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Solvent system in working liquid for hydrogen peroxide production with anthraquinone method, and applications thereof

A technology of hydrogen peroxide, anthraquinone method, applied in the directions of peroxide/peroxyhydrate/peroxyacid/superoxide/ozone, inorganic chemistry, chemical instruments and methods, etc., can solve the problem of hydrogenation efficiency and oxidation Efficiency is not ideal and other problems, to achieve the effect of improving hydrogenation efficiency, high hydrogen efficiency, and good hydrogen efficiency

Inactive Publication Date: 2017-05-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the unsatisfactory hydrogenation efficiency and oxidation efficiency of the hydrogen peroxide produced by the anthraquinone method in the prior art, the present invention provides a solvent system for the hydrogen peroxide working fluid produced by the anthraquinone method and its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] With heavy aromatics: trioctyl phosphate: 2-methylcyclohexyl acetate: 2-phenylethyl alcohol = 70:10:10:10 (volume ratio) as the working fluid medium, effective anthraquinones (2-ethylanthraquinone and 2-Ethyltetrahydroanthraquinone) has a solubility of 165 g / L. The hydrogenation temperature is 50°C, the hydrogenation pressure is 0.25MPa, and the space velocity is 10h -1 , the ratio of hydrogen to liquid is 6:1, the oxidation temperature is 50°C, and the oxidation pressure is 0.20MPa. The hydrogen efficiency is 10.38 g / L.

Embodiment 2

[0029] With heavy aromatics: trioctyl phosphate: 2-methylcyclohexyl acetate: 2-phenylethyl alcohol = 70:12:10:8 (volume ratio) as the working fluid medium, effective anthraquinones (2-ethylanthraquinone and 2-Ethyltetrahydroanthraquinone) has a solubility of 180 g / L. The hydrogenation temperature is 55°C, the hydrogenation pressure is 0.30MPa, and the space velocity is 15h -1 , the ratio of hydrogen to liquid is 6:1, the oxidation temperature is 50°C, and the oxidation pressure is 0.20MPa. The hydrogen efficiency is 11.65 g / l.

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Abstract

The invention relates to a solvent system in a working liquid for hydrogen peroxide production with an anthraquinone method, wherein the solvent system comprises, by volume, 65-80% of heavy aromatic hydrocarbon, 5-15% of trioctyl phosphate, 5-15% of 2-methylcyclohexyl acetate, and 5-15% of 2-phenylethanol. According to the present invention, with the application of the solvent system to prepare the working liquid, the good hydrogen efficiency can be provided during the hydrogen peroxide production process with the anthraquinone method; and the density difference between the working liquid and the water is high, and the surface tension of the working liquid is high, such that extraction and other subsequent operations are easily performed.

Description

technical field [0001] The invention relates to a solvent system in an anthraquinone method for producing hydrogen peroxide working fluid and its application. Background technique [0002] Hydrogen peroxide is an important chemical product, which is widely used in papermaking, chemical industry, food, environmental protection and other fields. Many valuable chemical products can be prepared from hydrogen peroxide, such as inorganic peroxyacids and their salts, epoxides, organic peroxides and meaningful chemical reaction intermediates. As a weak oxidant, hydrogen peroxide has much higher selectivity than other oxidants in organic synthesis. Hydrogen peroxide is used as a bleaching agent in the textile industry and papermaking industry, as an oxidizing agent in chemical synthesis, as a disinfectant and bactericide in the food and pharmaceutical industries, and can be used to treat toxic wastewater in terms of environmental protection. The most effective are sulfides, cyanide...

Claims

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Application Information

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IPC IPC(8): C01B15/023
Inventor 贾立明徐会青刘全杰王伟
Owner CHINA PETROLEUM & CHEM CORP
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