Device and technology employed to hydrogen peroxide purification

Abstract

The invention discloses a device and a technology employed to hydrogen peroxide purification and relates to the removing of organisms specifically anthraquinone compounds in hydrogen peroxide industrial production. According to the method and the device, the organisms in the hydrogen peroxide are removed deeply by using the method of phase separator and film separation combined technology; the phase separator is the patented product of the company, which is developed by using the principle that the microfiber can coagulate micro liquid drops and thus the phase separator can separate the organisms in the hydrogen peroxide to the solubility limit; then the hydrogen peroxide solution containing saturated organisms enters the film system, wherein the film has the characteristics of selectively transmitting particles and therefore can effectively prevent organism particles from penetrating through and allow the hydrogen peroxide to penetrate through; after the film separation, the content of the organisms in the hydrogen peroxide of a clear solution side can be reduced to about several parts per million (ppm); and the concentrated hydrogen peroxide returns back to the phase separator to separate. With the adoption of the device and the technology, the content of organic carbon in the hydrogen peroxide can be effectively reduced with relatively low investment, and thus the requirement of the sequent processes is satisfied and the national energy conservation policy is met.

Description

technical field [0001] The present invention relates to a device and process, in particular to a device and process for purifying hydrogen peroxide, which can improve the precision of hydrogen peroxide, provide high-quality raw materials for downstream production, improve the quality of downstream products, have low energy consumption and high degree of automation. Background technique [0002] Caprolactam is an important production of nylon 6 engineering plastics and nylon 6 fibers. The production of caprolactam is mainly produced by the ketone-oxime process route. In the traditional oximation and Beckmann rearrangement reactions, cyclohexanone, ammonia, and hydrogen peroxide are placed in the same reactor to synthesize cyclohexanone oxime in one step. The organic carbon concentration of hydrogen peroxide in the reaction needs to be as low as 50ppm or less. [0003] High-purity hydrogen peroxide is a deep-processing product of industrial hydrogen peroxide. The electronics ...

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Problems solved by technology

However, in practical applications, the ion exchange resin needs to consume a lot of energy when it is regenerated, and because of the occurrence of colloidal solids, it leads to problems such as clogging of the resin

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