67 results about "Acetone oxime" patented technology

The invention provides a smoke desulphurization agent. The desulphurization agent is aqueous solution containing a main absorption component, an activating agent, an anti-oxidation component and acid, wherein the main absorption component is one or more of alkyl piperazine, hydroxyalkyl piperazine and hydroxyalkyl piperazine ketone; the activating agent comprises piperazine and diazabicyclo; and the anti-oxidation component is at least one of 4-tert-butyl catechol, 2,6-di-tert-butyl-p-phenylcresol, acetone oxime and N,N-bi (2-ethoxy) glycine. The smoke desulphurization agent provided by the invention can remove and reclaim sulfur dioxide in the smoke, and has higher desulphurization rate; moreover, even if the smoke desulphurization agent is strongly oxidized and then is recycled, the absorption capacity for the sulfur dioxide is still stable; and in addition, the rich liquor formed by desulphurization after adopting the desulphurization agent has better desorption performance such as high desorption rate.

The invention is a breathable ultraviolet-resistant anti-static polyurethane resin coating adhesive and a preparation method thereof. The breathable ultraviolet-resistant anti-static polyurethane resin coating adhesive is prepared by compounding water-based breathable anti-static polyurethane resin, a blocked polyurethane crosslinking agent, nano zinc oxide and a thickening agent, wherein the water-based breathable anti-static polyurethane resin is prepared from components A, the blocked polyurethane crosslinking agent is prepared from components B, the components A comprise 50-200 parts of polyoxyethylene ether glycol, 50-200 parts of polyoxypropylene ether glycol, 1-5 parts of trimethylolpropane, 40-200 parts of polyisocyanate, 3-10 parts of a chain extender, 0.02-0.06 part of a catalyst, 30-60 parts of a solvent, 3-10 parts of sodium hydrogen carbonate, 3-10 parts of sodium hydrogen sulfite and 500-1,500 parts of deionized water, and the components B comprise 100-200 parts of 1.6-hexylidene diisocyanate trimer, 42-92 parts of acetone oxime or methyl ethyl methyl ethyl ketoxime, 0.02-0.06 part of a catalyst, 400-900 parts of a solvent and 30-80 parts of an ultraviolet-resistant additive. The breathable ultraviolet-resistant anti-static polyurethane resin coating adhesive has excellent air permeability, ultraviolet resistance and static resistance and has good dry and wet rubbing fastness.

The invention provides a new preparation method of cyclohexanone oxime, and the preparation method comprises performing a hydrolysis reaction of 4 or less than 4 carbon atom containing oxime such as acetaldoxime, acetone oxime or butanone oxime and the like which is produced by an ammoxidation method and phosphoric acid added in a phosphate buffer solution to obtain an inorganic liquid containing hydroxylamine phosphate, then performing an oximation reaction of the inorganic liquid and cyclohexanone to obtain the high purity cyclohexanone oxime. According to the preparation method, due to the direct oximation reaction of the hydroxylamine phosphate and the cyclohexanone, the shortcoming that the cyclohexanone oxime prepared by the direct ammoxidation method is high in impurity content and is difficult to separate, and thus affecting the quality of caprolactam prepared from the cyclohexanone oxime can be overcomed; at the same time, the advantages of a plurality of processes for industrial production of the cyclohexanone oxime are combined, the inorganic liquid cycle can be realized, the high purity cyclohexanone oxime is prepared, the process cycle is realized, and the preparation method is conducive to energy saving and consumption reduction, and the realization of safe, environmentally friendly, low-cost and high-quality production.

The invention relates to a tough organic silicon sealant, which belongs to the technical field of organic silicon sealants. Modified silicone sealants include dihydroxy polydimethylsiloxane, dimethicone, dimethyldibutanone oximosilane, methyltriacetone oximosilane, polyethylene glycol, fumed silica, nano- grade calcium carbonate, methyl triacetoxy silane, di-tert-butoxy diacetoxy silane, dioctyl tin dilaurate, polyethylene terephthalate. The silicone sealant of the present invention has certain shape stability and deformation resistance toughness after curing.

The invention discloses a high-temperature O2 / CO2 corrosion inhibitor for coiled tubing. The high-temperature O2 / CO2 corrosion inhibitor for the coiled tubing is used by matching an agent A mainly used for deoxidizing and an agent B mainly used for resisting corrosion of carbon dioxide, wherein the agent A is acetone oxime, D-ascorbic acid, sodium sulfite or ferrous sulphate; and the agent B is formed by mixing the components in percentage by weight: 20-30 percent of quaternary pyridine salt, 10-15 percent of mannich base chelate, 3-7 percent of surfactant and 48-67 percent of solvent. The quaternary pyridine salt is obtained by reacting pyridine with benzyl chloride; and the mannich base chelate is obtained by aldehyde ketone amine condensate generated by morpholine, trioxymethylene and dimethylamine through a mannich reaction with metal chloride. The corrosion inhibitor provided by the invention has use temperature up to 170DEG C, is suitable for a water-corrosive medium in which oxygen and carbon dioxde coexist and can be used for effectively inhibiting the corrosion of media such as the oxygen and the carbon dioxide and ensuring safe operation of the coiled tubing in the production process.

The invention discloses an octadecylamine corrosion inhibition formula for furnace shutdown protection of a thermal power plant. The formula mainly comprises octadecane amine, acetone oxime and ascorbic acid; the concentration ranges thereof are respectively controlled to be 20-250mu g / L, 60-150mu g / L and 15-100mu g / L; and the glacial acetic acid is taken as cosolvent of octadecylamine and the ammonia is taken as the pH value regulator. The preparation method of the formula comprises the following steps of: firstly adding the octadecane amine; diluting with the ionized water; adding the acetone oxime and the ascorbic acid; completely dissolving the corrosion inhibitor by means of heating, stirring and adding the glacial acetic acid; adding corrosion inhibitor solution into water vapour systems when the furnace is shutdown and lifted down in a sliding way, so that the solution is evenly distributed and fully filled into all the water vapour systems of the furnace; and generating an octadecylamine protection film with a monomolecular layer through the afterheat of the furnace before a heat furnace of the furnace discharges water, wherein the generated protection film can play a part in good protection at the water side of the heating surface of the furnace for 5 months. The method not only is suitable for a high-parameter DC furnace, but also is suitable for a high-parameter steam pocket furnace, can effectively protect the shutdown furnace, can be convenient for workers to overhaul the furnace, solves the disadvantage that the conventional method is short in protection time and is not suitable for overhaul, and can not pollute the furnace after being turned on again. The invention has obvious economic benefit, environmental benefit and social benefit, can not generate harmful substance, and has no secondary pollution.

The invention discloses a dyeing fabric deepening finishing agent and a preparation method. The dyeing fabric deepening finishing agent is prepared in a mixed and matched manner from water-based close polyurethane resin and water-based acrylic resin, wherein the water-based close polyurethane resin is prepared by polypropylene oxide triol, N-methyl diethanol amine, hexamethylene diisocyanate, acetone, acetoxime, dimethyl sulfate, glacial acetic acid, sodium hydrogen sulfite, deionized water and dibutyltin dilaurate, and the water-based acrylic resin is prepared by methyl acrylate, acrylonitrile, dimethylaminoethyl methacrylate, trifluoroethyl methacrylate, hydroxyethyl acrylate, methacryloyloxyethyl trimethyl ammonium chloride, azobis isobutylamidine hydrochloride and deionized water. The dyeing fabric deepening finishing agent is resistant in cracking and slipping and good in fixation effect.

The invention provides a smoke desulphurization agent. The desulphurization agent is aqueous solution containing a main absorption component, an activating agent, an anti-oxidation component and acid, wherein the main absorption component is one or more of alkyl piperazine, hydroxyalkyl piperazine and hydroxyalkyl piperazine ketone; the activating agent comprises piperazine and diazabicyclo; and the anti-oxidation component is at least one of 4-tert-butyl catechol, 2,6-di-tert-butyl-p-phenylcresol, acetone oxime and N,N-bi (2-ethoxy) glycine. The smoke desulphurization agent provided by the invention can remove and reclaim sulfur dioxide in the smoke, and has higher desulphurization rate; moreover, even if the smoke desulphurization agent is strongly oxidized and then is recycled, the absorption capacity for the sulfur dioxide is still stable; and in addition, the rich liquor formed by desulphurization after adopting the desulphurization agent has better desorption performance such ashigh desorption rate.

The invention discloses a black shale soluble salt extracting method which comprises the following steps: (1) preparing black shale into a centimeter-level block sample in any shape; (2) utilizing a vacuum drying box to dry the sample and weighing; (3) adding distilled water and an organic reducing agent acetone oxime into a container to make a water solution be in strong reducing environment (anEh value is lower than -200mV); (4) completely immersing the shale block sample into the water solution in the step (3) and utilizing an oxidizing and reducing potentiometer and a conductivity meter to respectively monitor the Eh value and conductivity of the water solution in real time; (5) controlling the adding amount of the acetone oxime in an extracting experiment process to make the water solution keep the strong reducing environment (the Eh value is smaller than -200mV); (6) obtaining an extracting solution containing the black shale soluble salt when a conductivity value of the water solution does not increase any more. By means of the black shale soluble salt extracting method disclosed by the invention, mineral oxidization and dissolution in a soluble salt extracting process areeffectively avoided, and the soluble salt is prevented from being lost in a sample preparing process; thus, accurate black shale soluble salt ion composition data can be obtained.

The invention discloses a boiler deoxidizer and application thereof. The boiler deoxidizer comprises acetone oxime, carbazide, diacetylmonoxime and deionized water and respectively comprises the following raw materials in percentage by mass: 8-15% of acetone oxime, 10-25% of carbazide, 15-25% of diacetylmonoxime and the balance of deionized water. The boiler deoxidizer disclosed by the invention is capable of rapidly reacting with dissolved oxygen in water, has the characteristics of being small in usage amount, high in deoxidizing efficiency, non-toxic, free in environmental pollution and thelike, does not influence salt content in boiler water after decomposition, is an optimum medicine for shutdown protection and passivating treatment of a subcritical boiler, and is also an ideal product for replacing the traditional chemical deoxidizer in medium and high-pressure boiler water supply. The boiler deoxidizer disclosed by the invention can be applied to boiler water supply deoxidizingin refinery enterprises.

The invention discloses an anti-corrosion corrosion inhibitor for a heat supply network and a preparation method and application method of the anti-corrosion corrosion inhibitor. The anti-corrosion corrosion inhibitor is characterized by comprising, by weight, 15-25 parts of sodium sulfite or carbohydrazide or dimethyl ketoxime or acetone oxime, 4-12 parts of trisodium phosphate or sodium tripolyphosphate in phosphate, 8-15 parts of ammonium hydroxide or monoethanolamine or sodium hydroxide or potassium hydroxide as a pH conditioning agent, 15-25 parts of 1H-benzotriazole or mercaptobenzothiazole or dicyclohexylaminenitrite as a passivator and 33-48 parts of cyclohexylamine carbonate or hexamethylenetetramine or tetrahydroglyoxaline as a corrosion inhibitor body. The application method of the anti-corrosion corrosion inhibitor comprises the step that anti-corrosion corrosion inhibitor powder is directly added into water of the heat supply network, wherein the using amount is 80-120 mg / L. By means of the corrosion inhibitor, stainless steel pitting corrosion and galvanic corrosion occurring in the heat supply network can be effectively prevented; effective protection is formed between a gaseous phase space and a liquid phase space at the same time; and environmental friendliness is achieved.

The invention relates to the field of chemical engineering, in particular to a preparation method of acetoxime methyl ether, which comprises the following steps: performing etherification reaction on acetoxime, methane chloride and sodium hydroxide under the action of a phase transfer catalyst to generate acetoxime methyl ether, and rectifying to obtain the finished product of acetoxime methyl ether. The reaction conditions are mild, the operation is simple, the synthesis is easy, the byproduct acetone can be recycled, and the cost and the energy consumption can be reduced; under the action of the heteropolyacid salt phase transfer catalyst, the etherification reaction can solve the problem of compatibility during the organic-inorganic two-phase reaction and improve the reaction efficiency and yield, and meanwhile, the catalyst also has an etherification catalysis effect and is beneficial to forward movement of the reaction and increase of the yield of the product; compared with the prior art, the reaction yield is higher, the material utilization rate is large, and the preparation method of the acetoxime methyl ether has an industrial prospect.