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.

This invention relates to a method for synthesizing sodium sarcosinate from methyl monoethanolamine. The method comprises: adding methyl monoethanolamine 100 parts with deionized water 150-300 parts, lye 100-200 parts and metal-modified Cu framework catalyst (200-400 mesh) 5-15 parts, performing catalytic dehydrogenation reaction at 120-200 deg.C and 0.5-1.5 MPa for 2-8 h. The method does not produce NaCl during reaction, thus has simple post-treatment, and can be used to prepare daily chemical and pharmaceutical products. Besides, the method is harmless to operators and environment. The byproduct H2 can be recycled. The raw material, methyl monoethanolamine, is a byproduct of methyl diethanolamine preparation.

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 invention relates to a preparation method of a cyclohexene catalytic oxidation cyclohexanone preparation reaction catalyst, which comprises the following steps: (1) a mesoporous material SBA-15 isprepared, wherein the mesoporous material SBA-15 can be synthesized according to a literature report method and can also be directly purchased; (2) surface modification is carried out on the SBA-15 by adopting a surface modifier to obtain aminated SBA-15; (3) surface modification is carried out on the aminated SBA-15 by adopting a ligand compound so as to introduce a pyridine ring, thereby obtaining modified SBA-15 of which the surface contains a stable chelate structure capable of being coordinated with metal; and (4) Pd is loaded on the modified SBA-15 obtained in the step (3) through coordination reaction to obtain the cyclohexene catalytic oxidation cyclohexanone preparation reaction catalyst. Compared with the prior art, the method has the advantages that the catalyst is easy to separate, recyclable, high in catalytic efficiency, capable of meeting the requirements of green chemistry and the like.

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 preparation of a ZIF-67 catalyst and application thereof to degradation of antibiotics such as tetracycline. The invention discloses preparation and application of a metal organic framework film for catalytically degrading antibiotics such as tetracycline. The preparation method comprises the following steps: dissolving Co(NO3)2.6H2O in methanol to prepare a Co(NO3)2 solution; dissolving 42-methylimidazole in methanol to prepare a 2-methylimidazole solution; dropwise adding a 2-methylimidazole solution into the Co(NO3)2 solution, performing stirring and standing for aging, centrifugally absorbing supernatant, and performing drying to obtain purple solid powder, wherein the prepared catalyst is difficult to degrade antibiotics, and tetracycline is effectively degraded by hydroxyl radicals generated under the oxidation condition of hydrogen peroxide. The hydroxyl free radicals have strong oxidizing property and can oxidize and degrade tetracycline. Compared with the prior art, the ZIF-67 catalyst prepared by the invention has the advantages of low metal dissolution, good reusability, simple and convenient operation process, wide pH application range and the like when being used for activating hydrogen peroxide, and has a wide application prospect in the field of degradation-resistant antibiotic treatment.

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 preparation of a Cu-doped OMS-2 catalyst and application of the Cu-doped OMS-2 catalyst to degradation of organic pollutants. The Cu-OMS-2 catalyst is prepared by refluxing, filtering, washing, drying and calcining a mixed solution of manganese sulfate, copper nitrate, concentrated nitric acid and potassium permanganate. The prepared catalyst is used for catalyzing and activating peroxydisulfate to generate sulfuric acid free radicals and hydroxyl free radicals with strong oxidizing property, so that organic dyestuff is efficiently oxidized and degraded, and the catalyst can be recycled after reaction. The preparation method of the catalyst is simple; the obtained catalyst can be used for efficiently catalyzing and activating hydrogen persulfate for multiple times at room temperature to generate sulfate free radicals and hydroxyl free radicals to degrade organic pollutants; the catalyst can be recycled and repeatedly used after reaction, the catalytic performance is not obviously reduced, the industrial cost can be greatly reduced, the green production principle is met, and the catalyst has a great application prospect in the field of organic wastewater degradation.

The invention relates to a method for preparing controllable photoluminescence carbon dots by changing temperature. The method comprises the following steps: mixing citric acid monohydrate with urea,pyrolyzing, cooling, adding deionized water, dissolving, centrifuging, filtering, purifying, and freeze-drying to obtain the carbon dots. According to the method, blue and green water-soluble carbon dot solid powder with different fluorescence emission and high yield is obtained by controlling the pyrolysis temperature and time, and the components are uniform.

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 relates to a novel catalytic system for preparing maleic anhydride through catalytic oxidation of 5-hydroxymethylfurfural. According to the system, the maleic anhydride is prepared through catalytic selective oxidation of 5-hydroxymethylfurfural by using a bismuth compound as a catalyst and molecular oxygen as an oxidizing agent. According to the system, the 5-hydroxymethylfurfural can be obtained from biomass such as carbohydrates. The system is mild in oxidizing reaction condition, is a novel catalyst system for preparing the maleic anhydride by catalyzing the 5-hydroxymethylfurfural and has an important application prospect.

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 a preparation method of a manganese oxide octahedral molecular sieve and application of the manganese oxide octahedral molecular sieve in degradation of organic pollutants. Thecatalyst is prepared by calcining, refluxing, filtering, washing and drying a mixed solution of manganese carbonate, potassium oxalate, concentrated nitric acid and potassium nitrate. The catalyst isused for catalyzing and activating peroxydisulfate to generate sulfate free radicals, hydroxyl free radicals, superoxide free radicals and non-free radical singlet oxygen with strong oxidizing property, so that organic dyes and antibiotics are efficiently oxidized and degraded, and the catalyst can be recycled after reaction. The obtained catalyst can efficiently catalyze and activate hydrogen persulfate for multiple times at room temperature to generate sulfate free radicals, hydroxyl free radicals, superoxide free radicals and non-free-radical singlet oxygen to degrade organic pollutants, can be recycled and repeatedly used after reaction, has no obvious reduction in catalytic performance, can greatly reduce the industrial cost, accords with a green production principle and has a greatprospect in the field of organic wastewater degradation.

The invention discloses a ruthenium-carbon catalyst, and a preparation method and an application thereof in synthesis of 1,2,4-cyclohexanetricarboxylic anhydride; the ruthenium-carbon catalyst takes metal ruthenium as an active component and takes activated carbon as a carrier, and the mass loading capacity of ruthenium is 0.5-2.5%. The preparation method of the monometal-loaded ruthenium-carbon catalyst is novel; the catalyst is high in catalytic activity, recyclable and reusable, and good in stability; ruthenium particles are small in particle size and uniformly dispersed; a stabilizer is not needed in the preparation process, that is, the reaction can be completed under the condition of high-pressure hydrogen; the reaction process is environment-friendly and pollution-free. Trimelliticanhydride can be hydrogenated in a water phase at a low temperature of 100-150 DEG C and under a low pressure of 4.0 MPa H2, preparation of cyclohexanetricarboxylic anhydride is completed, the cost islow, the conversion rate is as high as 97.5%, the selectivity is as high as 97.6%, the process is simple, the used solvent is water, and the method conforms to the principle of green chemistry.

The invention discloses a technology for preparing N-fatty acyl amino acid. The technology has an innovation point that fatty acid methyl ester and amino acid sodium are taken as the raw materials, under effect of a metal oxide catalyst, a one-step synthesis method is used, a N-fatty acyl amino acid sodium surfactant is synthesized, and the mol ratio of fatty acid methyl ester to amino acid sodium is 1.2-1.8:0.7-1. The proportion of the raw materials is appropriate, basically no by-product is generated, the product synthesis rate can reach as high as more than 87%, the purity is high, the problems of treatment of massive waste acids generated in traditional acyl chloride method, complex operation process, and large excitant performance of a raw material PC13 can be overcome, which accord with a green chemical principle. The catalyst amount is reasonable, the catalyst is used for greatly increasing the production efficiency during a preparation process, and shortens the production flow, so that the product quality is increased, and the good product can be directly used as a raw material for pharmacy industry.

The invention discloses a non-fluorescent organic small molecule compound, a pentamethine cyanine dye and application thereof. The pentamethine cyanine dye with wide biological application is directly synthesized through LED white light induction of the non-fluorescent organic small molecule compound without using a condensing agent and a photosensitizer, and the near-infrared fluorescent pentamethine cyanine functional dye with various structures can be obtained by changing the non-fluorescent organic small molecule compound. The non-fluorescent small organic molecule compound and human cervical cancer cells or human normal liver cells are co-incubated, and after LED white light illumination, the intracellular fluorescence enhancement can be achieved, and almost no fluorescence exists in the cells without illumination so that the synthesis method can be used for intracellular near-infrared fluorescence imaging, and the visible light regulation and control can be utilized, the near-infrared fluorescence imaging with controllable time and space in cells can be realized, and the method can be used for time and space resolution imaging of lysosome in cells.

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.

The invention discloses a preparation method of a multilayer foamed nickel composite material capable of being used for water-in-oil emulsion separation. According to the invention, spongy porous foamed nickel is taken as a carrier, super-hydrophobic nano carbon powder as a filler and hydrophobic polydimethylsiloxane as a binder, a single-layer super-hydrophobic foamed nickel composite material is prepared through a simple suspension immersion method and a heating curing method, and then a press is used for pressing the single layer into a multi-layer composite material with high porosity and a multi-stage coarse structure for water-in-oil emulsion separation. The surface of the micro-nano structure has a super-hydrophobic characteristic in air and under oil, and in addition, a multi-layer efficient water-in-oil emulsion separation membrane prepared from the multi-layer composite material shows excellent chemical stability, mechanical tensile resistance and wear resistance in the efficient emulsion separation process and can be repeatedly used for multiple times.

The invention discloses an antibacterial plastic mat, which comprises a mat body. The mat body is prepared by weaving warps and wefts. The wefts are plastic pipes, which comprise the following components in parts by weight: 70 to 80 parts of polypropylene particles, 10 to 15 parts of polyethylene, 5 to 10 parts of modifier, 5 to 10 parts of limestone, 3 to 5 parts of vanadium carbide, and 3 to 5 parts of color master batch; wherein the modifier comprises the following components in parts by weight: 50 to 70 parts of polyvinyl chloride, 5 to 10 parts of graphene, 3 to 5 parts of lanthanum oxide, 5 to 8 parts of nano titanium dioxide, and 3 to 5 parts of chitosan. The strength and toughness of prepared plastic pipes are excellent, and the plastic pipes can be used in a weaving machine and woven with warps to prepare the plastic mat.