Efficient extraction process in hydrogen peroxide production process

Abstract

The invention discloses an efficient extraction process in a hydrogen peroxide production process, relates to the technical field of hydrogen peroxide production, and aims to solve the problem of low hydrogen peroxide extraction efficiency caused by influence on the hydrogen peroxide content of raffinate due to non-uniform dispersion of overflow drops and unstable interface in the existing hydrogen peroxide extraction process. The method comprises the following steps: 1, oxidizing liquid enters the lower end of an extraction cavity through an oxidizing liquid inlet pipe, and pure water is conveyed to the upper end of the extraction cavity through a water inlet pipe; step 2, enabling a movable shaft provided with a sieve plate to do reciprocating vertical and rotary motion, and enabling the movable shaft to enter a purification tower through an extraction liquid outlet pipe after a set concentration is reached; step 3, enabling the extract liquor to flow downwards in the purification tower, enabling the heavy aromatics to enter a ceramic different saddle ring through a pressure pump, carrying out counter-current extraction, and enabling purified hydrogen peroxide to enter a hydrogen peroxide storage tank for storage; step 4 to step 6, separating alkali and water from the raffinate through a raffinate separator, a drying tower and an alkali separator; and 7, conveying to a carclazyte bed through a hose, and regenerating to obtain ethyl anthraquinone.

Description

technical field [0001] The invention relates to the technical field of hydrogen peroxide production, in particular to an efficient extraction process in the production process of hydrogen peroxide. Background technique [0002] Hydrogen peroxide is a light blue viscous liquid that can be miscible with water in any proportion. It is a strong oxidant and is a colorless transparent liquid. Its aqueous solution is suitable for medical wound disinfection, environmental disinfection and food disinfection. Under normal circumstances, it will slowly decompose into water and oxygen. In terms of preparation methods, anthraquinone method is often used to prepare hydrogen peroxide. 2-Ethyl anthraquinone is used as the carrier, heavy aromatics and trioctyl phosphate are used as solvents. The working fluid is hydrogenated, oxidized, extracted, purified and other processes to produce finished hydrogen peroxide, and the working fluid is recycled in the system. The extraction system uses pur...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-efficiency extraction process in the hydrogen peroxide production process to solve the hydrogen peroxide extraction efficiency caused by the uneven dispersion of overflow droplets and the unstable interface affecting the hydrogen peroxide content of the raffinate in the extraction process proposed in the above background technology lower question

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