65 results about "Hydrogen peroxide product" patented technology

The invention belongs to the technical field of hydrogen peroxide, and especially relates to a hydrogen peroxide working solution and its application in the preparation of hydrogen peroxide. The hydrogen peroxide working solution comprises 2-ethylanthraquinone having a mass concentration of 120-200g / L and an organic solvent, and the organic solvent comprises, by volume, 70-80% of a C9-C10 aromatic hydrocarbon, 14-20% of trioctyl phosphate, 4-10% of 2-methylcyclohexyl acetate and 0.4-0.9% of tertiary amine When the hydrogen peroxide working solution is used in the preparation of hydrogen peroxide, the hydrogen peroxide working solution can greatly improve the hydrogenation efficiency and the oxidation efficiency of 2-ethylanthraquinone, and has the advantages of low production cost, no peculiar smell and product yield improvement.

The invention relates to a slurry bed loop reactor, application and a method for producing hydrogen peroxide. The slurry bed loop reactor comprises a riser, a separation tank and a downcomer which are communicated sequentially, wherein an expansion section with expanded pipe diameter is arranged at the upper part of the riser, the upper part of the expansion section is communicated with the separation tank, a liquid phase outlet in the upper part of the separation tank is communicated with the upper part of the downcomer, the bottom of the downcomer is communicated with the bottom of the riser, and the bottom of the separation tank is communicated with the lower part of the downcomer; and a raw material inlet is formed in the bottom of the riser, gas outlets are formed in the top of the expansion section of the riser and in the top of the separation tank, a filtration component is arranged in the downcomer and a clear liquid outlet is formed in the upper part of the downcomer via the filtration component. According to a hydrogenation method for producing hydrogen peroxide by an anthraquinone method with the adoption of the slurry bed loop reactor, the gas-liquid-solid three-phase separation efficiency is high, the excess local liquid holdup of a catalyst is avoided, the possibility of excessive hydrogenation is reduced, the hydrogenation efficiency is further effectively improved and a hydrogen peroxide product with relatively high concentration can be obtained.

The invention relates to a system and a method for concentrating and purifying hydrogen peroxide. A hydrogen peroxide concentration rectifying tower T101 is provided with a feed port; the tower top is connected with an inlet of a condenser E101; one part at the outlet of the condenser E101 is recovered and the other part at the outlet of the condenser E101 returns to a tower top reflux substance inlet of the hydrogen peroxide concentration rectifying tower T101; one part at the bottom of the hydrogen peroxide concentration rectifying tower T101 is recovered and the other part at the bottom of the hydrogen peroxide concentration rectifying tower T101 is connected with an inlet of a hydrogen peroxide concentration tower bottom reboiler E102; and an outlet of the hydrogen peroxide concentration tower bottom reboiler E102 is connected with a reflux substance inlet at the bottom of the hydrogen peroxide concentration rectifying tower T101. The method comprises the following steps: mixing 25 to 35 weight percent of hydrogen peroxide serving as a raw material with a stabilizing agent; feeding into the hydrogen peroxide concentration rectifying tower T101; and allowing the top gas phase to enter the condenser E101 to obtain the hydrogen peroxide product at the concentration of more than or equal to 50 weight percent. The system and the method adopts continuous operation and are suitable for large-scale industrial production; heating mediums are steam and soft water, so contact of organic materials and the hydrogen peroxide is avoided and the system and the method are safe and reliable; and the afterheat in a factory serves as the heat source of the rectifying tower, so low-grade energy is utilized, the public engineering investment is saved, and energy consumption is reduced.

The invention discloses a slurry-bed circulation flow reactor and an application and a method for producing hydrogen peroxide. The slurry-bed circulation flow reactor comprises an ascension pipe, an expanding section used for expanding pipe diameter of the upper part of the ascension pipe and a solid-liquid separator, wherein the expanding section is communicated with the upper part of the solid-liquid separator; the bottom of the solid-liquid separator is communicated with the bottom of the ascension pipe; a three-phase separator of a double sleeve structure is arranged in the expanding section; a raw material inlet is formed in the bottom of the ascension pipe; a gas outlet is formed in the top of the expanding section; a filtration component is arranged in the solid-liquid separator; and a clear liquid outlet is arranged at the upper part of the solid-liquid separator by virtue of the filtration component. According to a method for producing hydrogen peroxide by taking the slurry-bed circulation flow reactor as a hydrogenation reactor, the gas-liquid-solid three-phase separation efficiency is high; the local excessive hydrogenation of the catalyst is avoided; the excessive hydrogenation possibility is reduced; the hydrogenation efficiency is high; and hydrogen peroxide products with high concentration can be produced.

A skin disinfectant in ready-to-use concentrated liquid or dry powdered form. Ready-to-use liquid forms have a pH of from about 2 to about 6 and include:(a) hydrogen peroxide in a concentration of from about 0.01 to about 4% w / w of the solution;(b) at least one surfactant chosen from imidazoline derivatives, alkyl betaines, alkyl amidopropyl betaine amides, alkyl amidopropyl betaines, alkylsulfo betaines, amine oxides and derivatives thereof in a concentration of from about 0.01 to about 15% w / w of the solution;(c) at least one hydrogen peroxide stabilizer in a concentration of from about 0.01 to about 4% w / w of the solution;(d) at least one member chosen from cyclic carboxylic acids and salts thereof in a concentration of from about 0.01 to about 4% w / w of the solution; and(e) at least one skin conditioning agent in a concentration of from about 0.01 to about 10% w / w of the solution.

The present invention relates to a composition comprising a coupled enzyme system for the rapid and efficient production of hydrogen peroxide by the coupling of a first enzyme system capable of hydrogen peroxide generation, to a second enzyme system which utilizes the non hydrogen peroxide product of the first enzyme system, and optionally is capable of generating further hydrogen peroxide.

A process for preparing high-purity hydrogen peroxide from the aqueous solution of industrial hydrogen peroxide includes such steps as contacting with strong-alkaline macroreticular anionic exchange resin, contacting with strong-acidic macroreticular cationic exchange resin, contacting with mixed ionic exchange resin, and filtering via microfilter membrane. Its advantages are colourless, no order, high stability and purity, and low cost. It can be used as detergent for semiconductor chip.

The present invention is directed to a stabilized hydrogen peroxide solution containing stabilizers that maintain relatively high hydrogen peroxide stability in both concentrated form and when formulated into a cleaning solution that has a pH above 6 and contains components that normally would have a destabilizing effect on the hydrogen peroxide. The stabilizers include a first cyclic amino methane diphosphonic acid compound stabilizer in combination with a second phosphonic acid based stabilizer (different from the cyclic amino methane diphosphonic acid compound), wherein the weight ratio of the first stabilizer to the second stabilizer is at least about 2:1.

The invention discloses a multistage hydrogenation technology for producing hydrogen peroxide by an anthraquinone process, which comprises the following steps: operating fluid and hydrogen-containing gas in the hydrogenation technology for producing hydrogen peroxide by the anthraquinone process pass through at least two hydrogenation reactors which are connected in series for a hydrogenation reaction in order along flowing direction of materials in the reactors, and a hydrogenation catalyst and a regeneration agent are alternatively filled in an inter-bed or in a bed layer of each hydrogenation reactor. The technology can improve quality level of the operating fluid, prolong the service life of the catalyst and increase the hydrogen peroxide product quality, and has good application prospect in hydrogen peroxide production technology by the anthraquinone process.

The invention relates to a multi-component all-acid fixed bed hydrogen peroxide production process which comprises the following steps: (1) in a hydrogenation tower, carrying out hydrogenation reaction on raw material hydrogen and a carrier anthraquinone under the action of a palladium-gold catalyst to generate a hydroanthraquinone hydrogenation solution; (2) adding phosphoric acid into the hydroanthraquinone hydrogenation solution to adjust the pH value to 3.5 + / -0.2, and reacting with oxygen in the air to obtain an oxidation liquid; and (3) taking pure water as an extraction agent, carryingout countercurrent extraction in an extraction tower to obtain an extraction solution containing hydrogen peroxide, and then purifying with heavy aromatics in a purification tower to obtain a qualified hydrogen peroxide product. According to the production process, a full-acid fixed bed process technology is adopted, balanced regeneration of a working solution system is optimally controlled, partial aluminum peroxide adsorption regeneration is adopted, dust entrainment is reduced, meanwhile, the filtering precision is improved, dust and salt entrainment in a product is greatly reduced, and indexes such as free acid, organic carbon and non-volatile matter are far away; and the product purity is superior to the national standard and companies.

The invention provides a continuous production process for ultra-pure hydrogen peroxide, comprising the following steps: mixing the industrial hydrogen peroxide material with the modified active carbon; then classifying filter by microfiltration membrane and ultrafiltration membrane in sequence; the filtrate is pumped into the distillation column formed by a plurality of columns connected in series; adding metal ion complexing agent into the primary column; performing reverse osmosis on the semi-finished products out of the column before filtering by nanofiltration membrane to get ultra-pure hydrogen peroxide products. The device comprises the following parts: a raw material chute, an active carbon pre-mixer, a microfiltration and ultrafiltration filter, a distillation column formed by a plurality of columns connected in series, a reverse osmosis device, a nanofilter, a finished product receiver, a pump and a shaft; wherein, the raw material chute outlet is connected with the active carbon pre-mixer inlet; the microfiltration and ultrafiltration filter outlet is connected with the pump, the outlet of which is connected with the inlet of the distillation column formed by a plurality of columns connected in series; the outlet of the distillation column formed by a plurality of columns connected in series is connected with the inlet of the reverse osmosis device, the outlet of which is connected with the shaft; the outlet of the shaft is connected with the inlet of the nanofilter, the outlet of which is connected with the finished product receiver.