Solvent system for producing hydrogen peroxide working liquid by anthraquinone method and use thereof

A working fluid, anthraquinone method technology, applied in peroxide/peroxyhydrate/peroxyacid/superoxide/ozonide, chemical instruments and methods, inorganic chemistry, etc. Large, complex synthesis process and other problems, to achieve the effect of improving hydrogen efficiency, improving solubility, and improving production capacity

Inactive Publication Date: 2017-05-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN101798065A discloses a working liquid formula for the production of hydrogen peroxide by anthraquinone method, wherein the solvent composition is: 65% to 80% of heavy aromatics, 5% to 25% of trioctyl phosphate, N-phenyl N-ethyl Benzamide 4.5%~17.8%, the solubility of the working carrier is large, the density of the working fluid is moderate, the working load is large, and the degradation rate of anthraquinone is reduced
Although the three-component system improves the solubility of anthraquinone and improves the hydrogenation efficiency, the synthesis process of the third component N-phenyl N-ethylbenzamide is complicated and difficult to purify, while increasing the production cost of hydrogen peroxide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Using heavy aromatic hydrocarbons: trioctyl phosphate: 2-phenylethyl alcohol: ethyl ether = 70:20:9:1 (volume ratio) as the working fluid medium, the solubility of 2-ethylanthraquinone is 170 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. Hydrogen efficiency is 10.24 g / L

Embodiment 2

[0021] With heavy aromatics: trioctyl phosphate: 2-phenylethyl alcohol = 75:19:5:1 (volume ratio) as the working fluid medium, the solubility of 2-ethylanthraquinone is 150 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 8.78 g / l.

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Abstract

The invention discloses a solvent system for producing a hydrogen peroxide working liquid by an anthraquinone method and a use thereof. The solvent system comprises, by volume, 65% to 80% of a heavy aromatic hydrocarbon, 10% to 30% of trioctyl phosphate, 5% to 20% of 2-phenethyl alcohol and 0.5% to 5% of diethyl ether, and preferably comprises, by volume, 70% to 75% of a heavy aromatic hydrocarbon, 10% to 20% of trioctyl phosphate, 5% to 15% of 2-phenethyl alcohol and 1% to 2% of diethyl ether. The solvent system utilizes easily available components, is applied to the working fluid, improves the solubility of anthraquinone, improves the hydrogenation efficiency and has a wide application prospect in the process of hydrogen peroxide production.

Description

technical field [0001] The invention relates to a solvent system for producing hydrogen peroxide working fluid by an anthraquinone method 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 treatmen...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C01B15/023
Inventor贾立明徐会青白红鑫刘全杰王伟
OwnerCHINA PETROLEUM & CHEM CORP