101 results about "Tributylamine" patented technology

The invention discloses volatile rust preventive oil which comprises, by weight, 71-91% of base oil, 5-25% of an oil soluble volatile corrosion inhibitor, 1-5% of an antirusting agent, 1-6% of a cosolvent, 0.5-1% of a mildew-proof agent, 0.5-1% of an antifoaming agent and 1-6% of antioxidant, wherein the base oil is one of 500SN 46# machine oil, 32# machine oil, 600SN 150# machine oil and 100# machine oil; and the oil soluble volatile corrosion inhibitor is a mixture of four kinds of 2-heptadecenyl-imidalidine, octadecylamine, triazole tributylamine, dicyclohexylamine carbonate, dicyclohexylaminenitrite, benzotriazole, tert-butyl chromate, nephthenic soap, petroleum sodium sulfonate, sorbitan monooleate and stearic acid; and the antioxidant is sulfurphosphorousbutyloctyl zinc salt. The volatile rust preventive oil has good volatile rust preventive and corrosion resistant performances, metal which cannot be coated with rust preventive oil can achieve rust preventive protection, the operation is simple, and the cost is low.

The invention discloses a method for chlorine from solution of zinc sulfate, which mainly comprises the following: 1, a step of extraction, in which tributylamine is used as an extractant, kerosene or para-octanol is used as diluent, clear liquid of zinc sulfate is mixed with an organic phase for extraction, and chlorine in a water phase is transferred to an organic phase; 2, a step of back extraction, in which back extraction is performed by using ammonia water or solution of sodium hydroxide, chlorine in the organic phase is retransferred to the water phase, and the organic phase is recycled; 3, a step of organic phase regeneration, in which 5 to 10 percent solution of sodium hydroxide is mixed with the organic phase which ages after being used for a certain period of time in a ratio of 1:0.9 to 1:2.5, and the mixture is stirred by an electromagnetic siterr at a high speed for 8 to 15 minutes for regenerating the organic phase; and 4, a step of deoiling, in which raffinate is subjected to active carbon absorption or ultrasonic demulsification so as to remove the organic phase in the raffinate. In the invention, the organic phase and the raffinate can be used circularly, the dechlorination rate is over 85 percent, the electrolytic operation environment is improved, the process flow is simple, and the method can be used for dechlorinating solution of zinc sulfate from wet-method zinc smelting plants and can also be used for dechlorinating wastewater.

The invention discloses a gas-phase rust-preventing aerosol and a preparation process thereof. The formula of the gas-phase rust-preventing aerosol comprises the following components in parts by mass: 0.5-1.5 parts of caprylic acid tributylamine, 1-3 parts of benzotriazole tributylamine, 2.5-3.5 parts of oleic acid, 1-3 parts of laurinol, 0.2-0.8 part of amino silicon oil, 2.5-3.5 parts of methyl oleate, 0.2-0.8 part of sodium petroleum sulfonate, 0.2-0.8 part of barium petroleum sulfonate, 0.5-1.5 parts of capric acid tributylamine, 51.5-61.5 parts of 20# machine oil and 27-33 parts of liquefied petroleum gas. The process comprises the following steps: mixing and stirring the raw materials; filling the obtained liquid into a spray can; inserting a capillary valve; filling the liquefied petroleum gas; performing leak detection, and blowing-dry; and boxing, and warehousing. The invention has the characteristics of small aerosol particle diameter and high aerosol particle uniformity DR, and can effectively enhance the corrosion inhibition effect of a metal component.

The invention relates to a preparation method of dialkyl methylphosphonite. tertiary amine with pKa greater than 10 is adopted as the acid binding agent, methyl phosphonic dichloride and alcohol react in a solvent, and the mole ratio of the methyl phosphonic dichloride, alcohol and tertiary amine is 1:2.0-2.4:2.0-2.4, the produced tertiary amine hydrochloride is neutralized with a caustic soda aqueous solution, and the solvent and tertiary amine obtained by evaporation is recycled and reused. The alkyl of the dialkyl methylphosphonite is straight chain and side chain alkane or alkene of aliphatic C1-C4, the alcohol refers to methanol, ethanol, propanol, isopropanol, allyl alcohol, n-butanol, isobutanol and the like, the tertiary amine refers to tertiary fatty amine, and also refers to fatty group and aromatic mixed tertiary amine, at the same time, the pKa of the tertiary amine is required to be greater than 10, and the tertiary amine can include triethylamine, tripropylamine and tributylamine.

The invention discloses a cooling liquid and an application of the cooling liquid in a cooling system of electronic equipment. The main component of the cooling liquid is a perfluoroamine compound. The perfluoroamine compound is one or a mixture of more than two of perfluorotriethylamine, perfluorotripropylamine, perfluorotributylamine, perfluorotriamyl amine and perfluoroN-methylmorpholine. Whenthe cooling liquid is used for cooling systems of electronic equipment such as a data center server, a super computer, an integrated processing server or an electric vehicle battery pack, the coolingliquid has the characteristics of good heat transfer effect, uniform heat dissipation, stable cooling effect and the like.

The invention relates to a quaternary ammonium salt functionalized porphyrin catalyst and a preparation method thereof. The preparation method comprises the steps of reacting substituent-containing benzaldehyde and salicylaldehyde with pyrrole to prepare phenolic functionalized porphyrin, then undergoing a reaction with dihalogenated alkane to prepare halogenated porphyrin, reacting the prepared halogenated porphyrin with alkaline compounds (triethylamine, tributylamine and pyridine and the like) to prepare quaternary ammonium salt modified porphyrin; performing complexing of the prepared quaternary ammonium salt modified porphyrin and metals, and obtaining a quaternary ammonium salt functionalized porphyrin M (M=Co, Cr and Al) catalyst through oxidation. The obtained catalyst can be used for the copolymerization reaction of carbon dioxide and propylene oxide, aliphatic polycarbonate with a high molecular weight is obtained, the number-average molecular weight of the aliphatic polycarbonate is 15000-40000, the molecular weight distribution is 1.25-1.4, the carbon dioxide fixed rate is 39-43wt%, and the molar content of a carbonic ester chain segment in a polymerization product is 85-99%.

The invention discloses a method for preparing methyl chlorosilane by cracking organic silicon high boiling point substance, which takes the organic silicon high boiling point substance produced by organic silicon mixed monomer as raw material, and comprises the steps of: when the organic silicon high boiling point substance is forged to 2 / 3 of the liquid level in a cracking kettle by a pump, adding catalyst triethylamine and tributylamine; filling chloromethane gas into the cracking reaction kettle with rising temperature, and preparing methyl chlorosilane mixed monomer; and cooling the mixed monomer, leading the mixed monomer enter a rectifying tower, and then preparing monomethyl dichlorsilane, dimethyl dichlorsilane, monomethyl trichlorosilane and trimethyl monochlorosilane. The method can improve the selectivity of the dimethyl dichlorsilane, increases the product yield, generates less residual waste, solves the problem of the utilization of the high boiling point substance, reduces the environmental pollution, is low in cost, has higher profit space, can be used for continuously cracking the high boiling point substance, and is suitable for popularization and application.

A method for preparing 3-rosin amino-2-hydroxypropyl dimethyl benzyl ammonium chloride is a method for preparing a cationic active agent containing a rosin amine structure, belonging to the aspect of surfactant chemistry in the forest chemical field. At a temperature of between 10 and 150 DEG C, an acid-binding agent compounded by sodium carbonate, potassium carbonate, calcium carbonate, sodium bicarbonate, potassium bicarbonate, potassium hydroxide, sodium hydroxide, triethylamine, tripropyl amine and tributyl amine is loaded on a carrier consisting of aluminum oxide, silica gel and active carbon to form a solid which is used as a catalyst for catalyzing the reaction of rosin amine and quaternizing agent consisting of epoxy propyl dimethyl benzyl ammonium chloride and 3-chlorin-2-hydroxypropyl dimethyl benzyl ammonium chloride for 1 to 50 hours, and then the reactants are subjected to centrifugation or filtration, exsolution and composite solvent recrystallization to form a wet material of the 3-rosin amino-2-hydroxypropyl dimethyl benzyl ammonium chloride; and the wet material is dried for 1.0 to 48.0 hours at a temperature between 10 and 120 DEG C at a vacuum degree of 0.01 to 0.1MPa to form a product of the 3-rosin amino-2-hydroxypropyl dimethyl benzyl ammonium chloride mass percentage of which is more than 90 percent.

The invention relates to a castor oil modified weak cation polyurethane color fixing agent and a preparation method thereof. The castor oil modified weak cation polyurethane color fixing agent is synthesized by adopting castor oil, methylbenzene 2,4-diisocyanate, dimethylolpropionic acid, acetone, dimethylformamide, tributylamine, diethylenetriamine, epichlorohydrin, sodium hydrogen sulfite and the like as raw materials. The production process comprises polyurethane pre-polymerization reaction, modified chain extension, closed reaction and chain removal reaction. The renewable castor oil is adopted as the raw material, so that the dependence on the petroleum can be reduced; the polyurethane synthesized by the castor oil has multiple branch chains, and the appropriate cross-linking can be generated when in curing, so that the combination firmness and cohesive force with a fabric can be improved; the diethylenetriamine is adopted to seal the end, an epoxy group is introduced onto the molecular chain and the epoxy group also can have chemical reaction with hydroxyl and amino group on the dye molecules, so that the dye is integrated with a film formed by a web rubbing fastness promoter into a whole, fibers, dyes and polyurethane films are integrated together, and the dye flooding can be fixed.

The invention relates to a method for preparing 3-abietylamine-2-hydroxypropyltrimethylammonium chloride, in particular to a method for preparing a cationic active agent with an abietylamine structure in respect of surface active agent in the filed of chemical processing of forest products. The method comprises the steps: at temperature lower than 10 DEG C to 150 DEG C, an acid binding agent combined by sodium carbonate, potassium carbonate, calcium carbonate, sodium bicarbonate, potassium bicarbonate, potassium hydroxide, sodium hydroxide, triethylamine, tripropyl amine and tributylamine is carried on a solid composed on a carrier consisting of aluminum oxide, silica gel and active carbon to serve as a catalyst and directly catalyze abietylamine to react with a quaternization reagent composed of epoxypropyl trimethyl ammonium chloride and 3-chlorin-2-hydroxypropyltrimethylammonium chloride for 1h to 50h; then centrifugation or filtering, desolution at normal pressure or pressure reduced and recrytallization of a compound solvent are carried out, thus obtaining a wet material of the 3-abietylamine-2-hydroxypropyltrimethylammonium chloride; the wet material is dried for 1.0h to 48.0h at temperature of 10 DEG C to 120 DEG C at a vacuum degree of 0.01MPa to 0.1MPa; and a 3-abietylamine-2-hydroxypropyltrimethylammonium chloride product with mass content higher than 90 percent is obtained.

The invention discloses a fluorination liquid composition and application thereof in a transformer. The fluorinated liquid composition is prepared from hexafluoropropylene dimer, hexafluoropropylene trimer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoropentane, perfluorohexane, perfluorotripropylamine, perfluorotributylamine, perfluorotriamylamine, perfluoro-N-methylmorpholine, perfluorocyclic ether, perfluoropropyl methyl ether, perfluorobutyl methyl ether and perfluorobutyl ethyl ether. Any four of the perfluoro-2-methyl pentane-3-methoxy ether, the perfluoro-2-methyl hexane-3-ethoxy ether and the C8 cyclic ether mixture are respectively marked as a first component, a second component, a third component and a fourth component. Compared with traditional transformer oil, the fluorination liquid composition has better fluidity, thermal conductivity, heat dissipation, insulativity, high boiling point, low freezing point, low density and the like, and due to the advantages of environmental friendliness, oxidation resistance, low acid value and the like, the fluorination liquid composition is applied to a transformer, the defects of an existing transformer medium are reduced, and the service life of the transformer is prolonged.

The invention discloses a preparation method of cefdinir, which comprises following steps: (1) letting 7-amino-3-vinyl-8-oxo-5-sulfur heterocyclic-1-aza-bicycle [4.2.0] symplectic-2-alkene-2-carboxylic acid (7-AVCA) react with (Benzothiazol-2-yl)-(Z)-2-trityloxyimino-2-(2-aminothiazole-4-yl)-thioacetate with the existence of Tributylamine in a dichloromethane system to obtain a cefdinir ester solution, then conducting steaming to remove the dichloromethane in order to obtain a sepia and thick cefdinir ester solid; (2) purifying the cefdinir ester solid obtained in (1) to obtain the cefdinir. In the invention, a cefdinir synthetic product with high recovery rate and high purity can be produced in the method without the application of a counter solvent. The preparation process of the product has the advantages that reaction conditions are gentle, operation processes are simple and pollutions are fewer etc. Therefore, the method is applicable in industrial production.

The electrochemical performance of an ion-exchange membrane in a fuel cell system may be improved by impregnating therein a perfluoroamine. The amine may be primary, secondary or tertiary. Further, the amine is preferably water insoluble or only slightly water soluble. For example, the amine may be perfluorotriamylamine or perfluorotributylamine. Use of such a membrane system within a fuel cell may allow high or low temperature operation (i.e. at temperatures greater than 100° C. or less than 0° C.) as well as operation at low relative humidity.

The process of preparing solution for improving oxygen supply of organism tissue belongs to the field of biomedicine technology. The mother liquid is emulsified perfluoro carbon compound in the granularity of 0.1-0.3 microns. The mother liquid is prepared with the materials including perfluoro triethylamine, perfluoro tripropylamine, perfluoro tributylamine, perfluoro decalin, perfluoro adamantane, phospholipid, distilled water, etc, and through compounding, mixing, emulsifying, filtering and packing. The mother liquid is added with dextran, sodium salt, potassium salt, liver growth factor and other supplementary material based on different uses to prepare different types of oxygen supply solution for oral taking, venoclysis, gastrointestinal perfusing or external use. The oxygen supply solution may be used in treating various diseases caused by anoxia.

The invention discloses a multi-effect organic cooling liquid composition and application thereof. The multi-effect organic cooling liquid composition comprises four components, wherein the four components are composed of any four of hexafluoropropylene dimer, hexafluoropropylene trimer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoropentane, perfluorohexane, perfluorotripropylamine, perfluorotributylamine, perfluorotripentylamine, perfluoro-N-methylmorpholine and the like. The cooling liquid composition can achieve corrosion protection of multi-metal materials and welding fluxin liquid cooling systems such as radar and electronic laser, has good adaptability to non-metal materials and long service life, is free of corrosion and pollution, can be used in the environment of65 DEG C below zero to 115 DEG C, is non-conductive or low in conductivity, is nonflammable but easy to clean, has a good cooling effect in the fields of electronic radars, electronic lasers and thelike, and can be applied to cooling systems of low-temperature environment equipment such as radars, lasers, etc.

The invention provides an improved 2-chlorine-5-chloromethyl pyridine synthesis process, which is characterized in that after reaction of toluene solution of 2-chlorine-2-chloromethyl-4-cyano butyraldehyde and triphosgene toluene solution is completed, a certain amount of trialkylamine is added in dropwise mode at 0 to 90 DEG C, trialkylamine hydrochloride is isolated by filtration, and filtrate is desolventized through distillation and then is decompressed and distilled to obtain products of the 2-chlorine-5-chloromethyl pyridine. The trialkylamine is one of triethylamine, tripropyl amine and tributylamine, quantity ratio of the triphosgene and the trialkylamine is 1:6.0 to 1:8.0, and the preferential ratio is 1:6.0 to 1:7.0. In the improved synthesis process, toluene obtained by distillation can be recycled, the main ingredients of a filter cake is the trialkylamine hydrochloride which can be sold as by-products after refining, and substrate after distillation is sent to a combustion furnace for treatment, thereby overcoming the shortcoming that the original technology generates a large amount of waste water, and achieving cleaner production of cyclization reaction.

The invention discloses a load type catalyst, which utilizes roasted gama-alumina as a carrier. An active component is loaded on the carrier to obtain the load type catalyst. The active component is composed of nickel, copper, iron and platinum. The weight sum of the nickel, the copper, the iron, the platinum and the roasted gama-alumina is the total weight. The nickel occupies 15% to 25% of the total weight, the copper occupies 5% to 12% of the total weight, the iron occupies 0.5% to 1% of the total weight, and the platinum occupies 0.5% to 1% of the total weight. A preparation method of the load type catalyst and a method for preparing tributylamine by using the load type catalyst are further disclosed. Butylamine and dibutylamine are mixed in a mixed cylinder to obtain mixed liquid, the mixed liquid is gasified and then passes through a fixed bed reactor containing an activated load type catalyst, catalyst reaction is conducted under the hydrogen condition, and a product is collected after condensation to obtain the tributylamine.

The invention discloses flux paste special for unleaded tin-bismuth solder. The flux paste special for the unleaded tin-bismuth solder comprises, by weight, 10-20 parts of hydrogenated rosin, 5-10 parts of disproportionated rosin, 10-15 parts of dimer rosin, 5-10 parts of tetrahydrofurfuryl alcohol, 5-10 parts of pentaerythritol, 5-8 parts of butyl cellosolve, 5-8 parts of octyl ether, 5-8 parts of dibasic acid esters, 2-5 parts of phthalic acid dibutyl esters, 2-3 parts of oleyl alcohol polyoxyethylene ether, 3-6 parts of polyamide modified hydrogenated castor oil, 2-4 parts of succinic acid, 1-2 parts of pyridine hydrochloride, 1-2 parts of bromic acid tributylamine, 4-8 parts of DIACID 1550 and 1-3 parts of N,N,N,N'',N''-pentamethyldiethylenetriamine. The flux paste special for the unleaded tin-bismuth solder is good in wettability, the welding defect is lower than that of existing flux paste for the unleaded tin-bismuth solder, organic acid and polyamine decompose and volatilize in the welding process, the amount of residues generated after welding is small, and protective films can be formed on the surfaces of welding points through the used rosin.

The invention discloses a synthesis process of tetrabutylammonium bromide. The process is characterized by comprising the following steps: (1) taking dibutylamine and n-butyraldehyde as initial raw materials, taking water as a hydrogen source and butanol as a sacrificial reagent under the action of a modified titanium dioxide photocatalyst, and preparing tributylamine by a photocatalytic continuous micro-channel reactor through a reductive amination mechanism; and (2) after concentrating the obtained tributylamine, making the tributylamine directly dissolved in the solvent and mixed with a certain proportion of n-bromobutane, and then enter the next step continuous micro-channel reactor, such that the target product TBAB can be obtained at the high yield after the reaction is performed for3-5 h at the temperature of 60-90 DEG C. Compared with the kettle type reaction, the continuous reaction temperature is low, the reaction time is short, and the process is safe and efficient.

The invention provides a P1,P4-bis(uridine-5'-tetraphosphoric acid) salt preparation method. The method includes: subjecting tributylamine salt of UTP to action of carbodiimide condensing agents; subjecting synthesis with excessive tributylamine salt of UMP to obtain P1,P4-bis(uridine-5'-tetraphosphoric acid); performing anion exchange resin gradient elution without water concentration, diluting, performing anion exchange resin elution again, and salifying and refining to obtain P1,P4-bis(uridine-5'-tetraphosphoric acid) salt. The method has advantages that the production cycle can be shortened remarkably, and products in medicinal purity can be obtained by preparation.

The invention relates to high-strength conductive plastics which contain the following ingredients: 21 parts of carbon fiber, 25 parts of polystyrene, 54 parts of polrvinyl chloride, 22 parts of tributylamine, 32 parts of diethyl malonate, 65 parts of methyl methacrylate, 5 parts of polyethylene, 22 parts of polypropylene, 10 parts of glass fiber, 7 parts of polybutylene terephthalate, 2 parts of titanium-magnesium alloy powder, 5 parts of lead caprylate and 12 parts of polycarbonate. Compared with the prior art, the plastics have the advantages of good abrasive resistance, high coefficient of thermal conductivity, good mechanical property and strong chemical stability, is suitable for antistatic materials and can prevent electrostatic generation.

The present invention discloses an industrial preparation method of perfluorotributylamine, and is cahracterized by that it uses tributylamine (C4H9)3N and anhydrous hydrogen fluoride HF as raw material, utilizes electrolysis to electrolyze hydrogen fluoride, and produce fluorine free radical on the cathode and flurinate tributylamine so as to obtain perfluorotributylamine (C4F9)3N. Said invention provides its chemical reaction formula and its preparation method formed from 6 steps of electrolysis of HF and dehydration; electrolyzing and fluorinating tributylamine; extracting perfluorotributylamine crude oil; retaining next period reaction; cleaning and precise distillation. Its used electrolytic cell includes cell body, condenser pipe, anode, cell cover.

The invention relates to the technical field of environment-friendly industry waste acid recycling, in particular to an organosilicone waste acid contained tributylamine, siloxane and aluminum chloride recycling technology. The technology comprises the steps of acid and oil separation, aluminum chloride film separation, hydrochloric acid salting analysis, tributylamine and salt separation and salt evaporation and concentration. Equipment of the technology comprises a waste hydrochloric acid groove, a waste acid feeding pump, an acid and water separator, a siloxane recycling tank, a film filter, an aluminum chloride collecting tank, a hydrochloric acid tundish, a hydrochloric acid entrance pump, an analysis tower, a first reboiler, a two-phase separator, a primary condenser, a secondary cooler, a tributylamine recycling tank, an evaporator, a calcium chloride recycling pump, a second reboiler, a tributylamine recycling pump, a wastewater condensation groove and a wastewater pump; the organosilicone waste acid contained tributylamine, siloxane and aluminum chloride recycling technology has the advantages of lowering the treatment operation cost, meanwhile, recycling lost catalysts, siloxane, aluminum chloride and other substances, and improving economic benefits of an enterprise.

The invention provides a powder metallurgy lubricant and a preparation method thereof for stainless steel. The lubricant comprises the raw materials of polyethylene vinyl acetate, graphite, zinc stearate, vinyl-bis-stearamide, paraffin wax, octadecyl amine, petroleum sodium sulfonate, sodium benzoate, zinc butyl octyl phosphate, octoate tributylamine, amino silicone oil, alkyl diphenylamine and oleamide. The preparation method comprises the following steps: firstly mixing the polyethylene vinyl acetate, graphite, zinc stearate, vinyl-bis-stearamide and paraffin wax, and heating at a constant temperature to obtain a mixture I; then adding the remaining raw materials into the mixture I, cooling to the room temperature, and then grinding, crushing, and sieving to obtain the lubricant. The lubricant provided by the invention can improve the green compact strength and finish surface, greatly prolongs the service life of a mould, and improves the productivity, the yield and the quality of a powder metallurgy stainless steel product.

The invention discloses an aqueous-phase synthetic method of sodium azide with n-butyl alcohol being circularly recycled, wherein the method includes following steps: (1) mixing butyl nitrite, sodium hydroxide, hydrazine hydrate, a catalyst and water to form a reaction system; (2) after the reaction finished, recycling the n-butyl alcohol and water; and (3) filtering a reaction solution to obtain a sodium azide (white solid) and circularly recycling the recycled n-butyl alcohol. In the method, by means of the butyl nitrite for synthesizing the sodium azide, so that compared with a synthesis route from ethyl nitrite, the synthetic method is free of high-pressure operations and the risk of leakage of gas. Meanwhile, the reaction can be carried out in the aqueous phase and just needs to added with the catalyst in a micro amount (especially, herein the catalyst may be composited of tributylamine and methanol), so that the synthetic method is environmental-protective. The method is high in yield of product, is low in the content of free alkali and is high in product purity. Meanwhile, the reaction achieves the recycle of a by-product n-butyl alcohol for synthesizing the butyl nitrite, by means of the technical scheme, the environmental pollution is reduced while the economic benefit is increased.

An industrial preparation process of tetrasodium P<1>,P<4>-di(uridine-5')tetraphosphate is provided. The process includes preparing cyclic triphosphoric acid from a tributylamine salt of UTP by utilizing a carbodiimide type condensating agent; reacting the cyclic triphosphoric acid with a tributylamine salt of UMP to synthesize P<1>,P<4>-di(uridine-5')tetraphosphoric acid; directly salifying the reaction solution, without concentration, with a salt of an organic acid; performing crystallization; performing gradient elution with anion exchange resin after dissociation; subjecting the eluate, without the need of water concentration, to salt removing and water removing through membrane filtration; and then salifying to obtain the high-purity tetrasodium P<1>,P<4>-di(uridine-5')tetraphosphate.The tetrasodium P<1>,P<4>-di(uridine-5')tetraphosphate meeting officinal requirements can be prepared in a large scale by the process.

The invention discloses an ionic liquid supported molecular sieve catalyst for synthesizing biodiesel fuel and a preparation method of the ionic liquid supported molecular sieve catalyst. Carriers of the ionic liquid supported molecular sieve catalyst comprise a chloropropyl functionalized HMS(CP-HMS) molecule sieve and a chloropropyl functionalized MCM-41(CP-MCM-41) molecule sieve, and a component needed by supporting is triethylamine (TEA), tripropylamine (TPA) or tributylamine (TBA). The preparation method comprises the steps of: in a process of synthesizing the molecular sieves, carrying out chloropropyl functionalization on the molecular sieves, synthesizing the ionic liquid by using the TEA and the functionalized molecular sieves in a tetrahydrofuran solvent to prepare the catalyst. The invention has the advantages that the prepared catalyst is used for synthesizing the biodiesel fuel, has high activity, can be repeatedly use, and can be expected to be a competitive clean process route.

The invention discloses a method for preparing metronidazole benzoate. The method comprises the following steps of: (1) dissolving metronidazole in a solvent, adding benzoyl chloride and performing esterification reaction at the temperature of 500 to 700 DEG C, wherein the solvent is selected from tributylamine, a tributylamine and toluene binary system compound, a tributylamine and acetone binary system compound and a tributylamine, toluene and acetone ternary system compound; (2) adding cooled unsalted water into an esterification reaction product to completely dissolve a solid, cooling an organic phase, and recrystallizing to obtain a crude metronidazole benzoate; and (3) putting the crude metronidazole benzoate into an ethanol solvent for dissolving, adding activated carbon, decoloring, filtering, cooling, recrystallizing, filtering, washing and drying to obtain a finished metronidazole benzoate. By the method, the metronidazole benzoate with high yield, high environment-friendly performance and high product quality is prepared.

The invention discloses a method for synthesizing citicoline and citicoline without using calcium phosphorylcholine chloride. Acylmorpholine is used as raw material, reacts with ethylene glycol to obtain ethylene glycol ester phosphoromorpholine, and then directly condenses with cytidylic acid to obtain ethylene glycol ester phosphoryl cytidylic acid, and finally tributylamine to ethylene glycol ester The ethylene glycol ester of phosphoromorpholine is ring-opened to give citicoline. There are three steps in the reaction, and the total yield is 78%. The method has cheap and easy-to-obtain raw materials, avoids the use of expensive and toxic DCC and calcium phosphorylcholine chloride, and the yield does not decrease significantly when the reaction scale is expanded to a scale of 500 g. The application of the present invention provides a new synthesis route for the synthesis of citicoline, and has potential application prospects.