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Solvent system and its application in the working solution of hydrogen peroxide produced by anthraquinone method

An anthraquinone method, hydrogen peroxide technology, applied in the directions of peroxide/peroxyhydrate/peroxyacid/superoxide/ozone, chemical instruments and methods, inorganic chemistry, etc., can solve the hydrogenation efficiency and oxidation efficiency of hydrogen peroxide It is not ideal and the cost of components is difficult to obtain, so as to shorten the oxidation time, improve the selectivity and improve the hydrogen efficiency.

Active Publication Date: 2019-01-25
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 problems of unsatisfactory hydrogenation efficiency and oxidation efficiency in the production of hydrogen peroxide by anthraquinone method in the prior art, difficulty in obtaining some components and high cost, the present invention provides a five-component solvent system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] With heavy aromatics: trioctyl phosphate: phenylethyl alcohol: diglyl dimethyl ether: acetic acid = 55:20:14:10:1 (volume ratio) as the working fluid medium, the solubility of 2-ethylanthraquinone is 120 g / L . The hydrogenation temperature is 50°C, the hydrogenation pressure is 0.25MPa, and the space velocity is 5h -1 , The ratio of hydrogen to liquid is 12:1. The oxidation temperature is 50°C, and the oxidation pressure is 0.20MPa. The hydrogen efficiency is 8.87 g / l.

Embodiment 2

[0031] With heavy aromatics: trioctyl phosphate: phenylethyl alcohol: diglyl dimethyl ether: acetic acid = 60:15:12:12:1 (volume ratio) as the working fluid medium, the solubility of 2-ethylanthraquinone is 170 g / L . The hydrogenation temperature is 55°C, the hydrogenation pressure is 0.30MPa, and the space velocity is 5h -1 , The ratio of hydrogen to liquid is 10:1. The oxidation temperature is 55°C, and the oxidation pressure is 0.20MPa. The hydrogen efficiency is 10.69 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, 40-70% of heavy aromatic hydrocarbon, 5-30% of trioctyl phosphate, 10-20% of 2-phenylethanol, 10-20% of diethanol dimethyl ether, and 0.5-5% of acetic acid. According to the present invention, the raw material components of the solvent system are easy to obtain; with the application of the solvent system to prepare the working liquid, compared to the working liquid prepared from the heavy aromatic hydrocarbon and trioctyl phosphate two-component solvent system in the prior art, the working liquid prepared from the solvent system of the present invention has the good hydrogen efficiency under the production condition.

Description

technical field [0001] The invention relates to a solvent system in an anthraquinone method for producing hydrogen peroxide working liquid 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 oxidizing agent, hydrogen peroxide has much higher selectivity than other oxidizing agents 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, among which the treatme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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