Technology for producing hydrogen peroxide by anthraquinone process

A hydrogen peroxide, anthraquinone method technology, applied in the direction of peroxide/peroxyhydrate/peroxyacid/superoxide/ozone, chemical instruments and methods, inorganic chemistry, etc., can solve the problem of hydrogenation liquid gas-liquid separator The outlet pipeline and the hydrogenation liquid filter are blocked, the production cannot be carried out smoothly, and the hydrogen efficiency is not high.

Pending Publication Date: 2019-11-12
江苏中煦科技有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The hydrogenation efficiency of the hydrogenation reaction in the existing process is not high, and the 2-ethylhydroanthraquinone and 2-ethyltetrahydroanthraquinone produced by the reaction are prone to precipitation, resulting in the hydrogenation liquid gas-liquid separator ...

Method used

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  • Technology for producing hydrogen peroxide by anthraquinone process
  • Technology for producing hydrogen peroxide by anthraquinone process

Examples

Experimental program
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Embodiment Construction

[0062] One, main equipment of the present invention:

[0063] Hydrogenation tower, oxidation tower, extraction tower, purification tower, flash tank, clay bed, hydrogenated clay bed, hydrogen buffer filter, air filter, hydrogenation liquid filter, security filter, primary filter, secondary filter , working fluid thermostat, working fluid heater (hydrogenation), working fluid heat exchanger (hydrogenation), hydrogenated fluid cooler, pure water heater, extract cooler, primary flash cooler, secondary flash Cooler, hydrogenated liquid storage tank, oxidizing liquid high level tank, regeneration liquid storage tank, pure water storage tank, primary flash tank, secondary flash tank, 1# tail gas condensate receiving tank, 2# tail gas condensate receiving tank, hydrogenation Liquid pumps, oxidation liquid pumps, hydrogenation liquid circulation pumps, regeneration liquid pumps, pure water pumps, phosphoric acid pumps, phosphoric acid metering pumps, aromatic hydrocarbon pumps.

[00...

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Abstract

The invention relates to a technology for producing hydrogen peroxide by an anthraquinone process, and relates to the technical field of industrial production of hydrogen peroxide by the anthraquinoneprocess. The technology comprises a hydrogenation reaction, an oxidation reaction, extraction, a purification process and a regeneration process; in the hydrogenation reaction, a mixed solution formed by mixing a heavy aromatic hydrocarbon, trioctyl phosphate, 2-ethylanthraquinone, tetrabutyl urea and 2-ethyltetrahydroanthracene reacts with hydrogen under the action of a palladium catalyst to obtain a hydrogenated solution; and in the oxidation reaction, the hydrogenated solution containing phosphoric acid is oxidized by oxygen in air to obtain an oxidized solution. The technology can reducethe consumption of total anthraquinone, can increase the oxidation yield of the oxidation process by using the working fluid system, and makes the amount of the generated residual liquid small.

Description

technical field [0001] The invention relates to the technical field of industrial production of hydrogen peroxide by an anthraquinone method. Background technique [0002] hydrogen peroxide (H 2 o 2 ) is a strong oxidant, and its aqueous solution is commonly known as hydrogen peroxide, which has been widely used in medical, military and industrial fields. [0003] The traditional method of industrial scale production is the anthraquinone method, which mainly includes hydrogenation process, extraction and purification process and post-treatment process steps. Among them, the hydrogenation reaction mechanism is: under the action of palladium (Pd) catalyst, 2-ethylanthraquinone (EAQ) and 2-ethyltetrahydroanthraquinone (H 4 EAQ) react with hydrogen to generate 2-ethylhydroanthraquinone (HEAQ) and 2-ethyltetrahydroanthraquinone (H 4 HEAQ). The reaction formula is as follows: [0004] [0005] During the hydrogenation reaction, heavy aromatic hydrocarbons are used as solv...

Claims

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Application Information

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IPC IPC(8): C01B15/023
CPCC01B15/023
Inventor 刘其祥刘成福贾辉和芳奚桢浩刘超
Owner 江苏中煦科技有限公司
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