Solvent system and variable working solution for producing hydrogen peroxide through anthraquinone method, and applications of variable working solution

Abstract

The invention relates to a solvent system and a variable working solution for producing hydrogen peroxide through an anthraquinone method, and applications of the variable working solution. The solvent system comprises, by volume, 40-60% of C9-C10 aromatic hydrocarbon, 10-30% of tetrabutyl urea, and 20-40% of ketone, wherein the ketone has a structure represented by a general formula I, R1 is phenyl, and R2 is selected from phenyl or C1-4 alkyl. The variable working solution comprises alkyl anthraquinone and the solvent system, wherein the weight content of the alkyl anthraquinone in the working solution is 80-500 g / L. According to the present invention, the variable working solution can be used for producing hydrogen peroxide through an anthraquinone method, wherein the ketone participates in the reaction so as to generate hydrogen peroxide, and the solubility of the reactant in the solvent and the solubility of the product in the solvent can be respectively increased through the change of the ketone before and after the reaction so as to substantially improve the hydrogen efficiency; and with the working solution system, the hydrogen efficiency can achieve 12-16 g / L and is increased by more than 30% compared to the prior art. The general formula I is defined in the specification.

Description

technical field [0001] The invention relates to a solvent and a working fluid for producing hydrogen peroxide by an anthraquinone method, and more specifically, to a variable working fluid system for producing hydrogen peroxide by an anthraquinone method. Background technique [0002] Hydrogen peroxide (H 2 o 2 ), widely used in industry, as an oxidizing agent, bleaching agent, disinfectant, polymer initiator and crosslinking agent, widely used in industries such as papermaking, chemical synthesis, military industry, medicine, cosmetics and environmental protection , because it does not produce by-products that pollute the environment during production and use, and only releases oxygen and water. It is an environmentally friendly chemical product, so it is called a green chemical product. With the improvement of people's living standards and the enhancement of environmental protection awareness, hydrogen peroxide will be further promoted to replace chlorine, thus opening u...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem that the solvent system for the production of hydrogen peroxide by the anthraquinone method has a low dissolution rate of reactants or products, thus limiting the reaction, the present invention provides a solvent system for the production of hydrogen peroxide by the anthraquinone method and a variable working fluid. The liquid not only reacts itself to generate hydrogen peroxide during the reaction process, but also dissolves more reactants and products at different stages to improve the hydrogen efficiency of the working liquid.

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