101 results about "Tributylamine" patented technology

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 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 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 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 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.

Provided is a method for producing a chloroformate compound safely, with high efficiency and in a large quantity. A chloroformate compound can be produced by mixing a solution of triphosgene, an amineand an alcohol compound together in a flow-type reactor to cause the reaction of these components. Alternatively, a chloroformate compound can be produced by mixing a solution of triphosgene with a solution of an amine and an alcohol compound in a flow-type reactor to cause the reaction of these components. The amine is preferably tributylamine, and the amine is preferably used in an amount of 0.8 to 3 equivalents relative to the amount of the alcohol compound.

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.

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 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.