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Working solution for producing hydrogen peroxide by anthraquinone process

A technology of hydrogen peroxide and working fluid, applied in the direction of peroxide/peroxy hydrate/peroxyacid/superoxide/ozonide, inorganic chemistry, chemical instruments and methods, etc., can solve the extraction efficiency of hydrogen peroxide extraction tower Low, low yield of hydrogen peroxide, low concentration of hydrogen peroxide, etc., to achieve the effect of reducing equipment investment costs, increasing the solubility of anthraquinone, and reducing the content of hydrogen peroxide

Inactive Publication Date: 2016-05-25
CHINA TIANCHEN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low distribution coefficient of the current working fluid, the extraction efficiency of the hydrogen peroxide extraction tower is low, the yield of hydrogen peroxide is low, and the concentration of hydrogen peroxide in the product is low

Method used

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  • Working solution for producing hydrogen peroxide by anthraquinone process
  • Working solution for producing hydrogen peroxide by anthraquinone process

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Working solution preparation method is as follows: mixed solvent: heavy aromatic hydrocarbon 50% (v / v), butyl phthalate 50% (v / v); working carrier: total anthraquinone content 120g / L, wherein 2-ethyl anthracene Quinone 110g / L, 2-ethyltetrahydroanthraquinone 10g / L.

Embodiment 2

[0025] The working solution preparation method is as follows: mixed solvent: heavy aromatic hydrocarbon 60% (v / v), pentyl phthalate 40% (v / v); working carrier: total anthraquinone content 130g / L, wherein 2-ethyl anthracene Quinone 100g / L, 2-ethyltetrahydroanthraquinone 30g / L.

Embodiment 3

[0027] The working solution ratio is as follows: mixed solvent: heavy aromatics 65% (v / v), hexyl phthalate 35% (v / v); working carrier: total anthraquinone content 150g / L, of which 2-ethylanthracene Quinone 90g / L, 2-ethyltetrahydroanthraquinone 60g / L.

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Abstract

The invention provides a working solution for producing hydrogen peroxide by an anthraquinone process. The working solution comprises a mixed solvent and a working carrier, wherein the mixed solvent is prepared from the following components in percentage by volume: 50%-80% of heavy aromatics and 20%-50% of phthalic acid; and the working carrier is a mixture of alkylanthraquinone and corresponding tetralin alkylanthraquinone. The working solution for producing hydrogen peroxide by the anthraquinone process has a relatively large distribution coefficient (100-400); the amount of an extracting agent in the extraction process can be reduced; the content of hydrogen peroxide in extraction raffinate can be reduced; the yield of hydrogen peroxide can be improved; meanwhile, the height of an extraction tower can be reduced; the equipment investment cost can be reduced; and meanwhile, the working solution has relatively high anthraquinone solubility.

Description

technical field [0001] The invention belongs to the technical field of hydrogen peroxide preparation, and in particular relates to a working fluid for producing hydrogen peroxide by an anthraquinone method. Background technique [0002] Hydrogen peroxide is an aqueous solution of hydrogen peroxide. It is known as the cleanest oxidant because of its non-polluting characteristics during use. At present, hydrogen peroxide is mainly used to prepare products such as bleaching agent, disinfectant, deoxidizer, polymer initiator and crosslinking agent, and is widely used in papermaking, textile, medicine, chemical industry, environmental protection and other industries. In recent years, my country's hydrogen peroxide industry has developed rapidly, and its production capacity has grown at a rate of 15% per year. At present, the national production capacity has exceeded 5 million tons per year (calculated at a concentration of 27.5%). In addition, with the rapid promotion of hydroge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/023
CPCC01B15/023
Inventor 史文涛曹立王志文杨克俭
Owner CHINA TIANCHEN ENG
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