Rejuvenating agent for hydrogen peroxide prepared by anthraquinone method and preparation method thereof

Abstract

The invention provides a regenerator for preparing hydrogen peroxide by an anthraquinone process and a preparation method thereof. The raw materials are aluminum oxide powder and sesbania powder. The preparation method comprises the following steps: adding a dilute acid solution into aluminum oxide powder and sesbania 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, 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 regeneration agent for hydrogen peroxide prepared by anthraquinone method and a preparation method thereof. Background technique

[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 alkylhydroan...

Examples

Embodiment 1

[0029] Alumina powder 950g Tianjing powder 50g

[0030] (1) After the de-alumina powder is mixed with the safflower powder, add 50g of an aqueous solution of nitric acid with a concentration of 10% by volume, mix evenly, and make strips;

[0031] (2) After drying in the shade at room temperature, roast at 600K for 3 hours to obtain a strip carrier;

[0032] (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 to obtain it.

Embodiment 2

[0034] Alumina powder 800g Sesame powder 200g

[0035] (1) After mixing alumina powder and sage powder, add 100g of nitric acid aqueous solution with a concentration of 20% by volume, mix evenly, and make strips;

[0036] (2) After drying in the shade at room temperature, roast at 700K for 3.5 hours to obtain a strip carrier;

[0037] (3) Soak 800ml of 2mol / L sodium hydroxide solution on the strip carrier, and dry it at 370K for 3.5h to obtain the product.

Embodiment 3

[0039] Alumina powder 900g Sesame powder 100g

[0040] (1) After mixing the alumina powder and the celadon powder, add 80g of glacial acetic acid aqueous solution with a concentration of 40% by volume, mix evenly, and make strips;

[0041] (2) After drying in the shade at room temperature, roast at 780K for 4 hours to obtain a strip carrier;

[0042] (3) Immerse the strip-shaped carrier in 600ml of 3mol / L sodium hydroxide solution for 10 seconds, take it out, and dry it at 380K for 4 hours to obtain it.

technical field

[0001] The invention relates to the production technology of hydrogen peroxide industrial regeneration agent, in particular to a regeneration agent for hydrogen peroxide prepared by anthraquinone method and a preparation method thereof. Background technique

[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 alkylhydroan...

Examples

Embodiment 1

[0029] Alumina powder 950g Tianjing powder 50g

[0030] (1) After the de-alumina powder is mixed with the safflower powder, add 50g of an aqueous solution of nitric acid with a concentration of 10% by volume, mix evenly, and make strips;

[0031] (2) After drying in the shade at room temperature, roast at 600K for 3 hours to obtain a strip carrier;

[0032] (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 to obtain it.

Embodiment 2

[0034] Alumina powder 800g Sesame powder 200g

[0035] (1) After mixing alumina powder and sage powder, add 100g of nitric acid aqueous solution with a concentration of 20% by volume, mix evenly, and make strips;

[0036] (2) After drying in the shade at room temperature, roast at 700K for 3.5 hours to obtain a strip carrier;

[0037] (3) Soak 800ml of 2mol / L sodium hydroxide solution on the strip carrier, and dry it at 370K for 3.5h to obtain the product.

Embodiment 3

[0039] Alumina powder 900g Sesame powder 100g

[0040] (1) After mixing the alumina powder and the celadon powder, add 80g of glacial acetic acid aqueous solution with a concentration of 40% by volume, mix evenly, and make strips;

[0041] (2) After drying in the shade at room temperature, roast at 780K for 4 hours to obtain a strip carrier;

[0042] (3) Immerse the strip-shaped carrier in 600ml of 3mol / L sodium hydroxide solution for 10 seconds, take it out, and dry it at 380K for 4 hours to obtain it.

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