Preparation method of regeneration agent for hydrogen peroxide prepared by anthraquinone method

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, lower production costs, good social and economic benefits

CN103879969BActive Publication Date: 2016-01-13GUANGXI XINJING TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-01-13

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Abstract

The invention provides a method for preparing a regeneration agent for hydrogen peroxide prepared by an anthraquinone method. The method comprises the following steps: adding dilute acid solution to alumina powder, mixing uniformly, and making strips; after drying in the shade at room temperature, Roast at 600-900K for 3-5 hours to obtain a strip-shaped carrier; impregnate the strip-shaped carrier with the sodium hydroxide solution, take it out, and dry it to obtain the product. The rejuvenating agent of the invention has excellent performance, and each index reaches or exceeds that of the original active regenerating agent, and the preparation process is simple, scientific and reasonable, and can meet industrial requirements.
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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 0.30MPa, a temperature of 328-338K, and the presence of a catalyst, hydrogen gas is introduced. Hydrogenate alkylanthraquinones to alkylhydroanthraquinones, a...

Examples

Embodiment 1

[0023] Alumina powder 950g

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

[0025] (2) After drying in the shade at room temperature, calcination at 600K for 3h to obtain a strip-shaped 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 3h.

Embodiment 2

[0028] Alumina powder 800g

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

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

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

Embodiment 3

[0033] Alumina powder 900g

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

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

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