516 results about "Butanol" patented technology

The invention relates to a preparation method of a graphene oxide loaded nanoparticle functional anticorrosive coating. The preparation method comprises the following steps: (1) preparing a graphene oxide loaded nanoparticle composite material; and (2) preparing the anticorrosive coating, namely weighing dimethylbenzene, n-butyl alcohol and filler according to a ratio, performing ultrasonic treatment, weighing epoxy resin, continuously performing ultrasonic treatment and stirring, dropwise adding a defoaming agent, a flatting agent, a wetting dispersant and a curing agent, stirring, standing, and spraying on the surface of a matrix to serve as the anticorrosive coating. According to the anticorrosive filler prepared by the preparation method, the problem that graphene oxide agglomerates in a coating is solved, nano-particles are introduced to optimize a coating structure, micropores and microcracks in the coating are filled, the compactness of the coating is enhanced, defects in the coating are reduced, and the protective performance of the coating is improved.

The invention discloses a fermentation medium for regulating and controlling a clostridium aerovorans target product and a fermentation method of the clostridium aerovorans target product. The medium comprises a basic component and a regulating component, the basic components comprise ammonium chloride, potassium chloride, magnesium sulfate heptahydrate, sodium chloride, monopotassium phosphate, yeast powder, calcium chloride dihydrate, sodium selenite, nickel chloride hexahydrate, biotin, folic acid, pyridoxine hydrochloride, thiamine, riboflavin, nicotinic acid, D-calcium pantothenate, cobalamin, para aminobenzoic acid and lipoic acid; the adjusting component comprises sodium tungstate, ferrous sulfate and sodium molybdate, sodium tungstate and ferrous sulfate have a forward adjusting effect on increasing the yield of acetic acid, ethanol and butanol in the target product, and sodium molybdate has a reverse adjusting effect on the target product. By optimizing the proportion of trace elements in the culture medium, the clostridium metabolism efficiency is improved, synthesis of a target product is regulated and controlled, and the method is particularly suitable for industrial production of acetic acid, ethanol, butanol and the like.

The present invention provides an electrochromic fabric and a preparation method thereof. The conductive fabric is treated to make its surface rich in active functional groups; oxalic acid and sodium tungstate solution are mixed, hydrochloric acid is added to adjust the pH, and then n-butanol is added to obtain a precursor solution. The fabric is placed in the precursor solution for high-temperature reaction to obtain the electrochromic fabric. By pre-treating the fabric, the number of functional groups on the fabric surface is increased, and adjusting the pH enhances the binding force between WO3 and the fabric; n-butanol ensures the stable formation of tungsten trioxide, promotes the interaction between oxalic acid and the functional groups on the fabric surface, improves the interfacial interaction force between the WO3 crystal nucleus and the fabric, and at the same time affects the crystal nucleus growth direction, forming a nanorod-like or three-dimensional microsphere structure, and improving the electrochromic performance. Through the synergistic cooperation of each process and related parameters, the electrochromic fabric of the present invention has obvious color change, good cycle stability and high mechanical properties; and the process is simple, the cost is low, and it is suitable for industrial mass production.

The invention relates to the technical field of polymers, particularly provides a preparation method of acrylic resin and the acrylic resin, and aims to solve the problem of poor water resistance of the existing acrylic resin. Therefore, the preparation method of the acrylic resin comprises the following steps: S2, mixing and heating a refined styrene compound and a mixed solvent, and adding a catalyst for reaction; s3, stopping heating the reaction system after the reaction in the step S2, recovering to room temperature, and adding an acrylate compound for reaction; s4, adding a modifier into a reaction system after the reaction in the step S3, and reacting; and S5, adding tetraethoxysilane, ammonia water and n-butyl alcohol into the reaction system after the reaction in the step S4 for reaction, then adding an alcohol solvent to precipitate a polymer, and drying to obtain the acrylic resin. The acrylic resin prepared by the preparation method provided by the invention has excellent water resistance and impact hardness.

The invention discloses clostridium and application thereof in fermentation production of alcohol, and belongs to the technical field of industrial microorganisms. The clostridium is a carbon monoxide eating clostridium strain GG6, and is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.34975, and the preservation time is June 23, 2025. The clostridium is a carbon monoxide eating clostridium strain GG6 which is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.34975, and the preservation number is CGMCC No.34975. The carbon monoxide eating clostridium GG6 is obtained by enriching tail gas flue sediments of a coal chemical plant through an abundant culture medium, evolving a screening culture medium and sorting single bacteria, the bacterial strain is fermented by taking synthesis gas (CO / H2 / CO2) as raw material gas to generate acetic acid, ethanol, butyric acid and butanol, the thallus biomass OD600 is more than or equal to 6, the concentration of produced ethanol is more than or equal to 10g / L, the concentration of produced butanol is more than or equal to 2.5 g / L, and the concentration of produced butanol is more than or equal to 2.5 g / L; and commercialized implementation of butanol production through gas fermentation is facilitated.

The invention provides a hole transport layer precursor solution, a hole transport layer, a preparation method and application of the hole transport layer, and a perovskite cell, and belongs to the technical field of hole transport layers. The hole transport layer precursor solution comprises a self-assembled single molecule and an organic solvent; the organic solvent comprises a solvent A, a solvent B and a solvent C; the solvent A comprises more than one of a phosphate ester solvent and an alcohol ether solvent; the solvent A contains four hydrogen bond receptors; the boiling point of the solvent A is 215-290 DEG C; the solvent B comprises more than one of ethanol, isopropanol, normal propyl alcohol, butanol, ethylene glycol and N, N-dimethylformamide; the solvent C comprises more than one of ethyl acetate and normal hexane. A ternary hydrogen bond network is formed through the solvent A, the solvent B and the solvent C, the agglomeration degree of SAM molecules is remarkably reduced, and the device performance is improved.

The invention relates to the technical field of biomass liquid fuels, in particular to a biomass liquid fuel and a preparation method thereof, and the biomass liquid fuel comprises the following components by weight: 40-60 parts of biomass-based methanol; 10 to 20 parts of biomass-based ethanol; 5 to 15 parts of biomass-based n-butyl alcohol; 5 to 10 parts of dimethyl ether; 10 to 20 parts of biodiesel; 1-5 parts of a lignin derivative; 0.1 to 0.5 part of an antioxidant; 0.1 to 0.5 part of a stabilizing agent; 0.5-2 parts of a purification dispersant; 1-3 parts of bio-based glycerol n-butyl ether; according to the invention, a plurality of alcohols (methanol, ethanol and n-butyl alcohol) are synergistically used, so that a series with the carbon chain length gradually increasing from C1 to C4 is formed. According to the design, the volatility and the energy density of the fuel are balanced, the oxygen content of the fuel is increased through hydroxyl (-OH) in alcohol molecules, and more complete combustion is promoted.

The invention belongs to the technical field of daily chemical products, and particularly relates to a gardenia extract as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing cape jasmine powder (cape jasmine pollen or cape jasmine fruit powder) with an extraction solvent (water or an alcohol solution), extracting to obtain a water extract or an alcohol extract, and sequentially extracting the alcohol extract by petroleum ether, dichloromethane, ethyl acetate and n-butyl alcohol to obtain the cape jasmine extract. A petroleum ether extract, a dichloromethane extract, an ethyl acetate extract, an n-butyl alcohol extract and a water extract are obtained respectively. The gardenia extract prepared by the invention has obvious anti-oxidation, moisturizing and anti-allergy effects, and a scientific basis is provided for subsequent development of daily chemical products with anti-oxidation, moisturizing and anti-allergy effects by utilizing gardenia.

The invention belongs to the field of thickening agents, and particularly relates to a multi-component copolymerization thickening agent for fracturing and a preparation method of the multi-component copolymerization thickening agent for fracturing. The preparation method comprises the following steps: reacting acryloyl chloride with 4-(p-hydroxyphenyl)-2-butanol to prepare a phenyl-containing monomer; copolymerizing the modified hydrotalcite, a phenyl-containing monomer, a matrix and a functional monomer to obtain a composite polymer; and drying and crushing the composite polymer to obtain the multi-component copolymerization thickening agent for fracturing. The thickening property and the salt resistance of the multi-component copolymerized thickening agent for fracturing are obviously improved, and the multi-component copolymerized thickening agent for fracturing is high in stability at high temperature and under mechanical shearing.

The invention discloses a two-phase absorbent for capturing CO2, which is characterized by being prepared from the following components in percentage by mass: 25%-30% of N-(2-ethoxyl) ethylenediamine, 0%-3% of N-aminoethyl piperazine, 0%-3% of 2-(1-ethoxyl) pyridine, 10%-13% of N, N '-diethyl ethylenediamine, 15%-20% of N, N'-diethylethylenediamine, 5%-10% of N, N '-diethylethylenediamine, 5%-10% of N, N'-diethylethylenediamine and the balance of water. The invention relates to a cleaning agent which is prepared from the following components in percentage by weight: 1 to 5 percent of N, N-diethylhydroxylamine, 1 to 5 percent of pentamethyldiethylenetriamine, 0 to 2 percent of tert-butylamine ethoxyethanol, 0 to 3 percent of 2-amino-2-methyl-propyl alcohol, 5 to 8 percent of sulfolane, 5 to 8 percent of dimethyl ether, 5 to 8 percent of p-xylene and 5 to 8 percent of n-butyl alcohol. The composition can be prepared by uniformly stirring the components. The preparation method is simple, and the prepared two-phase absorbent can improve the saturated absorption capacity, improve the desorption rate and optimize the performance of the phase change absorbent.

The invention discloses a COF aerogel composite material for PFAS treatment and a preparation method and application thereof, and relates to the field of pollutant adsorption, the COF aerogel composite material comprises the following components: 68.18%-70% of a COF material, 22.73%-90.91% of a CS solution, and 9.09% of a TP solution; the COF material is prepared from 0.0764 mmol of ETTA (Ethylene Terephthalic Acid), 30 mg of ETTA, 0.1528 mmol of a side functional monomer and 3 mL of an o-dichlorobenzene / n-butyl alcohol solvent. The volume ratio of orthodichlorobenzene to n-butanol in the orthodichlorobenzene / n-butanol solvent is 1: 1; and the side functional monomer comprises 0.025 mmol of TFTDA (Trifluorotoluene Diisocynate) / 0.127 mmol of BFB1M, and is named as COF-F1N5. A series of COF / aerogel synthesized by the method provided by the invention has the characteristics of ultralight weight, compression resistance, good stability and small specific surface area loss, overcomes the application limitation of COF powder, is easy to recover, and has better adsorption performance on PFAS.

A process for the manufacture of styrene acrylic copolymers having a renewably-sourced carbon content comprises the steps of: a) subjecting a feedstock comprising a renewably-sourced ethanol to dehydration to produce a renewably-sourced ethylene stream; b) subjecting at least a portion of the renewably-sourced ethylene stream to an olefin-interconversion, to obtain a renewably-sourced propylene; the olefin- interconversion comprising (i) and (ii): (i) ethylene dimerization to obtain n-butenes; (ii) metathesis reaction between n-butenes obtained according to (i) and ethylene to obtain propylene; and c) subjecting a portion of the renewably-sourced propylene to an oxidation reaction to produce acrylic acid; d) subjecting a portion of the renewably- sourced propylene to a hydroformylation reaction with syngas to produce n-butyraldehyde; e) subjecting the n-butyraldehyde to hydrogenation to produce n-butanol; f) esterifying acrylic acid obtained in step c) and the n-butanol to produce n-butyl acrylate; g) subjecting ethylene to an alkylation reaction with benzene to produce ethylbenzene; h) subjecting the ethylbenzene to a dehydrogenation reaction to produce styrene; i) copolymerizing the styrene and the n-butyl acrylate to produce a styrene acrylic copolymer. The process has a high renewably-sourced carbon content, in particular an increased renewably-sourced carbon content with respect to the renewably-sourced carbon content available in a cracker-based process.

This invention belongs to the field of lithium-ion battery technology, specifically relating to a method for constructing Si@COF-Co materials using porphyrin COF as a conductive nano-protective layer for nano-silicon and its application. The invention first adds a methanol solution of PEI to a methanol solution of nano-silicon, then dries it at high temperature to obtain PEI-modified nano-silicon Si-PEI. Next, Si-PEI and PVP are dispersed in o-dichlorobenzene / n-butanol, and then COF monomer and glacial acetic acid are added. After maintaining the mixture at 110-130℃ for 70-80 hours, it is washed, dried, and ground to obtain Si@COF. Finally, Si@COF and cobalt acetate tetrahydrate are dispersed in methanol, reacted at room temperature, and then washed, dried, and ground to obtain Si@COF-Co. This invention offers a simple, high-yield, and effective method. The synthesized material effectively alleviates the volume expansion of nano-silicon, improves the stability and reversibility of the electrode material, and can be used as a negative electrode material for lithium-ion batteries.

The present technology relates generally to compositions comprising 3-amino-2- butanol. In particular, the present technology relates to compositions that comprise 3-amino- 2 -butanol for the manufacture of batteries, semiconductor devices, and other electronic materials and electrical devices.

The invention relates to a process for extracting alcohols from an initial mixture (1) comprising alcohols in aqueous phase, with:a distillative separation by an isopropanol-butanol distillation column (III) equipped at the top with a condenser (c3), intended for separating said mixture into a water-isopropanol azeotrope stream (6) at the top and into a water-butanol azeotrope stream (7) at the bottom,a distillative separation intended for separating the water-butanol azeotrope stream into water and butanol, by a hetero-azeotropic distillation system comprising at least one water-recovering water column (IV) and at least one butanol (9)-recovering butanol column (V) equipped with a reboiler (r5),such that a heat transfer is performed from the top water-isopropanol azeotrope stream (6) entering the condenser of the isopropanol-butanol distillation column (III), to the stream entering the reboiler of the butanol column (V).

The invention relates to the technical field of waste gas treatment, and particularly discloses waste gas treatment liquid for treating large-air-volume low-concentration waste gas through a water-based method. The waste gas treatment liquid for treating the large-air-volume low-concentration waste gas through the water-based method comprises a surfactant, a defoaming agent, a dissolution accelerant and water. Wherein the surfactant can be selected from any one or more of polyoxyethylene alkyl ether, polyoxyethylene alkyl ether and polyoxyethylene fatty acid ester; the dissolution accelerant can be selected from any one or more of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether and triethylene glycol monobutyl ether; the defoaming agent is any one or more of butanol, dimethyl silicone oil, silicone and polyether modified polysiloxane. When the waste gas absorption liquid obtained in the invention is used for treating waste gas, the absorption efficiency of methanol, butanol, benzene, toluene, xylene, ethyl acetate, dichloromethane and acetone is obviously improved, and the absorption efficiency of the waste gas absorption liquid on aromatic hydrocarbon, halogenated hydrocarbon, alcohol, ketone and ester pollutants is improved.

One form of the present invention provides a double metal cyanide catalyst having excellent catalytic activity and a preparation method thereof. Specifically, the double metal cyanide catalyst according to one form of the present invention is characterized in that it is prepared using a complexing agent comprising tertiary butanol, a linear or cyclic (C2-C12) aliphatic polyol, and a polyalkylene glycol.

The invention discloses a preparation method of hydrophobic modified silicon dioxide aerogel with low thermal conductivity. The preparation method comprises the following steps: by taking water glass-tetraethoxysilane as a composite silicon source and formamide-ethylene glycol as a retarder, hydrolyzing and mixing, and then adjusting the pH value to trigger sol-gel reaction to form wet gel; after tert-butyl alcohol aging and solvent replacement, hexamethyldisiloxane and hexamethyldisilazane dual modifiers are used for synchronous hydrophobic modification and sodium removal, and the hydrophobic modified low-thermal-conductivity silicon dioxide aerogel with a porous nanostructure is prepared through freeze drying. The method uses the composite silicon source to cooperate with the gel, so that the raw material cost is reduced; a double-modifier synchronous sodium removal process is green and efficient; the obtained aerogel has low thermal conductivity and excellent hydrophobicity, is suitable for the fields of building thermal insulation, industrial thermal insulation, aerospace and the like, and has the advantages of economy and environmental protection.

The invention discloses low-thickening-agent composite calcium sulfonate lubricating grease and a preparation method thereof, and relates to the technical field of composite calcium sulfonate lubricating grease preparation, the low-thickening-agent composite calcium sulfonate lubricating grease comprises, by weight, 55-65 parts of base oil, 20-30 parts of a thickening agent and 1-8 parts of an anti-wear reagent at extreme pressure, the base oil is mineral oil and synthetic oil including 150BS, 500N, poly-alpha olefin and mixed oil of 150BS, 500N and poly-alpha olefin; according to the low-thickening-agent composite calcium sulfonate lubricating grease and the preparation method thereof, the proportion of long-chain-line sulfonic acid and heavy alkyl benzene sulfonic acid in high-base-number synthetic calcium sulfonate and the product index are equivalent to those of foreign imported products, special functional additives and high polymer materials are added, and the colloid structure of the system is strictly controlled; in the production process, flammable and explosive phase inversion agents such as isopropanol and n-butyl alcohol which pollute the environment do not need to be added, and the product belongs to an environment-friendly product.

The invention relates to the technical field of molybdenum powder preparation, in particular to superfine molybdenum powder and a preparation method thereof.The preparation method comprises the steps that ammonium molybdate is subjected to ball milling and sieving to obtain ammonium molybdate powder, and the ammonium molybdate powder and a gluconic acid solution are mixed, stirred and dissolved to obtain a suspension solution; adding an azeotropic solution of n-butyl alcohol and water into the suspension solution, heating, stirring and dissolving to obtain a mixed solution; distilling the mixed solution, and cooling after the mixed solution is evaporated to obtain a solid ammonium molybdate precursor; the preparation method comprises the following steps: dispersing an ammonium molybdate precursor in an azeotropic solution, heating and roasting the ammonium molybdate precursor in air to obtain MoO3, carrying out first-stage reduction on the MoO3 in a hydrogen atmosphere to obtain MoO2, and then carrying out second-stage reduction to obtain the super molybdenum powder. And meanwhile, by regulating and controlling the mixing ratio of ammonium molybdate and the azeotropic solution, the morphology and size of the molybdenum powder can be remarkably adjusted, so that the molybdenum powder which is single and regular in morphology, uniform in distribution, high in yield, simple in preparation process and capable of being rapidly produced on a large scale is prepared.

The invention discloses a catalyst and a process for preparing anhydrous tert-butyl alcohol through isobutene hydration, and belongs to the field of industrial catalysis. The preparation method of the catalyst comprises the following steps: after a polyethylene glycol-polyglycerol-polyethylene glycol triblock polymer, tetraethyl orthosilicate and deionized water are subjected to a first mixing reaction, sodium aluminate and sodium tungstate are added for a second mixing reaction to obtain a mixture, the mixture is sequentially subjected to calcination and HCl treatment to obtain a pretreated catalyst carrier, and the pretreated catalyst carrier is dried to obtain the catalyst. The pretreated catalyst carrier, the modified ionic liquid and N, N-dimethylformamide are subjected to a third mixing reaction, and the catalyst is prepared. In the prepared catalyst, the oleophylic group adsorbs isobutene, the hydrophilic group can interact with water molecules, and the two effects cooperate with each other to form a microenvironment beneficial to reaction on the surface of the catalyst, so that the conversion rate of isobutene and the selectivity of anhydrous tert-butyl alcohol are improved.

The utility model relates to an MTO (Methanol To Olefins) concentrated water treatment device, which comprises a circulating liquid phase hydrogenation unit and a dehydration unit, aldehyde and ketone components in MTO concentrated water are converted into mixed alcohol through circulating liquid phase hydrogenation, and most of water in the mixed alcohol is removed through flash evaporation degassing, azeotropic distillation and zeolite membrane dehydration treatment. According to the MTO concentrated water treatment device, a mixed alcohol product with low water content (about 2wt%) and waste water with low alcohol content (less than 0.2 wt%) are obtained, the technical index of the obtained mixed alcohol product is higher than the national standard of alcohol-based liquid fuel GB16663-1996, and ethanol, isopropanol and 2-butanol products can be obtained through further separation. The additional value is also improved, and the purposes of improving the quality and improving the efficiency are achieved.

The invention relates to the technical field of electrocatalytic oxygen reduction, in particular to a three-dimensional covalent organic framework material and a preparation method and application thereof. The preparation method of the novel material comprises the step of enabling a monomer 4, 4 ', 4', 4 '''-(1, 4 (1, 4)-dibenzocyclohexanoic acid-12, 13, 42, 43-tetrayl) tetrabenzaldehyde with a three-dimensional structure to react with 5, 10, 15, 20-tetraaminophenyl cobalt porphyrin, 1, 2-dichlorobenzene, 1-butanol and acetic acid according to a certain proportion to obtain the novel material. The novel material provided by the invention is simple in preparation process and good in stability, has very excellent catalytic capability on the oxygen reduction reaction of the cathode of the fuel cell, is stable in performance, and is a new energy material with great development potential and wide market prospect.

Marker composition comprising water, 1-10 wt.% non-ionic surfactant selected from alkyl polyglucosides, alcohol ethoxylates and alcohol ethoxylate propoxylates, or mixtures thereof, 1-5% organic solve

The invention discloses a preparation method of a hydrotalcite modified fluorinated graphene corrosion-resistant self-repairing coating. The preparation method comprises the following specific steps: step 1, carrying out cleaning treatment on the surface of a to-be-treated matrix; step 2, adding fluorinated graphene into an ethylene glycol aqueous solution, and ultrasonically stirring and dispersing to obtain a solution A; the preparation method comprises the following steps: dissolving Zn (NO3) 2.6 H2O and Al (NO3) 3.9 H2O in water to prepare a solution B; dissolving a corrosion inhibitor in water to obtain a solution C; then, mixing the solution A, the solution B and the solution C, and reacting to obtain FG coated LDH powder; and step 3, mixing the FG coated LDH powder prepared in the step 2 with n-butyl alcohol and xylene, then adding epoxy resin, mixing, then carrying out ball milling, uniformly mixing a ball milling product with a polyamide curing agent, coating the surface of a to-be-treated matrix with the mixture, and curing to obtain the coating.

The invention discloses 1K varnish as well as a preparation method and a spraying method thereof, relates to the technical field of automobile coating varnish, and solves the problems that the existing 1K varnish is difficult to be matched with a water-based colored paint system and is poor in performance. Comprising acrylic polyol, a thermosetting hydroxylated acrylic copolymer solution, thermosetting hydroxylated acrylic resin, polycarbonate diol, amino resin, blocked isocyanate resin, a leveling agent, a catalyst, an aging aid, a wetting dispersant and a solvent. The amino resin comprises butylated amino resin and a trifunctional melamine cross-linking agent; bYK306 and BYK358N are used as the flatting agents; the catalyst comprises an acid catalyst and a metal catalyst; the aging auxiliary agent comprises an ultraviolet light absorber 80 and a light stabilizer uv-93; the wetting dispersant is BYK-161; the solvent is prepared from butyl acetate, DBE, ethyl ethoxypropionate, ethylene glycol butyl ether acetate and n-butyl alcohol. The method is suitable for being matched with a water-based production line and is wide in applicability.

The invention provides totally-closed connecting paint for a ship body below a ship waterline and a preparation method of the totally-closed connecting paint. The method comprises the following steps: A1, mixing glass fibers and a base material; a2, hydroxyethyl cellulose ether, propylene glycol, n-butyl alcohol and m-xylene are added; a3, adding titanium dioxide and iron oxide red; a4, adding the silicon resin emulsion and the common emulsion; a5, adding the polydimethylsiloxane and the thickening agent; and A6, finally adding the defoaming agent. And each step has a specific proportion and a specific mixing condition, so that the quality and the performance of the coating are ensured. The totally-closed connecting paint can reduce chemical corrosion and electrochemical corrosion of a ship body and prolong the service life of a ship.

The invention discloses a preparation method of an astragalus extract with a uric acid reducing effect, and belongs to the technical field of biological medicines. The method comprises the following steps: concentrating an ethanol extract of radix astragali, extracting by using n-butyl alcohol, ethyl acetate and petroleum ether respectively, and concentrating an extract to obtain n-butyl alcohol, ethyl acetate and petroleum ether extraction parts and residual parts respectively, so as to obtain an n-butyl alcohol extract, namely the radix astragali extract for reducing uric acid. Efficacy experiments show that the normal butanol extraction part of the ethanol extract of the astragalus membranaceus can obviously reduce the serum uric acid level (SUA) of a mouse with hyperuricemia, inhibit the activity of xanthine oxidase (XOD) and effectively improve kidney injury caused by the hyperuricemia. The uric acid reducing effect of the radix astragali n-butyl alcohol extract is close to that of a clinical drug allopurinol, and the radix astragali n-butyl alcohol extract has wide development and application prospects in the aspect of relieving hyperuricemia.

The invention discloses a method for separating and refining fusel oil in Fischer-Tropsch synthesis, which comprises the following steps: carrying out pressurized rectification treatment on fusel oil to remove acids, C4 + alcohol and part of n-butyl alcohol, carrying out dehydration treatment on tower top steam after removal through membrane separation, carrying out normal-pressure rectification treatment on a dehydrated intermediate product to remove light components, and carrying out vacuum distillation treatment on the dehydrated intermediate product to obtain the fusel oil. Carrying out reduced pressure rectification treatment on the tower bottoms after the light components are removed to remove propyl alcohol and butanol, carrying out tower top steam condensation on one part of the tower bottoms, returning the other part of the tower bottoms to the tower, extracting an ethanol finished product, carrying out normal pressure rectification treatment on the tower bottoms to remove isopropyl alcohol, carrying out normal pressure rectification treatment on the tower bottoms after removal for separation, and obtaining an n-propyl alcohol finished product at the tower top; and obtaining an n-butyl alcohol finished product from the tower kettle. Through cooperative coupling of multistage rectification and membrane separation, stage-by-stage efficient separation and resource utilization of components with different polarities and boiling points in fusel oil are realized, and three types of products of ethanol, normal propyl alcohol and normal butanol are synchronously produced.

The invention discloses a method for synthesizing butyl zirconate and butyl hafnate, and relates to the technical field of material synthesis, and the method comprises the following steps: mixing and stirring: putting a solvent n-heptane into a reaction kettle, putting a certain amount of hafnium tetrachloride (or zirconium tetrachloride) solid into the reaction kettle, putting a certain amount of n-butyl alcohol into the reaction kettle, and stirring for 30-60 minutes; finally, stirring; organic synthesis: introducing ammonia gas in the stirring process in the step S1, and setting the reaction temperature to be 45 DEG C or below and the reaction pressure to be normal pressure; performing solid-liquid separation; organic distillation; compared with the existing process, the preparation method has the advantages that the preparation cost of the product is greatly reduced through an organic synthesis and secondary distillation treatment mode; and secondly, in the preparation process, the generation of pollutants, especially triethylamine hydrochloric acid, is reduced, the generation of hazardous wastes is avoided, only deacidification and ammonium chloride removal treatment are needed, and compared with the existing process, the cost is greatly reduced, and the environmental protection benefit is relatively obvious.