564 results about "Propanol" patented technology

Provided herein, inter alia, are ruminant feed or feed additive compositions, and methods of using these feed or feed additive compositions to reduce methane emissions in ruminants while improving animal performance, these feed or feed additive compositions comprise one or more compounds that increase hydrogen production in ruminants, such as, but not limited to, 3-nitroxypropanol (3NOP) and one or more acetogens.

The invention relates to the field of chemical synthesis, in particular to a production process of allyl diethylene glycol dicarbonate, which comprises the following steps: by taking allyl alcohol and dimethyl carbonate as raw materials, carrying out transesterification under the action of a core-shell catalyst to generate dipropylene carbonate; carrying out solid-liquid separation, carrying out reduced pressure distillation to recover methanol and dimethyl carbonate, and then carrying out second-step ester exchange reaction with diethylene glycol under the action of the same catalyst to generate allyl diethylene glycol dicarbonate; and finally, performing multi-stage reduced pressure distillation purification to obtain a high-purity product. According to the core-shell type catalyst, an MCM-41 molecular sieve is used as a carrier, an inner core is formed after amino modification and zirconium ion coordination, then an interface layer and a phenyl modified silicon dioxide shell are used for packaging, and the core-shell type catalyst has high activity, high selectivity and excellent structural stability. The method has the advantages of mild process conditions, recyclable catalyst, high product yield and excellent purity, and is suitable for industrial production.

The invention discloses a self-repairing composite floor for a clean room and a preparation method of the self-repairing composite floor, and the preparation method comprises the following steps: carrying out amination treatment on nano silicon dioxide and carbon quantum dots by using a silane coupling agent, and sulfonating polyethersulfone ketone by using concentrated sulfuric acid; the preparation method comprises the following steps: carrying out curing treatment on epoxy resin, an amine curing agent, N-hydroxyethyl maleimide and tetrakis (3-mercaptopropionic acid) pentaerythritol ester to obtain epoxy-mercaptan resin; the preparation method comprises the following steps: carrying out prepolymerization reaction on vacuum dehydrated polyester polyol, tetrahydroxyethyl ethylenediamine, furanpropanol, diisocyanate, a catalyst, 2, 2 '-thiodiethanol and hydroxyl silicone oil to obtain a star-shaped polyurethane prepolymer, adding epoxy-thiol resin, glyceryl borate, sulfonated polyethersulfone ketone, aminated silicon dioxide, aminated carbon quantum dots and an auxiliary agent, carrying out ultrasonic treatment, and carrying out drying to obtain the star-shaped polyurethane resin. The self-repairing coating material is obtained; and coating the self-repairing coating material on the surface of a base plate, and performing hot-pressing curing molding to obtain the self-repairing composite floor for the clean room.

The present application relates to the field of cosmetic technology, in particular to a quick-drying and shaping spray and a preparation method thereof, in particular to a hair styling product which is quickly dried, permanently shaped and has hair care effect through the synergistic effect of specific film-forming agents and volatile systems, comprising the following components: ethanol 30-50%, aminomethyl propanol 0.1-1%, butanediol 1-5%, octyl acrylamide / acrylate / methyl acrylate copolymer 5-15%, PEG-12 dimethicone 0.5-2%, keratin 0.1-2%, hydrolyzed keratin 0.1-2%, oxidized keratin 0.1-2%, aloe barbadensis leaf extract 0.5-3%, selaginella kurata extract 0.5-3%, radix falatoniae extract 0.5-3%, radix salviae miltiorrhizae extract 0.5-3%, water 20-40%, essence 0.1-2%, cetrimonium chloride 0.1-1%, phenoxyethanol 0.5-1.5%, propylene glycol 1-5%, p-hydroxyacetophenone 0.5-1.5%, chlorphenesin 0.1-0.5%, ethylhexylglycerin 0.5-1.5%.

This application provides a method for preparing compound I-b or a pharmaceutically acceptable salt thereof, wherein (S)-N-methylamino-1-(2-thiophene)-1-propanol reacts with 4-fluorobenzo[1,3]dioxolane in a system containing sodium hydride and potassium benzoate to obtain compound I-b. This method has short steps, mild reaction conditions, and is simple to operate, making it suitable for industrial scale-up; moreover, the obtained product has high purity and low isomer content.

The invention belongs to an allyl alcohol copolymer, and particularly relates to a method for preparing an allyl alcohol copolymer based on an intermediate conversion method, the allyl alcohol copolymer and application of the allyl alcohol copolymer. The method comprises the following steps: reacting allyl alcohol with a hydroxyl conversion reagent to convert hydroxyl into other groups so as to obtain a new allyl monomer; carrying out copolymerization on the monomer and other comonomers under the action of an initiator to obtain a copolymer; the hydroxyl is recovered by removing a conversion group, so that efficient and green preparation of the allyl alcohol copolymer is realized. The hydroxyl is converted into other groups, so that the reactivity rate of copolymerized monomers is closer during copolymerization, and the regulation and control of molecular weight and molecular composition are easy to realize; the high-temperature and high-pressure reaction conditions are avoided, and the safety risk caused by the fact that the highly toxic allyl alcohol raw material is greatly excessive is avoided; the polymerization reaction can be performed under normal pressure, the reaction condition is mild, and the equipment investment and maintenance cost are reduced; and the amount of residual allyl alcohol in the product is greatly reduced.

The invention belongs to the technical field of daily chemicals, and particularly relates to high-temperature and neutral alkyl glycoside sulfonate as well as a preparation method and application thereof. The alkyl glucoside sulfonate provided by the invention is obtained by utilizing hydroxyl activity on a glucoside sugar unit to perform chemical modification, and specifically, 1, 3-dichloro-2-propanol is firstly adopted to perform intramolecular crosslinking on alkyl glucoside, and then 3-chloro-2-hydroxy sodium propanesulfonate is adopted to perform anionic modification. The prepared alkyl glycoside sulfonate has the advantages of being mild, low in irritation, high in hard water resistance, good in foaming performance, low in permeation amount on skin and small in residual amount, and can effectively overcome the defects that alkyl glucoside is high in permeability, high in deproteinization and degreasing capacity, large in damage to skin barriers, weak in thickening effect and the like in personal cleaning products; the method is very suitable for being widely used and popularized in daily chemicals.

The invention relates to a preparation method of a polysiloxane defoaming composition. The polysiloxane defoaming composition is prepared from silicone grease, a polyether-polysiloxane copolymer, a surfactant and polyether. The silicone grease is prepared from the following raw materials: branched polysiloxane, hydrogen-containing polysiloxane, silicon dioxide, a TQ polymer, an addition catalyst and an inhibitor; the polyether-polysiloxane copolymer is prepared from hydrogen-containing silicon resin with a spatial structure, diallyl alcohol polyether and allyl polyether through a reaction. The polysiloxane defoaming agent composition obtained by the invention has the characteristics of excellent foam control and easiness in cleaning.

The invention provides an aqueous electrolyte containing high-receptor fluorinated alcohol, a preparation method of the aqueous electrolyte and application of the aqueous electrolyte in a zinc ion battery, and belongs to the technical field of batteries. The aqueous electrolyte containing the high-acceptor fluorinated alcohol provided by the invention comprises the high-acceptor fluorinated alcohol, the high-receptor fluorinated alcohol is prepared from one or more of difluoropropanol, trifluoropropanol, tetrafluoropropanol and pentafluoropropanol. According to the invention, a high-acceptor fluorinated alcohol cosolvent is selected to carry out anion solvation structure regulation and control on the electrolyte, so that the problem of interface water activity is solved, meanwhile, rapid desolvation which cannot be realized by a traditional cosolvent is taken into account, and the electrochemical properties of the positive electrode and the negative electrode of the aqueous zinc ion battery are synchronously improved.

An absorbent retail paper product made up of cellulose fibers, and having a 1,3-dichloro-2-propanol concentration of non-detected amounts to 50 ppb as measured using the AOAC Official Method 2000.0150, a 3-monochloro-1,2 propanediol concentration of non-detected amounts to 1000 ppb as measured using the AOAC Official Method 2000.0150, a polyaminoamide-epihalohydrin concentration of non-detected amounts to 0.09% as measured by an “Adipate test”, and a cross direction wet strength of 80 to 200 n / m, wherein all of the cellulose fibers contained in the absorbent paper product are non-synthetic, cellulose fibers and the absorbent paper product is substantially free of formaldehyde.

The present application relates to a kind of carbon dioxide mineralization method and carbon dioxide mineralization device.The carbon dioxide mineralization method includes the following steps: mixing absorption liquid and industrial solid waste at room temperature, obtain mortar;Make mortar solid-liquid separation, obtain clear liquid and thick slurry;Carbon dioxide in flue gas is absorbed by clear liquid, obtain carbon-rich absorption liquid;Carbon-rich absorption liquid and thick slurry occur mineralization reaction at 180 DEG C-220 DEG C, obtain mineralized slurry;Make mineralized slurry solid-liquid separation, obtain mineralized ash and mineralized clear liquid;Wherein, absorption liquid includes inorganic base and organic base, organic base includes monoethanolamine, diethanolamine, triethanolamine, 3-methylaminopropylamine, N-methyl diethanolamine, piperazine, diethylene triamine, triethylene tetramine, tetraethylene pentamine and 2-amino-2-methyl-1-propanolamine at least two kinds.The method greatly improves CO2 capture rate and CO2 utilization rate, and organic base consumption is less, absorption liquid regeneration energy consumption is low, and overall economy is good.

The present invention relates to the field of organic synthesis, and more particularly to a method for the oxidation of allylic alcohols to α,β-unsaturated carbonyl compounds in the presence of a zirconium catalyst and a hydrogen acceptor.

The invention belongs to the technical field of fine chemical synthesis, belongs to a nonionic short fluorine chain surfactant, and relates to a preparation method of a fluorinated polyether surfactant. The preparation method comprises the following steps: reacting trimethylolethane with a hydrogen bromide acetic acid solution to prepare an intermediate 1; reacting the intermediate 1 in an alkaline environment without an organic solvent to prepare an intermediate 2; reacting the intermediate 2 with pentafluoropropanol under the action of potassium hydroxide and a catalyst 1 to prepare a fluorinated monomer; finally, the fluorinated monomer is subjected to ring opening polymerization under the action of an initiator and a catalyst 2, and the fluorinated polyether type surfactant is prepared. The method has the advantages of easily available raw materials, mild reaction conditions, simple synthesis, low cost, high yield and short fluorine chain of the product, can replace a long-chain fluorine-containing surfactant which is difficult to degrade, and can be used as an additive in the fields of photoresists, coatings, adhesives and the like. The surface tension can be obviously reduced, the surface defects of a coating can be reduced, and the appearance can be improved by adding a very small amount of the surface tension reducing agent.

Provided are a conductive ink capable of forming metal wiring having low volume resistivity, a method for producing a copper-nickel sintered film, and a copper-nickel sintered film.　This conductive ink comprises copper particles, a copper complex, and a nickel complex, the copper complex being a complex represented by Cu(HCOO)2(L)m and the nickel complex being a complex represented by Ni(HCOO)2(L)n, where L is at least one selected from the group consisting of 2-amino-2-methyl-1-propanol, 1-amino-2-propanol, 2-amino-1-butanol, 2-(methylamino) ethanol, and 2-aminoethanol, m is a natural number of 2-6, and n is a natural number of 2-6, the ratio of copper contained in the copper complex to the total of the copper particles and the copper contained in the copper complex being 0.5-15.0 mass%, and the ratio of nickel contained in the nickel complex to the total of the copper particles, the copper contained in the copper complex, and the nickel contained in the nickel complex being 0.5-7.0 mass%.

This invention belongs to the field of printing consumables technology, specifically relating to a thermally foamed anti-counterfeiting inkjet ink. The thermally foamed anti-counterfeiting inkjet ink comprises an organic fluorescent dye, a solvent, a humectant, a resin, and additives; the solvent includes at least one selected from ethanol, n-propanol, isopropanol, n-butanol, and dimethyl acetate; the humectant includes at least one selected from ethylene glycol, diethylene glycol, and glycerin; and the resin includes rosin resin or modified rosin resin. The thermally foamed anti-counterfeiting inkjet ink has advantages such as extremely low viscosity and surface tension, and good continuous printing performance.

The invention provides a preparation method of (S)-(+)-1-methoxy-2-propylamine hydrochloride, which comprises the following steps: taking (S)-(+)-2-amino-1-propanol as a raw material, carrying out halogenation reaction and amino protection, then carrying out methylation reaction with methanol, and finally carrying out amino deprotection by using hydrochloric acid to obtain the product (S)-(+)-1-methoxy-2-propylamine hydrochloride. The method is suitable for industrial production.

The subject of the invention is N-substituted derivatives of l-(l-phenyl-3-aryl)-lH-pyrazol-4-yl)methanamine with the general formula 1, where ¥ represents CH or N, R1 represents hydrogen, R2 represents no substituent, R3 represents hydrogen, while R4 represents N-propylbenzamide, benzo[b]furan, dihydrobenzo [b] furan, methylenedioxybenzene, ethyl benzoate, or propyl benzoate, substituted accordingly, their method of production and application, and the method of obtaining and application of N-substituted derivatives of l-(l-phenyl-3-aryl)-IH-pyrazol-4-yl)methanamine with the general formula 1, where Y represents C, CH, or N, R1 represents hydrogen or a methyl group, R2 represents a methyl group or no substituent, R3 represents hydrogen or a methyl group, while R4 represents dimethylpyrazole, methylpyrazole, dimethylimidazo[l,2-a]pyrimidine, or isopropoxybenzene, substituted accordingly. The compounds that are the subject of the invention are obtained through reductive amination using borohydride derivatives as the reducing agent, advantageously sodium triacetoxyborohydride, in the amount of 1.4-2.0 eq, amine in the amount of 1.0-1.1 eq, advantageously in slight excess, base, advantageously triethylamine in the amount of 1.0-1.1 eq (in the case of using amine in the form of hydrochloride), and the starting aldehyde. The reaction is conducted in a nonpolar solvent environment, advantageously dichloroethane at a concentration of about 0.1 M. The crude product is purified by column chromatography on silica gel using a methanol in dichloromethane mixture as the eluent, in concentration ranges from 2% to 5%. In order to obtain a solid form and improve the physicochemical parameters, the free bases are converted into hydrochloride form, and then crystallized from a polar solvent, advantageously ethanol or propanol.

The present invention is directed to a method for acidulation of tall oil soap in an alcohol selected from methanol, ethanol and / or iso-propanol. In the method according to the present invention, a mixture comprising sodium salts of fatty acids and rosin acids and an alcohol selected from methanol, ethanol and / or iso-propanol is acidulated using carbon dioxide.

The application provides an organic small-molecule electrolyte additive and application, and relates to the technical field of batteries. The organic small molecule is a carbon-containing three-membered ring alcohol small molecule, specifically, cyclopropanol, and the content of the electrolyte additive is 1%-10% v / v. Due to the metastable three-membered ring structure in the molecular structure of cyclopropanol, the ring-opening reaction is easily generated in the charging and discharging process, the electrode / electrolyte interface structure is reshaped, and the electrochemical performance is improved. Compared with conventional isopropyl alcohol, the cyclopropanol of the application can achieve the effect that excellent electrochemical performance can be presented only by adding a small amount of additive. The cyclopropanol has water solubility and organic co-solubility, and can form a uniform solution, and can be used in monovalent to multivalent ion energy storage systems of lithium, sodium, potassium, zinc, calcium, magnesium, cadmium, tin, aluminum, iron and the like, and will not have a negative impact on the solubility of the electrolyte, maintaining the high ionic conductivity of the electrolyte, which is simple, low in cost and good in application prospect.

The present application relates to the technical field of organic synthesis, and particularly relates to a method for preparing (+)-crispine A by means of biological enzyme resolution. First, 6,7-dimethoxy-3,4-dihydroisoquinoline-2-oxide is subjected to 1,3-dipolar cycloaddition with allyl alcohol to obtain a first compound; then the first compound is added into a sulfonylation reagent and zinc powder to obtain a racemate second compound through a three-step continuous series reaction of primary alcohol sulfonylation, nitrogen-oxygen bond cleavage and ring formation; then the second compound is mixed with vinyl acetate and biological enzyme, and chiral resolution is carried out under the action of the biological enzyme to obtain a third compound with right-handed optical rotation and a fourth compound with left-handed optical rotation; finally, the third compound is mixed with an alkaline reagent and a sulfonylation reagent, and then secondary alcohol sulfonylation is carried out to obtain a fifth compound with right-handed optical rotation; the fifth compound is mixed with a deoxidizing reagent to carry out deoxidation reaction, and (+)-crispine A is prepared. The method is simple, green and environmentally friendly, and can be produced in large quantities.

The application provides a method for preparing potassium dihydrogen phosphate by using raffinate acid, and belongs to the technical field of fine phosphate production. The method for preparing potassium dihydrogen phosphate by using raffinate acid comprises the following steps: mixing raffinate acid and a purifying agent, carrying out impurity removal and purification to obtain purified raffinate acid; the purifying agent comprises ethanol, n-propanol and isopropanol; mixing the purified raffinate acid and phosphate rock powder, carrying out acidolysis reaction, and then filtering to obtain insoluble impurities and a filtrate; carrying out crystallization on the filtrate to obtain heavy calcium; carrying out defluorination on the heavy calcium to obtain defluorinated heavy calcium; mixing the defluorinated heavy calcium, a potassium salt and water, carrying out double decomposition reaction, and then filtering to obtain potassium dihydrogen phosphate and a calcium salt. The water purifying agent used in the application has a polarity lower than that of the raffinate acid, and can form a co-mixed system with the raffinate acid; the solubility of strong polar substances such as metal phosphates in the raffinate acid is lower in the co-mixed system, and the strong polar substances can form a precipitate and be separated, so that the raffinate acid can be purified and impurities removed.

The application discloses high-activity lime milk and a preparation method and application thereof, and comprises the following steps: performing ball milling treatment on calcium oxide, adding organic dispersant butyl formate and n-propanol into the calcium oxide powder after the ball milling treatment, performing first stirring, adding a retarder glycerol drop by drop under the stirring condition, standing for 1.5-2.5 hours, adding water into the reaction system to continue stirring uniformly, and naturally cooling to prepare the high-activity lime milk. The experiment proves that the high-activity lime milk can be used for harmless disposal of phosphogypsum and treatment of phosphorus and fluorine-containing wastewater, can effectively remove phosphates and fluorine ions, and the treated phosphogypsum and phosphorus and fluorine-containing wastewater meet relevant environmental pollution standards. The high-activity lime milk has simple preparation conditions, stable pollutant removal effect and small environmental pollution.

The application discloses a brewing method for improving the quality of a light-flavor type base liquor by using medicinal and edible Chinese herbal medicines, four kinds of medicinal and edible Chinese herbal medicines, namely, clove, mulberry leaf, lophatherum gracile and osmanthus, are adopted, and the suitable adding link and adding proportion of the medicinal and edible Chinese herbal medicines in the brewing process are determined. Compared with the traditional brewing process, the content of fusel oil (defect component) in the base liquor produced by the application is reduced by 13.89%, the content of ethyl acetate (important flavor component) is increased by 71.14%, the content of beta-damascenone is increased by 240.36%, and the contents of defect components such as acetaldehyde, methanol, n-propanol and fusel oil are all significantly reduced.

The disclosure relates to oral care compositions comprising guanidine in free or orally acceptable salt form, a cationic quaternary ammonium compound (e.g., a pyridinium compound) (e.g., cetyl pyridinium chloride (CPC)), a fluoride source, and optionally a zinc source (e.g., zinc lactate or zinc citrate and zinc oxide) as well as to methods of using and of making these compositions. 20 25 20 43 72 12 J un 2 02 5 2 0 2 5 2 0 4 3 7 2 1 2 J u n 2 0 2 5 A B S T R A C T T h e d i s c l o s u r e r e l a t e s t o o r a l c a r e c o m p o s i t i o n s c o m p r i s i n g g u a n i d i n e i n f r e e o r o r a l l y a c c e p t a b l e s a l t f o r m , a c a t i o n i c q u a t e r n a r y a m m o n i u m c o m p o u n d ( e . g . , a p y r i d i n i u m c o m p o u n d ) ( e . g . , c e t y l p y r i d i n i u m c h l o r i d e ( C P C ) ) , a f l u o r i d e s o u r c e , a n d o p t i o n a l l y a z i n c s o u r c e ( e . g . , z i n c l a c t a t e o r z i n c c i t r a t e a n d z i n c o x i d e ) a s w e l l a s t o m e t h o d s o f u s i n g a n d o f m a k i n g t h e s e c o m p o s i t i o n s . 2 0 2 5 2 0 4 3 7 2 1 2 J u n 2 0 2 5

The invention relates to the technical field of solid electrolyte material preparation, and discloses a method for preparing doped oxide-based solid electrolyte powder, and the method comprises the following steps: dissolving a titanium source substance, an aluminum source substance, a lithium source substance and a dopant source substance in one or a mixed solvent of two of ethanol, propanol and isopropanol to form a solution A; dissolving a phosphorus source substance, a lithium source substance and a dopant source substance in one or a mixed solvent of two of purified water and ethanol to form a solution B; under the stirring condition in a reaction kettle, dropwise adding the solution A into the solution B, and continuously stirring after dropwise adding to obtain a liquid precursor. Atom-level and molecular-level mixing dispersion of the oxide-based solid electrolyte raw materials in a liquid phase is realized, and compared with the characteristic that only macromixing can be realized in a ball milling method, the preparation method has the advantages that the preparation process is simple, and the cost is low. The uniformity of each component in the material can be obviously improved, so that the performance of the final material is improved.

The present invention relates to the technical field of organic synthesis. Disclosed is a method for synthesizing allyl alcohol. The synthesis method comprises the following steps: adding a water-soluble acid-resistant high-boiling-point organic solvent to an aqueous allyl acetate solution and stirring the mixture to form a homogeneous solution; then heating the homogeneous solution, and performing a hydrolysis reaction under the action of a solid acid catalyst to obtain a mixture solution containing allyl alcohol; and then distilling the mixture solution to separate out the high-boiling-point organic solvent to obtain a crude allyl alcohol product. The synthesis method provided by the present invention can significantly improve the single-pass hydrolysis conversion rate of allyl acetate at low costs and achieve efficient and continuous industrial production of allyl alcohol. Moreover, the method can realize the separation of allyl alcohol from the high-boiling-point organic solvent simply by means of a simple distillation separation process. The separated organic solvent has high purity and light color and can be reused. The method has no waste liquid and waste residue generated.

The present invention relates to the genetic modification of a bacterium of the genus Clostridium, generally a solvent-producing bacterium of the genus Clostridium, in order to allow the production of propan-2-ol or a mixture comprising propan-2-ol and ethanol by said bacterium. Furthermore, methods, tools and kits for obtaining said bacteria, the genetically modified bacteria obtained and uses thereof are described.

A composition for carbon dioxide (CO2) capture includes 2-aminocyclohexanol, cis-1,2-diaminocyclohexane, meglumine, or combinations thereof. A process of CO2 capture includes mixing a CO2-containing gas with the composition. A system includes a component for receiving a gas and the composition, which absorbs CO2 from the gas. A further composition includes a first amine solvent selected from 2-aminocyclohexanol, cis-1,2-diaminocyclohexane, and meglumine and a second amine solvent independently selected from 2-aminocyclohexanol, cis-1,2-diaminocyclohexane, meglumine, ethyl diethanolamine, dimethylethanolamine, piperidine, 2-amino-2-methyl-1-propanol, and monoethanolamine. A further process includes reacting CO2 with an amine selected from 2-aminocyclohexanol, cis-1,2-diaminocyclohexane, and meglumine.

The invention relates to a method for separating an n-propyl formate-n-propyl alcohol-water mixture by liquid-liquid phase separation coupling extractive distillation, which comprises the following steps of: dividing a raw material into a water phase and an organic phase by using a phase splitter based on the heterogeneous characteristic of an azeotropic system, and carrying out four-tower operation on a rectifying tower (C1), a rectifying tower (C2), a rectifying tower (C3) and a rectifying tower (C4) to obtain an n-propyl formate-n-propyl alcohol-water mixture. The efficient separation of the n-propyl formate-n-propyl alcohol-water mixture is realized. After separation, the molar fraction of n-propyl formate is greater than 99.99%, the molar fraction of n-propyl alcohol is greater than 99.99%, and the molar fraction of water is greater than 99.99%. The method provided by the invention realizes high-efficiency and low-energy-consumption separation of the n-propyl formate-n-propanol-water azeotropic mixture, and has economic benefits and environmental friendliness.

The invention discloses a preparation method of a cyanoborate lithium salt derivative, which comprises the following steps: 1, mixing an alcohol compound, a lithium source compound, a boron source compound and trimethylsilyl cyanide in a polar organic solvent, and filtering after complete reaction to obtain a cyanoborate crude product filtrate; the alcohol compound is selected from one of 2, 2, 2-trifluoroethanol, 2, 2-difluoroethanol, 2-fluoroethanol, 3-hydroxypropionitrile, allyl alcohol and propargyl alcohol; the lithium source compound is selected from one of lithium carbonate and lithium hydroxide; the boron source compound is selected from one of boric acid, diboron trioxide and boron tribromide; the reaction temperature is controlled to be 0-120 DEG C; and 2, adding an inert organic solvent into the cyanoborate crude product filtrate for crystallization, and performing vacuum drying to obtain a finished product of the cyanoborate lithium salt. The method has the advantages of high yield and purity, simple process, convenience in operation and low cost, and is extremely suitable for industrial production.