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Catalyst, preparation method and application, regeneration method of working fluid for hydrogen peroxide production by anthraquinone method, and method for producing hydrogen peroxide

A catalyst and application technology, applied in the direction of peroxide/peroxyhydrate/peroxyacid/superoxide/ozonide, quinone oxide preparation, chemical instruments and methods, etc., can solve the problem of low regeneration efficiency of circulating working fluid problems, to achieve the effect of improving recycling efficiency, prolonging the replacement cycle, and high conversion rate

Active Publication Date: 2021-01-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the technical problem of low regeneration efficiency of the circulating working fluid in the existing process of producing hydrogen peroxide by the anthraquinone method, and provide a device for regeneration of the circulating working fluid in the process of producing hydrogen peroxide by the anthraquinone method. Catalyst that converts anthrone-type compounds in the working fluid into anthraquinone-type compounds with higher regeneration efficiency

Method used

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  • Catalyst, preparation method and application, regeneration method of working fluid for hydrogen peroxide production by anthraquinone method, and method for producing hydrogen peroxide
  • Catalyst, preparation method and application, regeneration method of working fluid for hydrogen peroxide production by anthraquinone method, and method for producing hydrogen peroxide
  • Catalyst, preparation method and application, regeneration method of working fluid for hydrogen peroxide production by anthraquinone method, and method for producing hydrogen peroxide

Examples

Experimental program
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Effect test

Embodiment 1

[0082] (1) Mn(NO 3 ) 2 and Mg(NO 3 ) 2 Dissolve in water to prepare 50mL impregnation solution. In the immersion solution, Mn(NO 3 ) 2 The content is 2g, Mg(NO 3 ) 2 The content is 2.8g. 50g of alumina (purchased from Bailingwei, product number 13-0750) was added to the above impregnation solution, and saturated with stirring at a temperature of 60°C for 8h. Then, the impregnated mixture was dried under normal pressure at 130° C. for 4 hours, followed by calcination at 600° C. for 4 hours, thereby obtaining the catalyst according to the present invention (the composition is listed in Table 1).

[0083] (2) Pack 10 g of the catalyst prepared in step (1) in a miniature fixed-bed reactor to form a catalyst bed. The working liquid is sent from the bottom into the miniature fixed-bed reactor, and reacts with the catalyst under the air atmosphere. Among them, the liquid hourly volumetric space velocity of the working fluid is 20h -1 , the temperature in the catalyst bed w...

Embodiment 2

[0085] Adopt the same method as Example 1 to prepare the catalyst and regenerate the working fluid, the difference is that in step (1), in the impregnation solution, Mn(NO 3 ) 2 The content is 1.4g, Mg(NO 3 ) 2 The content is 4.7g. The composition of the catalyst is listed in Table 1. The experimental results are listed in Table 1.

Embodiment 3

[0087] Adopt the same method as Example 1 to prepare the catalyst and regenerate the working fluid, the difference is that in step (1), in the impregnation solution, Mn(NO 3 ) 2 The content is 1.4g, Mg(NO 3 ) 2 The content is 6.6g. The composition of the catalyst is listed in Table 1. The experimental results are listed in Table 1.

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Abstract

The invention discloses a catalyst, a preparation method and use thereof. The catalyst comprises a carrier, and at least one of the IIA group metal elements and at least one of second metal elements loaded on the carrier, wherein the second metal elements are selected from the VIB group metal elements, the VIIB group metal elements and the VIII group metals element. The invention also discloses a method for regenerating a circulating working solution in production of hydrogen peroxide by anthraquinone process. The invention further discloses a hydrogen peroxide production method adopting the regeneration method. By applying the catalyst provided by the invention to regeneration of the working solution involved in hydrogen peroxide production by anthraquinone process, a high anthranone compound conversion rate can be achieved, the accumulation content of anthrone compounds in the circulating working solution can be reduced, and the cyclic utilization efficiency of the working solution can be enhanced.

Description

technical field [0001] The invention relates to the technical field of hydrogen peroxide production, more specifically, the invention relates to the technical field of regeneration of working fluid in the process of producing hydrogen peroxide by anthraquinone method. Background technique [0002] Hydrogen peroxide (its aqueous solution is called hydrogen peroxide), the molecular formula is H 2 o 2 , is a strong oxidant that can be mixed with water in any ratio. h 2 o 2 In addition to being widely used in the three major fields of bleaching, chemical synthesis and environmental protection, there are also more and more applications in the fields of food, medicine and hygiene, and the electronics industry. Especially with the development of titanium-silicon molecular sieve catalysts, H 2 o 2 As a green oxidant, it has been widely used in the synthesis of many petrochemical products, such as propylene oxide, quinone, caprolactam, benzaldehyde and phenylacetaldehyde. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/34B01J23/745B01J23/26B01J23/755B01J23/75C07C46/04C07C50/16C01B15/023
CPCY02P20/584
Inventor 王伟建潘智勇郑博高国华杨克勇慕旭宏宗保宁
Owner CHINA PETROLEUM & CHEM CORP
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