96 results about "Potassium acetate" patented technology

The invention relates to the technical field of biological detection, and discloses a mycoplasma pneumoniae nucleic acid rapid detection method, which comprises the following steps: mixing a sample to be detected with a multifunctional pretreatment buffer solution containing tris (hydroxymethyl) aminomethane, potassium acetate, polyethylene glycol, saponin, spermine tetrahydrochloride and tris (2-carboxyethyl) phosphine hydrochloride, and carrying out cracking treatment; a cracking mixed solution is obtained; redissolving the enzymatic isothermal amplification basic reagent, the specific primer and the probe to obtain a redissolving amplification system; sucking the supernatant of the cracking mixed solution, adding the supernatant into a redissolving amplification system, and adding a magnesium acetate solution to obtain a reaction mixed solution to be detected; and carrying out isothermal amplification and signal acquisition to obtain a detection conclusion. The multifunctional pretreatment buffer solution is used for cracking the to-be-detected sample, sample liquefaction, cracking and nucleic acid release are completed in a single system, the nucleic acid extraction and purification step of centrifugal column adsorption or magnetic bead elution is avoided, and the operation process is simplified.

The invention discloses an environment-friendly anti-icing and deicing coating as well as a preparation method and application thereof, and aims to solve the problems of low efficiency, high corrosivity, serious environmental pollution and the like in the traditional anti-icing and deicing technology. The coating material is prepared from the following components: deionized water, polyvinylpyrrolidone, propylene glycol, glycerol, fumed silica, granular silica, ethanol, potassium acetate and a waterborne polyurethane coating. The invention further provides a preparation method of the coating material, and the coating material is applied to anti-icing of metal and plastic substrates and has dual functions of preventing icing and rapidly removing ice. The coating has the advantages of being good in durability, environmentally friendly, free of corrosion to base materials and the like, is particularly suitable for anti-icing protection of equipment such as rails, wind power blades and cables, remarkably improves the operation and maintenance efficiency of key facilities and equipment, reduces the maintenance cost and has important economic and social benefits.

This invention relates to the field of wastewater treatment and discloses a method for treating saline wastewater. The method includes: 1) evaporating the wastewater to be treated to obtain a concentrated liquid; 2) separating the concentrated liquid into solid and liquid phases, and cooling the liquid phase obtained from the solid-liquid separation to crystallize it, obtaining a crystalline liquid; 3) separating the crystalline liquid into solid and liquid phases and evaporating the liquid phase obtained from the solid-liquid separation to obtain a concentrated liquid; 4) cooling the concentrated liquid to crystallize it, obtaining a crystalline liquid; 5) separating the crystalline liquid into solid and liquid phases, wherein, relative to the CH3COO content in 1 mol of the wastewater to be treated... ‑ The wastewater to be treated contains Cl ‑ The concentration is 0.4-5 mol. The method according to this invention is environmentally friendly and can separately recover potassium chloride and potassium acetate from wastewater, maximizing the reuse of resources in the wastewater.

This invention discloses a process for preparing ultrafine glass powder using a spray pyrolysis method in the field of glass encapsulation materials. The process first prepares a homogeneous solution A using boric acid, aluminum nitrate nonahydrate, alkaline earth metal nitrates, lithium acetate, sodium acetate, and potassium acetate. Tetraethyl orthosilicate is dissolved in anhydrous ethanol to obtain solution B. A rare earth transition metal composite oxide nanoclusters encapsulated with a silica shell hybrid inorganic modifier is dispersed in anhydrous ethanol to obtain suspension C. Solution B and suspension C are mixed, and deionized water and hydrochloric acid are added to adjust the pH. After pre-hydrolysis and cooling, triethyl borate is added dropwise for co-condensation, and then mixed with solution A. After adjusting the pH and aging, the mixture is ultrasonically atomized and spray pyrolyzed to obtain ultrafine glass powder. The glass powder obtained by this invention has small particle size, high sphericity, and can be continuously produced.

The invention provides a bio-based composite environment-friendly snow melting agent. The bio-based composite environment-friendly snow melting agent comprises the following components in parts by weight: 20-50 parts of a bio-based component, 15-30 parts of a chlorine salt component, 5-10 parts of calcium oxide, 10-20 parts of urea, 20-40 parts of potassium acetate, 2-8 parts of a composite corrosion inhibitor and 2-8 parts of an anti-skid adsorption component. According to the bio-based composite environment-friendly snow-melting agent disclosed by the invention, a renewable bio-based material is used for partially replacing a traditional snow-melting component and is compounded with conventional chlorine salt and non-chlorine salt snow-melting components, and a composite corrosion inhibitor and an anti-skid adsorption component are added, so that the aims of efficiently melting snow, being low in corrosivity and being harmless to the environment can be fulfilled.

Compositions comprising Certified Organic potassium salts derived from plant ash are described herein. The compositions described herein include potassium acetate derived from acetic acid and sunflower ash. Such compositions can be used as a fertilizer component in organic farming and result in higher plant yields compared to plants treated with inorganic forms of potassium alone.

The invention belongs to the technical field of biology, and particularly discloses a chicken semen cryopreservation solution and a preparation method thereof. The chicken semen cryopreservation liquid comprises a cryoprotection liquid I and a cryoprotection liquid II. The freezing protection liquid I is prepared from the following components: glucose, sodium glutamate, potassium acetate, dipotassium phosphate, magnesium acetate, N, N-bis (2-ethoxyl)-2-aminoethanesulfonic acid and an antibiotic solution. And the freezing protection liquid II comprises dimethylformamide and nano zinc oxide. The invention discloses a chicken semen cryopreservation solution and a preparation method thereof, by applying the chicken semen cryopreservation solution, the fertilization and incubation performance of frozen semen is remarkably improved, centrifugation-free and direct semen deposition of the frozen semen are realized, and physical damage and activity reduction caused by the centrifugation process to sperms are avoided.

The invention belongs to the technical field of snow melting and deicing, and discloses an environment-friendly cleaning snow-melting agent for a road surface and a preparation method thereof. The snow-melting agent is composed of 40-80 parts of a chlorine salt solution, 10-20 parts of potassium acetate, 1-10 parts of sodium gluconate, 1-10 parts of urea, 80-100 parts of glycerin and 1-10 parts of a corrosion inhibitor. Wherein the chlorine salt solution comprises 20-40 parts of calcium chloride, 10-20 parts of magnesium chloride and 100 parts of water, and the corrosion inhibitor comprises 1-10 parts of zinc dihydrogen phosphate, 1-10 parts of sodium tungstate, 1-5 parts of thiourea and 1-10 parts of sodium dodecyl benzene sulfonate. The preparation method comprises the steps of raw material pretreatment, mixing and dissolving, corrosion inhibitor adding and the like. The snow melting agent disclosed by the invention has the advantages of good snow melting effect, low corrosivity, small environmental influence, long acting time and low cost, and can reduce the spraying frequency and protect the surrounding environment.

The invention discloses an N-acylamino acid surfactant and a preparation method thereof, and belongs to the technical field of surfactants, the N-acylamino acid surfactant is prepared by the following steps: adding potassium anilinoacetate, fatty aldehyde and deionized water into a supercritical reactor according to a certain molar ratio, then adding a certain amount of triethylamine phase transfer catalyst, reacting for a period of time under the condition of supercritical nitrogen, and separating out the N-acylamino acid. And filtering the product in the reactor, standing and layering the obtained filtrate, and taking the subnatant to obtain the amino acid surfactant. The fatty aldehyde and the potassium anilinoacetate are subjected to dehydrogenation reaction under the action of the triethylamine phase transfer catalyst to prepare the amino acid surfactant, the reaction is carried out under the condition of supercritical nitrogen, and the supercritical nitrogen not only provides a high-pressure condition for the dehydrogenation reaction, but also has high solubility and high diffusivity, so that the amino acid surfactant is prepared. The raw materials can be fully dissolved, mixed and reacted, and the yield of the amino acid surfactant is high.

This application discloses a method for using a synergistic enhancer in SNCR system denitrification, relating to the field of flue gas denitrification technology. The method includes the following steps: S1, preparation of the synergist composition: including potassium acetate, sodium carbonate, and water, the above raw materials are placed in a synergist preparation tank and stirred to prepare a synergist solution; S2, ammonia water delivery: the ammonia water solution is delivered through an ammonia water delivery pipeline; S3, delivery and mixing of the synergist solution for denitrification: the synergist solution is delivered to the ammonia water delivery pipeline through a synergist delivery device, so that the synergist solution and the ammonia water solution are mixed to obtain a mixed solution, which is then sprayed into the incinerator furnace for denitrification reaction. This application uses potassium acetate and sodium carbonate in a specific ratio to form a denitrification enhancer, which has a simpler structure, is easier to prepare, and requires a lower synergist dosage, effectively reducing the raw material and preparation costs of denitrification operations in incinerators, and significantly improving denitrification efficiency and reducing NOx emissions.

The invention relates to the technical field of snow-melting agents, and particularly discloses an environment-friendly snow-melting and deicing composition and a preparation method thereof. The environment-friendly snow-melting and deicing composition comprises organic acid salt sustained-release microspheres, the organic acid salt sustained-release microsphere comprises a core material and a shell layer wrapping the core material, and according to the total weight of the organic acid salt sustained-release microsphere, the core material comprises the following raw materials in parts by weight: 30-45 parts of calcium magnesium acetate, 10-20 parts of sodium formate, 15-25 parts of potassium acetate, 8-15 parts of urea, 1-3 parts of a surfactant and 2-5 parts of a corrosion inhibitor; the shell layer is prepared from the following raw materials in parts by weight: 5 to 8 parts of sodium alginate, 3 to 6 parts of chitosan, 2 to 4 parts of calcium chloride, 1 to 3 parts of carboxymethyl cellulose and 1 to 2 parts of nano silicon dioxide. The snow melting and deicing speed of the environment-friendly snow melting and deicing composition in a severe cold environment can be increased.

This invention relates to the field of fine chemical catalysis technology, specifically to an improved ion-gel confined palladium-on-carbon catalyst, its preparation method, and its applications. The catalyst uses N,N-dimethylacetamide (DMAc) as a solvent and potassium acetate as a base, with the addition of a catalytic amount of antioxidant 168 [(tris(2,4-di-tert-butylphenyl) phosphite)], and the reaction is carried out under milder CO pressure (1.0-1.6 MPa) and temperature (90-110 °C). This improved catalyst, in synergy with the optimized process, unexpectedly enables the high conversion and selectivity of 4-bromobenzyl sulfone derivatives to 4-methylsulfonylbenzoic acid derivatives, while maintaining the catalyst's excellent recyclability and stability. This invention provides a highly efficient, green, and easily industrialized synthetic route for the target product.

The invention discloses an anti-aging highlight veneer shaving board and a preparation method thereof, and belongs to the technical field of wood board production. The manufacturing method comprises the steps of eucalyptus wood shaving preparation, primary drying, potassium acetate treatment, secondary drying, acetic anhydride treatment, tertiary drying, gluing, assembly, pre-pressing and hot pressing, and the acetylated eucalyptus wood shaving board is manufactured. And then sanding, melamine paper pasting, hot pressing, colored paint roller painting, varnish and UV paint curing are conducted, and the anti-aging highlight veneer shaving board is obtained. The product has lasting highlight on the surface, solves the problem of reflection imaging sawtooth waves of a common shaving board, and is suitable for high-end furniture and indoor decoration.

The contact lens treatment solution comprises: (a) one or more potassium salts selected from the group consisting of potassium chloride, potassium citrate, potassium hydroxide, potassium borate, potassium ethylenediaminetetraacetate, and potassium phosphate; (b) an antimicrobial agent comprising alexidine or a salt or free base thereof; and (c) optionally, one or more sodium salts selected from the group consisting of sodium chloride, sodium citrate, sodium hydroxide, sodium phosphate, sodium ethylenediaminetetraacetate, and sodium borate, wherein, when one or more sodium salts are present, the one or more potassium salts are present in an amount greater than the amount of the one or more sodium salts.

The present invention is applicable to the technical field of chemical drug synthesis, and provides a preparation method of halcinonide intermediate, comprising the following steps: adding acetic acid to anecortave acetate in an organic solvent, reacting under the common catalysis of p-toluenesulfonic acid and trifluoroacetic anhydride, adjusting the pH value with ammonia, separating, washing, concentrating under reduced pressure, beating, filtering, and drying to obtain D-1; adding D-1 to dimethyl sulfoxide, reacting under the catalysis of potassium acetate, cooling, precipitating a solid, filtering, and drying to obtain D-2; adding an aqueous solution of sodium hydroxide or lithium hydroxide to D-2 in a reaction solvent, and hydrolyzing the reaction to obtain D-3; reacting D-3 with an acyl chloride in an aprotic solvent under alkaline conditions to obtain D-4; adding D-4 to DMF, and reacting with lithium chloride under nitrogen protection to obtain D-5. The raw material anecortave acetate used in the present invention is easily available and cheap, and the method for preparing D-5 is efficient, green, safe, and has a high yield.

The invention provides a slow-burning paper formula and a processing method thereof, and belongs to the technical field of aromatherapy, the slow-burning paper formula comprises the following raw materials by weight: 70-80% of distilled water, 5-6% of potassium carbonate, 0.5-1% of potassium hydroxide, 13-23% of ethanol, and pure wood pulp paper as a base material; the purity of the potassium carbonate is more than or equal to 99%, the particle size is less than or equal to 100 meshes, the potassium carbonate is a flaky solid, the solubility of the potassium carbonate at 20 DEG C is more than or equal to 110 g per 100 g of water, the ethanol is absolute ethyl alcohol with the volume concentration of 95-99.7%, and the impurity content of the ethanol is less than or equal to 0.3%; a traditional potassium nitrate or saltpeter combustion improver is replaced with a composite formula of potassium carbonate, potassium hydroxide and ethyl alcohol, poisonous gas such as nitric oxide cannot be generated during combustion of the slow-combustion paper, generation of incomplete combustion products such as carbon monoxide, aldehydes and tar can be inhibited in the combustion process of potassium acetate, and the pollution problem caused by decomposition of the combustion improver is avoided; the environment-friendly and health requirements are met.

The invention discloses a preparation method of an electrolyte of a high-voltage, high-current-density and high-stability aqueous alkaline zinc-iron flow battery in the field of flow batteries. The electrolyte is prepared by blending potassium diethyltriamine pentaacetate, zinc ions and potassium salt. According to the invention, the charge / discharge voltage of the zinc-iron flow battery in the cycle process and the cycle stability of the zinc-based flow battery under high current density are greatly improved, and the phenomena of hydrogen evolution and zinc dendrite of the zinc negative electrode in the existing alkaline aqueous zinc-iron flow battery are inhibited.

The invention relates to the technical field of flame-retardant materials, in particular to flame-retardant polyurethane soft foam based on phenylphosphonic acid intercalated kaolin as well as a preparation method and application of the flame-retardant polyurethane soft foam. Preparing potassium acetate intercalated kaolin; preparing phenylphosphonic acid intercalated kaolin; the preparation method comprises the following steps: adding phenylphosphonic acid intercalated kaolin into a chitosan aqueous solution, immersing polyurethane foam, continuously and slowly stirring, taking out and drying after immersing, then immersing in a glutaraldehyde ethanol solution, stirring, taking out and drying to obtain the flame-retardant polyurethane soft foam. By adopting the steps, the prepared chitosan-coated phenylphosphonic acid intercalated kaolin coating has low heat release rate and smoke release rate, and also has excellent flame retardant property; the chitosan-coated phenylphosphonic acid intercalated kaolin coating and the flame-retardant polyurethane soft foam can significantly reduce the combustible gas release and smoke generation rate under a thermal exposure condition.

The present application relates to the technical field of epoxy resin coatings, and specifically discloses a low-corrosive snow-melting and ice-melting coating and a preparation method. The low-corrosive snow-melting and ice-melting coating comprises a component A, a component B and a component C in a mass ratio of 100: (40-50): (90-100), wherein the component A comprises the following raw materials: 100 parts of epoxy resin, 15-25 parts of polyurethane elastomer, 2-5 parts of epoxy reactive diluent, 0.5-1 part of defoamer, 2-5 parts of silane coupling agent, and 30-50 parts of microcapsule snow-melting agent; the component B comprises the following raw materials: 40-60 parts of polyamide curing agent, 5-10 parts of phytic acid, and the component C comprises reinforcing filler; the microcapsule snow-melting agent comprises a core material and a polyurethane wall material for wrapping the core material, and the core material comprises potassium acetate and sodium molybdate in a mass ratio of 100: (2-4). The present application can improve the sustained-release effect of the snow-melting agent in the snow-melting and ice-melting coating, and the coating has excellent low-corrosiveness and crack resistance.

The invention provides an environment-friendly self-heating long-acting snow melting agent. The environment-friendly self-heating long-acting snow melting agent comprises the following components in parts by weight: 5-10 parts of calcium oxide, 15-30 parts of calcium chloride, 15-20 parts of magnesium chloride, 20-40 parts of potassium acetate, 10-15 parts of calcium magnesium acetate, 5-20 parts of sodium formate and 1-10 parts of a corrosion inhibitor. The environment-friendly self-heating long-acting snow melting agent disclosed by the invention has the advantages of rapid self-heating starting, lasting snow melting effect and environmental friendliness.

The invention discloses a wide-voltage-window electrolyte for an aqueous zinc-based battery and a preparation method and application of the wide-voltage-window electrolyte for the aqueous zinc-based battery, and the wide-voltage-window electrolyte for the aqueous zinc-based battery comprises a solute, a solvent, a first functional additive and a second functional additive, the solute is at least one of zinc sulfate, zinc acetate, zinc trifluoromethanesulfonate and bis (trifluoromethylsulfonyl) imide zinc, the solvent is a mixture of water and acetonitrile, the first functional aid is at least one of potassium acetate and ammonium acetate, and the second functional aid is fluoroethylene carbonate. According to the invention, the volume ratio of water to acetonitrile in the solvent is precisely regulated and controlled, and the first functional aid and the second functional aid are added, so that a wide voltage window of 0.1-3.1 V is obtained, the zinc ion conductivity at 25 DEG C is ensured to be greater than 5.0 mS / cm, and the technical problem that the voltage window and the ion conductivity are difficult to consider at the same time in the prior art is solved; and thus, the charging and discharging stability of the zinc-iodine battery is improved.

According to a first aspect, the invention relates to a mineral wool suitable for being blown, the mineral wool comprising mineral fibers and potassium acetate. The invention also relates, according to a second aspect, to a method for preparing a mineral wool according to the invention, comprising a step of spraying potassium acetate onto the mineral wool. According to a third aspect, the invention relates to a thermal and / or acoustic insulation coating obtained by blowing a mineral wool according to the invention above. The invention also relates to a method for applying an insulation coating above, comprising a step of blowing a mineral wool according to the invention. Finally, according to another aspect, the invention relates to the use of potassium acetate as an antistatic agent in a mineral wool suitable for being blown.

The invention discloses long flame coal-based granular carbon as well as a preparation method and application thereof, which comprises the following steps: crushing and screening long flame coal, dipping into a sodium carbonate and potassium acetate solution, drying, and pyrolyzing to obtain coal gas, tar and semicoke. And further grinding the semicoke to 200 meshes, adding ramie powder, mesophase pitch, sodium carboxymethyl cellulose and water, uniformly stirring, extruding into strips, airing, cutting into columnar carbon, and activating with water vapor to obtain the granular carbon. When the columnar carbon is prepared, the used main component is semicoke obtained by dipping and pyrolyzing the long flame coal, and deep processing and utilization of the semicoke can be realized; the CMC plays a role of a binding agent and replaces traditional coal tar which is seriously polluted; the ramie powder is added to improve the pore structure of the granular carbon and increase the iodine value of the granular carbon. The method is simple and feasible, graded utilization of the long flame coal is achieved, green preparation of the granular carbon is also achieved, the iodine value of the obtained granular carbon is large, and the method has wide application prospects in the fields of waste gas purification and the like.

A firefighting composition includes a sugar component and a salt component. the salt component including potassium formate. potassium formate hydrate. potassium acetate, magnesium sulfate, ammonium sulfate, sodium chloride, sodium sulfate, ammonium chloride. or a mixture of any two or more thereof.

The invention relates to the field of composite acetate, and discloses a slow-release composite acetate low-freezing-point filler and a preparation method thereof.The preparation method comprises the steps that any two or more of sodium acetate, calcium acetate, potassium acetate or magnesium acetate are selected according to a preset proportion and evenly mixed, and an acetate mixed material is obtained; any two or more than two carriers of lignin fiber, diatomite, bentonite, zeolite and attapulgite are selected according to target slow release performance requirements; deionized water is taken and placed in an oil bath stirring pot, the heating temperature is controlled to 60 DEG C, and the acetate mixture is added; slowly adding the composite carrier within 10 minutes after the acetate is completely dissolved; transferring the adsorbed slurry to a constant-temperature drying box, and drying at 120 DEG C for 68 hours; mechanically crushing the dried solid material, controlling the particle size at 0.06 mm, and performing ultrasonic screening to obtain an intermediate product with uniform particle size; the invention has the advantage of excellent slow release performance.

The invention discloses a preparation method of deflazacort, which is characterized in that 3-(hydrazinoformyl) hydrazone-16beta, 17beta-epoxy imino-1, 4-pregnadiene-11, 20-diketone is used as a raw material, high-selectivity synthesis of 11beta-hydroxyl is realized at-10 + / -2 DEG C through photocatalysis and steric hindrance-directed reduction of diisopinopinyl borane, and ee (enantiomeric excess) value is greater than or equal to 95%. The preparation method comprises the following steps: after iodinating with N-iodosuccinimide, quenching with sodium thiosulfate, carrying out ring-opening esterification with potassium acetate, and recrystallizing to obtain the product, the total yield is 57%, the impurity content is low, and the preparation method is suitable for industrialization.

The invention relates to the technical field of catalysts, in particular to a palladium-nickel catalyst for synthesizing vinyl acetate and a preparation method thereof.According to the catalyst, a composite carrier of nanometer aluminum oxide and a ZSM-5 molecular sieve serves as a carrier, Pd and Ni serve as bimetallic main active components, and potassium acetate and La2O3 serve as auxiliary active components. The preparation method comprises the key steps of carrier pretreatment, step-by-step impregnation loading of active components, roasting activation in an acetic acid-containing partial pressure atmosphere and the like. A Pd-Ni system is adopted to replace a traditional expensive Pd-Au system, the cost of precious metal is remarkably reduced by 40%-50%, meanwhile, the catalytic activity, selectivity and stability of the catalyst are comprehensively improved through the synergistic effect of all the components, and the catalyst is particularly suitable for industrial production of synthesizing vinyl acetate through an ethylene gas phase method.

Disclosed are methods of making an alkenyl carboxylate ester i.e., alkene acetoxylation, comprising combining an alkene, a carboxylic acid, and a bimetallic single-atom alloy catalyst comprising platinum atoms and copper atoms, at a pressure and a temperature, the catalyst further comprising an oxide support such as silicon dioxide. Catalytic activity is further enhanced by adding alkali promoters e.g., potassium acetate.

The present invention relates to a liquid pharmaceutical composition comprising (i) totally dissolved tretinoin or a pharmaceutically acceptable isomer thereof; (ii) d-alpha-tocopheryl polyethylene glycol 1000 succinate (TPGS); (iii) a pH-modifying agent selected in the group consisting of meglumine, potassium hydroxide (KOH), sodium hydroxide (NaOH), sodium acetate (anhydrous, trihydrate, and mixtures thereof), potassium acetate (anhydrous, trihydrate, and mixtures thereof), di-potassium hydrogenophosphate, di-sodium hydrogenophosphate, tri-sodium phosphate, tri-potassium phosphate, and mixtures thereof; and (iv) water. The present invention also relates to the medical uses of such a composition.

Disclosed are methods of making an alkenyl carboxylate ester i.e., alkene acetoxylation, comprising combining an alkene, a carboxylic acid, and a bimetallic single-atom alloy catalyst comprising platinum atoms and copper atoms, at a pressure and a temperature, the catalyst further comprising an oxide support such as silicon dioxide. Catalytic activity is further enhanced by adding alkali promoters e.g., potassium acetate.