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78results about How to "Suitable for the needs of industrial production" patented technology

Polymer solid-state electrolyte material and preparation method therefor

The invention discloses a polymer solid-state electrolyte material and a preparation method therefor. The polymer solid-state electrolyte material is an organic-inorganic hybridized and crosslinked polymer solid-state electrolyte material which is prepared by performing ultraviolet light irradiation and crosslinking on reaction raw materials, wherein the reaction raw materials comprise silicon dioxide nanoparticles grafted with sulfydryl on the surface and double-band end-capped polyethylene glycol at the mass ratio of 1 / 2 to 1 / 20; and in addition, the content of sulfydryl component in the silicon dioxide nanoparticles grafted with sulfydryl on the surface is 1-50wt.%. By means of improvement of the whole technological process, the reaction conditions in each step and the like in the key preparation process, the organic-inorganic hybridized and crosslinked polymer solid-state electrolyte material is correspondingly formed; and compared with the prior art, the ionic electrical conductivity and mechanical performance of the composite electrolyte can be improved at the same time.
Owner:HUAZHONG UNIV OF SCI & TECH

Thermal treatment process for high-strength anticorrosion aluminum alloy

The invention provides a thermal treatment process for a high-strength anticorrosion aluminum alloy and belongs to the technical field of thermal treatment of aluminum alloy materials. The thermal treatment process includes the following specific steps that the aluminum alloy deformed through hot extrusion is subjected to low-speed temperature-rising solution treatment and then subjected to three-level aging treatment; in the three-level aging process, the temperature rises to 120 DEG C from the room temperature at the temperature rising speed of 50 DEG C / h to 70 DEG C / h, and then the temperature is kept for 24 hours; then the temperature rises to 170 DEG C to 190 DEG C from 120 DEG C at the temperature rising speed of 50 DEG C / h to 70 DEG C / h with a furnace, then the temperature is kept for 40 min to 120 min, and then the alloy is cooled to the room temperature; and finally, the temperature of the obtained alloy rises to 120 DEG C from the room temperature at the temperature rising speed of 50 DEG C / h to 70 DEG C / h, then the temperature is kept for 24 hours, and then the alloy is cooled to the room temperature. By the adoption of the thermal treatment process, the anticorrosion performance of the alloy is improved on the premise of guaranteeing the strength, low-speed temperature rising in the solution and aging processes is more beneficial to diffusion of atoms, the purpose that large thick components are uniformly heated is more easily achieved, and the thermal treatment process is more suitable for industrial production.
Owner:BEIJING UNIV OF TECH

Levain flavoring agent and preparation method thereof

The invention discloses a levain flavoring agent and a preparation method thereof. The preparation steps comprise: 1) fermenting dough; 2) drying the fermented dough can smashing into gains, adding a bit amount of dietary alkali, acid and / or flavoring substances. The preparation method of levain flavoring agent provided in the invention is simple in method and easy to operate, the obtained products can be used for processing fermented flour products such as steamed bun and the like, so that the intrinsic flavor of the traditional levain fermenting method can be obtained in making flour products by yeast fast fermenting method, thus being suitable for industrialized production, improving production efficiency and better satisfying needs of people.
Owner:ANGELYEAST CO LTD

Polyhedral oligomeric silsesquioxane-polyethylene glycol polymer solid electrolyte material and preparation method thereof

The invention discloses a polyhedral oligomeric silsesquioxane-polyethylene glycol polymer solid electrolyte material and a preparation method thereof. The preparation method comprises the following steps: dissolving trimethoxy silane and concentrated hydrochloric acid in an organic solvent with polarity of 5-7, conducting stirring and polymerizing at a controlled temperature to obtain polyhedraloligomeric silsesquioxane with a surface grafted with sulfydryl, further conducting process to obtain pure polyhedral oligomeric silsesquioxane with a surface grafted with sulfydryl, blending the purepolyhedral oligomeric silsesquioxane with a surface grafted with sulfydryl and polyethylene glycol with a single-side double-bond end-capped, adding a photoinitiator and lithium salt into the blend,and performing cross-linking polymerization by ultraviolet irradiation to obtain the polymer solid electrolyte material. According to the invention, the whole process flow of the key preparation process, the reaction conditions of each step and the like are optimized to form an organic block polymer solid electrolyte material; compared with the prior art, the ionic conductivity and the mechanicalproperty of the electrolyte material are improved; the preparation process is simple and easy to implement; and no pollution is generated by ultraviolet polymerization.
Owner:LUOYANG INST OF SCI & TECH

Low temperature alkaline pectinase mutant with improved specific activity and thermal stability

The invention discloses a low temperature alkaline pectinase mutant with the improved specific activity and thermal stability. The mutant has an amino acid sequence shown in SEQ ID NO.1, or an amino acid sequence with low temperature alkaline pectin lyase activity obtained by deletion, replacement, insertion or / and addition of conserved mutations of one to several amino acids on the basis of the amino acid sequence shown in SEQ ID NO.1. The mutant can greatly improve the specific activity and thermal stability, and is more suitable for industrial production in the fields such as textile degumming and washing and meets the needs of social production.
Owner:HUBEI UNIV

Solid phase polymerization process for preparing ethylene telephthalate and aromatic diamine copolymer

The present invention relates to solid phase polymerization process for preparing ethylene terephthalate and aromatic diamine copolymer. The copolymer is prepared with polyethylene terephthalate as aromatic diamine monomer in certain ratio, and through the first mixing, extruding and pelletizing in a double screw extruder, slicing and drying, and the subsequent solid phase condensation polymerization inside a solid phase polymerization reactor to obtain the copolymer through the ester exchange reaction between the monomer and polyethylene terephthalate. The present invention introduces aromatic diamine into the main chain of polyethylene terephthalate to make the copolymer possess the advantages of both polyester and polyamide. The preparation process is simple and suitable for industrial production.
Owner:DONGHUA UNIV

Carbohydrate supplementing method in fermentation process of mycophenolic acid

The invention belongs to the field of biological fermentation, more particularly relates to a method for realizing the purpose of producing high-density mycophenolic acid through continuously or intermittently supplementing high-density solution of monosaccharide, disaccharide or polysaccharide into a fermentation liquor to culture penicillium brevicompactum. In the method, high-density solution of monosaccharide, disaccharide or polysaccharide is supplemented as a supplementary carbon source during the fermentation process of mycophenolic acid in a basic culture medium which takes glucose asa carbon source. The carbohydrate supplementing method in the fermentation process provided by the invention is easy to be operated and implemented, can improve the fermentation titer by 80-100 percent, and is very applicable to the demands of industrial production.
Owner:SHANDONG NEWTIME PHARMA

Pea seedling cultivation method

The invention relates to a pea seedling cultivation method. The pea seedling cultivation method includes the particular steps that fresh green peas yielded in the current year or stored for a year are selected and soaked, before being sown, the selected seeds are soaked in hot water at the temperature of 50 DEG C-55 DEG C for 15 min under the condition of continuous stirring, when the water temperature falls to 25 DEG C, 500-fold liquid organic fertilizer is added into the water, and the seeds continue to be soaked for 5-6 h; the seeds are fished out, wrapped by wet cloth and germinated at the temperature of 20 DEG C-25 DEG C; sowing can be implemented when about 70% of the seeds bud; plastic seedling trays for cultivation or iron tray formed by welding tinplate are selected, during the cultivation stage, the indoor air humidity should be kept at about 80-85%, the temperature should be kept at 15 DEG C-20 DEG C, and therefore seedlings normally grow and develop easily. The cultivation method is summed up by agro-technicians through multiple practices, and is environmentally-friendly, free from pollution, low in cost, and suitable for requirement of industrial production, and the yield is higher than that of a common method by 2-3 times.
Owner:贵州茅台流域东升农场有限公司

Carbon-based electrode material, preparation method of carbon-based electrode material and energy storage device

The invention provides a carbon-based electrode material, a preparation method of the carbon-based electrode material and an energy storage device. The preparation method of the carbon-based electrode material comprises the following steps: a) performing heat treatment on pine needles in an inert atmosphere to obtain a first carbon-based electrode material; b) mixing the first carbon-based electrode material obtained in the step a) with an alkaline substance to obtain a mixture; and c) chemically activating the mixture obtained in the step b) under an insert atmosphere to obtain a second carbon-based electrode material. According to the preparation method of the carbon-based electrode material, the pine needles are adopted as a raw material, so that the raw material is cheap and available; the first carbon-based electrode material can be obtained by performing heat treatment on the pine needles; the obtained first carbon-based material is mixed with the alkaline substance and then chemically activated to obtain the second carbon-based electrode material. The preparation method of the carbon-based electrode material is simple in step, easily-controllable in operation process, low in energy consumption and applicable to the needs of industrial production. The carbon-based electrode material can serve as an electrode of the energy storage device.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Cell culture medium for improving antibody purity and cultivation method

The invention relates to the field of biotechnology, in particular to a cell culture medium for improving antibody purity and a cultivation method, discloses a self-made feeding culture medium, and the culture medium contains 90mM to 500mM cysteine, and further provides a cell cultivation method. The cell cultivation method comprises the following steps: mammalian cells containing encoded antibody nucleic acid are inoculated into a basal culture medium; after the cells enter into a cellular proliferative stage, the self-made feeding culture medium is added; and cell density is monitored and incubation time is adjusted. By controlling the concentration of the cysteine in the self-made feeding culture medium, the adding moment and the adding quantity, the antibody purity can be improved remarkably, while the antibody purity is improved, the antibody expression quantity and normal glycosylation level can be maintained, and the antibody efficacy is ensured.
Owner:SUNSHINE LAKE PHARM CO LTD

Preparation method of paliperidone palmitate

The invention belongs to the technical field of medicines and relates to a preparation method of paliperidone palmitate. The method disclosed by the invention comprises the step of precipitating paliperidone palmitate in a mixed solvent of dichloromethane and n-heptane. Paliperidone palmitate particles obtained by the invention are small in particle sizes, flaky, easy to homogenize and grind, andshort in grinding time, have little damage to instruments and equipments, and are short in crystallization time, high in yield and free of solvent residues and particularly suitable for needs of industrial production.
Owner:CHIA TAI TIANQING PHARMA GRP CO LTD +1

Water-borne acrylic primer and preparation method thereof

The invention discloses water-borne acrylic primer and a preparation method thereof. The water-borne acrylic primer comprises, by weight, the following components of 25-35 parts of modified acrylic resin, 15-25 parts of amino resin, 2-8 parts of titanium dioxide, 3-9 parts of 2-methyl-1,3-propanediol, 5-15 parts of filler, 2-7 parts of a pH regulator, 4-12 parts of a defoaming agent, 4-10 parts of a dispersing agent and 20-30 parts of deionized water. The prepared water-borne acrylic primer can effectively prevent finishing coat from being eroded by wall body soluble substances, and the quality of the finishing coat is improved. No organic solvent is contained, no solvent evaporates during solidification, and the anti yellowing effect and the weather resistance are good. The preparation method of the water-borne acrylic primer has the advantages that the technology is simple, no special post-processing is needed, the cost is low, and the preparation method of the water-borne acrylic primer is suitable for requirements of industrial production.
Owner:黎司华

Ultraviolet-curable polysiloxane and preparation method and application thereof

The invention discloses ultraviolet-curable polysiloxane and a preparation method and application thereof. According to the ultraviolet-curable polysiloxane, Si-O-Si is taken as a main chain, and a branched chain contains an aromatic group, a photocuring group and a symmetrical episulfide group modified organosilicon material. The ultraviolet-curable polysiloxane disclosed by the invention not only has high refractive index and light transmittance, does not have pungent smell and has good compatibility with organosilicon polymers, but also has good elongation at break, excellent storage stability and mechanical properties. Meanwhile, the polysiloxane has a photoactive group, and can further react to obtain a polysiloxane material with high refractive index and mechanical property, the luminous efficiency of the polysiloxane material is improved, a heat packaging process commonly applied at present is changed, the industrial efficiency is improved, and the ultraviolet-curable polysiloxane can be widely applied to the fields of flexible optical fibers, optical lenses, optical coatings, flexible display screens and the like with high requirements on optical materials.
Owner:GUANGDONG UNIV OF TECH

Special flour for fried glutinous rice balls with sesame seeds, as well as making method and application of special flour

The invention belongs to the field of food processing, and relates to special flour for fried glutinous rice balls with sesame seeds, as well as a making method and an application of the special flour. The special flour for the fried glutinous rice balls with sesame seeds is made from, in parts by weight, a main material 1 such as 100 parts of raw glutinous rice flour, a main material 2 such as 50-300 parts of cooked flour and auxiliary materials such as 5-100 parts of long-shaped rice flour, 1-20 parts of wheat flour, 10-100 parts of white sugar powder and 0.1-3 parts of a fermenting agent. The making method comprises the following step of pasting the raw material of the main material 2. When the special flour for the fried glutinous rice balls with sesame seeds disclosed by the invention is used, only an appropriate amount of water needs to be added, and the special flour is convenient to use.
Owner:HUAZHONG AGRI UNIV

Novel processing tool for graphite carbon plate of proton exchange membrane fuel cell

The invention relates to a novel processing tool for a graphite carbon plate of a proton exchange membrane fuel cell. The novel processing tool comprises a vacuum sucker bottom plate (1) and a vacuum sucker panel (2). Four corners of the vacuum sucker bottom plate (1) are provided with four special positioning pins (4) used for positioning the vacuum sucker panel (2), the front face of the vacuum sucker panel is provided with a channel slot I5, the back face of the vacuum sucker panel is provided with a channel slot II6, and two sides of the vacuum sucker panel are provided with two pneumatic connectors (3). The processing tool is characterized in that a graphite carbon plate to be processed is adsorbed to be tightly attached to the vacuum sucker panel (2) and is positioned by the special positioning pins (4). A hydrogen plate and an air plate are processed on one vacuum sucker. During processing, the hydrogen plate and the air plate are constrained mutually, and the productivity can be improved. Meanwhile, the vacuum sucker is designed to separate channels for processing the hydrogen plate and the air plate, and thus gas leakage of different channels in processing can be avoided.
Owner:JIANGSU BINGCHENG HYDROGEN ENERGY TECH CO LTD

Preparation method of paliperidone palmitate suspension

The invention discloses a preparation method of a paliperidone palmitate suspension. The preparation method comprises the following steps of (1) dispersing and dissolving paliperidone palmitate drug particles in a first water-soluble good solvent containing a surfactant to obtain a drug solution; and (2) slowly adding the drug solution into a second water-soluble solvent, simultaneously adding energy to enable the drug particles to be rapidly precipitated, and performing resuspending to obtain the suspension. According to the invention, complex equipment is not needed, the preparation processis simple, and the problem of metal medium or organic solvent residues is avoided.
Owner:ZHEJIANG SUNDOC PHARMA SCI & TECH CO LTD

Sky wheel type steel wire rope ring automatic welding device

The invention discloses a sky wheel type steel wire rope ring automatic welding device which comprises a base, supporting rods, a rotating shaft, a wheel body and a steel wire rope ring locating lamp.The supporting rods are fixed to the two sides of the base. The two ends of the rotating shaft are installed at the upper ends of the supporting rods correspondingly. The wheel body is installed on the rotating shaft in a sleeving manner. A rotating shaft drive installing portion is arranged on the portion, located between the wheel body and the rotating shaft installing base, of one side of therotating shaft. The wheel body comprises symmetrical discs, and disc connecting rods which are uniformly arranged along the circumference face of each disc in a radial structure. Installing holes areformed in the end portions of the disc connecting rods. A fixing shaft used for fixing the steel wire rope ring locating clamp is connected between the opposite connecting rods on the two discs through the installing holes in the end portions of the connecting rods. The steel wire rope ring locating clamp is installed on the fixing shaft and provided with a steel wire rope ring locating groove. According to the automatic welding device, 360-degree all-position welding of a steel wire rope ring connector is achieved by the adoption of a mechanical hand, the assembling and disassembling link isreduced, the welding quality and convenience are improved, the production efficiency is improved, and the automatic welding device is suitable for needs of mass production.
Owner:HUBEI UNIV OF AUTOMOTIVE TECH

Novel processing tool for graphite carbon plate of proton exchange membrane fuel cell

The invention relates to a novel processing tool for a graphite carbon plate of a proton exchange membrane fuel cell. The novel processing tool comprises a vacuum sucker bottom plate (1) and a vacuum sucker panel (2). Four corners of the vacuum sucker bottom plate (1) are provided with four special positioning pins (4) used for positioning the vacuum sucker panel (2), the front face of the vacuum sucker panel is provided with a channel slot I5, the back face of the vacuum sucker panel is provided with a channel slot II6, and two sides of the vacuum sucker panel are provided with two pneumatic connectors (3). The processing tool is characterized in that a graphite carbon plate to be processed is adsorbed to be tightly attached to the vacuum sucker panel (2) and is positioned by the special positioning pins (4). A hydrogen plate and an air plate are processed on one vacuum sucker. During processing, the hydrogen plate and the air plate are constrained mutually, and the productivity can be improved. Meanwhile, the vacuum sucker is designed to separate channels for processing the hydrogen plate and the air plate, and thus gas leakage of different channels in processing can be avoided.
Owner:JIANGSU BINGCHENG HYDROGEN ENERGY TECH CO LTD

Preparation method of high-solubility aflatoxins-removed rice bran protein

The invention discloses a preparation method of high-solubility aflatoxins-removed rice bran protein. The preparation method comprises the following steps of degreasing aflatoxins polluted rice bran as a raw material, crushing the degreased aflatoxins polluted rice bran, screening the crushed aflatoxins polluted rice bran, mixing the screened aflatoxins polluted rice bran with a weak alkali solution, regulating pH to be 8.0-9.0, and performing stirring and mixing for 30-60 minutes so as to obtain a mixed solution; performing jetting and cooking treatment on the obtained mixed solution, then regulating pH to be 6.00, adding excess alpha-amylase and cellulase, performing hydrolysis at 40-60 DEG C to remove impurities including starch, fibers and the like, and performing centrifugal residual removal so as to obtain supernatant; and performing acid precipitation on the supernatant to produce white protein precipitate, performing enzyme deactivation, performing centrifugation, collecting protein precipitate, performing washing with water, and performing drying so as to obtain the rice bran protein. Through the adoption of the method disclosed by the invention, aflatoxins B1 in rice bran can be efficiently removed, the denaturation effect of strong basicity to protein and the bringing of a great quantity of sodium salt ions can be effectively avoided, the high-solubility aflatoxins-removed rice bran protein is mild and free from irritants, the utilization rate of the rice bran protein is high, and the prepared rice bran protein can be applied to clinical nutrients, weight-reducing health-care products, beverage making products and food auxiliary materials.
Owner:SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI

Aquo-chromium-free surface treatment liquid for galvanized steel plate

The invention relates to an aquo-chromium-free surface treatment liquid for a galvanized steel plate. The treatment liquid is characterized by comprising A) ethanolamine titanate, B) a mixed silane coupling agent, C) Zr<2+>, Ce<3+>, Mo<6+>, divalent or high-valence metal ions and D) deionized water. A usage method of the surface treatment liquid is as below: roller coating, dip coating, spraying coating or scraping coating is employed to fully immerse the treatment liquid with the galvanized plate; and the galvanized plate is cured at 60-80 DEG C for 10-20 S by a drying device.
Owner:CHINA NAT OFFSHORE OIL CORP +1

High-precision drilling multi-pore clamping device

The invention relates to a high-precision drilling multi-pore clamping device which comprises a bottom plate, a drill bushing bracket and one group of drill bushing, wherein a vertical slab is arranged on the bottom plate, a positioning block is fixedly arranged on the bottom plate at the right side of the vertical slab, a workpiece positioning region is formed between the positioning block and the vertical slab, the drill bushing bracket is arranged at the upper part of the vertical slab, and one group of drill bushing positioned above the workpiece positioning region is arranged on the drill bushing bracket. The high-precision drilling multi-pore clamping device has the advantages of simple structure, scientific design, simpleness in use, capability of completing multiple procedures through once clamping, high machining speed, high efficiency, high precision and the like.
Owner:天津市臣涛精密机械设备有限公司

Distilled system for liquor distillation

The invention discloses a distilled system for liquor distillation. The system includes a distilling barrel and a condensing device. The condensing device comprises a condensing pool; at least one condenser is uniformly arranged in the condensing pool in ring shape; the distilling barrel corresponding to each condenser is arranged outside the condensing pool; a steam pipe is connected between the distilling barrel and the corresponding condenser; and the bottom of the condensing pool is provided with a water inlet, and the top of the condensing pool is provided with a water outlet. The distilling barrel comprises a bottom pot, a barrel body and a distilling cover. The distilling cover is provided with an apron plate with outer diameter smaller than the inner diameter of the barrel body and to prevent condensate liquid from entering a water seal structure. The condenser comprises a steam buffer chamber and a condensate liquid collecting chamber; a condensing unit is arranged between the steam buffer chamber and the condensate liquid collecting chamber; the condensing unit includes a spiral condenser pipe; the spiral condenser pipe comprises two straight condenser pipes; a spiral condenser pipe is connected between the two straight condenser pipes; a condensing medium pipe sheaths outside the spiral condenser pipe; and the condensing medium pipe and straight condenser pipes are correspondingly provided with condensing medium straight pipes, and the condensing medium pipe and the spiral condenser pipe are correspondingly provided with a spiral medium pipe.
Owner:CHONGQING ANTAO WINE IND

Boiler capable of preventing biomass coking

The invention discloses a boiler capable of preventing biomass coking. The boiler comprises an air distribution chamber, a chain grate stoker, a steam conveying pipe, a steam manifold, a reducing valve, a pressure gage and steam outlet holes; the air distribution chamber is arranged below the chain grate stoker, and the steam conveying pipe is arranged at the position, above an air distribution bend, of the air distribution chamber, and is fixed to an inclined lateral wallboard of the air distribution chamber through a support; the steam conveying pipe is connected with the steam manifold through the reducing valve; the pressure gage is further installed at the position, in front of the air distribution chamber, of the steam conveying pipe and is located at the front end of the reducing valve; and the steam outlet holes are arranged at the positions, located inside the air distribution chamber, on the steam conveying pipe and face a main burning area of the chain grate stoker, and steam can rapidly reach portions needing to be cooled. The boiler capable of preventing biomass coking includes two steps of feeding burning and steam leading in. According to the method, the air distribution chamber is combined with steam conveying, the structure is compact, using is simple and convenient, biomass burning coking is effectively prevented, the burn-off rate is improved, the cost is reduced, and the method is suitable for industrial production.
Owner:青岛青义锅炉有限公司

Preparation process of compound preparation of amino oligosaccharin and bacillus

The invention discloses a preparation process of a compound preparation of amino oligosaccharin and bacillus. The process comprises the following steps of obtaining a solid fermentation product by adopting a method of mixed fermentation of bacillus cereus and bacillus licheniformis, mixing the solid fermentation product uniformly with amino oligosaccharin as a plant growth regulator, humic acid and polyglutamic acid, in a certain ratio, and then drying by centrifugal atomization to obtain the compound preparation of the bacillus and the amino oligosaccharide. After applied to crops, the microbial agent not only can play a role in preventing and treating diseases to improve the stress resistance of the crops, but also can have a regulating effect on the growth of plants to greatly increasethe yield of the crops. The production process is simple, the equipment investment is small, and no residual pollution exists, so that the process has a relatively high application value.
Owner:NANJING UNIV OF TECH

Method for screening daptomycin high-producing strain by adopting sodium glutamate tolerance model

The invention discloses a method for screening daptomycin high-producing strain by adopting a sodium glutamate tolerance model, and aims to solve the problems that the raw materials of the culture medium in the existing method are less in source and high in cost, and the probability of improved daptomycin strains is small. The method comprises the following steps: (1) performing preliminary screening: diluting and coating a mutagenized monospore suspension liquid on an isolation culture medium with sodium glutamate tolerance amount of 150-200g / L to culture, picking and inoculating a single colony resistant to the sodium glutamate on an inclined surface culture medium to culture, then inoculating the single colony in a seed culture medium to culture after spores are produced on the inclined surface, inoculating the cultured single colony to a fermentation culture medium with different sodium glutamate contents to culture for 168 hours to pick out the bacterial strain with high titer; (2) re-screening, namely re-screening the preliminarily-screened bacterial strain, and picking out the bacterial strain with high titer; and (3) performing a fermentation culture medium test, namely performing the fermentation culture medium test on the bacterial strain with high tier to determine the optimal fermentation culture medium formula of the mutant strain.
Owner:SICHUAN INDAL INST OF ANTIBIOTICS CHINA NAT PHARMA GROUP CORP

Synthesis process of yellow dye of leather

The invention relates to a synthesis process of yellow dye of leather. The synthesis process comprises the following steps: proportioning; diazotizing; once coupling; twice coupling; mixing; and drying to produce a finished product; in detail, (1) screening a midbody which is primarily an environmental-friendly midbody without 24 carcinogenic aromatic amines; (2) enabling the midbody to have a corresponding molecular structure for synthesizing yellow dye; and (3) researching a reasonable synthesis process. Proved by repeated tests, the synthesis process is suitable for the needs of industrialized production.
Owner:HENAN CHENGTAI CHEM TECH
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