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Preparation method of regenerator for preparing hydrogen peroxide by anthraquinone process

A technology of hydrogen peroxide and regenerant, applied in chemical instruments and methods, peroxide/peroxyhydrate/peroxyacid/superoxide/ozone, chemical recovery, etc., can solve the difficult control of operating process conditions and other problems, to achieve the effects of excellent physical and chemical properties, suitable for large-scale production, good social and economic benefits

Active Publication Date: 2014-06-25
GUANGXI XINJING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the operating conditions of this method are difficult to control

Method used

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  • Preparation method of regenerator for preparing hydrogen peroxide by anthraquinone process
  • Preparation method of regenerator for preparing hydrogen peroxide by anthraquinone process

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Aluminum oxide powder 950 g

[0024] (1) Add 50 g of dilute nitric acid aqueous solution with a concentration of 10% by volume to the alumina powder, mix well, and make strips;

[0025] (2) After drying in the shade at room temperature, it was calcined at 600K for 3 h to obtain a strip carrier;

[0026] (3) Immerse the strip-shaped carrier in 1L of 0.8mol / L sodium hydroxide solution for 1 minute, take it out, and dry it at 350K for 3 hours.

Embodiment 2

[0028] Aluminum oxide powder 800g

[0029] (1) Add 100 g of dilute nitric acid aqueous solution with a concentration of 20% by volume to the alumina powder, mix well, and make strips;

[0030] (2) After drying in the shade at room temperature, roast at 700 K for 3.5 hours to obtain a strip carrier;

[0031] (3) Immerse the strip-shaped carrier in 800 ml of 2 mol / L sodium hydroxide solution for 10 seconds, take it out, and dry it at 370 K for 3.5 hours to obtain it.

Embodiment 3

[0033] Aluminum oxide powder 900g

[0034] (1) After mixing the alumina powder and the safflower powder, add 80 g of glacial acetic acid aqueous solution with a concentration of 40% by volume, mix well, and make strips;

[0035] (2) After drying in the shade at room temperature, roast at 780 K for 4 hours to obtain a strip carrier;

[0036] (3) Soak the strip-shaped carrier in 600 ml of 3 mol / L sodium hydroxide solution for 2 minutes, take it out, and dry it at 380K for 4 hours.

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Abstract

The invention provides a preparation method of a regenerator for preparing hydrogen peroxide by an anthraquinone process, which comprises the following steps: adding a dilute acid solution into aluminum oxide powder, uniformly mixing and making a strip; drying at room temperature in the shade, and roasting at 600-900k for 3-5 hours to obtain a strip carrier; and impregnating the strip carrier in a sodium hydroxide solution, taking out, and drying. The regenerator has excellent properties, all indexes achieve or exceed the original active regenerator, and the preparation technique is simple, scientific and reasonable and can satisfy the industrial requirements.

Description

technical field [0001] The invention relates to the production technology of hydrogen peroxide industrial regeneration agent, in particular to a preparation method of hydrogen peroxide regeneration agent prepared by anthraquinone method. technical background [0002] Hydrogen peroxide, its aqueous solution is commonly known as hydrogen peroxide, is a strong oxidizing agent, which can be used in bleaching agents, coloring agents, raw materials for inorganic or organic peroxides, oxidizing agents, bactericides, disinfectants, preservatives, electroplating solutions, rocket power fuel etc. The industrial production method for preparing hydrogen peroxide is mainly the anthraquinone method. The process is to prepare a working solution with an alkyl anthraquinone and an organic solvent. Under the conditions of a pressure of 0.30 MPa, a temperature of 328-338K, and the presence of a catalyst, hydrogen gas is introduced. Hydrogenate alkylanthraquinones to alkylhydroanthraquinones, ...

Claims

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Application Information

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IPC IPC(8): C01B15/023
CPCY02P20/584
Inventor 郭子添阮恒黄世勇黄青则黄媚黄秋萍
Owner GUANGXI XINJING TECH
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