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Method for preparing hydrogen peroxide

A technology of hydrogen peroxide and tetrahydroethylanthraquinone, applied in chemical instruments and methods, peroxide/peroxyhydrate/peroxyacid/superoxide/ozonide, inorganic chemistry, etc., can solve adverse Hydrogen anthraquinone oxidation, high tetrahydroalkylanthraquinone content, tetrahydroalkylanthraquinone can not be directly purchased and other problems, to achieve the effect of slow degradation of anthraquinone, less consumption of anthraquinone, and reduce the side reaction of anthraquinone hydrogenation

Inactive Publication Date: 2011-04-06
SHANGHAI FULEI INT TRADING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, the content of tetrahydroalkylanthraquinone is high, which is not conducive to the oxidation of hydroanthraquinone generated after hydrogenation of the working fluid; and tetrahydroalkylanthraquinone cannot be purchased directly, and needs to be synthesized from alkylanthraquinone

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0029] The present invention uses ethylanthraquinone (EAQ), amylanthraquinone (AAQ), tetrahydroamylanthraquinone (H 4 AAQ) and tetrahydroethylanthraquinone (H 4 EAQ) and organic solvents, wherein the organic solvent is heavy aromatics (Ar) and trioctyl phosphate (TOP) mixed in a volume ratio of 3:1, the mass percentage of total anthraquinone and working fluid 16 %; total ethylanthraquinone (EAQ+H 4 EAQ) to the total anthraquinone mole percentage is 63 %; total amyl anthraquinone (AAQ+H 4 AAQ) and the total anthraquinone molar percentage is 37%; Tetrahydroalkylanthraquinone (H 4 EAQ+H 4 AAQ) to alkyl anthraquinone (EAQ+AAQ) molar ratio is 0.39:1.

[0030]The working solution prepared from the above components is used for production of hydrogen peroxide in the whole-process device for producing hydrogen peroxide by anthraquinone method (including hydrogenation, oxidation, extraction, and post-treatment processes). The catalyst is a spherical palladium catalyst. Continuous a...

Embodiment 2

[0032] The present invention uses ethylanthraquinone (EAQ), amylanthraquinone (AAQ), tetrahydroamylanthraquinone (H 4 AAQ) and tetrahydroethylanthraquinone (H 4 EAQ) and organic solvents, wherein the organic solvent is heavy aromatics (Ar) and trioctyl phosphate (TOP) mixed in a volume ratio of 3:1, the mass percentage of total anthraquinone and working fluid 30%; total ethylanthraquinone (EAQ+H 4 EAQ) to the total anthraquinone mole percentage is 61 %; total amyl anthraquinone (AAQ+H 4 AAQ) and the total anthraquinone molar percentage is 39%; Tetrahydroalkylanthraquinone (H 4 EAQ+H 4 AAQ) to alkyl anthraquinone (EAQ+AAQ) molar ratio is 1.61:1.

[0033] The working solution prepared from the above components is used for production of hydrogen peroxide in the whole-process device for producing hydrogen peroxide by anthraquinone method (including hydrogenation, oxidation, extraction, and post-treatment processes). The catalyst is a spherical palladium catalyst. Continuous a...

Embodiment 3

[0035] The present invention uses ethylanthraquinone (EAQ), amylanthraquinone (AAQ), tetrahydroamylanthraquinone (H 4 AAQ) and tetrahydroethylanthraquinone (H 4 EAQ) and organic solvents, wherein the organic solvent is heavy aromatics (Ar) and trioctyl phosphate (TOP) mixed in a volume ratio of 3:1, the mass percentage of total anthraquinone and working fluid 20%; total ethylanthraquinone (EAQ+H 4 EAQ) and the total anthraquinone mole percentage is 70%; total amyl anthraquinone (AAQ+H 4 AAQ) and the total anthraquinone molar percentage is 30%; Tetrahydroalkylanthraquinone (H 4 EAQ+H 4 AAQ) to alkyl anthraquinone (EAQ+AAQ) molar ratio is 0.30:1.

[0036] The working solution prepared from the above components is used for production of hydrogen peroxide in the whole-process device for producing hydrogen peroxide by anthraquinone method (including hydrogenation, oxidation, extraction, and post-treatment processes). The catalyst is a spherical palladium catalyst. Continuous a...

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PUM

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Abstract

The invention discloses a method for preparing hydrogen peroxide. The hydrogen peroxide is prepared by hydrogenating, oxidizing and extracting working solution prepared from alkyl anthraquinone and an organic solvent. The method is characterized in that: the working solution is prepared from ethyl anthraquinone, amyl anthraquinone, tetrahydro amyl anthraquinone, tetrahydro ethyl anthraquinone and the organic solvent; the total anthraquinone accounts for 16 to 30 mass percent of the working solution; the total ethyl anthraquinone accounts for 46 to 75 molar percent of the total anthraquinone; the total amyl anthraquinone accounts for 25 to 54 molar percent of the total anthraquinone; the molar ratio of the tetrahydro ethyl anthraquinone to the ethyl anthraquinone is 0.26-2.67:1; and the organic solvent is mixture of arene and trioctyl phosphate, mixture of heavy aromatic and tetra-n-butylurea or mixture of the heavy aromatic, the trioctyl phosphate and the tetra-n-butylurea. Compared with the prior art, the method has the advantages of simplicity, convenience in operation, safety, readily available raw materials, low cost, high productivity and no environmental pollution, and is a hydrogen peroxide production process with extremely high industrial production value.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a preparation method for producing hydrogen peroxide by an anthraquinone method. Background technique [0002] Hydrogen peroxide, chemical formula H 2 o 2 , its aqueous solution is commonly known as hydrogen peroxide, has oxidation or reduction, can be used as oxidant, bleach, disinfectant and dechlorination agent, and can also be used as rocket fuel, organic or inorganic peroxide, foam plastic and other porous substances. As a production method of hydrogen peroxide, the anthraquinone method is the most mature method in industry. The quinone reacts with hydrogen under the action of a catalyst to generate the corresponding hydroanthraquinone, which is converted into anthraquinones again after being oxidized by air, and at the same time generates hydrogen peroxide, which can be extracted with water to obtain the hydrogen peroxide product , and then the working fluid c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/023
Inventor 袁成龙
Owner SHANGHAI FULEI INT TRADING
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