61results about How to "In line with the principles of green chemistry" patented technology

The invention relates to a method of preparing vegetable oil polylol by using natural renewable resources. Epoxy soybean oil, a solvent, methanol, water and a catalyst are added performed autoclave, wherein, the proportion by weight of the epoxy soybean oil, the solvent, anhydrous methanol, water and the catalyst is 10:1 to 10:1 to 12:1 to 6:1 to 4, the reaction temperature ranges from 100 DEG C to 160 DEG C, and the optimized temperature ranges from 120 DEG C to 160 DEG C. The reaction pressure is self pressure, and the reaction is completed after reacting for 12 to 20 hours through stirring. The method has the advantages of no pollution, simple processing procedure after the reaction, and mild reaction conditions.

The invention discloses a method for preparing fatty acyl potassium glycine and a composition containing the surfactant, and belongs to the technical field of fine chemical engineering. According to the technique for synthesizing a fatty acyl potassium glycine type surfactant, fatty acid methyl ester of a natural fat resource is taken as a raw material for synthesizing the fatty acyl potassium glycine type surfactant, that is, fatty acid methyl ester and potassium glycine react in the presence of a phase shifting catalyst PEG2000 to prepare fatty acyl potassium glycine and the composition containing the surfactant. The method is high in raw material utilization rate, high in yield, high in active matter content, high in surface activity, simple in synthesis route, and free of environment pollution and is a green synthesis technique, and products can be directly used without being separated or purified. The invention further discloses a surfactant composition containing the fatty acyl potassium glycine.

The invention discloses a method for preparing oil-acyl lysine sodium and a composition comprising the surfactant through phase-transfer catalysis, belonging to the technical field of fine chemical engineering. According to the technology for synthesizing an oil-acyl lysine sodium type surfactant provided by the invention, oil and lysine sodium are reacted to generate the oil-acyl lysine sodium in the presence of phase-transfer catalysts PEG8000. The method is high in yield and high in raw material utilization rate, the phase-transfer catalysts PEG8000 refer to matrix raw materials and active ingredients of detergents, cosmetics and medicines and has the effects of regulating the viscosity, stabilizing and moisturizing, the product does not need to be separated and purified and can be directly used, the product is a composition of acyl lysine sodium homolog of different carbon chains, the surfactant combination principle is met, the synergistic effect can be achieved, the content of active matters is high, the surface activity is high, the synthetic route is simple, the pollutants are avoided, and the method is an environment-friendly synthetic method. The invention also discloses a surfactant composition comprising the oil-acyl lysine sodium.

The invention discloses a method for preparing an N-fatty acyl group amino acid compound. The method is characterized in that fatty acid methyl ester and amino acid sodium serve as raw materials, the one-step synthesis method is adopted under the action of a metallic oxide catalyst, an N-fatty acyl group amino acid sodium surface active agent is compounded, and the mole ratio of the raw material of fatty acid methyl ester to the raw material of amino acid sodium is 1.2-1.8 to 0.7-1. The proportion of the raw materials is appropriate; basically, no by-product is produced; the product synthetic ratio reaches up to 87 percent or more, the purity is high, the problems that in a traditional acyl chloride method, a large amount of waste acid is produced and needs to be processed, the operation technology is complex, and the raw material of PCl3 is large in irritation, and the method conforms to the green chemistry principle. The dosage of the catalyst is reasonable; by means of the catalyst, the production efficiency is greatly improved in the preparing process, the production procedure is shortened, the product quality is improved, and good products can even be directly used as raw materials of the pharmaceutical industry.

The invention provides a novel method for preparing silver-rhodium nanoparticles and belongs to the technical field of nano synthesis methods. Graphene quantum dots are utilized to prepare the silver-rhodium bimetallic nanoparticles, the operation is simple, reaction conditions are mild, and the prepared bimetallic nanoparticles are very stable, small in particle size and good in monodispersity performance, wherein the particles size of the nanoparticles is just a few nanometers. The prepared silver-rhodium bimetallic nanoparticles have better catalytic performance than silver nanoparticles and rhodium nanoparticles. The stable bimetallic nanoparticles are prepared by using an aqueous solution of the graphene quantum dots first and then adding a sodium borohydride aqueous solution and a mixed aqueous solution of silver nitrate and rhodium nitrate. The prepared bimetallic nanoparticles are dispersed in a clear and transparent solution.

The invention relates to a preparative method of anion surfactant of IgeponA series belongs to the technical field of organic compound synthesis. By mixing fatty acyl chloride, fatty acid and hydroxyethyl sodium dithionite, reacting in a normal-pressure reaction apparatus in a heated manner, the product is produced. The invention adopts a few HCI produced in the reaction as the catalyst to speed up the reaction and reduce the irritant property of the product as well as the contact of the organic salt. The odor and the color of the product are thin. With wide application range, the invention is consistent with the basic principle of green chemistry.

The present invention discloses a method for preparing 1,2-pentanediol by using xylose as a raw material through catalytic hydrogenation. According to the method, a supported Rh or Pd based hydrogenation catalyst is used, water is adopted as a solvent, and xylose is converted at a temperature of 80-180 DEG C in a 0.5-10 MPa hydrogen atmosphere to generate 1,2-pentanediol, wherein xylose is a biomass resource with the wide source. According to the present invention, the xylose is adopted as the raw material so as to well solve the problem of the difficult source of the C5 component; and the used xylose aqueous solution can be the hydrolyzate of corn cobs, bagasse, cotton seed hulls and the like, such that the production cost can be further reduced, and the maximum yield can achieve 46%.

The invention discloses a nicosulfuron preparation method. According to the invention, in an organic solvent, 2-sulfonyl chloride-N,N-dimethyl nicotinamide and sodium cyanate are subjected to a reaction for 2-10h under stirring under the existence of organic alkali and under a temperature of 10-50 DEG C; 2-amino-4-dimethoxy pyrimidin is added, and a reaction is carried out for 0.5-5h under stirring under an environmental temperature, such that nicosulfuron is obtained. According to the invention, sodium cyanate is subjected to a reaction with 2-sulfonyl chloride-N,N-dimethyl nicotinamide to produce corresponding isocyanate, and isocyanate is subjected to a condensation reaction with 2-amino-4-dimethoxy pyrimidin. The synthetic route has the advantages of mild reaction condition, low cost, high yield, and high purity. The intermediate is not needed to be separated, and reaction period is short, such that the method is suitable for industrialized productions. The method also has the advantages of low toxicity and no environment pollution, such that the method satisfies a green chemistry principle.

The invention discloses a permanent antibacterial polyether sulfone membrane material and a preparation method thereof. According to the invention, through a Co-gamma radiation grafting chemical modification method, a unsaturated bond-containing ionic liquid connected by chemical bonds is uniformly distributed on the surface of polyethersulfone, wherein a mass ratio of the ionic liquid to the polyethersulfone is 2-11:100; according to the method, through radiation irradiation, the ionic liquid of the blended flat plate membrane is connected to the polymer through the chemical bond; and due togood compatibility between the polymer and the ionic liquid, the small molecules of the ionic liquid can fully contact the polymer during radiation irradiation, so that the small molecules of the ionic liquid are grafted to the PES molecular chain.

The invention discloses a method for preparing fatty acyl sodium methionine and a composition comprising the surfactant, and belongs to the technical field of fine chemical engineering. The technology for synthesis of the fatty acyl sodium methionine surfactant provided by the invention is characterized in that the fatty acyl sodium methionine surfactant is synthesized by taking fatty acid methyl ester from a natural grease source as a raw material, namely, fatty acyl sodium methionine and the composition comprising the surfactant are prepared from the fatty acid methyl ester and the sodium methionine in the presence of a phase transfer catalyst PEG 1500. According to the method disclosed by the invention, the raw material utilization rate is high, the yield is high, the product can be directly used without being separated and purified, the active substance content is high, the surface activity is high, the synthetic route is simple, the environment is not polluted, and therefore, the method is a clean production technology. The invention further discloses a surfactant composition comprising the fatty acyl sodium methionine.

The invention discloses a flame-retardant antibacterial plastic sleep mat which comprises a sleep mat body, wherein the sleep mat body is composed of warps and wefts in a woven manner; the wefts are plastic tubes which comprise the following components in parts by weight: 70-80 parts of polypropylene granules, 10-15 parts of polyethylene, 5-10 parts of a flame retardant, 5-10 parts of limestone, 3-5 parts of vanadium carbide and 3-5 parts of color master batch; the flame retardant comprises the following components in parts by weight: 50-60 parts of triphenyl phosphate, 5-10 parts of graphene, 5-10 parts of lanthanum oxide, 5-10 parts of nanometer aluminum oxide, 3-5 parts of nanosilicon dioxide, 10-20 parts of starch and 3-5 parts of chitosan. The combustion length of the plastic tube of the sleep map is less than 60mm, and the inhibition rate of the flame-retardant antibacterial plastic sleep mat upon escherichia coli and trichoderma sp is up to 99.9% or greater.

The invention discloses a method for preparing epoxy soybean oil-based polyalcohol from epoxy soybean oil, comprising the following steps of: adding the epoxy soybean oil, absolute methanol, solvent, water and a catalyst into an autoclave; introducing nitrogen gas and evacuating, raising the temperature to 100-160DEG C at the temperature-raising speed of 2-10DEG C/min; and reacting at the reaction pressure of self-generated pressure for 12-20h to obtain a product; filtering after reaction to obtain the catalyst; and carrying out vacuum distillation to obtain the solvent, the methanol and theepoxy soybean oil-based polyalcohol, wherein the catalyst obtained by filtering and the solvent and the methanol which ate obtained by distillation are directly used for next reaction and the recycling can be realized. The invention has the advantages of no pollution, mild reaction conditions and simple post treatment.

Environmentally friendly degradable fibers and a preparing method thereof are disclosed and relate to the field of degradable fibers. Raw materials of the fibers include, by weight, 80-100 parts of polylactic acid, 20-30 parts of straw fibers, 10-18 parts of tert-butyl peroxyacetate, 5-12 parts of an antibacterial agent, 3-10 parts of an isocyanate compatilizer, 6-15 parts of acetic anhydride, 3-8parts of tert-butyl alcohol, 12-25 parts of glycerol, 2-6 parts of an antioxidant and 0.2-1.5 parts of a light stabilizer. The antibacterial agent includes copper citrate, copper rosinate, sodium silicate, nanometer silica and attapulgite. The method includes a step of preparing the antibacterial agent, a mixing and fusing step, and a granulation and spinning step. The raw materials of the degradable fibers are safe and nontoxic, and a process is simple and reasonable. The degradable fibers have excellent resilience, crease resistance, antibacterial performance, heat insulating ability and degradability and are suitable fabrics of down jackets and other clothes.

The invention discloses a tetra-coordinated N,N-dimethylformamide compound with 8-aminoquinoline as bidentate ligand. The preparation method comprises the following steps: uniformly stirring an 8-aminoquinoline derivative I, potassium trifluoroborate II, alkali, an additive and an accelerant in a reaction solvent and then carrying out reacting at 110-140 DEG C for 24 hours; or uniformly mixing andstirring an 8-aminoquinoline derivative IV, potassium trifluoroborate II, acyl chloride V, alkali and the accelerant in the reaction solvent, and then carrying out reacting at 110-140 DEG C for 24 hours. The raw materials are good in stability and easy to obtain, reaction operation is simple, high-selectivity preparation of the tetra-coordinated N,N-chelated double-base compound can be realized,reaction yield is high, the compatibility of reaction condition functional groups is high, and the application scope of substrates is wide. The reaction conditions can be further simplified, the conversion of the three components by a one-pot method is realized, and the overall atomic efficiency and economy of synthesis are further improved.

The invention discloses a method for synthesizing 4-methyl-2-benzothiazolehydrazine. The method comprises the following steps: carrying out synthesis reaction on o-toluidine and thiocyanate in acid toobtain o-tolylthiourea; carrying out a synthesis reaction on the o-tolylthiourea and a catalyst in water to obtain 2-amino-4-methylbenzothiazole; and carrying out a synthesis reaction on the 2-amino-4-methylbenzothiazole in hydrazine hydrate, so as to obtain the 4-methyl-2-benzothiazolehydrazine. The method for synthesizing the 4-methyl-2-benzothiazolehydrazine, provided by the invention, is simple to operate, less in three wastes, capable of repeatedly applying wastewater, high in product content, good in quality and suitable for industrial mass production.

The invention discloses preparation of a Fe-doped OMS-2 catalyst and application of the Fe-doped OMS-2 catalyst in degradation of organic pollutants. The Fe-OMS-2 catalyst is prepared by simply refluxing, filtering, washing, drying and calcining a mixed solution of manganese sulfate, ferric nitrate, concentrated nitric acid and potassium permanganate. The prepared catalyst can catalyze a peroxymonosulfate to generate sulfuric acid free radicals and hydroxyl free radicals. Sulfate free radicals and hydroxyl free radicals have strong oxidizing property and can oxidize and degrade organic dyes, and the catalyst can be recycled through simple filtration and washing after reaction. The preparation method of the catalyst is simple, and the obtained catalyst can continuously and efficiently activate peroxymonosulfate for multiple times at room temperature to degrade organic pollutants, can be recycled and reused after reaction, conforms to the concept of green development, and has great application prospects in the field of industrial sewage treatment.

The invention discloses a method for preparing grease acyl sodium leucine and a surface active agent composition containing the grease acyl sodium leucine in a phase-transfer catalysis way, and belongs to the technical field of fine chemical engineering. According to a technology provided by the invention for synthesizing a grease acryl sodium leucine-type surface active agent, grease and sodium leucine react in the existence of a phase-transfer catalyst PEG800 to generate the grease acryl sodium leucine. The method is high in yield and high in raw material utilization rate, the phase-transfer catalyst PEG800 is prepared by adopting matrix raw materials and active components such as a washing agent, cosmetics and medicines and plays a role in adjusting viscosity, stabilizing, moistening and the like, a product does not need to be separated and can be directly used, the product is a composition of different carbon-chain acryl sodium leucine homologous series and conforms to a surface active agent compounding principle, a synergistic effect can be realized, the content of active matters is high, the surface activity is high, the synthesis route is simple, no pollutant is produced, and the preparation method is environmentally friendly. The invention also relates to the surface active agent composition containing the grease acryl sodium leucine.