233results about How to "High catalytic efficiency" patented technology

Group 4 metal complexes useful as addition polymerization catalysts of the formula:

wherein

• • G¹ is a group containing from 1 to 40 atoms not counting hydrogen;
  • T is a divalent bridging group of from 10 to 30 atoms not counting hydrogen, selected from mono- or di-aryl-substituted methylene or silylene groups or mono- or di-heteroaryl-substituted methylene or silylene groups, wherein at least one such aryl- or heteroaryl-substituent is substituted in one or both ortho-positions with a secondary or tertiary alkyl-group, a secondary or tertiary heteroalkyl group, a cycloalkyl group, or a heterocycloalkyl group,
  • G² is a C_6-20 heteroaryl group containing Lewis base functionality,
  • M is the Group 4 metal,
  • X″″ is an anionic, neutral or dianionic ligand group,
  • x″″ is a number from 0 to 5, and
  • bonds, optional bonds and electron donative interactions are represented by lines, dotted lines and arrows respectively.

The invention relates to a catalyst for room temperature formaldehyde purification. The catalyst comprises a porous inorganic oxide carrier, and an active component and an assistant which are loaded on the carrier, the active component comprises a transition metal active component, and the transition metal is anyone of or a combination containing at least two of manganese, iron, ruthenium, iridium, osmium, nickel, copper and zinc. The catalyst for room temperature formaldehyde purification can be used under simple conditions, is convenient to operate, can effectively catalyze the main indoor pollutant formaldehyde under room temperature conditions, can catalyze oxidation of formaldehyde under room temperature conditions to form carbon dioxide water without formic acid, carbon monoxide, methyl formate or other byproducts, and allows he formaldehyde conversion rate to reach 100%.

The invention belongs to the chemical technology field, and discloses a method for preparing methyl ethyl ketone. The methyl ethyl ketone is prepared from 2,3-butanediol by dehydrating in the presence of ZSM-5 or NaY molecular sieve catalyst. Under process conditions, the catalyst is not easily deactivated and has good stability. The method has the advantages of high substrate conversion and product yield, simple process, low production cost and less environmental pollution, and can satisfy industrial requirement. With the method, the conversion rate of 2,3-butanediol is 90.5%-100%, and the selectivity of methyl ethyl ketone is 83.7%-91.3%.

The invention provides a method for preparing Fenton-like reaction catalyst. Inert oxide or a molecular sieve is used as a carrier, and the carrier is loaded with nano-scale iron oxide. The method includes mixing the iron oxide and the carrier with each other and then molding the iron oxide and the carrier to obtain particles; calcining the particles at the temperature of 200-500 DEG C to obtain the Fenton-like reaction catalyst with the particle size of 10-40 mesh. A weight proportion of the iron oxide to the carrier is 1:(0.4-1). The method has the advantages that the Fenton-like reaction catalyst prepared by the aid of the method is high in catalytic activity, selectivity and stability and can be used as Fenton-like oxidation reaction catalyst for advanced treatment of wastewater after the wastewater is subjected to biochemical treatment, accordingly, the catalytic efficiency can be improved in reaction procedures, float mud can be prevented, the COD (chemical oxygen demand) removal rate of the treated wastewater can be obviously increased as compared with existing Fenton treatment, and wastewater treatment discharge requirements can be met; the pH of treated outflow ranges from 7.0 to 8.0, and the treated outflow can be directly discharged without pH regulation; waste mud generated in treatment procedures can be utilized and can be used for producing coatings.

The invention discloses a surface modified nano ferroferric oxide Fenton catalyst and a preparation method thereof. The preparation method of the surface modified nano ferroferric oxide Fenton catalyst comprises the following steps: firstly preparing high dispersibility nano ferroferric oxide by adopting a coprecipitation method, and then carrying out surface modification on the nano ferroferric oxide by adopting a hydrolysis method. Organic acid salt and a non-ionic surface active agent are added when the coprecipitation method is adopted for preparing ferroferric oxide particles, so that the quantity of inorganic matters deposited on the surfaces of the ferroferric oxide particles is low, enrichment of reaction substrate and charge transfer on the surfaces of the ferroferric oxide particles can be enhanced, good catalytic efficiency can be realized at room temperature in a larger pH range, and the surface modified nano ferroferric oxide Fenton catalyst can be used for advanced oxidation treatment of dye sewage, organic pollutant sewage, pesticide sewage and the like. Therefore, the preparation method of the surface modified nano ferroferric oxide Fenton catalyst has the characteristics of simplicity in operation, mild conditions, adaptability to large-scale preparation and the like, cost for obtaining the product is low, and the obtained product can be widely and more easily popularized.

The invention discloses a method for preparing double metal cyanide catalyst, so as to obtain the double metal cyanide catalyst with the structure of Aa Bb Cc Dd (H2O) e. The method comprises: halide water solution which has a certain concentration and contains one or more divalent metal(s) is gradually dripped with cyanide water solution containing one or more variable valency metal(s) B; after being filtered and fully washed for reaction, precipitate can be formed; then, chelating agent is added for reaction; after being separated and dried, the double metal cyanide catalyst can be obtained. The preparation method is simple and does not produce a great deal of waste water which is harmful to the environment; the unreacted chelating agent can be recycled, so that the production cost is low, and the method is beneficial to environmental protection. When being applied to the copolymerization of carbon dioxide/epoxide, the catalyst has good application effect.

The invention relates to the technical fields of chemistry and photocatalysis and particularly relates to a preparation method of a titanium dioxide-graphene oxide composite. The preparation method comprises the following steps: firstly, respectively preparing an aqueous solution of titanium dioxide and an aqueous solution of graphene oxide; mixing the aqueous solutions to obtain a mixed solution; dissolving the mixed solution in polyethylene oxide to obtain a mixture serving as a spinning aid; and performing electrostatic spinning to obtain the titanium dioxide/graphene oxide composite. According to the preparation method of the titanium dioxide/graphene oxide composite, titanium dioxide/graphene oxide are processed into a nanometer fiber structure by virtue of an electrostatic spinning technology, and on the premise that no agglomeration is ensured, the catalytic efficiency is increased.

The invention provides a hollow core-shell Pt@Ni/graphene three-dimensional composite catalyst and a preparation method. A PtNi nano alloy of a hollow core-shell structure is uniformly loaded on the surface of graphene by virtue of an electrochemical deposition method by taking the graphene as a carrier and a polymer nanosphere as a template. The catalyst is represented by adopting a SEM and an electrochemical method. The composite catalyst is uniformly deposited among graphene sheet layers, so as to effectively prevent accumulation between graphene nanosheets, improve the dispersion degree of the catalyst and increase the active surface area of the catalyst. Test results of cyclic voltammetry and chronoamperometry show that the hollow core-shell Pt@Ni/graphene three-dimensional composite catalyst is relatively good in catalytic activity and CO poisoning resistance on methanol oxidation and also is good in stability.

The invention relates to alginate lyases, and in particular, relates to coding genes and applications of three algin-degrading alginate lyases. The alginate lyases comprise alginate lyases AlgAT0, AlgAT1 and AlgAT5 respectively. The coding genes of the alginate lyases have the base sequences of SEQ ID NO.1, SEQ ID NO.2 and SEQ ID NO.3 respectively. The alginate lyase genes are cloned into escherichia coli and pichia pastoris by a genetic engineering method. The AlgAT0, AlgAT1 and AlgAT5 are cloned into an expression vector of pichia pastoris; after fermentation condition optimization, fermentation is performed for 120 h, the concentrations of extracellular proteins are 0.312 g/L, 1 g/L and 9.39 g/L respectively, and the enzyme activities are 64666.67 U/mL, 126666.67 U/mL and 136025.6 U/mLrespectively. An escherichia coli recombinant strain and a pichia pastoris strain capable of producing alginase are obtained. The recombinant enzymes have stable properties and can be used for algin conversion with high added value, the enzyme activities of the three enzymes are much higher than values those reported so far, and the three enzymes have quite good potential for industrial application.

The invention discloses a method for preparing alkoxycarbonyl isothiocyanate, which comprises the following step of: reacting chloroformate with thiocyanate in an organic solvent by taking dialkyl amino alkyl imine Schiff base as a catalyst to generate N-alkoxycarbonyl isothiocyanate. The invention further provides a method for preparing an alkoxycarbonyl isothiocyanate derivative, which comprises the following steps of: reacting chloroformate with thiocyanate in the presence of an organic solvent and a catalytic amount of dialkyl amino alkyl imine Schiff base to generate an alkoxycarbonyl isothiocyanate intermediate product; and reacting the intermediate product with an alcohol, amine, thioalcohol or thiophenol compound to generate the alkoxycarbonyl isothiocyanate derivative. The methods disclosed by the invention have the advantages of catalyst nontoxicity, high catalysis efficiency, high product purity, small amount of waste water and the like.

The invention discloses a method for treating water by an integrated catalytic ozonation-biological aerated filter device. The method comprises the steps of mixing water from a water inlet water pump with ozone which comes from an ozone generation system and contains oxygen in a main pipeline of waste water, entering the mixture evenly into a catalytic ozonation zone through a filter plate which is arranged at the bottom of a catalytic ozonation reaction zone, wherein the upper end of a catalytic ozonating agent ceramsite is filled with a common biological ceramsite, wherein the filling height of the catalytic ozonating agent ranges 0.3n to 1m; and thoroughly oxidizing and decomposing the waste water and the ozone under the catalytic action of the catalytic ozonating agent ceramsite in the catalytic ozonation zone and then flowing up to the upper biological aerated filter. According to the invention, nonbiodegradable organic matters in water are destructed and treated through catalytic ozonation pretreatment and then converted into biodegradable organic matters, and further biochemically treated by using the biological aerated filter; as a result, the advantages of the biological aerated filter are brought into play thoroughly and the waste water containing the biodegradable organic matters are effectively treated.

The invention discloses a preparation method of aniline through catalytic nitrobenzene hydrogenation. According to the preparation method, nitrobenzene is taken as the reactant, hydrogen gas is taken as the hydrogen source, a precious metal supported nitrogen-functionalized carbon material is taken as the catalyst, water is taken as the solvent, reactions are carried out for 0.5 to 5 hours at a temperature of 30 to 80 DEG C, after reactions, the reaction product is filtered; and then the reaction liquid is extracted by anhydrous ethanol to obtain aniline. No organic solvent or additive is used during the reaction process. After the reactions, the catalyst and the reaction product can be separated just through simple filtering. The catalyst can be repeatedly used, while the catalytic activity is basically not changed. The yield of aniline can reach 90% or more. The preparation process of catalyst is simple, the cost is low, the repeatability is good, and the catalyst system is high efficient, green, and environment-friendly. The reaction conditions are mild, the operation is simple, no additive is used, the catalysis process is environment-friendly, and thus the method has a very good industrial application prospect.

The invention discloses a solid base catalyst for biodiesel synthesis, a preparation method and use. The method of the invention has the advantages of simple technique, rich raw materials, low catalyst production cost and the prepared catalyst has high catalytic efficiency, good reproducibility and environmental protection.

A novel computational method and generation of mutant butyrylcholinesterase for cocaine hydrolysis is provided. The method includes molecular modeling a possible BChE mutant and conducting molecular dynamics simulations and hybrid quantum mechanical/molecular mechanical calculations thereby providing a screening method of possible BChE mutants by predicting which mutant will lead to a more stable transition state for a rate determining step. Site-directed mutagenesis, protein expression, and protein activity is conducted for mutants determined computationally as being good candidates for possible BChE mutants, i.e., ones predicted to have higher catalytic efficiency as compared with wild-type BChE. In addition, mutants A199S/A328W/Y332G, A199S/F227A/A328W/Y332G, A199S/S287G/A328W/Y332G, A199S/F227A/S287G/A328W/Y332G, and A199S/F227A/S287G/A328W/E441D all have enhanced catalytic efficiency for (−)-cocaine compared with wild-type BChE.

The invention relates to a preparation method of 2,6-difluorobenzamide by utilizing rhodococcus ruber. The method comprises the following steps: (1) fermentation and culture of seeds; (2) preparation of rhodococcus ruber suspension fluid; (3) conversion of 2,6-difluorobenzonitrile; (4) preparation of finished products. The invention provides a preparation method of 2,6-difluorobenzamide by utilizing rhodococcus ruber to convert 2,6-difluorobenzonitrile into 2,6-difluorobenzamide. The microorganism conversion method has a very high catalytic efficiency, increases the substrate conversion rate, under a material concentration of 3.5 mol/L, the 2,6-difluorobentrinile conversion rate is as high as 100%, the 2,6-difluorobenamide selectivity is 100%, and no by product 2,6- difluorobenzoic acid is generated. The separation and purification technology of target product is simplified, and the method has the advantages of mild reaction conditions, low requirements on equipment, and easy application to production.

The invention provides a heterogeneous acid catalyst which is formed by linking an acidic ionic liquid on a mesoporous material through chemical bonds. The invention further provides a preparation method of the heterogeneous acid catalyst and the application of the heterogeneous acid catalyst in a catalytic esterification reaction. The heterogeneous acid catalyst is simple in preparation method and stable in structure, can be used as a heterogeneous catalyst to be repeatedly used, and is high in catalytic efficiency. Side reactions such as oxidation reactions, sulfonation reactions and the like are not likely to happen when the heterogeneous acid catalyst is used for synthesize an ester. A catalyzed product is good in quality, no acid regurgitation phenomenon happens, the heterogeneous acid catalyst does not corrode equipment, recycle is easy after a catalytic reaction, and the cost of an esterification reaction is greatly reduced.

The invention provides a NiSe2 transition metal chalcogenide nanosheet. The nanosheet is 1-2 mu m long and 30-80 mu m thick. The transition metal chalcogenide nanosheet has a larger specific surface area, is used as a water decomposition electrocatalyst and has the higher catalytic efficiency. The invention further provides a preparation method of the NiSe2 transition metal chalcogenide nanosheet. A nickel source compound and ammonia water are used as raw materials, a NI(OH)2 nanosheet grows on a substrate in a thermal insulation manner, then Se displacement is performed, and the NiSe2 transition metal chalcogenide nanosheet is obtained. The method adopts the simple process, and NiSe2 transition metal chalcogenide with the sheet-like morphology is prepared successfully.

The invention relates to a Pt-loaded crystallized manganese oxide nanosheet material and a preparation method and application thereof. The Pt-loaded crystallized manganese oxide nanosheet material comprises delta-MnO2 nanosheets with the layered crystal structure and metal Pt dispersed into the delta-MnO2 nanosheets, and the loading amount of the metal Pt ranges from 1 wt% to 5 wt%; the valence states of Mn in the delta-MnO2 nanosheets comprise Mn<4+>, Mn<3+> and Mn<2+>, wherein the content of Mn<4+> accounts for 30% to 45% of the total content of Mn. The crystallized manganese oxide nanosheet material comprises the delta-MnO2 nanosheets with the layered crystal structure and has multiple manganese valence states (Mn<2+>, Mn<3+> and Mn<4+>), and Mn<4+> with the high content (the content of Mn<4+> accounts for 30% to 45% of the total content of Mn) plays a key role in ethylene oxidation.

The invention provides an air cleaner which comprises a shell body. An air inlet is formed in a first face cover of the shell body, a filter device and an air suction device are arranged in the shell body, and an air outlet is formed in a second face cover of the shell body. The air cleaner is further provided with a humidification device, a mistorizer is arranged at the bottom of the humidification device, the humidification device is further provided with a first water spray outlet which outputs water spray to the filter device, and the first water spray outlet is located between the air inlet and a filter screen of the filter device. The air cleaner can purify air with high efficiency and low cost.

The invention relates to the technical field of paints for indoor decoration and particularly relates to a water-based paint capable of purifying air. The water-based paint comprises 20-65 percent of water-based polyurethane emulsion, 20-35 percent of talcum powder, 1-5 percent of anatase titanium dioxide, 0.5-1 percent of photocatalysis additive, 1-2 percent of wetting agent, 0.5-1 percent of dispersant, 1 percent of preservative, 1-2 percent of antifreezing agent, 1-2 percent of film-forming agent and the balance of water. According to the water-based paint capable of purifying air, the photocatalysis additive, namely zinc oxide is added to the paint, so that the paint can obtain relatively high catalysis efficiency under visible light, and indoor organic pollutants can be effectively degraded.

The invention discloses a magnetic loaded catalyst of metallic ion-polyamide which is a composition of metallic ions and the polyamide treeing compound on the surfaces of Nano magnetic particles, the mol ratio of nitrogen-atoms and metallic ions in the polyamide treeing compound is 0.5 to 300, and the metallic ions are a cupric ion or manganese ions. The invention combines the characteristics that metallic ion-polyamide treeing compound complex catalyst has high catalytic efficiency and the Nano magnetic particles are easy to be recovered through a magnetic field, can enable PPO to obtain high yield when being applied to aqueous medium for preparing the PPO with only a little quantity, and can be recycled for reusage by the magnetic field after the oxypolymerization, thereby solving the problem that prior catalyst for preparing polyphenylether in the water medium has low catalytic efficiency and is difficult to recover.

The invention relates to a method for preparing conjugated linoleic acid by utilizing vegetable oil and fat solid base catalysis, which selects one of cotton seed oil, safflower seed oil, soybean oil, sunflower oil, suaeda glauca seed oil, rice bran oil and corn germ oil as the raw material, utilizing solid base catalysis isomerization, solid base filtration, acidification, brine wash, bath, solid fatty acid subzero fractionation and liquid fatty acid urea complexation to extract conjugated linoleic acid. In the method of the invention, the percent conversion of conjugated linoleic acid is larger than 96%, the solid base catalyst has the characteristics of high catalysis efficiency, good stability, easy separation and good regeneration performance of catalyst, and is environment-friendly.

The invention relates to the field of genetic engineering, in particular to a plasmid for theanine production and a construction and application method of corresponding engineering bacteria of the plasmid. The invention provides an escherichia coli expression plasmid of gamma-glutamyl-methylamine synthetase. A target gene sequence in the plasmid is optimized, so that the expression efficiency in escherichia coli is high; the gamma-glutamyl-methylamine synthetase expressed by a gamma-glutamyl-methylamine synthetase gene is high in activity; and the problem of low activity of an existing enzyme for the theanine can be solved. The catalytic substrate is low-cost glutamic acid and ethylamine, so that the problem of relatively high cost of the substrate in the prior art can be solved. The invention further provides theanine engineering bacteria and a matched culture method thereof. The engineering bacteria are obtained by the escherichia coli expression plasmid of the gamma-glutamyl-methylamine synthetase, can be applied to production of the theanine, and are easy to culture, so that the defects that an existing bacterial strain is not stable enough can be solved.

The invention belongs to the field of asymmetric catalysis, and discloses an asymmetric hydrogenation method of an alpha-ketone amide compound. The asymmetric hydrogenation method comprises the following steps that under the existence of a catalyst, alkali and a solvent, an alpha-ketone-beta-alkene amide compound is subjected to reduction in the hydrogen atmosphere, and an alpha-hydroxyl-beta alkene amide compound is obtained; and the catalyst is obtained through complexing of metal iridium salt and a chiral ligand, and the chiral ligand is selected from the following compounds: (the formulasare shown in the description). The asymmetric hydrogenation method is easy to operate, high in conversion rate and selectivity and low in cost, has the advantages of being high in atom economy and environmentally friendly, and has a very good industrialized application prospect.

The invention relates to a preparation method and an application of a composite solid superacid catalyst, and belongs to the technical field of solid superacid catalysts. The preparation method of the composite solid superacid catalyst comprises the following steps: preparing SiO2 supported perfluorosulfonic acid resin solid particles through adopting a sol-gel technology, and calcining the solid particles to obtain the perfluorosulfonic acid resin/SiO2 composite solid superacid catalyst. The preparation method of the composite solid superacid catalyst is simple and easy, and the catalyst prepared in the invention has the advantages of certain crystal form, crystal size, aperture structure and specific surface area, high mechanical strength, full exposure of acidic sites, stable catalysis activity, and high catalysis efficiency and reuse rate; and the invention also provides the simple and convenient application of the composite solid superacid catalyst.

The invention relates to a method for preparing biodiesel with low energy consumption, belonging to biological oilseed synthesis field. The current technology is characterized by long time- consumption for biological enzyme catalysis, large wastewater generation by homogeneous acid alkaline catalysis, and large energy consumption of supercritical method. The invention takes short- chain alcohol as acyl accepter, takes porous composite catalyst to catalize ester exchange reaction and converse biological oil material into biodiesel. The solid porous composite catalyst is characterized by large contacting area with reactant, high catalytic efficiency, no alkaline wastewater, and easy separation of catalyst from product; the pH of produced biodiesel is 7, which saves washing process; there is no need for high temperature and pressure, which reduces energy consumption; pretreating short-chain alcohol with heat exchanger, and the short-chain alcohol is pumped into ester change room by gas circulation pump, which increases the vortex in reaction room for stirring and thus saves stirrer expense.

The invention discloses a preparation method of titanium oxide (TiO2) - silicon dioxide (SiO2) visible light compound light catalytic agent. The prepared TiO2-SiO2 visible light compound light catalytic agent by the preparation method has visible light wave band light response and excellent catalyst degrade effect to organic matters. The preparation method of the TiO2-SiO2 visible light compound light catalytic agent comprises the following steps: 1, respectively dissolving tetrabutyl orthotitanate (TBOT) and tetraethyl orthosilicate (TEOS) with a certain volume ratio, then adding ammonium acetate and C microsphere to anhydrous ethanol according to a certain adding amount, and eventually obtaining black suspension liquid; 2, transferring the black suspension liquid to a high-pressure reaction kettle to conduct hydrothermal reaction, and lastly, obtaining the TiO2-SiO2 visible light compound light catalytic agent after calcining solid products in reaction liquid. The preparation method of the TiO2-SiO2 visible light compound light catalytic agent is simple in steps, mild in reaction condition, low in cost, high in reproducibility, easy to scale-up, high in purity, production and rates of production of the prepared products, and large in specific surface area. The preparation method of the TiO2-SiO2 visible light compound light catalytic agent has response in visible light wave band and is high in catalytic efficiency.

The invention discloses a multi-enzyme system with immobilized polyethylenimine and metal coordination and a method for preparing the multi-enzyme system, and belongs to the technical field of immobilized enzymes. The method includes immobilizing glycerol dehydrogenase, coenzyme oxidase and glycerol dehydrogenase-coenzyme oxidase fusion enzymes by the aid of coordination of polyethylenimine and metal ions; forming netted polyethylenimine frameworks by polyethylenimine molecules under coordination effects of imine and the metal ions in immobilizing procedures; forming coordination bonds by the metal ions coordinated on the polyethylenimine, C-end histidine tags of the glycerol dehydrogenase and the coenzyme oxidase and C-end histidine tags of the glycerol dehydrogenase-coenzyme oxidase fusion enzymes so as to acquire the immobilized multi-enzyme system. Coordination crosslinking effects can be realized by the metal ions in the immobilizing procedures, and the catalysis efficiency of the multi-enzyme system can be improved. The multi-enzyme system and the method have the advantages that the multi-enzyme system is high in multi-enzyme coupling efficiency, preparation conditions are mild, and processes are simple and feasible; the immobilized enzymes are high in immobilizing rate and activity recovery rate and good in reuse stability, the temperature stability can be obviously improved, and the like.

The invention provides a preparation method for carrollite spinel and an application thereof and relates to the preparation and application of carrollite spinel. The preparation method comprises the following steps: dissolving cobalt ion salt and cupric ion salt in ultrapure water and adding thiourea; dissolving and then adding excessive quadrol, and performing hydrothermal reaction, thereby acquiring a solid product; cleaning and drying the solid product. The application is as follows: free sulfate radicals generated by activation of persulfate under the effect of carrollite spinel are utilized to degrade organic pollutants in water, under the condition of taking the carrollite spinel as a catalyst and monopersulfate as an oxidizing agent. According to the invention, transition metals copper and cobalt on the surface of carrollite spinel are capable of catalyzing monopersulfate to decompose and generate free sulfate radicals with strong oxidizing property in the manner of changing valence state, and the free sulfate radicals react with organic pollutants so as to decompose and even mineralize the organic pollutants. The carrollite spinel prepared according to the invention has a stable structure, is high in catalyzing efficiency and is reusable. The invention is suitable for preparing carrollite spinel and catalyzing monopersulfate to degrade organic pollutants in water.

The invention relates to a preparation method of alcohol ether carboxylate and belongs to the technical field of a surfactant. The alcohol ether carboxylate is prepared from alcohol ether and sodium chloroacetate in the presence of alkali metal hydroxide and a phase-transfer catalyst. The preparation method comprises putting alcohol ether and a phase-transfer catalyst into a reactor, mixing an alkali metal hydroxide and sodium chloroacetate to obtain a uniform mixture, putting the mixture into the reactor in batch, carrying out ageing, adding anhydrous ethanol into the reactor, carrying out filtration to remove inorganic salt and excess sodium chloroacetate, and carrying out distillation to remove anhydrous ethanol and to obtain a product. The preparation method of alcohol ether carboxylate has the advantages of simple processes, mild reaction conditions and high conversion rate.