Hydrogen peroxide working solution purification separation process without running through white clay

CN121672424BActive Publication Date: 2026-04-28ZIBO WENSHIKE ALUMINUM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZIBO WENSHIKE ALUMINUM CO LTD
Filing Date
2026-02-10
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In the existing anthraquinone process for hydrogen peroxide production, the purification and separation of the working fluid relies on activated clay, which has poor purification effect and is highly consumable, affecting production continuity and efficiency.

Method used

A Co3O4-Pt dual-component active catalyst is used for catalytic conversion, combined with modified activated carbon, chelating resin and mesoporous silica for targeted adsorption, replacing bleaching clay for purification and separation. A three-stage series adsorption tower accurately removes anthraquinone degradation products and metal ions.

Benefits of technology

It improved the purification and separation effect of the working fluid, enabled the long-term safe and stable operation of the device, and enhanced the reactivity of the working fluid.

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Abstract

The application belongs to the technical field of chemical production, and particularly relates to a purification and separation process for hydrogen peroxide working solution without running of white clay. The purification and separation process for hydrogen peroxide working solution without running of white clay provided by the application comprises steps of filtration, catalytic conversion, targeted adsorption and filtration. The purification and separation process provided by the application adopts a Co3O4-Pt dual-component active catalyst to catalytically convert the working solution, decompose trace peroxides and anthraquinone macromolecular degradation products in the working solution, and improve the purification and separation effect; a three-stage series adsorption tower is adopted for targeted adsorption, so as to accurately remove the anthraquinone degradation products and metal ions in the working solution, improve the reaction activity of the working solution, and realize long-period safe and stable operation of the device.
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Citation Information

Patent Citations

  • Regeneration method and regeneration device of working solution for producing hydrogen peroxide by anthraquinone method

    CN111620309A

  • Method and device for filtering and separating catalyst in reaction system for preparing hydrogen peroxide

    CN102921478A

  • Manufacturing method and manufacturing system for hydrogen peroxide using anthraquinone process

    CN108455538A