Preparation method of dibenzoyl peroxide
By using composite liquid alkali and surfactant in the preparation process of dibenzoyl peroxide, combined with the method of reaction at room temperature and recycling of wastewater, the problems of high side reaction rates, strong equipment corrosiveness and high wastewater treatment costs in the existing processes are solved, which significantly improves the yield and purity of the product and reduces the process cost.
CN119707766APending Publication Date: 2025-03-28JIUJIANG QIANFA FINE CHEM CO LTD
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Patent Information
- Application Number
- CN202411918226.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
The existing preparation methods for dibenzoyl peroxide have problems such as high side reaction rates, strong equipment corrosion and high wastewater treatment costs, and insufficient product yield and purity.
Method used
The synthetic mother liquor produced in the traditional benzoyl chloride strong alkali oxidation process is used as raw materials. By combining with the composite liquid alkali and surfactant, the reaction process is controlled to reduce the side reaction rate, and the resource utilization rate is improved by recycling wastewater.
Benefits of technology
The yield and purity of dibenzoyl peroxide were improved, with a yield of 98%, and a purity of more than 99.5%, while reducing process costs and achieving effective resource utilization of wastewater.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a preparation method of dibenzoyl peroxide, and belongs to the technical field of organic synthesis. According to the process, a reaction system is composed of a synthetic mother solution separated in a process for preparing dibenzoyl peroxide through a benzoyl chloride strong alkali oxidation method and compound caustic soda liquid, the compound caustic soda liquid is prepared from sodium hydroxide, sodium carbonate, ammonium bicarbonate and pyridine, then a surfactant is added into the obtained mixed solution, then hydrogen peroxide and benzoyl chloride are slowly dropwise added at the same time, and a reaction system is formed; and washing and filtering the product to obtain the high-purity dibenzoyl peroxide finished product. The process reaction is good in overall selectivity and can be stably carried out without low temperature, the yield of the final dibenzoyl peroxide product reaches 98%, the purity of the final dibenzoyl peroxide product exceeds 99.5%, and good market competitiveness is achieved.
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