Novel hydrogen peroxide purification method

A technology of hydrogen peroxide and a new method, applied in chemical instruments and methods, peroxide/peroxyhydrate/peroxyacid/superoxide/ozonide, inorganic chemistry, etc., can solve the problem of high production and processing costs, high efficiency and Use low efficiency and other issues to achieve the effect of reducing production costs and improving production safety

Pending Publication Date: 2020-06-09
SUNRESIN NEW METERIALS CO LTD XIAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of low resin rate and utilization efficiency and high production and treatment costs in the hydrogen peroxide purification process in the prior art, the present invention provides a new method for hydrogen peroxide purification, which uses a multi-way switching valve continuous adsorption system and hydrogen peroxide purification resin Combined, innovatively proposed a new method of continuous hydrogen peroxide purification, and achieved good results

Method used

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Effect test

Embodiment 1

[0040] The hydrogen peroxide raw material, the replacement liquid A-water, the desorption liquid-90% (w / w) methanol solution, the replacement liquid B-water, and the finished hydrogen peroxide are respectively passed through the multi-way switching valve system 1 (the valve port diameter is 1.5 inches, and the rotation switching time is 3h) The hydrogen peroxide raw material tank feed pipe 9, the replacement liquid A feed pipe 3, the desorption liquid top replacement liquid A feed pipe 4, the desorption liquid feed pipe 5, the substitution liquid B feed pipe 6, the finished hydrogen peroxide replacement The feed pipe 14 enters into the corresponding resin column 8 through the inner hole and channel of the multi-way switching valve system respectively (filled with LX-5BX macroporous adsorption resin, produced by Xi'an Lanxiao Technology New Material Co., Ltd.), from the hydrogen peroxide finished product. Discharge pipe 2, displacement liquid A discharge pipe 10, desorption liqu...

Embodiment 2

[0050] The hydrogen peroxide raw material, the replacement fluid A-60% (w / w) ethanol solution, the desorption solution-50% (w / w) methanol solution, the replacement fluid B-water, and the finished hydrogen peroxide, respectively pass through the The diameter of the mouth is 1 inch, and the rotation switching time is 0.01h.) The hydrogen peroxide raw material tank feed pipe 9, the substitution liquid A feed pipe 3, the desorption liquid top substitution liquid A feed pipe 4, the desorption liquid feed pipe 5, the substitution liquid B feed pipe 6, the finished product hydrogen peroxide replaces the feed pipe 14, and enters the corresponding resin column 8 through the inner hole and channel of the multi-port valve system respectively (filled with LX-5BG macroporous adsorption resin, Xi'an Lanxiao Technology New Materials Co., Ltd. Co., Ltd.), from the hydrogen peroxide product discharge pipe 2, the replacement liquid A discharge pipe 10, the desorption liquid top replacement liqui...

Embodiment 3

[0060] The hydrogen peroxide raw material, the replacement solution A-5% (w / w) methanol solution, the desorption solution-5% (w / w) ethanol solution, the replacement solution B-hydrochloric acid, and the finished hydrogen peroxide, respectively pass through the multi-way switching valve system 1 (valve The diameter of the mouth is 1.5 inches, and the rotation switching time is 1h.) The hydrogen peroxide raw material tank feed pipe 9, the substitution liquid A feed pipe 3, the desorption liquid top substitution liquid A feed pipe 4, the desorption liquid feed pipe 5, the substitution liquid B Feed pipe 6, finished product hydrogen peroxide replace feed pipe 14, after entering into corresponding resin column 8 respectively through multi-port switching valve system inner pore channel and passage (filling macroporous adsorption resin LX-5BX, LX-5BG, resin volume ratio 1:1, produced by Xi'an Lanxiao Technology New Materials Co., Ltd.), from the hydrogen peroxide finished product disc...

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Abstract

The invention provides a novel hydrogen peroxide purification method. The method comprises the following steps: respectively passing a hydrogen peroxide raw material, a replacement liquid A, a desorption liquid, a replacement liquid B and a hydrogen peroxide finished product through a hydrogen peroxide raw material tank feeding pipe, a replacement liquid A feeding pipe, a desorption liquid top replacement liquid feeding pipe, a desorption liquid feeding pipe, a replacement liquid B feeding pipe and a finished hydrogen peroxide replacement feeding pipe; after respectively entering the corresponding resin columns, discharging from a hydrogen peroxide finished product discharging pipe, a replacement liquid A discharging pipe, a desorption liquid top replacement liquid discharging pipe, a desorption liquid discharging pipe, a replacement liquid B discharging pipe and a finished product hydrogen peroxide replacement discharging pipe to finish the whole technological process. According to the method, a multi-way conversion valve system is adopted, and the production cost can be reduced by 30-50%.

Description

technical field [0001] The invention relates to the technical field of hydrogen peroxide production, in particular to a new method for purifying hydrogen peroxide, and belongs to the field of chemical industry. Background technique [0002] Caprolactam is an important raw material for chemical fibers and engineering plastics. The products are closely related to the development of the national economy and people's lives. With the rapid development of the national economy and the gradual improvement of people's living standards, the demand for caprolactam products is increasing. Hydrogen peroxide is used as oxidant in the production of caprolactam, while hydrogen peroxide is mostly produced by anthraquinone method. Due to the technical method and process of this method, in addition to a certain amount of inorganic impurities and mechanical impurities, the produced hydrogen peroxide also contains 10-500 mg / L of organic impurities. These organic impurities include anthraquinone ...

Claims

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Application Information

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IPC IPC(8): C01B15/013
CPCC01B15/013
Inventor 王刚郭福民刘琼李岁党寇晓康
Owner SUNRESIN NEW METERIALS CO LTD XIAN
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