific surface areaImprove stabilityHydrocarbon from carbon oxidesEnergy inputPhotocatalytic reactionAniline
The invention discloses a dimolybdenum carbide / titanium dioxide composite photocatalyst, and a preparation method and an application thereof, and belongs to the technical fields of material preparation and environmental treatment. The preparation method comprises the following steps: preparing Mo2C powder from a molybdenum source and aniline, dissolving the Mo2C powder and titanium(IV) bis(ammonium lactato)dihydroxide in deionized water to prepare a precursor solution, and carrying out a hydrothermal reaction to obtain the Mo2C / TiO2 composite photocatalyst. The composite material prepared by compounding the high-photocatalytic activity nontoxic, harmless and stable TiO2 with Mo2C having a good electrocatalytic hydrogen evolution performance has a large specific surface area, and can increase the contact area and the adsorption amount of CO2; the composite photocatalyst has many surface active centers, so the composite photocatalyst can provide a large and effective active reaction area, and has an excellent photocatalytic CO2 reduction performance; the preparation method has the advantages of simple preparation process, low cost, and easy availability and abundant reserves of raw materials; and the photocatalytic reaction can be carried out only through using solar energy without other energies, and reduction products comprise methane and carbon monoxide and can be used as a fuel, so energy saving and environmental protection are achieved.
Owner:SHAANXI UNIV OF SCI & TECH
Method for preparing metal hetero atom doped two-dimensional SnS2 nanosheet array vertically grown on carbon cloth as sodium ion battery anode material
InactiveCN110190266AAbundant raw material reservesLow priceMaterial nanotechnologyTin compoundsIonChemistry
The invention relates to a method for preparing a metal hetero atom doped two-dimensional SnS2 nanosheet array vertically grown on a carbon cloth as a sodium ion battery anode material. The method comprises the steps of: uniformly mixing metal salt, stannide and sulfide into a stable solution according to a certain molar ratio; transferring the solution to a reaction vessel in which the carbon cloth is placed; reacting for a certain period of time at a certain temperature; repeatedly washing the carbon cloth with distilled water and absolute ethyl alcohol a plurality of times; and drying the carbon cloth to obtain a composite material in which the metal hetero atom doped SnS2 nanosheet is grown on the carbon cloth. The method has the advantages that the conditions are easy to control, theprocess is simple and feasible, no pollution is caused, and the product has excellent specific capacity, rate performance and rapid charge / discharge performance.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Reducing agents for smelting chemical grade metallic silicon
The invention relates the reducing agent of smelting chemical grade metallic silicon, comprising ganister, oil coke and bituminous coal. The mass ratio of ganister and fixed charcoal content is between 2.7:1.3 and 2.9:1.1. The invention has the advantages of reducing the cost of metallic silicon and good economic benefit and social benefit.
Owner:上海广济硅材料有限公司 +1
One-button intelligent library management system
InactiveCN106288599AEasy to keep freshEasy to storeSpace heating and ventilation safety systemsLighting and heating apparatusOxygenControlled atmosphere
The invention discloses a one-button intelligent library management system. The one-button intelligent library management system comprises a library body, a sensor used for detecting the oxygen, temperature and humidity in the library body, a programmable logic controller (PLC), a liquid nitrogen device, a control system and a touch screen, wherein a balance valve is arranged on the top of the library body; the PLC is connected with the liquid nitrogen device, a detection device, the control system and the touch screen; the touch screen carries out data exchange with the PLC as a man-machine exchange interface; the liquid nitrogen device comprises a liquid nitrogen tank and a liquid nitrogen pipeline; and the control system comprises a temperature control device, a controlled atmosphere control device and a humidity control device. The one-button intelligent library management system is simple in structure, intelligent in operation and capable of storing and preserving food or vegetables in a diversified manner, and has the functions of detecting and adjusting the oxygen concentration, temperature and humidity.
Owner:广州鲜之源生态冷链技术有限公司
Heavy-metal-ion adsorption type anti-pollution hybrid flat-sheet separation membrane and preparation method thereof
InactiveCN105457505ALow costEase of industrial implementationSemi-permeable membranesOther chemical processesMicroorganismCross linker
The invention discloses a polyvinylidene fluoride / attapulgite hybrid separation membrane with good adsorption function to heavy metal ions and anti-pollution performance to protein and microorganisms in a water body, and a preparation method thereof, belonging to the technical field of functional polymeric membranes. The heavy-metal-ion adsorption type anti-pollution hybrid flat-sheet separation membrane is prepared by constructing a zwitter-ion MPDSAH gel layer on the surface of a membrane through grafting and crosslinking with a PVDF / attapulgite hybrid membrane as a base membrane, wherein the membrane is best in performances when a mass ratio of PVDF and modified attapulgite in the base membrane is 1: 0.3, the mass of the base membrane is 1.08945 g, the usage amount of a surface grafting monomer MPDSAH is 7.0 g, the content of a crosslinking agent MBAA accounts for 0.6% of the total content of the monomer, the usage amount of an initiator is 0.078 g, membrane alkali treatment time is 20 min, and a reaction temperature is 60 DEG C. The preparation method for the heavy-metal-ion adsorption type anti-pollution hybrid flat-sheet separation membrane provided by the invention has the advantages of no need of special equipment, easy industrial implementation, simple process and low membrane cost.
Owner:TIANJIN CNCLEAR ENVIRONMENTAL PROTECTION SCI & TECH CO LTD
Additive for low-volatile coal and preparation method thereof
InactiveCN101899352AImprove combustion efficiencyEasy to catch fireSolid fuelsCombustionPotassium chlorate
The invention belongs to the field of resources and environmental technologies, in particular to an additive for low-volatile coal and a preparation method thereof. The additive for the low-volatile coal is characterized by comprising the following raw materials by weight percentage: 86-92% of oil shale, 3-4% of sodium chloride, 2-5% of potassium permanganate, 1-2% of sodium nitrate and 2-3% of potassium chlorate. The invention can improve the combustion efficiency of the low-volatile coal and have simple process and low cost.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Concave-convex rod enhanced aluminum oxide nanofiber membrane and preparation method thereof
InactiveCN111621921AImprove thermal stabilityFlexible enoughInorganic material artificial filamentsHeating/cooling textile fabricsAl powderSpinning
The invention relates to a concave-convex rod enhanced aluminum oxide nanofiber membrane and a preparation method thereof. Components of the nanofiber membrane comprise concave-convex rods and aluminum oxide with the mass ratio being (1-30):100. The preparation method comprises the steps that inorganic aluminum salt, aluminum isopropoxide and aluminum powder are firstly used for being heated and flowing back under certain conditions of the pH value and temperature to prepare alumina sol, and then the alumina sol is added into the screened concave-convex rods and spinning auxiliaries of a certain proportion to obtain a composite spinning solution; high-pressure electrostatic spinning equipment is used for spinning, and a concave-convex rod enhanced aluminum oxide precursor nanofiber membrane is obtained; and finally through drying and high-temperature heat treatment, the concave-convex rod enhanced aluminum oxide nanofiber membrane is obtained. Compared with existing aluminum oxide nanofiber membranes, the prepared nanofiber membrane is lower in cost and high in productivity and shows more excellent flexibility and higher strength.
Owner:明光市铭垚凹凸棒产业科技有限公司 +1
Preparation method of bimetallic MOF derived oxygen evolution electrocatalyst
InactiveCN110227524AWell stockedImprove performanceCatalyst activation/preparationElectrodesNickel saltIron salts
Belonging to the technical field of new energy materials, the invention in particular relates to a preparation method of a bimetallic MOF derived oxygen evolution electrocatalyst. The preparation method of the bimetallic MOF derived oxygen evolution electrocatalyst includes: subjecting an iron salt solution, a nickel salt solution, L-glutamic acid and an organic ligand to mixing reaction, and drying and carbonizing the obtained product, thus obtaining the bimetallic MOF derived oxygen evolution electrocatalyst. The preparation method of the bimetallic MOF derived oxygen evolution electrocatalyst provided by the invention solves the technical problem that the existing transition metal OER catalyst cannot meet industrial application due to poor stability and electrical conductivity.
Owner:GUANGDONG UNIV OF TECH
Method for preparing graphene by using halloysite nanotubes having curly layered structure
The invention relates to a method for preparing graphene by using halloysite nanotubes having curly layered structure, and belongs to the technical field of preparation of a chemical material. The method comprises the following steps: taking water as a solvent; mixing low molecular weight organic matters with powdery halloysite nanotubes having the curly layered structure to obtain halloysite nanotubes inserted with low molecular weight organic matters among layers; replacing the low molecular weight organic matters by using polymer monomers; carrying out polymerization to obtain a compound of polymer and the halloysite nanotubes; calcining the compound; and washing the compound by using a mixed solution of hydrofluoric acid and hydrochloric acid to obtain graphene powder. The graphene with a structure including 2-4 layers can be prepared. The preparation method is simple, is easy to operate and low in preparation cost, and cannot pollute the environment.
Owner:YANGZHOU UNIV
Electrode material and preparation method and application thereof
ActiveCN106654200AGood performance of lithium/sodium intercalationImprove stabilityCell electrodesSecondary cellsBenzeneSulfonate
The invention discloses an organic electrode material and a preparation method and application thereof. The organic electrode material comprises any one or a mixture of at least two of a hydroxy-benzenesulfonic acid, hydroxybenzene sulfonate, a benzenesulfonic acid, benzene sulfonate, a benzene disulfonic acid or benzene disulfonate. The invention further provides an organic electrode and a preparation method thereof. The organic electrode comprises the following raw material components: an active substance, a conductive additive and a binder. The organic electrode material is available in raw material, simple in synthesis method and low in cost; the lithium-ion battery and a sodium-ion battery prepared from the organic electrode material have excellent electrochemical properties, high specific capacity and good stability and rate capability; according to the obtained lithium battery, the initial discharge capacity can reach 2272mAh g<-1>, the two-circle coulomb efficiency can reach 97% and the coulomb efficiency of circulating 100 cycles can reach 100%; and the organic electrode material has a wide application prospect in the lithium-ion / sodium-ion battery.
Owner:SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
Technology for extracting shikimic acid from fresh illicium verum
InactiveCN107903170AHigh yieldReduce security risksCarboxylic compound separation/purificationIllicium verumShikimic acid
The invention discloses a technology for extracting shikimic acid from fresh illicium verum. According to the technology, the fresh illicium verum serving as a raw material can be directly used without drying, energy consumption is low, the yield of shikimic acid is high and the safety hidden trouble is low. Ethanol is employed for extraction after enzymolysis treatment, and then a prepared magnetic molecularly imprinted polymer is used to adsorb the shikimic acid in a crude extract, so that separation of the shikimic acid can be realized simply and efficiently.
Owner:浙江工业大学上虞研究院有限公司
Mixed water-based lithium battery electrolyte solution and preparation method thereof
The invention relates to the field of lithium batteries, and discloses a mixed water-based lithium battery electrolyte solution and a preparation method thereof. The preparation method includes the following preparation processes: (1) adding hydroxyl flexible segment modified nano-silica, lithium carboxymethyl cellulose and a solvent into a reaction vessel, and carrying out a stirring reaction toprepare lithium carboxymethyl cellulose compounded hydroxyl flexible segment modified nano-silica; (2) adding lithium sulfate hydrate and zinc sulfate heptahydrate into deionized water, stirring and adjusting the pH value to obtain a mixed solution; and (3) adding the lithium carboxymethyl cellulose compounded hydroxyl flexible segment modified nano-silica into the mixed solution, and thus obtaining the mixed water-based lithium battery electrolyte solution. When the prepared mixed water-based electrolyte solution is used in a lithium battery, higher specific capacity, low self-discharge rate,low floating charge current density, high rate performance and better cycling ability are obtained; and a zinc deposited layer on a negative electrode can be more gentle and smooth by using the silicon dioxide-doped electrolyte solution, the formation of dendritic crystals is effectively avoided, and the possibility of battery short circuit is greatly reduced.
Owner:CHENDU NEW KELI CHEM SCI CO LTD
Method for manufacturing recycled paper by adding loofah sponge fiber
ActiveCN107164986AWell stockedShort regeneration periodPaper recyclingPaper/cardboardFiberEconomic benefits
Provided is a method for manufacturing recycled paper by adding loofah sponge fiber. The method comprises the steps that loofah sponge undergoes dry-smashing treatment; degumming treatment is performed; paper products are recovered, and coarse cutting, shake-screening, centrifugal classification and fine cutting treatment is performed; classified recovered paper chippings are soaked, stirred, filtered and stirred to produce pulp; degummed loofah sponge fiber chippings and the recovered paper pulp material are mixed and stirred according to the ratio of 1:9 to 1:1; a dye, a dye-fixing agent and starch are added or visible loofah sponge fiber chippings are supplemented for mixing and stirring treatment; pulp taking for papermaking, press mold water absorption, hot-air constant-temperature drying, paper taking through scrapers and press-polishing and paper rolling are performed to obtain a dyed loofah sponge recycled paper finished product. The fiber content of the recycled paper is supplemented by adding the loofah sponge fiber, and the adsorption and coloring properties of the recycled paper can be improved while the paper is flexible. In addition, in the mode of classified pulping of the recycled paper, the high-quality recycled paper output rate can be greatly improved, added economic benefits can be brought to enterprises by combining with natural texture of the loofah sponge, and meanwhile the method has the special significance on environmental protection.
Owner:湛江市原佳彩印包装材料有限公司
Production method for achieving phosphorus immobilization capacity amplification of clay mineral
ActiveCN110683596AEnvironmental reserveWell stockedWater contaminantsWater/sewage treatmentClay mineralsEutrophication
The invention discloses a production method for achieving phosphorus immobilization capacity amplification of a clay mineral. The production method comprises the following steps: uniformly mixing thepowder of a clay mineral with a mixed solution of lanthanum chloride and polyaluminium chloride, and performing extrusion so as to obtain particles, wherein the solid-liquid mass ratio of the clay mineral to the mixed solution is greater than or equal to 6:1. The method has the characteristics of being simple and low in cost, the prepared phosphorus locking (immobilization) material is large in phosphorus immobilization capacity, simple in production process, free of secondary pollution and free of residual waste liquid. The prepared product can be used for controlling release of phosphorus inindustrial sewage, eutrophication water and polluted sediment, and the eutrophication degree of water can be effectively controlled and alleviated.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY
Vermicular Ni/Ni<x>Fe<1-x>O<y> hydrogen evolution catalyst and preparation method thereof
ActiveCN109985629AGood hydrogen evolution activityImprove stabilityMetal/metal-oxides/metal-hydroxide catalystsElectrodesNickel saltElectrolyte
The invention belongs to the field of electrocatalytic materials, and discloses a vermicular Ni / Ni<x>Fe<1-x>O<y> hydrogen evolution catalyst and a preparation method thereof. The preparation method comprises the steps of: placing a pretreated pure copper substrate in a nickel salt electrolyte, and depositing nickel nanosheets on the substrate through electrodeposition; preparing an alkaline aqueous solution containing sodium hydroxide, ammonium fluoride and CTAB; and then dropwise adding a nickel acetate solution and an ammonium ferrous sulfate solution until precipitates are generated in thesolution to obtain a nickel ion and ferrous ion saturated alkali liquor, then putting the substrate subjected to electrodeposition into the nickel ion and ferrous ion saturated alkali liquor for soaking treatment, taking out the substrate after the treatment is completed, and conducting cleaning and drying to obtain the vermicular Ni / Ni<x>Fe<1-x>O<y> hydrogen evolution catalyst. The preparation method is simple, oxide dispersion distribution is achieved, a metal / oxide interface is added, iron modification is beneficial to improvement of stability, and good application prospects are achieved inthe field of electrocatalysis.
Owner:SOUTH CHINA UNIV OF TECH
Process for producing bricks using sea deposited silt
InactiveCN1757611AWell stockedHave the ability to regenerateCeramic shaping apparatusClaywaresBrickPolymer science
Owner:李月健
Method and system for robot to imitate and learn speaking
ActiveCN110405791AWell stockedImprove service qualityProgramme-controlled manipulatorVirtual robotSpeech sound
The invention discloses a method and a system for a robot to imitate and learn speaking and belongs to the technical field of intelligent robot. The method and the system comprises the following stepsthat the robot terminal converts questioning speech into questioning text and sends the questioning text back to the cloud server; the cloud server matches the questioning text with the question in the question bank; the cloud server sends the unmatched questioning text to a designated human customer service terminal through the robot terminal and the customer service staff will answer the questioning text in the form of text after receiving the questioning text; after receiving the answer text, the cloud server converts the answering text into the answering speech and plays the answering speech based on a virtual robot and a composite video on the virtual robot; and the questioning text, the questioning speech and the composite video are into the question bank. The method and the systemfor the robot to imitate and learn speaking not only enables the robot to answer the customer's questions in time, but also enables the robot to learn new questions that a customer didn't question before and answers that cannot be answered by the robot.
Owner:江苏遨信科技有限公司
Preparation method for crop nutrient solution containing red clover extract
InactiveCN107266164ASimple production processMaintain biological activityAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersFiltrationUltrafiltration
The invention relates to a preparation and an application of red clover extract. The method comprises the following steps: 1) cleaning the whole red clover and then adding a defined amount of milk, honey and yeast powder and fermenting for 5-7 days; 2) adding a defined amount of 50% ethanol solution, controlling the temperature at 45-55 DEG C, digesting for 2-3h and filtering, thereby acquiring a clear liquid; 3) performing ultra-filtration treatment on the clear liquid and collecting dialysate; 4) adding ethyl alcohol till the concentration of ethyl alcohol reaches up to 75%, cooling, standing and filtering, thereby acquiring a filtrate; 5) performing nano-filtration treatment on the filtrate, thereby acquiring a concentrated solution; and 6) compounding a defined amount of amino acid, monopotassium phosphate and saccharose and filling, thereby acquiring a crop nutrient solution. The foliage spray can obviously promote the fruit quality, especially, can obviously promote the appearance and quality of fruits and has a significant application value.
Owner:YANTAI GOODLY BIOTECH
Biomass gel-based dry water powder extinguishing agent and preparation method thereof
ActiveCN112206457AImprove pressure resistanceImprove water retentionFire extinguisherWater basedEnvironmental engineering
The invention relates to a biomass gel-based dry water powder extinguishing agent and a preparation method thereof. The invention relates to a biomass gel-based dry water powder extinguishing agent, which comprises the following components in percentage by mass: 5-10% of hydrophobic solid particles, 0.1-1.0% of water-phase matrix, 0.5-2.0% of gelatinizing agent and the balance of water. The fire extinguishing agent is high in stability, excellent in fire extinguishing efficiency and environmentally friendly. Compared with a common dry water fire extinguishing agent, the fire extinguishing agent has the advantages that the gelatinizing agent and the water-phase matrix are added into a water base, an internal solution is converted into gel through reaction between the gelatinizing agent andthe water-phase matrix, the pressure resistance and the water-retaining property of the fire extinguishing agent are greatly improved, and the fire extinguishing agent has wide application prospects.
Owner:WUHAN UNIV OF TECH
Sponge protection
InactiveCN1674838ALarge heat capacityAvoid feverDental toolsTooth cleaningBarrel ShapedMechanical engineering
A prophy chip comprising a hollow cup-shaped core of canopy (semispherical), cylindrical, cupped, conical, inverted conical, or disk profile, covered with a hydrophilic grindstone sponge containing a polishing agent, the hydrophilic grindstone sponge side edge either being press fixed by being folded into the interior of the core by a shank-equipped latch plate or contoured for gripping, a shaft fixed to avoid vibration around the latch plate bottom surface rotation axis during rotation, thereby providing a cleaning, polishing, and burnishing prophy chip which maintains polishing efficiency without involving transverse oscillations in polishing barrel-shaped tooth clearances or adjacent surfaces and without requiring a polishing gel or paste due to improved dissipation of heat generated by friction.
Owner:高桥淳
Welding rod for welding 1Ni9 steel and preparation method thereof
InactiveCN103433649AHigh priceSolve process problemsWelding/cutting media/materialsSoldering mediaMisch metalAdhesive
The invention discloses a welding rod for welding 1Ni9 steel. The welding rod comprises a coat and a core, wherein the coat is prepared from the following components in percentage by mass: 34-48 percent of carbonate, 17-24 percent of fluorite, 2-6 percent of zircon sand, 1-4 percent of ferrosilicon, 5-12 percent of ferrotitanium, 3-5 percent of mid-carbon ferromanganese, 2-5 percent of titanium pigment, 2-5 percent of rutile, 2-6 percent of mica, 0.7-1 percent of alkali, 1-3 percent of misch metal, 2-6 percent of manganese metal and 1-3 percent of ferroniobium, wherein the sum of the mass percentages of all the components is 100 percent. The preparation method comprises the following steps: placing each component material and an adhesive in a mixer to mix and briquetting into briquettes in a briquetting machine; coating the briquettes on the alloy ERNiCrMo-3 core in a welding rod extrusion press; placing in a box type furnace to gradually heat and dry to prepare the welding rod. According to the welding rod and the preparation method thereof, the problems of high price of imports from abroad and poorer technological performance of a conventional welding rod for welding the 1Ni9 steel are solved, the raw materials are easy to get, and the performance of weldjoints is good.
Owner:XIAN UNIV OF TECH
Method for improving grafting coalescence rate of torreya grandis
InactiveCN104521580AGrow fastImprove grafting rateGraftingHorticulture methodsRootstockHormones levels
The invention discloses a method for improving the grafting coalescence rate of torreya grandis. The method includes the steps that cut face inversed grafting is adopted, and then high-position grafting is further matched to enable the torreya grandis to be grafted on tree stock (a main treetop is cut off at the position 50-60 cm away from the ground and two to three circles of side branches are reserved below the grafting position); a coalescence agent and the like are matched to be sprayed continuously; the nutrient and hormone level of the main treetop and the side branches of a grafted plant is changed, and the grafted branches are promoted to grow in the forward direction; the grafting coalescence rate of the torreya grandis is improved, and the torreya grandis of a high-yield tree form is formed. On the premise that the cost is not increased, the purpose that the coalescence rate of nursery stock is more than 90% is achieved, the grafted plant can grow fast, the tree form is good, the method is put into production in advance, and the yield of the torreya grandis is greatly improved.
Owner:方乐金
Solid lubricating, friction-reducing and repairing agent of wheel rail as well as preparation method and application thereof
ActiveCN102634254AIn-situ friction reduction repairedGreat tractionConjugated diene hydrocarbon coatingsNatural rubber coatingsCooling water temperatureFriction reducing
The invention discloses a solid lubricating, friction-reducing and repairing agent with efficacies of lubricating, reducing friction and in-situ repairing. The solid lubricating, friction-reducing and repairing agent comprises 100 parts of rubber, 3-4 parts of vulcanized rubber composition, 5-10 parts of sub-nanometer silicate powder, 2.5-10 parts of solid lubricating agent and 0.05-0.2 part of coupling agent. A preparation method comprises the steps of: (1) preparing materials according to the ratio in claim 1; (2) wrapping the sub-nanometer silicate powder which is dried in vacuum by the coupling agent, wherein the temperature is 70-80 DEG C; (3) milling the rubber in an open mill; (4) mixing the vulcanized rubber composition in the open mill; (5) putting the powder obtained from the step (2) into the open mill to mix; (6) adding the solid lubricating agent in the rubber open mill and mixing, and (7) controlling the temperature of cooling water in an open mill jacket below 60 DEG C until the materials are uniformly mixed, and cutting into strips of 5-8 mm. The solid friction-reducing agent can be coated on a wheel rail through a dispenser.
Owner:北京天捷优越科技有限公司
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