Solvent system for producing fully acidic hydrogen peroxide working solution by anthraquinone method

A technology of working liquid and anthraquinone method, which is applied in the fields of peroxide/peroxy hydrate/peroxyacid/superoxide/ozonide, chemical instruments and methods, inorganic chemistry, etc., which can solve the problems of heavy workload and solubility Large size, complex synthesis process and other problems, to achieve the effect of reducing the economic cost of solvents, increasing production capacity, and improving solubility

Inactive Publication Date: 2019-10-01
PINGHU PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

CN101798065A discloses a working liquid formula for the production of hydrogen peroxide by anthraquinone method, wherein the solvent is composed of: heavy aromatic hydrocarbon 65%~80%, trioctyl phosphate 5%~25%, 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, a

Method used

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Examples

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Effect test

Embodiment 1

[0020] In the production of hydrogen peroxide by anthraquinone method, heavy aromatics (C 9 ~C 10 ): dioctyl phosphate: tetrabutyl urea=80:10:10 (volume ratio) is the solvent system of working fluid, and alkylanthraquinone solubility is 162g / L. The hydrogenation temperature is 45°C, the hydrogenation pressure is 0.25MPa, and the space velocity is 18h -1 , the ratio of hydrogen to liquid is 5:1. The oxidation temperature is 51°C, and the oxidation pressure is 0.16MPa. The hydrogenation efficiency was 9.3g / L.

Embodiment 2

[0027] With heavy aromatics (C 9 ~C 10 ): dioctyl phosphate: tetrabutyl urea=80:5:15 (volume ratio) is the solvent system of working fluid, and 2 alkyl anthraquinone solubility is 171g / L. The hydrogenation temperature is 48°C, the hydrogenation pressure is 0.28MPa, and the space velocity is 24h -1 , the ratio of hydrogen to liquid is 6.5:1. The oxidation temperature is 53°C and the oxidation pressure is 0.20MPa. The hydrogenation efficiency was 10.2 g / L.

Embodiment 3

[0032] With heavy aromatics (C 9 ~C 10 ): dioctyl phosphate: tetrabutyl urea=75:7:18 (volume ratio) is the solvent system of working fluid, and alkylanthraquinone solubility is 178g / L. The hydrogenation temperature is 50°C, the hydrogenation pressure is 0.33MPa, and the space velocity is 28h -1 , the ratio of hydrogen to liquid is 7:1. The oxidation temperature is 54°C and the oxidation pressure is 0.24MPa. The hydrogenation efficiency was 10.8g / L.

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Abstract

The invention relates to a solvent system, and in particular relates to a solvent system for producing a fully acidic hydrogen peroxide working solution by an anthraquinone method, belonging to the technical field of organic synthesis. The solvent system comprises, by volume, 70-85% of heavy aromatic hydrocarbon (C9-C10), 5-15% of dioctyl phosphate and 10-20% of tetrabutyl urea. The dioctyl phosphate is a colorless transparent oily liquid with a density of 0.969-0.975 g/cm<3>. The solvent system is formed by compounding three-component solvents, so that the solubility of alkyl anthraquinone isimproved, the hydrogenation efficiency is improved, and the economic cost of the solvent is reduced.

Description

technical field [0001] The invention relates to a solvent system, in particular to a solvent system for producing fully acidic hydrogen peroxide working liquid by an anthraquinone method, and belongs to the technical field of organic synthesis. Background technique [0002] In the process of producing hydrogen peroxide by anthraquinone method, the working fluid is mainly composed of the working fluid carrier and the solvent for dissolving the working carrier. The carrier of the working fluid is an alkylanthraquinone derivative, generally 2-ethylanthraquinone, amylanthraquinone, or tert-butylanthraquinone. Solvent composition has a great influence on the efficiency of hydrogenation, oxidation and extraction processes, which directly determines the production capacity of hydrogen peroxide devices. Therefore, how to choose a solvent with excellent comprehensive performance such as strong solubility to the working fluid carrier, good chemical stability, low solubility in water ...

Claims

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Application Information

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IPC IPC(8): C01B15/023
CPCC01B15/023
Inventor 杨卫东高军洪日钱立堂范昌海奚桢浩刘其祥李以名周轶
Owner PINGHU PETROCHEM
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