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35results about How to "Stay porous" patented technology
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Preparation method of titanium dioxide/active carbon composite nanofibrous membrane
InactiveCN102021676AAchieve mass productionImprove bindingWater/sewage treatment by irradiationOther chemical processesSpinningPhosphoric acid
The invention provides a preparation method of a titanium dioxide / active carbon composite nanofibrous membrane, characterized by comprising the following specific steps: dissolving polyacrylonitrile powder in N, N-dimethyl formamide; mixing titanium hydroxide gel with the polyacrylonitrile solution to obtain electrostatic spinning stock solution, and performing electrostatic spinning to get the composite nanofibrous membrane; placing the composite nanofibrous membrane in an electrically heated drying cabinet for being pre-oxidized; soaking the composite nanofibrous membrane in phosphoric acid or potassium hydroxide solution, washing the solution to be neutral by distilled water, and drying the composite nanofibrous membrane in the drying cabinet; and then, under nitrogen protection, heating up to 450-550 DEG C, and cooling to room temperature to get the titanium dioxide / active carbon composite nanofibrous membrane. The preparation method improves combination firmness between fibers and active ingredients of a photocatalyst, and also improves charge capacity of the fibers; the titanium dioxide / active carbon composite nanofibrous membrane is high in photo catalytic activity, good in absorption effect, reproducible and simple in a reproduction method, and can use sunlight, so that operations are easy and operation cost is low.
Owner:DONGHUA UNIV
Preparation method of hollow titanium dioxide microspheres
InactiveCN104326507APromote degradationImprove catalytic performancePhysical/chemical process catalystsTitanium dioxideMicrosphereCrystallinity
The invention discloses a preparation method of hollow titanium dioxide microspheres. The preparation method comprises the following steps: firstly, preparing a silicon dioxide particle prefabricate; then, introducing a titanium dioxide sol to cover the surface of silicon dioxide to form a core-shell structure of silicon dioxide-titanium dioxide; then, removing silicon dioxide core structure by using a sodium hydroxide solution; removing impure structures of the microspheres by using hydrochloric acid; and calcining to finally obtain the hollow titanium dioxide microspheres in stable structures. The hollow titanium dioxide microspheres disclosed by the invention not only have high degree of crystallinity and porosity, but also the electron transport efficiency and the photocatalytic degradation effect on organic pollution are improved. The preparation method is simple in preparation process and low in cost, and the synthesized microspheres are stable in structure.
Owner:HOHAI UNIV
Non-aqueous electrolyte battery
InactiveCN1953268AStay porousImprove securityCell electrodesFinal product manufacturePolyvinylidene difluorideEthylene Homopolymers
In a non-aqueous electrolyte battery including a generating element having a separator bonded with an adhesive layer between a positive electrode plate and a negative electrode plate, the adhesive layer contains a fluorine-based polymer having a mass average molecular weight of from 500,000 to 1,500,000 and a melting point of from 165° C. to 175° C., and an inorganic-solid filler. The fluorine-based polymer is a polyvinylidene fluoride-based polymer such as a polyvinylidene fluoride homopolymer.
Owner:SANYO ELECTRIC CO LTD +1
Method for preparing hydrolysis-regulated nickel cobalt sulfide/carbon cloth porous supercapacitor electrode material
InactiveCN110136980AStay porousPrevent collapseHybrid capacitor electrodesHybrid/EDL manufactureCapacitanceEtching
The invention provides a method for preparing a hydrolysis-regulated nickel cobalt sulfide / carbon cloth porous supercapacitor electrode material. The method comprises the preparation of a cobalt-basedmetal organic frame / carbon cloth composite material, the preparation of a porous nickel-cobalt layered double-metal hydroxide / carbon cloth composite material and the preparation of a porous nickel cobalt sulfide / carbon cloth composite material. According to the invention, in the preparation process of the porous nickel-cobalt layered double-metal hydroxide / carbon cloth composite material, holes are generated through the ion exchange of a cobalt-based metal organic frame material Co-MOFs and a nickel nitrate solution and the etching of Co-MOFs by a Ni2+ hydrolysis effect, the nickel-cobalt layered double-metal hydroxide with a hollow porous structure grown on carbon cloth is synthesized, on the basis of maintaining the shape of a MOFs parent body, a hollow porous morphology structure of abinary metal sulfide with multiple valence states, large specific surface area and high electroactivity based on the carbon cloth is prepared, and the capacitance property, rate performance and electrochemical cycle life of the composite material as an electrode are improved.
Owner:NANYANG INST OF TECH
Denitrifying phosphorus-removing carrier and use
InactiveCN101121115AEasy to makeLow costOther chemical processesAluminium silicatesIndustrial waste waterEngineering
The present invention belongs to the water treatment technical field and particularly relates to the preparation and use of a nitrogen and phosphorus removal carrier. The carrier of the present invention can provide the water environmental protection by the nitrogen and phosphorus removal treatment towards industrial wastewater and living sewage, which contain ammoniacal nitrogen and inorganic phosphorus, and towards pollution source or water in non-point source pollution. The nitrogen and phosphorus removal carrier of the present invention is characterized in that when a dry basis of the finished product is 200kg, and calculating according to weights, the components are as followings: 100kg to 120kg clinoptilolite powder, 90 percent of the exchange capacity over 100 meshes of which is more than 100cmol (plus) / kg; 50kg to 70kg land plaster, 90 percent of which is more than 100 meshes; 10kg industrial salt, the granular size of which is 2cm to 3 cm; 20kg common portland cement (labels of which is from 325 to 525); 2kg sawdust of pine tree; 100kg to 200kg complementary water. The present invention also discloses the preparation method and the application of the carrier.
Owner:HUAZHONG AGRI UNIV
Method for improving enzymolysis saccharification efficiency of lignocellulose
The invention discloses a method for improving the enzymolysis saccharification efficiency of lignocellulose, which comprises the following steps of: (1) crushing a lignocellulose raw material with a water mass of 30-75%, packaging the crushed material in a sealing device, and storing the crushed material; (2) adding the material obtained in the step (1) into a steam explosion reactor, heating the material by using steam, instantaneously releasing pressure so as to obtain a solid-liquid mixture, carrying out e solid-liquid separation on the solid-liquid mixture, carrying out washing and drying on the obtained solid; and (3) adding cellulase and water into the dried matter, adjusting the pH value of the obtained product to be 4.5-5.5, carrying out enzymolysis on the obtained product, and carrying out solid-liquid separation on the obtained product again so as to obtain a liquid rich in glucose and xylose. According to the method disclosed by the invention, the loss of biomass can be reduced, and the flexibility and porosity of a biomass structure can be maintained; the recovery rate of sugar is high, and degradation products are less; and the enzymolysis saccharification rate is significantly increased.
Owner:TIANJIN UNIV
Preparation method and applications of porous composite material with peroxidase activity
InactiveCN105233869AEasy to prepareEasy to implementOrganic-compounds/hydrides/coordination-complexes catalystsWater/sewage treatment by oxidationHigh densityPeroxidase
The invention discloses a preparation method of a porous composite material with peroxidase activity. The preparation method comprises following steps: acid-free hydro-thermal synthesis is adopted to synthesize MIL-100(Fe); MIL-100(Fe) is subjected to calcining so as to obtain the MIL-100(Fe) derived porous composite material which can be used for catalytic degradation of methylene blue. The preparation method of the porous composite material based on MIL-100(Fe) is simple, and is convenient to realize; calcining of MIL-100(Fe) is capable of maintaining original material porosity, generating high density bio simulation active centers, and increasing peroxidase activity of the MIL-100(Fe) derived porous composite material greatly; so that high efficiency catalytic degradation of organic dye methylene blue can be realized with small catalyst amount and at a relatively high temperature.
Owner:TIANJIN POLYTECHNIC UNIV
Preparation method of self-support nitrogen-doped porous graphene for super-capacitor
InactiveCN106006614AQuality improvementStay porousHybrid capacitor electrodesGraphenePorous grapheneStrong acids
The invention discloses a preparation method of self-support nitrogen-doped porous graphene for a super-capacitor, which is characterized by comprising the following steps: 1) dispersing nano nickel powder into a buffer solution of dopamine / Tris-HCl, carrying out ultrasonic oscillation, and then carrying out mechanical stirring at room temperature for reacting and heating; after paste is formed, pressing the paste into a sheet by using a roller press of which the roller diameter is 50cm, so as to obtain a sheet-shaped nitrogen-doped porous graphene precursor; 2) by taking polydopamine in the sheet-shaped nitrogen-doped porous graphene precursor prepared in the step 1) as a solid precursor and taking nickel as a catalyst and a template, carrying out high temperature sintering in an inert gas sintering furnace, and finally, cooling the sintering product to room temperature in the inert gas, so as to obtain a nickel powder coated sheet of a nitrogen-doped graphene product; and 3) putting the nickel powder coated sheet of the nitrogen-doped graphene product, prepared in the step 2), into strong acid for etching off the nano nickel powder template by the acid, and then, cleaning and drying the sheet in ultra-pure water repeatedly, so as to obtain self-support nitrogen-doped porous graphene. The used raw materials are non-toxic and cheap and are easy to obtain, the process is simple, the cost is low, and nitrogen-doped graphene with a high specific surface area and high quality can be prepared.
Owner:FUJIAN XFH NEW ENERGY MATERIALS CO LTD
Conductive polymer wave-absorption sponge and preparation method thereof
The invention discloses a conductive polymer wave-absorption sponge and a preparation method thereof. The conductive polymer wave-absorption sponge is prepared from conductive polymers and polyurethane foamed sponge, wherein the surface of a network framework of the polyurethane foamed sponge is coated with the conductive polymers. According to the conductive polymer wave-absorption sponge and thepreparation method thereof disclosed by the invention, by using the polyurethane foamed sponge as a framework, the conductive polymer wave-absorption sponge is prepared through a gas-phase monomer oxidative polymerization deposition method, so that the properties of flexibility, the porosity and the lightweight of the polyurethane sponge can be maintained, and the electromagnetic property of theconductive polymers is developed, and further, the excellent wide-frequency wave-absorption performance is shown. The preparation method disclosed by the invention has the advantages of simple processand low cost, and is suitable for industrial production.
Owner:南京恒新新材料有限公司
Supported vanadium-substituted polyacid desulfurization catalyst porous nanocrystal and preparation method thereof
InactiveCN103084212AIncrease loading capacityStay porousOrganic-compounds/hydrides/coordination-complexes catalystsMolybdeum compoundsPhosphoric acidCatalytic oxidation
The invention provides a preparation method of a supported vanadium-substituted Keggin type polyacid desulfurization catalyst porous nanocrystal. The catalyst is formed by using a three-dimensional porous main body framework constituted by copper and trimesic acid through a coordination bond to support vanadium-substituted Keggin type molybdatophosphoric acid. Polyacid is orderly arranged in the main body framework in an object form, and the supporting amount is above 54%. The nanocrystal catalyst can be synthesized by a room-temperature solid phase or room-temperature liquid phase method and be stably dispersed in an oil phase. Under mild conditions, molecular oxygen is taken as an oxidant, and the nanocrystal can efficiently realize catalytic oxidation of aromatic sulfides in fuel oil and further realize deep desulfurization. The catalyst can be recovered by centrifugal operation and be reused mainly times after drying treatment. The preparation method of the polyacid nanocrystal desulfurization catalyst, provided by the invention, is simple, can effectively solve the technical difficult problems of immobilization, separation, recovery, reuse and stable dispersion in the oil phase of the polyacid catalyst, and is suitable for industrial production.
Owner:NORTHEAST NORMAL UNIVERSITY
Composite sludge conditioner
PendingCN112174492AImprove dehydration effectMolecular chain stabilitySludge treatmentSludgeActive agent
The invention belongs to the technical field of sludge conditioning and dehydration. The invention provides a composite sludge conditioner. The composite sludge conditioner is prepared from the following raw materials in percentage by weight: 15%-25% of an inorganic polymeric flocculant, 5%-15% of an organic flocculant, 10%-20% of a cationic surfactant, 10%-20% of a regulator and 20%-55% of a sludge conditioning bulking agent. The composite sludge conditioner is high in dehydration efficiency and low in use amount, the addition amount of the composite sludge conditioner is only 10% of the absolute dry weight of sludge, and the water content of the sludge with the water content of 98% can be reduced to 50% or below after filter pressing dehydration.
Owner:神美科技有限公司
A kind of preparation method of hollow titanium dioxide microsphere
InactiveCN104326507BPromote degradationImprove catalytic performancePhysical/chemical process catalystsTitanium dioxideMicrosphereCrystallinity
Owner:HOHAI UNIV
Medical stone porous ceramic and preparation method thereof
InactiveCN106348780AImprove qualified product rateImprove adsorption capacityCeramicwareRare-earth elementPlasticizer
The invention relates to a ceramic material and discloses a medical stone porous ceramic and a preparation method thereof. The medical stone porous ceramic comprises the following materials according to weight percentage: 40-50% of alkali feldspar, 30-40% of anorthose, 10-20% of quartz and 0.5-1% of plasticizer; the medical stone porous ceramic is prepared through the steps of mixing the materials, grinding, forming and sintering. The medical stone porous ceramic chooses a medical stone containing multiple mineral substances and rare earth elements as a base material and has the excellent functions of adsorption and exchange, the properly added plasticizer is favorable for the forming process, and the rate of qualified products and the rate of quality products are increased. The sintering temperature is controlled to better keep the original functions of porosity, adsorption and exchange, and the loss and evaporation of microelements and the rear earth elements are prevented.
Owner:揭阳恒成陶瓷科技有限公司
Solution for preparing thymalfasin preparation and method for preparing thymalfasin preparation by virtue of solution
ActiveCN104587452AImprove stabilityStay porousPeptide/protein ingredientsDigestive systemFreeze-dryingInjections water
The invention provides a solution for preparing a thymalfasin preparation and a method for preparing the thymalfasin preparation by virtue of the solution. The pH value of the solution is 4-5, and each 1000ml of the solution contains 1-3g of a thymalfasin preparation, 35-55g of a stabilizer, 50-70ml of a cosolvent and the balance of a pH regulator and injection water. The thymalfasin preparation prepared by the solution disclosed by the invention is better in stability and shorter in freeze-drying cycle; and meanwhile, a freeze-dried product is porous.
Owner:SHANGHAI SOHO YIMING PHARMA
Preparation method of titanium dioxide/active carbon composite nanofibrous membrane
InactiveCN102021676BAchieve mass productionImprove bindingWater/sewage treatment by irradiationOther chemical processesSpinningPhosphoric acid
The invention provides a preparation method of a titanium dioxide / active carbon composite nanofibrous membrane, characterized by comprising the following specific steps: dissolving polyacrylonitrile powder in N, N-dimethyl formamide; mixing titanium hydroxide gel with the polyacrylonitrile solution to obtain electrostatic spinning stock solution, and performing electrostatic spinning to get the composite nanofibrous membrane; placing the composite nanofibrous membrane in an electrically heated drying cabinet for being pre-oxidized; soaking the composite nanofibrous membrane in phosphoric acidor potassium hydroxide solution, washing the solution to be neutral by distilled water, and drying the composite nanofibrous membrane in the drying cabinet; and then, under nitrogen protection, heating up to 450-550 DEG C, and cooling to room temperature to get the titanium dioxide / active carbon composite nanofibrous membrane. The preparation method improves combination firmness between fibers and active ingredients of a photocatalyst, and also improves charge capacity of the fibers; the titanium dioxide / active carbon composite nanofibrous membrane is high in photo catalytic activity, good inabsorption effect, reproducible and simple in a reproduction method, and can use sunlight, so that operations are easy and operation cost is low.
Owner:DONGHUA UNIV
Modification method of immobilization of hydrogen-production microorganisms in sludge by agar embedding method
InactiveCN103882001AShort acclimatization periodSpeed up entryOn/in organic carrierOn/in inorganic carrierTime delaysSludge
The invention relates to modification of immobilization of hydrogen-production microorganisms in sludge by an agar embedding method by adding anaerobe agar and gama-alumina. The mass ratio of plain agar to anaerobe agar is 2:1-4:1; the adding amount of gama-alumina is 1.5-2.5%; the volume ratio of agar solution to sludge is 2:3-3:2; after dripping ball formation, the agar balls are inoculated in an anaerobic fermentation hydrogen production system. The anaerobe agar can provide nutrition for hydrogen-production microorganisms, shorten the adaptation period, form certain pore channels after being used by microorganisms, and thus facilitate mass transfer. The gama-alumina is nontoxic, odourless, high in hardness, large in specific surface area, strong in adsorbability, and high in solution penetration rate, facilitates microorganism adhesion, and facilitates the enhancement of the mechanical strength of agar balls and the promotion of the mass transfer process. According to the invention, when the agar embedding method is modified, the cumulative hydrogen production amount is increased, the hydrogen production time delay is shortened, the specific hydrogen production rate is increased, the hydrogen concentration in the produced gas is increased, and continuous and stable hydrogen production by the system is maintained.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Preparation method of dried acorn
PendingCN107897873AMaintain nutritional contentIn line with the concept of green foodFood scienceBiotechnologyStarch gelatinization
The invention discloses a preparation method of dried acorn and belongs to the technical field of food processing. The dried acorn takes single acorn starch as a raw material and the preparation method of the dried acorn comprises the steps of starch gelatinization, cooling, cold knife cutting, airing, freezing and low-temperature heat pump drying. No additives are added in the whole dried acorn processing process, the method conforms to the green food concept, the quality is easy to control, the nutritional ingredients of the acorn starch are kept to the greatest extent, and the dried acorn has good rehydration, flat appearance and bright color and belongs to a high-end acorn starch product.
Owner:XIANGYANG SANZHEN FOOD
Heavy metal adsorbent as well as preparation method and application thereof
ActiveCN113274982AImprove adsorption capacityImprove adsorption efficiencyOther chemical processesWater contaminantsPolymer scienceOrganic chemistry
The invention relates to a heavy metal adsorbent, which comprises a covalent organic framework matrix and a polymer molecular chain grafted on the covalent organic framework matrix, and the polymer molecular chain contains a functional group capable of adsorbing heavy metal; the covalent organic framework matrix is obtained through copolymerization of a first monomer and a second monomer, and the first monomer and the second monomer are connected through condensation of an aldehyde group and an amino group; and the covalent organic framework matrix comprises a plurality of orderly arranged repeated pore structure units, each pore structure unit contains 3-96 polymer molecular chains, a chain link of each polymer molecular chain contains a modification group, and the polymerization degree of the polymer molecular chains is 2-150. The invention also relates to a preparation method and application of the heavy metal adsorbent.
Owner:北京石墨烯技术研究院有限公司
Rifampicin composition freeze-dried orally disintegrating tablet and preparation method thereof
InactiveCN102784126AStay porousIncrease vapor pressureAntibacterial agentsOrganic active ingredientsSide effectOrally disintegrating tablet
The invention provides a rifampicin composition freeze-dried orally disintegrating tablet and a preparation method thereof, relates to the technical field of medicines and medicine preparation methods, and mainly solves the problem that a common rifampicin preparation is excessive in first-pass effect and strong in side effect after repeated administration, and is difficultly swallowed by old people and children. The rifampicin composition freeze-dried orally disintegrating tablet is prepared from components including, by weight, 30%-60% of rifampicin, 25%-70% of mannitol, 2%-4% of gelatin, 0.1%-0.15% of sucralose and 50%-70% of tert-butanol-water. The rifampicin composition freeze-dried orally disintegrating tablet prepared from the components according to the weight percent is simple in preparation process and composition, mainly aims to meet the administration requirements of the children, and has the advantages of rapidness in disintegration and effectiveness, sufficiency in medicine absorption, convenience in taking, fine taste and avoidance of the first-pass effect of livers.
Owner:HAINAN WEI KANG PHARMA QIANSHAN
A low-temperature battery formation process
ActiveCN110661039BReduce weightImprove low temperature performanceFinal product manufactureLead-acid accumulators constructionCharge currentElectrical battery
The invention discloses a low-temperature battery formation process. The battery formation process of the invention achieves the purpose of saving cost, reducing battery weight, and improving low-temperature performance of the battery by adjusting the formation process and material preparation process. The charging process used It has the ability to determine the current according to the area of the product to be formed, determine the charge and discharge capacity according to the amount of active material, and always use the hydrogen evolution voltage as the control point to ensure the porosity of the negative electrode of the battery to a greater extent. Compared with other charging processes determined according to the charging time It is more scientific and reasonable, so the product produced by the technical solution of this application has the characteristics of high stability and high consistency, which is mainly reflected in key indicators such as product life and specific energy. The present invention mainly uses the constant temperature effect in the formation stage, and the battery temperature is always controlled between 20 and 45°C. Under this temperature state, the utilization rate of the charging current is the highest, and the materials in the plate will not be oxidized, and the low-temperature capacity of the produced battery is high. , Long life characteristics.
Owner:TIANNENG GRP HENAN ENERGY TECH
Method for preparing organic fertilizer from food waste anaerobic fermentation biogas residue
ActiveCN110668852BPromote reproductionEasy to useBio-organic fraction processingBiological combination treatmentProcess engineeringOrganic fertilizer
The invention discloses a method for preparing an organic fertilizer from kitchen garbage anaerobic fermentation biogas residues. The method comprises the following steps: I, mixing straw or wood bitswith a fermented biogas residue composting fertilizer and new kitchen garbage anaerobic fermentation biogas residues, performing uniform stirring, and performing primary aerobic fermentation; and II,performing secondary aerobic fermentation on a biogas residue mixed composting material after primary fermentation, controlling the temperature of aerobic fermentation to 30-50 DEG C, ensuring sufficient ventilation quantity, and stirring the biogas residue mixed composting material once every other 3-5 hours till aerobic fermentation is completed, wherein stirring and primary aerobic fermentation are implemented by using an aerobic composting stirring system of city kitchen garbage anaerobic fermentation biogas residues in the first step, and secondary aerobic fermentation is implemented byusing an aerobic composting ventilation system of the city kitchen garbage anaerobic fermentation biogas residues in the second step. The quality of the organic fertilizer can be improved, and industrial production can be achieved.
Owner:CHONGQING UNIV
Low-temperature battery formation process
ActiveCN110661039AReduce weightImprove low temperature performanceFinal product manufactureLead-acid accumulators constructionCharge currentProcess engineering
The invention discloses a low-temperature battery formation process. The battery formation process is characterized in that cost is saved by adjusting the formation process and the material preparation process, battery weight can be further reduced, low-temperature performance of the battery is improved, the charging process has the advantage that the current is fixed according to the area of a to-be-formed product, the charging and discharging amounts are determined according to the mass of active matters, a hydrogen evolution voltage is always utilized as a control key point, porosity of a negative electrode of the battery is ensured to a greater extent, and the charging process is more scientific and reasonable than other charging processes determined according to the charging time, sothe product produced by the technical scheme has characteristics of high stability and high consistency and is mainly reflected in key indexes such as product service life and specific energy. The battery formation process is advantaged in that the constant temperature effect is mainly adopted in the formation stage, the temperature of the battery is constantly controlled between 20 DEG C and 45 DEG C, in the temperature state, the charging current utilization rate is the highest, materials in a polar plate cannot be oxidized, and then the produced battery further has characteristics of high low-temperature capacity and long service life.
Owner:TIANNENG GRP HENAN ENERGY TECH
A kind of fire-proof and heat-insulating material for ship bulkhead and its preparation method and application
Owner:JIANGSU YANGZI XINFU SHIPBUILDING CO LTD
A kind of hydrothermal composite method of natural opal and tio2
ActiveCN106111139BStay porousGood crystallizationCatalyst activation/preparationMetal/metal-oxides/metal-hydroxide catalystsPorosityPollution
The invention relates to a hydrothermal composite method of natural opal and TiO2, and belongs to the field of development and utilization of new mineral functional materials. This method uses cheap natural opal as raw material and uses a step-by-step hydrothermal method to convert the trace impurity iron that is difficult to remove from the raw opal ore into useful doping ions and introduce it into anatase TiO2, which not only solves the problem of discoloration due to calcination of the product problem, and the iron-containing substances remaining at the interface between opal and TiO2 also enhance the visible light catalytic activity of anatase. The raw opal ore used in this method does not require pre-acid treatment, and the resulting composite does not require subsequent calcination. The porosity of the mineral itself is maintained, and the enrichment and degradation of organic pollutants can be completed simultaneously. This method has low energy consumption, little pollution, cheap raw materials, abundant resources, good product whiteness, and excellent visible light catalytic activity. It is a photocatalytic composite material with excellent environmental purification function.
Owner:JILIN UNIV
Porous fluid as well as preparation method and application thereof
PendingCN113694894AStay porousImprove solvating powerOrganic chemistryOther chemical processesOrganic solventPhysical chemistry
The invention provides a porous fluid as well as a preparation method and application thereof. The preparation method comprises the steps that: 2-methylimidazole and N-(3-azide)-N, N-dioctyl-N-methyl ammonium bromide are dissolved in an organic solvent, under the protection of inert gas, COR and PMDETA are added, stirring is conducted for 8-14 h at the room temperature, and a crude product A is obtained; the crude product A is purified and dried to obtain a substance A; the substance A, PEGS and an ethanol solution are mixed, a reaction is performed at 60-80 DEG C for 8-14 hours, and dialyzing is performed for 60-80 hours to obtain an ionic liquid for later use; and nano-scale MOFs are dispersed in an ethanol solution, then the ionic liquid obtained in S2 is added, uniform mixing is performed, shaking is performed for 8-14 hours, the solvent is removed, and drying is performed to obtain the porous fluid. The porous fluid provided by the invention has both flowability and porosity, and has a wide application prospect.
Owner:HUNAN UNIV
Denitrifying phosphorus-removing carrier and use
InactiveCN100500279CEasy to makeLow costOther chemical processesAluminium silicatesIndustrial waste waterInorganic phosphorus
The present invention belongs to the water treatment technical field and particularly relates to the preparation and use of a nitrogen and phosphorus removal carrier. The carrier of the present invention can provide the water environmental protection by the nitrogen and phosphorus removal treatment towards industrial wastewater and living sewage, which contain ammoniacal nitrogen and inorganic phosphorus, and towards pollution source or water in non-point source pollution. The nitrogen and phosphorus removal carrier of the present invention is characterized in that when a dry basis of the finished product is 200kg, and calculating according to weights, the components are as followings: 100kg to 120kg clinoptilolite powder, 90 percent of the exchange capacity over 100 meshes of which is more than 100cmol (plus) / kg; 50kg to 70kg land plaster, 90 percent of which is more than 100 meshes; 10kg industrial salt, the granular size of which is 2cm to 3 cm; 20kg common portland cement (labels of which is from 325 to 525); 2kg sawdust of pine tree; 100kg to 200kg complementary water. The present invention also discloses the preparation method and the application of the carrier.
Owner:HUAZHONG AGRI UNIV
Anti-fouling heat dissipation composite board and preparation method thereof
InactiveCN113858721APorosityHigh porosityLamination ancillary operationsSynthetic resin layered productsPolymer scienceGlycidyl methacrylate
The invention discloses an anti-fouling heat dissipation composite board and a preparation method thereof, and relates to the technical field of new materials. The preparation method comprises the following steps of: firstly, sequentially reacting pretreated straws subjected to alkali boiling, peeling and crushing with glycidyl methacrylate and polyethyleneimine under the action of an emulsifier OP-10 and benzoyl peroxide to prepare modified straws; then mixing the modified straws with a copper ion solution, and carrying out micro-crosslinking in an organic solvent by using carbon dioxide to obtain mixed modified straws; then mixing the mixed modified straws with an isocyanate adhesive, spreading the mixture between two polypropylene micro-porous membranes, and carrying out hot press molding to obtain a composite board blank; and finally treating the composite board blank with dopamine, then fumigating the composite board blank with an acid solution, and drying the composite board blank to obtain the anti-fouling heat dissipation composite board. The anti-fouling heat dissipation composite board prepared by the invention has excellent heat dissipation performance and good oil stain resistance.
Owner:南京和于润科技有限公司
A kind of preparation method of wet white skin
A kind of preparation method of wet white skin, first adjust the pH of bare skin to the vicinity of the isoelectric point of the skin, and then squeeze water; put the squeezed skin into a sealing device, add dehydrated alcohol 2-4 times the weight of the skin to carry out Dehydration, after rotating for 5-240min, recover the bath liquid; repeat the dehydration operation 2-4 times; then prepare a mixed solution with a higher polarity than ethanol, and dehydrate 1-3 times, each time the dosage is 100-400% of the tare weight, After rotating for 30-600 minutes, recover the bath liquid; finally add an acetone solution with a tare weight of 100-400%, take it out after rotating for 5-240 minutes, the water content in the skin is less than 10%, and the wet white skin is obtained. The present invention adopts a step-by-step dehydration method with increasing solvent polarity, so that the water on the surface and inside of the bare hide can be replaced slowly and evenly without being affected by the original state and thickness of the bare hide, thereby obtaining a porous fiber structure , wet white leather with good physical and mechanical properties.
Owner:SICHUAN UNIV
Method for modifying manganese ore and application thereof in removal of arsenic from groundwater permeable reactive wall
InactiveCN101920188BEasy to makeImprove adsorption capacityOther chemical processesWater contaminantsManganeseMaterials science
The invention belongs to the technical field of groundwater treatment, and discloses a method for modifying low-grade manganese ore and application thereof in removal of arsenic from a groundwater permeable reactive wall. The method is characterized in that low-cost and readily available iron-containing manganese ore is used as a main raw material, after being subjected to modified pelleting, thematerial is taken as a material of the permeable reactive wall, and the material can remove arsenic from groundwater quickly and efficiently. Based on 200 kilograms of dry basis of manufactured goods, the groundwater permeable reactive wall arsenic removing material comprises the following components by weight: 120 to 150 kilograms of iron-containing manganese ore (40 to 50 percent of manganese content, 15 to 25 percent of iron content, and granules is sieved with a 200-mesh sieve), 5 to 15 kilograms of anatase nano-titanium dioxide, 10 to 20 kilograms of coconut shell activated carbon, 30 to50 kilograms of ordinary silicate cement (grade 325) and 100 to 200 kilograms of clear water. The roasting temperature is between 150 and 200 DEG C. The invention also discloses the method for modifying the low-grade manganese ore and the application thereof in the removal of arsenic from the groundwater permeable reactive wall.
Owner:HUAZHONG AGRI UNIV
A kind of solution for preparing new preparation of thymus method and method of using the solution to prepare new preparation of thymus method
ActiveCN104587452BImprove stabilityStay porousPeptide/protein ingredientsDigestive systemPhysical chemistryThymus Glands
The invention provides a solution for preparing a new preparation of thymus and a method for preparing a new preparation of thymus using the solution. The pH value of the solution is 4-5, and every 1000ml of the solution contains 1-3g of thymus Faxin, 35-55g stabilizer, 50-70ml co-solvent, the balance is pH regulator and water for injection. The new thymus method preparation prepared by the solution of the present invention has better stability, shorter freeze-drying period and the obtained freeze-dried product still maintains porosity.
Owner:SHANGHAI SOHO YIMING PHARMA
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