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Hydrogen peroxide concentration and purification device and application thereof to hydrogen peroxide concentration and purification

A hydrogen peroxide, concentration technology, applied in the directions of peroxide/peroxyhydrate/peroxyacid/superoxide/ozone, inorganic chemistry, vapor condensation, etc. problems, to achieve the effect of improving product purity, increasing yield and reducing investment

Active Publication Date: 2018-12-18
HUNAN BAILI ENGINEERING SCIENCE AND TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the adsorbent needs to be replaced at a certain time during operation, resulting in hazardous solid waste; more importantly, due to the potential safety hazards during the treatment in the adsorption tower

Method used

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  • Hydrogen peroxide concentration and purification device and application thereof to hydrogen peroxide concentration and purification
  • Hydrogen peroxide concentration and purification device and application thereof to hydrogen peroxide concentration and purification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] attached figure 1 The shown hydrogen peroxide concentration and purification device is mainly composed of a purification tower 1, a coalescer 4, a preheater 5, a falling film evaporator 2, a rectification tower 3, a steam jet pump 6, a centrifugal pump 7, a circulating cooler 13, a refining Distillation tower top condenser 10, vacuum pump 11 and high-purity hydrogen peroxide cooler 8 are composed.

[0034] The concentration of crude hydrogen peroxide sent from the extraction process is 25-45%, and the TOC is 200-800ppm. It enters the purification tower at the upper part of the tower, and the aromatics enter the purification tower from the lower part of the tower. The theoretical plate number of the purification tower is 13. The aromatics The weight ratio with crude hydrogen peroxide is 0.01-0.10. The temperature of the purification tower is 15-45°C, and the operating pressure is normal pressure.

[0035] After passing through the purification tower, the TOC of hydroge...

Embodiment 2

[0039] The concentration of crude hydrogen peroxide sent from the extraction process is 25%, and the TOC is 200-800ppm. It enters the purification tower at the upper part of the tower, and the aromatics enter the purification tower from the lower part of the tower. The theoretical plate number of the purification tower is 15. The weight ratio of hydrogen peroxide is 0.03-0.05. The temperature of the purification tower is 20-40°C, and the operating pressure is normal pressure.

[0040] After passing through the purification tower, the TOC of hydrogen peroxide from the lower part of the purification tower is 100-350ppm. After entering the coalescer to separate the organic matter, it is sent to the preheater to preheat to 33-38°C, and then sent to the falling film evaporator for heating. The heating temperature is 75-80°C, using medium-pressure steam to drive the evaporation jet pump steam as the heat source; the concentration of the lower part of the falling film evaporator is 18-...

Embodiment 3

[0044] The concentration of crude hydrogen peroxide sent from the extraction process is 45%, and the TOC is 200-800ppm. It enters the purification tower at the upper part of the tower, and the aromatics enter the purification tower from the lower part of the tower. The theoretical plate number of the purification tower is 8. The weight ratio of hydrogen peroxide is 0.03-0.05. The temperature of the purification tower is 15-40°C, and the operating pressure is normal pressure.

[0045] After passing through the purification tower, the TOC of hydrogen peroxide from the lower part of the purification tower is 100-350ppm. After entering the coalescer to separate the organic matter, it is sent to the preheater to preheat to 33-38°C, and then sent to the falling film evaporator for heating. The heating temperature is 75-80°C, using medium-pressure steam to drive the evaporation jet pump steam as the heat source; the concentration of the lower part of the falling film evaporator is 18...

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Abstract

The invention discloses a hydrogen peroxide concentration and purification device and application thereof to hydrogen peroxide concentration and purification. The hydrogen peroxide concentration and purification device is mainly composed of a purification tower (1), a falling film evaporator (2) and a rectifying tower (3); a thick diluted hydrogen peroxide pipeline is connected with the upper partof the purification tower and an aromatic hydrocarbon pipeline is connected with the lower part of the purification tower; a bottom hydrogen peroxide outlet of the purification tower is connected with a hydrogen peroxide inlet of the falling film evaporator; a lower hydrogen peroxide outlet of the falling film evaporator is connected with the lower part of the rectifying tower; a bottom hydrogenperoxide outlet of the falling film evaporator is connected with the upper part of the purification tower; a top gas phase outlet of the rectifying tower is connected with a rectifying tower condenser(10); a top gas phase outlet of the rectifying tower condenser is connected with a vacuum pump (11); a hydrogen peroxide outlet of the rectifying tower is connected with a high-purity-grade hydrogenperoxide cooler (8). According to the hydrogen peroxide concentration and purification device, an adsorption tower is not used, and part of concentrated hydrogen peroxide is returned back into the purification tower. Therefore, waste liquid and waste adsorbents, generated in an adsorption process, are reduced; meanwhile, effective components of a working solution are also recycled, the consumptionis reduced and the safety performance of the device is improved.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and relates to a hydrogen peroxide concentration and purification device and its application in industrial production, especially the application in the concentration and purification of hydrogen peroxide. Background technique [0002] Hydrogen peroxide is an important inorganic chemical raw material, which is widely used in papermaking, textile, chemical synthesis, military industry, electronics, food processing, medicine, cosmetics, environmental protection, metallurgy and many other fields. Hydrogen peroxide decomposes to produce water and oxygen, which has no secondary pollution to the environment and is a green chemical. At present, the anthraquinone method is widely used in the production of hydrogen peroxide at home and abroad. The anthraquinone method to produce hydrogen peroxide uses anthraquinone derivatives as the working carrier. Under the action of a catalyst, the anthraqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/013B01D11/04B01D1/22B01D3/14B01D5/00
CPCB01D1/22B01D3/14B01D5/0045B01D5/006B01D11/04C01B15/013Y02P20/10
Inventor 刘国强陈鹏飞廖菊元徐红彩
Owner HUNAN BAILI ENGINEERING SCIENCE AND TECHNOLOGY CO LTD
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