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Hydrogenation method for hydrogen peroxide preparation through anthraquinone process and method for producing hydrogen peroxide

A technology of hydrogen peroxide and anthraquinone method, applied in peroxide/peroxyhydrate/peroxyacid/superoxide/ozonide, chemical instruments and methods, inorganic chemistry, etc.

Inactive Publication Date: 2016-07-27
HUNAN CHANGLING PETROCHEM SCI & TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in traditional trickle bed and fluidized bed technology, solve the problem of how to improve hydrogenation efficiency, provide a kind of hydrogenation method of anthraquinone method for hydrogen peroxide and a kind of method of production hydrogen peroxide

Method used

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  • Hydrogenation method for hydrogen peroxide preparation through anthraquinone process and method for producing hydrogen peroxide
  • Hydrogenation method for hydrogen peroxide preparation through anthraquinone process and method for producing hydrogen peroxide
  • Hydrogenation method for hydrogen peroxide preparation through anthraquinone process and method for producing hydrogen peroxide

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Embodiment 1

[0112] This embodiment is used to illustrate the preparation method of hydrogen peroxide of the present invention.

[0113] The slurry mixing device, the first mixing device, the second mixing device and the separating device used in this embodiment are as follows Figure 4 As shown, the membrane tube (commercially purchased from Beijing Zhongtianyuan Environmental Engineering Co., Ltd. has 19 channels evenly distributed on the tube, the inner diameter of each channel is 3.3mm, the average pore diameter of the holes on the substrate is 100 μm, and the porous membrane The average pore diameter of the pores is 30nm) such as figure 2 As shown, the film tube is used in conjunction with the shell, and the filling rate of the film tube in the shell is 40%. The space formed by the outer wall of the membrane tube and the inner wall of the casing serves as the first channel, and the channel on the membrane tube serves as the second channel.

[0114] Among them, the slurry mixing dev...

Embodiment 2

[0128] This embodiment is used to illustrate the preparation method of hydrogen peroxide of the present invention.

[0129] According to the method of embodiment 1, the difference is that "the average aperture of the pores on the porous membrane is 1000nm, and the filling rate of the membrane tube in the housing is 35%" instead of "the average aperture of the pores on the porous membrane is 30nm, The filling rate of the film tube in the shell is 40%"; use "r 1 / r 2 =0.85, r 1 / r 3 = 1" instead of "r 1 / r 2 = 0.9, r 1 / r 3 =0.9"; replace "the hydrogenation catalyst particle diameter is 10 μm" with "the hydrogenation catalyst particle diameter is 100 μm".

[0130] The experimental results are shown in Table 1.

Embodiment 3

[0132] This embodiment is used to illustrate the preparation method of hydrogen peroxide of the present invention.

[0133] According to the method of Example 1, the difference is that "the raw material is 2-ethylanthraquinone, the solvent is a mixed solution of m-trimethylbenzene and trioctyl phosphate with a volume ratio of 4:1, and the raw material concentration is 14% by weight" Substitute "The raw material is tetrahydro-2-ethylanthraquinone, the solvent is a mixed solution of o-trimethylbenzene, trioctyl phosphate and methylcyclohexyl acetate with a volume ratio of 3:1:1, and the raw material concentration is 16% by weight ";

[0134] With "membrane tube (commercially purchased from Beijing Zhongtianyuan Environmental Engineering Co., Ltd.; there are 19 channels evenly distributed on the pipeline, the inner diameter of each channel is 3.3mm, and the average pore diameter of the holes on the tube wall is 500nm), the membrane tube is in The filling rate in the shell is 45%...

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Abstract

The invention discloses a hydrogenation method for hydrogen peroxide preparation through an anthraquinone process and a method for producing hydrogen peroxide. The hydrogenation method includes the steps: (1) injecting a working fluid into a slurry containing a hydrogenation catalyst through pores with the average pore size of nanometer size, and carrying out liquid-slurry mixing, to obtain a mixture containing a first slurry; (2) injecting hydrogen gas into the mixture containing the first slurry through the pores with the average pore size of nanometer size, and carrying out gas-slurry mixing, to obtain a mixture containing a second slurry; and (3) under a hydrogenation reaction condition, carrying out a hydrogenation reaction of the mixture containing the second slurry in a slurry-state bed reactor, and thus obtaining a mixture containing a third slurry. With use of the method, higher conversion rate and hydrogenation efficiency of raw materials can be obtained.

Description

technical field [0001] The invention relates to a hydrogenation method for preparing hydrogen peroxide by anthraquinone method and a method for producing hydrogen peroxide. Background technique [0002] As an important chemical, hydrogen peroxide is widely used in various fields of national production and life. At present, the anthraquinone process is the mainstream process for the production of hydrogen peroxide in the world. In this process, alkyl anthraquinone is dissolved in suitable organic solvents such as heavy aromatic hydrocarbons, alcohols, and esters to prepare a working solution. Under this condition, the alkylanthraquinone in the working solution reacts with hydrogen to generate alkylhydroanthraquinone to obtain a hydrogenated liquid containing alkylhydroanthraquinone, and then oxidizes the alkylhydroanthraquinone by air to generate hydrogen peroxide and alkylhydroanthraquinone The oxidation solution, and then extract the hydrogen peroxide in the oxidation solu...

Claims

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Application Information

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IPC IPC(8): C01B15/023
Inventor 佘喜春向明林易娇汪永军敖博李庆华
Owner HUNAN CHANGLING PETROCHEM SCI & TECH DEV CO LTD
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