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138results about How to "Avoid inactivation" patented technology

Supported IrOx catalyst as well as preparation method and application thereof

The invention provides a supported IrOx catalyst as well as a preparation method and application thereof. The supported IrOx catalyst comprises an oxide carrier and an active component supported on the carrier, the active component comprises an Ir elementary substance and amorphous IrOx coated on the surface of the Ir elementary substance; and the crystal structure of the IrOx is long-range disordered and short-range ordered. The preparation method of the supported IrOx catalyst is convenient to implement, high in reproducibility and beneficial to industrial preparation and production, gram-level batch preparation can be achieved under the laboratory condition, and possibility is provided for large-scale preparation of the low-cost, high-activity and high-stability proton exchange membrane water electrolysis hydrogen production anode catalyst.
Owner:CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES

Roof waterproof protection layer construction method based on microbial concrete

The invention belongs to the field of roof waterproof protection layers, and particularly discloses a roof waterproof protection layer construction method based on microbial concrete, which comprises the following specific steps: S1, microbial culture; s2, protective carrier wrapping; s3, preparing concrete; s4, concrete pouring; s5, concrete curing; according to the invention, expanded perlite particles are used as a carrier medium to respectively immobilize individual bacillus and aerobic mixed bacteria, so that the expanded perlite particles are activated and induced to form a composite mineralized structure when cracks are formed, the crack repairing effect is enhanced, and the high strength of aragonite and the good filling property of calcite are combined, so that the crack repairing effect is improved. According to the present invention, the expanded perlite particles are adopted as the carrier medium, and are combined with the hydrogel wrapping the surface of the bacteria-containing expanded perlite, such that the microorganism can be protected, the water storage agent can be used as the water storage agent, and the living environment of the microorganism can be enhanced.
Owner:CHINA MCC17 GRP CO LTD

Heat-resistant H1N1 subtype influenza virus mutant vaccine strain and application thereof

The invention relates to a heat-resistant H1N1 subtype influenza virus mutant vaccine strain and application thereof. The invention belongs to the technical field of virus gene engineering, and particularly discloses a heat-resistant H1N1 subtype influenza virus mutant vaccine strain and application thereof. According to the H1N1 subtype influenza virus mutant vaccine strain and the preparation method thereof, the HA protein head region, which is a key region influencing the virus thermal stability, is mutated, the virus thermal stability can be remarkably improved only by mutating three amino acid sites, meanwhile, the virus still has good thermal stability after being inactivated, the H1N1 subtype influenza virus mutant vaccine strain prepared by HA protein point mutation has the preservation number of CCTCC NO: V202471, and the H1N1 subtype influenza virus mutant vaccine strain can be used for preparing the H1N1 subtype influenza virus mutant vaccine strain. And immune animals can be induced to generate high-level HI antibodies.
Owner:INST OF ANIMAL SCI & VETERINARY HUBEI ACADEMY OF AGRI SCI +1

Skin care composition containing stem cell extract as well as preparation method and application of skin care composition

The invention provides a skin care composition containing stem cell extract as well as a preparation method and application of the skin care composition, and belongs to the technical field of cosmetics. The method comprises the following steps: mixing and culturing the extracted urine-derived stem cells and pilose antler stem cells in a DMEM culture medium added with epidermal growth factors, cholera toxin, penicillin, streptomycin, transferrin, IL-2 and IL-15, then separating a culture solution to obtain mixed exosomes, mixed stem cells and extracellular matrixes, preparing the mixed stem cells into stem cell lipidosome, and preparing the stem cell lipidosome. Embedding the stem cell extract and the mixed exosome into titanium dioxide / silicon dioxide microspheres, adding into an extracellular matrix, and uniformly dispersing to obtain the skin care composition containing the stem cell extract. The skin care composition containing the stem cell extract prepared by the invention can obviously prolong the preservation period of stem cells and exosomes and improve the repair and improvement of the stem cells and the exosomes on skin, and the prepared composition has better effects of resisting aging, whitening, promoting skin elasticity, resisting wrinkles and the like, and has a wide application prospect.
Owner:BEIJING SINOMENIUM STEM CELL TECH RES INST CO LTD

Preparation method of ruthenium molybdenum manganese composite electrocatalyst for purifying chlorine-containing organic waste gas

The invention relates to the technical field of composite electrocatalysts, in particular to a preparation method of a ruthenium-molybdenum-manganese composite electrocatalyst for purifying chlorine-containing organic waste gas, which comprises the following steps: S1, dissolving ruthenium salt and manganese salt in deionized water according to a certain proportion, and stirring for a period of time to obtain a mixed solution; s2, introducing a certain amount of ozone gas into the mixed solution prepared in S1; s3, weighing a certain amount of phosphomolybdic acid, adding the phosphomolybdic acid into the mixed solution in S2, and continuously stirring for a period of time to obtain a stable solid precipitate; and S4, putting the solid precipitate prepared in S3 into a muffle furnace, and roasting at a certain temperature to obtain the ruthenium-molybdenum-manganese composite electrocatalyst. By optimizing the loading proportion of ruthenium, molybdenum and manganese and the preparation method, the stability and catalytic activity of the catalyst are effectively improved. The catalyst has excellent chlorine poisoning resistance, can efficiently decompose chlorine-containing VOCs at a low temperature, realizes rapid dissociation of chlorine atoms and organic groups, and inhibits generation of by-products.
Owner:NANTONG UNIV

Cosmetic delivery system based on natural wall material, preparation method and application

The invention belongs to the technical field of cosmetics, and particularly relates to a cosmetic delivery system based on a natural wall material, a preparation method and application. The cosmetic delivery system is of a core-shell structure, a core is a cosmetic active component, and a shell layer is a composite polymer gel network of sodium alginate, sophorolipid and cellulose. The natural polysaccharide composite wall material is green and safe, has good biocompatibility and strong compatibility with cosmetic formulas, and does not irritate the skin. The delivery system can effectively protect cosmetic active ingredients from being damaged by illumination and oxygen, and the storage stability of the active ingredients is remarkably improved; meanwhile, slow release and targeted transdermal absorption of active ingredients are realized, and the bioavailability is improved.
Owner:GUANGZHOU SHIFEI BIO-TECH CO LTD

Device and process for preparing sulfuric acid from wet-process acid gas

ActiveCN119524588AAchieve the effect of first-level conversion and first-level condensationlow costSulfur compoundsDispersed particle separationActivated carbonPtru catalyst
The invention provides a device and a process for preparing sulfuric acid from wet-process acid gas, the device comprises an incinerator, a first waste heat boiler, a sulfur dioxide converter, a second waste heat boiler, a condenser and an activated carbon reactor which are sequentially connected through a pipeline, and the sulfur dioxide converter comprises four catalyst bed layers which are sequentially arranged from top to bottom; two air supplement valves and two interlayer heat exchangers are arranged on the sulfur dioxide converter; and a return pipe is communicated between the activated carbon reactor and the condenser. The process provided by the invention can treat various working conditions of feed gases with different concentrations, can adjust the oxygen concentration in the catalyst bed layer according to the change of the feed gas concentration, performs emergency cooling on the catalyst bed layer when an overtemperature phenomenon occurs in the catalyst bed layer, and adopts an activated carbon reactor at the tail end to adsorb and convert sulfur dioxide to obtain dilute sulfuric acid. Dilute sulfuric acid flows back to the condenser to spray sulfur trioxide, sulfuric acid with high concentration is obtained, no waste water is generated in the whole process, and tail gas is discharged after reaching the standard.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Device for collecting roes of reef fishes

The invention discloses a device for collecting roes of reef fishes, and belongs to the technical field of fish breeding, the device comprises a collector, the main body of the collector is of a cylindrical structure, one end of the collector is open and provided with a guide pipe, the guide pipe is externally connected with a filter assembly, the other end of the collector is provided with a cover plate, the outer side is provided with a propeller thruster, and the inner side is provided with a baffle; a water pump is installed on the baffle and connected with one end of a water pumping pipe, the other end of the water pumping pipe is connected to the outside of the collector, a cylinder is arranged in the collector, and the water pump is separated from the cylinder through an obliquely-arranged filter screen; the gravity center of the ship-shaped floater is at the bottom, a buoy is fixedly connected to the lower portion of the ship-shaped floater, and the floater is connected with the top of the collector through a telescopic pipe. The roe collecting device is suitable for collecting roes of reef fishes, consumed manpower and material resources are few, roe damage is small, long-time continuous roe collecting can be achieved, and the roe collecting efficiency is improved.
Owner:ZHEJIANG MARICULTURE RES INST

Preparation and application method of pine needle organic compost

The invention discloses a pine needle organic compost preparation and application method, and belongs to the technical field of organic fertilizers, and the pine needle organic compost preparation and application method comprises the following steps: mixing potassium sulfate, plant ash, modified attapulgite, borax, pine needles and rape seed cakes, uniformly stirring, grinding, and carrying out puffing treatment to obtain a puffed material; uniformly mixing the puffed material, potassium citrate and a composite strain, fermenting, and drying to obtain a fermented material; mixing the leavening, the seaweed extract, the modified cellulose and the lignin aqueous dispersion to obtain a compound microcapsule; mixing the compound microcapsules, the reinforcing filler and the organic fertilizer to obtain a mixture, and dehydrating, granulating, screening and packaging the mixture to obtain the organic compost. The compound microcapsules avoid the loss of beneficial components of the leavening and the organic fertilizer in the processes of dehydration, granulation, screening and packaging, and the compound microcapsules provide a living space for composite strains in the leavening; the reinforcing filler has a porous structure, so that the adsorption of the fertilizer is improved.
Owner:HENGYANG COUNTY BRANCH HENGYANG COMPANY OF HUNANTOBACCO

Latex enhanced immunoturbidimetry detection reagent and application thereof

The invention discloses a latex enhanced immunoturbidimetry detection reagent, and relates to the technical field of medical detection. Comprising the following components: an inorganic salt, a chelating agent, a coagulant, an excipient, a nonionic surfactant, an antibiotic, a preservative, an antibody stabilizer, a suspending aid, latex microspheres labeled with antibodies, high-purity liquid paraffin, amphoteric organic ionic salt, amino-terminated water-soluble hyperbranched polyamide, 1, 2-propylene glycol, a dispersant, a dispersant, a dispersant, a dispersant, a dispersant and a dispersant. The kit comprises 1, 3-bis ((trihydroxymethyl) methylamino) propane, hexahydro-1, 3-bis ((trihydroxymethyl) methylamino) propane, hexahydro-1, 3-s-triazine and a buffer solution. The latex enhanced immunoturbidimetric detection reagent is good in stability, high in repeatability, good in sensitivity and long in shelf life.
Owner:JIANGSU RONGSHENG JIAMEI BIOREAGENTS CO LTD

Composition and application thereof in inhibition of retrovirus inactivation

The invention belongs to the technical field of indication viruses, and particularly relates to a composition and application thereof in inhibition of retrovirus inactivation. The composition provided by the invention comprises 15 mM of glycine betaine and 50 mM of fructose. The fructose can increase the half-life period of the retrovirus and the cell specific productivity, and the glycine betaine can neutralize the negative effect of the high osmotic pressure environment on the cell growth. The glycine betaine and the fructose are compounded according to a certain proportion, so that the stability of the retrovirus can be improved, the inactivation of the retrovirus can be inhibited, the inactivation rate of the retrovirus can be reduced, the specific productivity of cells can be improved, the half-life period of the virus can be prolonged, the retrovirus stock solution with high stability and long half-life period can be obtained, and the time and the cost can be reduced; therefore, the safety and effectiveness of retrovirus production are improved.
Owner:SINO BIOLOGICAL INC

Method for increasing content of glutathione in egg yolk

The invention relates to a method for increasing the content of glutathione in egg yolk. According to the present invention, by using the effect that cysteine can combine glutamic acid and glycine in animal bodies so as to synthesize glutathione, the artificially synthesized N-acetylcysteine is added to the laying fowl feed, and the laying fowls are fed for 4 weeks, such that the glutathione content in the egg yolk is significantly increased, and can be up to 1.44 times of the glutathione content in the egg yolk of the common poultry egg, such that the glutathione content in the egg yolk can be significantly improved; and the nutritional value and the economic value of the poultry eggs are improved.
Owner:CHINA AGRI UNIV

Method for efficiently degrading corn straws containing low-temperature fungicide for cold regions

PendingCN119613157AFast degradationshorten degradation timeMicroorganism based treatmentBiotechnologyFungicide
The invention discloses a high-efficiency degradation method of corn straws containing a low-temperature microbial inoculum for cold regions, which comprises the following steps: crushing corn straws, spraying degrading bacteria onto straw fragments, burying the straw fragments attached with the microbial inoculum under soil through cultivated land, and accelerating the degradation speed of the straws by utilizing the degrading bacteria, so that the degradation rate of the straws is increased; the corn straw degradation efficiency is improved (the corn straw degradation time can be shortened to be within 45 days), the growth environment temperature of bacteria is kept by covering the soil with straw powder, the activity of the bacteria can be improved, the straw degradation speed of the bacteria is further increased, and ultraviolet rays can be isolated by spraying water on the soil and covering the soil with the straw attached with the microbial inoculum, so that the corn straw degradation efficiency is improved. Sunlight is prevented from irradiating the fungicide to kill the fungicide, and the survival rate of microorganisms in the fungicide is increased.
Owner:HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Process for the deoxygenation of fischer-tropsch synthesis oils and deoxygenated adsorbents

The application discloses a deoxygenation method and a deoxygenation adsorbent for Fischer-Tropsch synthesis oil, and relates to the field of Fischer-Tropsch synthesis oil processing.The deoxygenation method comprises the following steps: introducing Fischer-Tropsch synthesis oil into an adsorption tower filled with the deoxygenation adsorbent, and removing oxygen-containing compounds.The deoxygenation adsorbent is prepared by the following method: step S1, adding an aluminum source, a silicon source and a template agent into a lye, and performing first aging at room temperature; continuously adding the aluminum source and the silicon source, and performing second aging at room temperature; performing crystallization at a predetermined temperature; and filtering and washing the product to obtain a molecular sieve; and step S2, immersing the molecular sieve in a lye, adding a template agent into the lye, and then performing crystallization; and filtering, washing, drying and calcining the product after the crystallization to obtain the deoxygenation adsorbent.The deoxygenation method for Fischer-Tropsch synthesis oil provided by the application significantly improves the quality of Fischer-Tropsch synthesis oil and the economic benefits of subsequent processing by preparing a deoxygenation adsorbent with multiple levels of pores and combining the adsorption tower.
Owner:INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD

Highly efficient sulfur tolerant catalysts for carbonyl sulfide hydrolysis, methods of making and using the same

The application belongs to the technical field of carbonyl sulfur hydrolysis catalysts, and discloses a high-efficiency sulfur-resistant catalyst for carbonyl sulfur hydrolysis, a preparation method and application thereof.The preparation method comprises the following steps: (1) preparing a porous ceramic carrier containing alumina, titanium dioxide and zirconium dioxide; (2) in-situ growing a metal organic framework material containing lanthanum, bismuth and cerium on the surface of the porous ceramic carrier by using a solvothermal method; (3) performing a calcination treatment on the porous ceramic carrier loaded with the metal organic framework material in an oxygen-containing atmosphere to obtain a catalyst precursor; and (4) performing a reducing gas plasma bombardment treatment on the catalyst precursor to obtain the high-efficiency sulfur-resistant catalyst.The high-efficiency sulfur-resistant catalyst has high-efficiency low-temperature activity, excellent sulfur resistance and long service life.
Owner:成都达奇科技股份有限公司

Probiotic coupled galactose modified lipid nanoparticle wrapping diammonium glycyrrhizinate, L-arginine and copper tannic acid nano enzyme and preparation method thereof

PendingCN121910770AAchieve liver-targeted deliveryIncrease enzyme-like activityOrganic active ingredientsAntipyreticArginineNanoparticle
The invention belongs to the field of pharmaceutical preparations. The invention relates to lipid nanoparticles modified by probiotic coupled galactose and coated with diammonium glycyrrhizinate, L-arginine and copper tannic acid nano enzyme as well as a preparation method and application of the lipid nanoparticles. The lipid nanoparticles prepared by coupling and wrapping the diammonium glycyrrhizinate, the L-arginine and the copper tannic acid nano-enzyme with the probiotics have good biocompatibility, the preparation method is simple, the particle size distribution of the nanoparticles is uniform, the half-life period of a medicine circulating in a body can be prolonged, the inherent beneficial functions of the probiotics are cooperated, and the bioavailability of the medicine is improved. The potential application value is realized in the fields of treating the metabolic dysfunction related steatohepatitis and the like.
Owner:CHONGQING MEDICAL UNIVERSITY

A metal-doped bismuth ferrite-based perovskite composite material, its preparation method and application

This invention relates to the field of wastewater treatment technology, specifically to a metal-doped bismuth ferrite-based perovskite composite material, its preparation method, and its applications. The molecular formula of the metal-doped bismuth ferrite-based perovskite composite material is Bi. 1‑x A x Fe 1‑y B y O3; 0 ≤ x < 1, 0
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Nursery stock transplanting branch stabilizing device for landscaping

The utility model relates to the technical field of nursery stock transplanting, and discloses a landscaping nursery stock transplanting branch stabilizing device which comprises a base, supporting plates are fixedly connected to the two sides of the edge of the surface of one end of the base, a second sliding rod is fixedly connected to the upper portion of the outer wall of one side of an installation frame, and an electric sliding rail is fixedly connected to the lower portion of the outer wall of one side of the installation frame. And the surface of one end of the electric sliding rail is slidably connected with a third connecting plate, the upper portion of the outer wall of the surface of one end of the third connecting plate is fixedly connected with a sliding block, the sliding block is slidably connected with the second sliding rod, the surface of the other end of the third connecting plate is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly connected with a fixing plate. According to the seedling transplanting device, through the arrangement of the electric push rod, the second sliding rod and the electric guide rail, the second clamping plate can be moved through the electric push rod and the electric guide rail, so that seedlings are moved out of a transplanting pit, the seedlings do not need to be manually placed on the device, and the labor intensity is reduced.
Owner:WUHU XINDA LANDSCAPING GRP

A novel bio-organic fertilizer and a preparation method thereof

The application discloses a kind of bio-organic fertilizer and preparation method thereof, belong to organic fertilizer technical field.The bio-organic fertilizer includes by weight parts: plant source organic matter matrix 62-75 parts, carbonized rice husk 10-20 parts, compound functional bacterial agent 0.5-3 parts, mineral conditioning component 0.5-2 parts.Plant source organic matter matrix is composed of rice bran, corn meal, soybean meal, soybean oil;Compound functional bacterial agent is compounded by indigenous functional bacterial flora and artificial intensive bacterial flora according to mass ratio 1:(1-2);Preparation whole process uses normal temperature powder process, avoids high temperature inactivation bacterial flora.The whole plant source formula of the application eliminates heavy metal and antibiotic pollution of livestock and poultry manure source, and the porous carrier of carbonized rice husk cooperates with normal temperature process to greatly improve the survival rate of bacterial flora, and the double bacterial system is adapted to local soil, and is colonized for a long time, which can realize multiple functions such as organic matter supplement, acid-base two-way adjustment, granular structure repair, soil-borne disease prevention and control.
Owner:计会利

Mesoporous platinum@platinum nickel core-shell framework nanowires and methods of making the same

This invention relates to a mesoporous platinum@platinum-nickel core-shell framework nanowire and its preparation method, comprising the following steps: (1) uniformly mixing platinum precursor, nickel precursor, structure directing agent, and reducing agent with a first solvent, and performing a hydrothermal reaction to obtain Pt@Pt-Ni core-shell nanowires; (2) uniformly mixing the Pt@Pt-Ni core-shell nanowires with a second solvent and acetic acid, and performing an etching reaction to obtain etched mesoporous platinum@platinum-nickel core-shell framework nanowires. This invention employs a hydrothermal method, which is simple, reproducible, and allows for batch production with safety. Compared with traditional commercial platinum-carbon catalysts, the catalytic activity is greatly improved, the stability is greatly enhanced, and the production cost is reduced.
Owner:WUHAN UNIV OF TECH

A catalyst for decomposing N2O in exhaust gas of a marine ammonia internal combustion engine and a preparation method thereof

PendingCN122377523AImprove stabilityReduce the number of hydroxyl groupsMolecular sievePtru catalyst
The application belongs to the technical field of ship exhaust purification, and particularly relates to a catalyst for decomposing N2O in the exhaust of a ship ammonia internal combustion engine and a preparation method thereof. 3+ By replacing Co ions in the Co3O4 spinel lattice into the lattice, the doping behavior can effectively reduce the number of hydroxyl groups on the surface of the catalyst, significantly weaken the adsorption and combination ability of water molecules, and thus improve the stability of the catalyst in a high-humidity exhaust environment. As an additive, CeO2 uses its oxygen storage capacity to promote the migration and desorption of oxygen species in the reaction, preventing the deactivation of active sites due to oxygen poisoning. The molecular sieve carrier not only provides a highly dispersed surface for the active component to prevent sintering, but also optimizes the adsorption and activation path of N2O and alleviates the poisoning effect of nitrogen-containing intermediate species or impurities in the exhaust on the Co active center during the reaction.
Owner:BEIJING UNIV OF TECH

Single atom catalysts and their preparation and application in reverse water gas shift reaction

The present invention belongs to the technical field of catalyst development, and relates to the preparation of a single-atom catalyst and its application in the reverse water-gas shift reaction. The present invention adopts a roasting method to prepare a carbon material-loaded non-precious metal single-atom catalyst, and the metal loading is 1 to 10 wt% (in terms of metal), which has good reverse water-gas shift activity. The present invention utilizes the characteristics of single-atom isolated sites to avoid the occurrence of carbon dioxide methanation side reactions; at the same time, the heteroatoms on the surface of the carrier can anchor the metal single atoms, so that it has good thermal stability. The present invention develops a method for preparing a carbon material-loaded single-atom catalyst, which does not use precious metals, has a wide source of raw materials, is low in cost, and is suitable for large-scale preparation.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Instantaneous sensing and early warning method and system for inorganic salt impurities content in urea

PendingCN122651531AGuaranteed uptimestable emissionsDatasheetLevel data
The application discloses a method for instant sensing and early warning of inorganic salt impurity content in urea, comprising: calibration reference database, including: pure urea solution density-temperature-concentration reference curve and data table calibration, typical inorganic salt impurity conductivity characteristic calibration and mixed urea solution conductivity-impurity content mapping relationship calibration; real-time acquisition of field data; calculation of inorganic salt impurity static content, including: calculation of total inorganic salt impurity concentration in the current urea solution; combined with urea dissolving tank geometric parameters and real-time liquid level data of the urea dissolving tank, the total mass of the inorganic salt impurity in the dissolving tank is calculated; dynamic calculation of impurity increment per unit time, based on multiple groups of static impurity mass data collected in continuous time sequence, the increase of the inorganic salt impurity in the urea dissolving system per unit time is calculated; dynamic calibration based on historical data; hierarchical early warning and interlocking control. Corresponding systems, electronic devices and computer readable storage media are also disclosed.
Owner:HUADIAN POWER INTERNATIONAL CORPORATION LTD

A formulation and preparation method of an exosome-based skin medication

This invention provides a formulation and preparation method for an exosome-based skin medication. Taking the preparation of a 100g finished formulation as an example, it consists of active ingredients, a nanogel carrier, a composite stabilizer, a moisturizer, a pH adjuster, a preservative, and deionized water. By constructing a nanogel sustained-release system adapted to exosomes and a composite protection mechanism, the exosomes are stably and slowly released and efficiently absorbed on the skin surface within 7 days. This solves the problems of rapid release, low utilization rate, poor stability, and frequent reapplication required for exosome-based skin medications, thereby improving the skin care and treatment effects of exosomes.
Owner:BEIJING EASENG MEDICAL SCI CO LTD

Low-temperature high-concentration washing liquid and preparation method thereof

PendingCN121873891ASolving the Winter Freeze Problemlow freezing pointSurface-active detergent compositionsDetergent perfumesAlcoholGlycerol
The invention relates to the technical field of laundry products, in particular to a low-temperature high-concentration washing liquid and a preparation method thereof. The cleaning agent is prepared from the following components in percentage by weight: 38% of isomerized 1307, 28% of secondary alcohol aeo-9, 10% of propylene glycol, 0.3% of compound enzyme, 2% of glycerol, 21.2% of deionized water and 0.5% of essence. According to the low-temperature high-concentration washing liquid and the preparation method thereof, the isomerized 1307 and the secondary alcohol AEO-9 are compounded according to a specific proportion, and the synergistic anti-freezing effect of the propylene glycol and the glycerol is combined, so that the freezing point of a system is remarkably reduced, the pH value can be adjusted according to the actual situation, and the low-temperature high-concentration washing liquid is prepared. The prepared washing liquid can still keep good fluidity after being stored for a long time at 0 DEG C or even lower temperature, is free of crystallization and solidification, and solves the problem of freezing of highly concentrated products in winter.
Owner:SHENZHEN INTERACTIVE NETWORK TECH CO LTD

Device for extracting and concentrating active ingredients of momordica grosvenori

The invention discloses a momordica grosvenori active component extraction and concentration device which comprises a bottom shell, a second fixing disc, an inner pipe and a rotating rod, the top of the bottom shell is in bolted connection with a middle shell, the top of the middle shell is in bolted connection with an upper shell, and the top of the upper shell is in bolted connection with a top cover; an electric heating rod is installed at the bottom of the inner side of the bottom shell, and a liquid level meter is fixed to the inner wall of one side of the bottom shell. According to the invention, the electric heating rod and the circulating pump are arranged, and during heating concentration, the circulating pump drives raw materials to circularly flow in the bottom shell, so that the raw materials uniformly contact with the electric heating rod during flowing, the time that the raw materials in unit volume contact with the electric heating rod is shortened, inactivation of active components caused by local overheating is avoided, and the use safety is improved.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI

Synthesis method of 3, 3-dimethyl-4, 6, 6-trichloro-7, 7, 7-trifluoroheptanoate

The invention discloses a synthesis method of 3, 3-dimethyl-4, 6, 6-trichloro-7, 7, 7-trifluoroheptanoate, and relates to the technical field of organic synthesis. The 3, 3-dimethyl-4, 6, 6-trichloro-7, 7, 7-trifluoroheptanoate is obtained by taking methyl 3, 3-dimethyl-4, 6, 6-trichloro-7, 7, 7-trifluoroheptanoate and trifluorotrichloroethane as raw materials and carrying out addition reaction under the action of a catalyst. The preparation method comprises the following steps: (1) preparing a catalyst; (2) premixing; (3) initiating reaction; (4) reacting; (5) recycling; (6) layered washing; and (7) dehydrating. The method has the advantages that the reaction is performed in stages, and the catalyst with stable property and flowability is firstly prepared; adding relatively excessive catalyst to initiate reaction at low temperature; and after the reaction is initiated, adding the residual catalyst and the reaction raw materials in a double-dropwise manner. Therefore, the problems of low synthesis efficiency of the catalyst after addition by a one-pot method, high deactivation rate of the catalyst due to too fast temperature rise after initiation of the addition reaction, too long reaction time, low reaction yield and the like are avoided.
Owner:SYNWILL YICHANG CHEM CO LTD +1

Organic fiber air plasma surface treatment device and method for adhesive film rolling process prepreg machine

The invention provides an organic fiber air plasma surface treatment device and method for an adhesive film rolling process prepreg machine. The organic fiber air plasma surface treatment device comprises a low-temperature plasma power supply, a voltage regulator, a digital oscilloscope, a low-temperature plasma discharge device and a connecting and supporting truss. The low-temperature plasma power supply can display current and voltage conditions of the power supply host in real time; the voltage regulator can regulate the output voltage through the knob; the digital oscilloscope can detect the output waveform condition of the low-temperature plasma power supply in real time; the low-temperature plasma discharging device comprises a supporting device, an adjusting rod, a medium fixing device and an emitting device, and plasma discharging can be achieved at the normal temperature and the normal pressure. And the low-temperature plasma discharge device can be supported at a proper height by the connecting and supporting truss and is combined with the adhesive film rolling process prepreg machine. The organic fibers can be subjected to surface modification in the prepreg production process, and the purposes of improving the interface performance of the organic fibers and the resin and improving the bonding strength of the resin and the organic fibers are achieved.
Owner:TIANMUSHAN LABORATORY

Continuous preparation method of hydrogenated lecithin based on microreactor

The invention belongs to the technical field of pharmaceutical chemicals, and provides a continuous preparation method of hydrogenated lecithin based on a microreactor. The method comprises the following steps: (1) dissolving lecithin in a solvent to obtain a lecithin solution; (2) continuously pumping the lecithin solution into a microreactor filled with a palladium-loaded catalyst, and simultaneously introducing hydrogen to carry out hydrogenation reaction; (3) after the reaction is finished, removing the solvent to obtain hydrogenated lecithin; the solvent is one or more of methanol, ethanol, normal hexane or normal heptane. The microchannel continuous flow technology is matched with the selection of the catalyst and the solvent, so that the lecithin is hydrogenated more thoroughly, and the stability, dispersity and emulsibility of the hydrogenated lecithin are improved; besides, an adopted solvent system is green and safe, reaction conditions are mild, a catalyst does not need to be separated, continuous operation, short reaction time and high production efficiency can be achieved, safety and economy are obviously improved, and the method is suitable for industrial application.
Owner:BEIJING YANZHISHAN TECH CO LTD

Multi-carbon-based microbial blended fertilizer for improving quality and increasing yield of rice

PendingCN121779147AIntercalation modification facilitatesAvoid inactivationBacteriaExcrement fertilisersBiotechnologyToxicology
The invention discloses a multi-element carbon-based microbial blended fertilizer for rice quality improvement and yield increase, and relates to the technical field of fertilizers, and the multi-element carbon-based microbial blended fertilizer comprises the following raw materials by weight: 10-20 parts of a multi-element carbon source, 40-50 parts of a compound fertilizer, and 1-1.5 parts of a vermiculite-loaded microbial agent. The vermiculite-loaded microbial agent is prepared from modified vermiculite-loaded nitrogen-fixing bacteria, phosphate-solubilizing bacteria, potassium-solubilizing bacteria and growth-promoting bacteria, so that the microbial strains can be slowly released and maintain the activity, and the activity of microbial flora can be durably promoted by combining a multi-element carbon source and a compound fertilizer; the flora activity promotes the release and absorption of multi-element carbon source nutrients, and the fertilizer efficiency of the microbial blended fertilizer is effectively prolonged, so that the rice quality improvement and yield increase are promoted.
Owner:SHANGHAI HOARLLY AMP