48 results about "ACETIC ACID LIQUID" patented technology

The invention relates to a method for preparing alcohol by acetic acid gas phase hydrogenation. A reaction system comprises acetic acid, hydrogen and a catalyst; the reaction temperature is 120-300 DEG C; the reaction pressure is 1.0-20.0MPa; the space velocity of acetic acid liquid is 0.5-10.5h<-1>; the molar ratio of H2 to acetic acid is 1-250; the catalyst takes activated carbon as a carrier; and main active components comprise one or two of transitional metals such as W and Mo. The addition agent is one of or more of precious metals such as Pd, Re, Pt, Rh and Ru and the like; and the acetic acid and the hydrogen can be converted into alcohol with high activity and selectivity under the action of the catalyst.

The invention relates to a red yeast vinegar having the blood pressure lowering function; and the red yeast vinegar is prepared by the following processes of: taking glutinous rice as a raw material, steaming and boiling the glutinous rice, and then adding distillers yeast made of red yeast and supplementary materials as well as functional red yeast wine lees with the weight percent of 10 percent to 20 percent of the raw material for undergoing initial fermentation and secondary fermentation, then pressing the mixture to make the red yeast yellow wine, and recovering the red yeast wine lees, and the red yeast wine is made into the red yeast vinegar having the blood pressure lowering function through the acetic acid liquid fermentation; the invention fully utilizes the supplementary material of red yeast wine lees for producing the red yeast wine, thereby increasing the added value and preparing the red yeast vinegar with high GABA content and blood pressure lowering function; and the red yeast vinegar has an unexpected effect to the treatment and prevention of hypertension, and also has the auxiliary blood pressure lowering function.

The invention discloses a rapid synthesis method for lauroyl-sodium methyl taurate. The rapid synthesis method comprises the following steps: mixing lauric acid with boric acid, acetic acid and liquid paraffin; introducing nitrogen to replace air, heating to 100 DEG C to 110 DEG C and mixing for 10min; after heating, slowly dropwise adding N-sodium methyl taurate aqueous solution of which the mass fraction is 46 percent to 48 percent, controlling dropping speed so as to avoid the phenomenon that a large number of foams are generated from a reaction system and overflow, and continue to heat to 220 to 226 DEG C after the N-sodium methyl taurate aqueous solution is dropwise added and reacting for 110 to 150 minutes; stop heating after the reaction is ended, injecting water and cyclohexane in sequence after material temperature is lower than 130 DEG C to dissolve feed liquid, standing for layering, and then, recrystallizing and filtering aqueous solution on the lower layer, and then, recrystallizing and filtering a filter cake with ethyl alcohol and vacuum drying to obtain the lauroyl-sodium methyl taurate; after the cyclohexane is evaporated from an upper oil layer, a paraffin layer is recycled.

The invention provides a preparation method of a tourmaline/magnetic chitosan microsphere treatment agent which is prepared by dissolving and uniformly mixing mixed powder of tourmaline and magnetic chitosan microspheres in sodium alginate and polyvinyl alcohol, and solidifying and balling. The magnetic chitosan microsphere is prepared by using superparamagnetic ferroferric oxide, 1 to 10 weight percent of chitosan acetic acid liquid, liquid paraffin, Span-80 and glutaraldehyde as reaction materials through an emulsion crosslinking method, wherein the mass ratio of the superparamagnetic ferroferric oxide to the chitosan acetic acid liquid is 1:(1-10), the volume ratio of the liquid paraffin to the Span-80 is (10-100):1, the volume ratio of the chitosan acetic acid liquid of superparamagnetic ferroferric oxide to mixed liquid of paraffin-Span-80 is 1:(1-10), and the volume ratio of the mixed liquid of superparaferroferric oxide, paraffin and Span-80 to glutaraldehyde is (5-50):1. According to the water treating agent, the removal rate of volatile phenol in water is between 80 and 90 percent, the removal rate of chromium in water is 93 percent; and the magnetic chitosan microsphere treating agent has the advantages of large adsorption capacity, high purification efficiency, low cost, regeneration, no toxicity, no pollution to environment and the like.

The invention discloses a method for preparing ethanol by acetic acid gas phase hydrogenation. The method is characterized in that a reaction system comprises acetic acid, hydrogen and a catalyst; a reaction temperature is in a range of 120 to 300 DEG C; reaction pressure is in a range of 1.0 to 20.0MPa; an airspeed of an acetic acid liquid is in a range of 0.5 to 10.5h<-1>; a mole ratio of H2 to acetic acid is in a range of 1-250; the catalyst utilizes active carbon as a carrier and contains precious metal Pd and/or Pt as a main active ingredient; and one or more auxiliary agents are selected from Au, Ag, Fe, Re, Cu, Ru and their oxides. Through the catalyst, high activity and high selectivity transformation of an acetic acid and hydrogen into ethanol is realized.

The invention belongs to the technical field of aquatic product processing and discloses a rapid quantitative determination method in an extraction process of fish collagen and an application of the quantitative determination method. The method comprises the following steps: preparing a collagen liquid by using an acetic acid liquid; after dyeing by using sirius red, centrifuging and determining the absorbance of liquid supernatant; comparing a standard curve; and quantifying the content of the collagen. According to the quantitative determination method, the specific binding of the sirius red and the collagen is utilized; after the centrifuging, the absorbance of the liquid supernatant can be determined under the condition of a special wavelength of 540nm; and the content of the collagen is determined. According to the quantitative determination method, the centrifuged liquid supernatant is determined so that a solvent is saved and the influences on specific matters formed by the collagen and the sirius red, caused by the liquid and other reagents, are avoided; the recovery rate of a sample is 95.7-104.7% and the requirements of analytical researches are met; the variable coefficient of a parallel sample is 0.35% and the stability is very good; and the quantitative determination method is applied to quantifying the collagen in an operation process and the present determination can be realized.

The invention relates to the technical field of biological energy, in particular to a collision type separator and a biomass comprehensive utilization system. The collision type separator is formed by combining an exhaust pipe, a separator body, turbine blades, a gas inlet pipe, a separation device and a blowdown device. The biomass comprehensive utilization system is formed by combing a carbonization furnace, a first separation unit, the collision type separator, a second separation unit, a third separation unit, a draught fan, a fourth separation unit and a gas storage cabinet. Through the collision type separator, the decoking effect is improved, meanwhile, separation of tar and acetic acid liquid can be realized, and the industrial cost is reduced. The decoking effect of the biomass comprehensive utilization system is good, no wastewater is generated in the production process, equipment has no blockage risk, and continuous and automatic production can be realized.

The invention discloses a drug for treating and preventing fracture, which is prepared by the ingredients of kelp, marine alga plant rich in algin and acetic acid or acetic anhydride. The preparation method of the drug is as follows: a, getting kelp and marine alga plant rich in algin, drying and grinding to powder, soaking the powder in acetic acid, wherein, the amount of the acetic acid added is in a standard that the acetic acid immerses the marine alga powder to carry out reaction for 2-3 weeks at normal temperature, pouring out the acetic acid liquid after the reaction is finished, drying under normal temperature, after drying, neutralizing through sodium hydroxide or other alkaline substance, after neutralizing, drying under normal temperature, and getting the substance used for preparing the drug for promoting fracture healing; and b, getting the kelp and the marine alga plant rich in the algin, drying and grinding to powder, soaking the powder in the acetic anhydride, the amount of the acetic anhydride added is in a standard that the acetic anhydride immerses the marine alga powder, then adding sulfuric acid for catalytic reaction, wherein the amount of the sulfuric acid added is 0.3% of the amount of the acetic anhydride, pouring out the acetic acid liquid after the reaction is over, drying under normal temperature, after drying, neutralizing through sodium hydroxide or other alkaline substance, after neutralizing, drying under normal temperature, and finally getting the substance used for preparing the drug for promoting fracture healing.

The invention discloses a corn straw carbonization production organic fertilizer, which comprises the following raw materials in parts by weight: wherein, the main raw materials are corn straw charcoal, mixed sheep manure, a fermentation agent, an adhesive and a forming auxiliary agent; the ingredients are wood acetic acid liquid; According to the invention, the corn straw and the sheep manure aremixed, the utilization rate of the fertilizer is improved through the characteristics of adsorption and slow release, the utilization rate of the fertilizer is improved, and the soil improvement function and the fertilizer efficiency are balanced; The method comprehensively utilizes the recovery of nitrogen and phosphorus elements in the corn straw carbon and the sewage and does not discharge waste water, waste liquid and waste residues in the production, and all indexes meet the industry standard of the organic fertilizer; Compared with the prior art, the invention is characterized by reducing planting component, improving the economic benefit, and giving consideration to both soil improvement function and fertilizer synergistic effect.

The invention relates to an ethanol production method. The problems of strict catalytic reaction conditions and low once-through conversion rate of acetic acid hydrogenation catalysts in the prior art in the ethanol production process are solved in the invention. The method comprises the following steps: allowing raw materials comprising acetic acid and hydrogen to contact and react with a composite bed catalyst composed of a Pd-based catalyst and a Cu-based catalyst at a reaction temperature of 180-270DEG C under a reaction pressure of 0.5-5.0MPa under an acetic acid liquid volume air speed of 0.1-0.5h<-1> to generate ethanol and water, wherein a molar ratio of hydrogen to acetic acid is 1:0.1-0.01; and separating to obtain ethanol. The above technical scheme well solves the problems, and the method can be used in the industrial production of ethanol through acetic acid hydrogenation.

The invention relates to a montmorillonite modified melamine/chitosan painting mist coagulant. The montmorillonite modified melamine/chitosan painting mist coagulant is characterized by being composed of an individually-stored montmorillonite modified melamine liquid and an acetic acid liquid of chitosan, wherein during use, a volume ratio of the montmorillonite modified melamine liquid to the acetic acid liquid of the chitosan is 1 to (0.2-1.0). A preparation method of the montmorillonite modified melamine liquid comprises the following steps: mixing a crosslinked polymer, which is generated by carrying out condensation reaction on melamine, urea and formaldehyde, with the montmorillonite liquid in a mass ratio of (1-5) to 1, regulating a pH value of the mixed liquid to 1.8-2.2 at a temperature of 40-50 DEG C, and ageing the mixed liquid. The painting mist coagulant has painting mist treatment efficiency over 95%; the raw materials are wide in source and low in price, small in dosage for treating paint-containing wastewater and obvious in cost performance advantage; and the preparation process is simple, convenient in treating spraying paint wastewater and simple in process.

The invention provides a drinking water treatment agent which is prepared by dissolving and uniformly mixing mixed powder of tourmaline and magnetic chitosan microspheres in sodium alginate and polyvinyl alcohol, and solidifying and balling. The magnetic chitosan microsphere is prepared by using superparamagnetic ferroferric oxide, 1-10wt% chitosan acetic acid liquid, liquid paraffin, Span-80 and glutaraldehyde as reaction materials through an emulsion crosslinking method, wherein the mass ratio of the superparamagnetic ferroferric oxide to the chitosan acetic acid liquid is 1:(1-10), the volume ratio of the liquid paraffin to the Span-80 is (10-100):1, the volume ratio of the chitosan acetic acid liquid of superparamagnetic ferroferric oxide to mixed liquid of paraffin-Span-80 is 1:(1-10), and the volume ratio of the mixed liquid of superparaferroferric oxide, paraffin and Span-80 to glutaraldehyde is (5-50):1. According to the water treatment agent, the removal rate of volatile phenol in water is between 80 and 90 percent, and the removal rate of chromium in water is 93 percent; and the magnetic chitosan microsphere treating agent has the advantages of large adsorption capacity, high purification efficiency, low cost, regeneration, no toxicity, no pollution to environment and the like.

The invention relates to a method for preparing ethyl alcohol by acetic acid hydrogenation and mainly solves the problem that ethyl alcohol selectivity in the prior art is low. By using the method for preparing the ethyl alcohol by acetic acid hydrogenation, two flows or multiple flows of acetic acid material enter various hydrogenation reaction stages, acetic acid liquid feeding or acetic acid partial liquid feeding is among the reaction stages, the temperature rise of an acid hydrogenation reactor catalyst bed is effectively controlled, direct heat exchange cooling and material supplementing are enabled, hydrogen acid ratio of an acetic acid hydrogenation reaction system is greatly reduced with each reaction area high in hydrogen acid ratio, and a technical scheme ensuring high ethyl alcohol selectivity well solves the above problems and is applicable to the preparation of ethyl alcohol by acetic acid hydrogenation.

The invention discloses a condensation type purifying series apparatus for combustible gas from biomass pyrolysis. The apparatus comprises a dust gravity type separator, an impact interception type separator, a condensation type oil-water separator and a multilayer filtering purifier which are connected by pipeline in series connection and are installed in a case assembled by thermal insulated laminates, and an evaporator coil pipe equipped in the case is connected with a refrigeration compressor and a condenser for forming a complete refrigeration system in the case. Dedusting and separating are carried out at -1-4 DEG C, charcoal dust, tar and acetic acid liquid in the crude combustion gas can be rapidly condensed into liquid state droplets for separation, so that the problems such as bad separating and purifying effects in the prior art are solved, combustion heat of the combustion gas is improved, more by-products can be obtained, production operation cost is reduced, multiple types of secondary pollutions are prevented, and economic benefit of enterprise is increased.

The invention discloses a yellow fluorescent graphene quantum dot, a method for preparing the same and application of the yellow fluorescent graphene quantum dot. The method includes steps of S1, mixing Julolidine solid, absolute ethyl alcohol liquid and acetic acid liquid with one another according to a feed ratio of 0.1 g:30 mL:2 mL and then carrying out ultrasonic treatment under the room-temperature condition for 10 minutes; S2, placing reaction liquid in high-pressure reaction kettles after the ultrasonic treatment is carried out on the reaction liquid, and preparing graphene quantum dotsby the aid of solvothermal processes; S3, purifying reaction liquid by the aid of dialysis processes and concentrating, freezing and drying dialysate to obtain the yellow fluorescent graphene quantumdot. The yellow fluorescent graphene quantum dot, the method and the application have the advantages that the method includes simple technologies and is low in cost, the yellow fluorescent graphene quantum dot prepared by the aid of the method has uniform particle sizes, is nontoxic, can be used as a fluorescent probe to be directly applied to detecting thiosulfuric acid radicals and hydrogen peroxide in water samples and serum from human bodies and can be conveniently and quickly operated, and accurate detection results can be obtained.

The invention discloses an acetic acid production wastewater treatment process which comprises the following steps: adding a hydrogen peroxide aqueous solution into acetic acid production wastewater, and reacting hydrogen peroxide with iodide ions in the wastewater to generate elemental iodine; filtering out the solid iodine elementary substance generated by the reaction from the wastewater, wherein the residual liquid is a liquid-phase product 1; adding activated carbon powder into the treated liquid phase product 1; filtering the treated liquid phase product 1, and separating out activated carbon in the liquid phase product 1 so that residual liquid is a liquid phase product 2; and adding an aqueous hydrogen peroxide solution into the treated liquid-phase product 2, reacting hydrogen peroxide with acetaldehyde in the liquid-phase product 2 to generate acetic acid, converting the liquid into a liquid-phase product 3, and conveying the liquid-phase product 3 to an acetic acid production system to separate acetic acid. According to the acetic acid production wastewater treatment process, iodine in the wastewater can be converted into iodine simple substances to be recycled, acetaldehyde in the wastewater is converted into acetic acid, the yield of acetic acid is increased, and environmental pollution is avoided.

The invention discloses a biomass pyrolysis method, which comprises the following steps: putting biomass in a rectangular container with an opening, wherein the bottom plane of the container is inclined, the short wall of the container is provided with a flue along the bottom part, the other three walls of the container are respectively provided with an air flue along the bottom part, the flue is communicated with a plurality of ventilation channels in the bottom part of the container, the bottom surface of the container is provided with a plurality of air sucking channels which are communicated with the ventilation channels, and the walls and the bottom of the container are provided with ventilation holes; adopting medium and low heat, after 1-2h, using carbon powder with the water content being 30% to cover the surface of the biomass to seal and break off oxide, and carrying out pyrolysis for 6-8h; and carrying out cooling separation, cyclone separator, temperature pyrolysis, gas cooling baffling, catalysis, cleaning, dehydration, and multiple-layer filtering to crude gas to obtain pyrolytic combustible gas, liquid tar, acetic acid liquid and unshaped carbon. By the method, no polluted air and polluted water are emitted. The method has the characteristics of high gasification efficiency, accurate composition extraction composition and environment protection as well as energy conservation.

The invention discloses a method for preparing a low-particle size ternary cathode material. The method comprises the following steps: by taking lithium chloride, nickel chloride, cobalt chloride and aluminum chloride as raw materials, and polyvinylpyrrolidone as a dispersing agent, dissolving in absolute ethyl alcohol, performing sealed heating reaction so as to obtain a coated gel liquid, performing reduced pressure distillation and laminated backflow reaction so as to obtain an acetic acid liquid, further adding distilled water, distilling acetic acid so as to obtain a mixed solution, performing aeration reaction so as to obtain metal precipitate, washing with acetone, and sintering with a protection gas, thereby obtaining the ternary cathode material. By adopting a mode that the particle size of the metal oxide is reduced, the performance efficiency of the ternary cathode material prepared by using the method is effectively improved, and meanwhile the ternary cathode material is good in circulation property, high in capacity and good in activity.

The invention discloses a method for preparing vapor-phase coated modified lithium nickelate, cobaltate and manganate positive electrode materials. The method includes steps of S1, heating anhydrous acetic acid liquid until the anhydrous acetic acid liquid is boiling at the temperature of 120 DEG C, delivering acetic acid steam to gas inlets of pulse type gas flow mixing machines via pipelines andkeeping gas inlet pressures higher than or equal to 0.8 Mpa; S2, feeding conventional lithium nickelate, cobaltate and manganate positive electrode materials into bins of pneumatic mixing machines and allowing the conventional lithium nickelate, cobaltate and manganate positive electrode materials to move at the high speeds under the effects of acetic acid vapor so as to obtain coated lithium nickelate, cobaltate and manganate materials; S3, heating the coated lithium nickelate, cobaltate and manganate materials obtained at the step S2 until the temperatures of the lithium nickelate, cobaltate and manganate materials reach 650-800 DEG C and preserving heat for 8-12 h; S4, naturally cooling sintered products obtained at the step S3 until the temperatures of the sintered products reach theroom temperature and smashing and sieving the sintered products to obtain the vapor-phase coated modified lithium nickelate, cobaltate and manganate positive electrode materials which are target products. The method has the advantages that the PH (potential of hydrogen) values of lithium nickelate, cobaltate and manganate surfaces can be lowered to a great extent by the aid of material surface alkaline and acidic vapor neutralization principles, accordingly, the cycle performance and the processing properties of the lithium nickelate, cobaltate and manganate materials can be improved, and theinput cost of high-nickel ternary materials used by battery enterprises can be reduced to a great extent.

It is a high effective liquid chromatogram analysis method of a mixture composed of three-nitryl phthalandione, four-nitryl phthalandione and phthalandione. Its conditions are the following: chromatogram of Kromasil C#-[18]ú¼5ª–mú¼150í‡4.6mm(I.D.); flow phase of carbinol to acetic acid liquid (0.1mol/Lú¼pH2.89) with volume proportion as 10í† 90; flow speed of 1.0mL/min; column temperature as thirty degrees; sample-in volume: 10ª–L; test wavelength: 254nm; accuracy: 0.2aufs.

The invention relates to a flavor-quality modifier for food, a manufacturing method thereof and the food processed by same, and the task is to provide the food flavor-quality modifier which is capable of safely storing the flavor quality of the food as long as possible. The flavor-quality modifier for food is a powder or a paste obtained by using an inorganic phosphate powder to adsorb an acetic acid liquid containing dissolved glycerin fatty acid ester or cane sugar fatty acid ester, or is a substance containing the powder or the paste, and thus the above task is solved.

The invention provides a magnetic chitosan microsphere treatment agent, which is prepared by dissolving and uniformly mixing mixed powder of tourmaline and magnetic chitosan microspheres in sodium alginate and polyvinyl alcohol, and solidifying and balling. The magnetic chitosan microsphere is prepared by using superparamagnetic ferroferric oxide, 1 to 10 weight percent of chitosan acetic acid liquid, liquid paraffin, Span-80 and glutaraldehyde as reaction materials through an emulsion crosslinking method, wherein the mass ratio of the superparamagnetic ferroferric oxide to the chitosan acetic acid liquid is 1:(1-10), the volume ratio of the liquid paraffin to the Span-80 is (10-100):1, the volume ratio of the chitosan acetic acid liquid of superparamagnetic ferroferric oxide to mixed liquid of paraffin-Span-80 is 1:(1-10), and the volume ratio of the mixed liquid of superparaferroferric oxide, paraffin and Span-80 to glutaraldehyde is (5-50):1. According to the water treatment agent, the removal rate of volatile phenol in water is between 80 and 90 percent, and the removal rate of chromium in water is 93 percent; and the magnetic chitosan microsphere treatment agent has the advantages of large adsorption capacity, high purification efficiency, low cost, regeneration, no toxicity, no pollution to environment and the like.