A catalyst for preparing dichlorobenzene, a preparation method and application thereof
By using diatomaceous earth-based CuS and Fe2S3 catalysts in the production of dichlorobenzene, the problems of low yield and high energy consumption in the existing technology have been solved, and high-yield and low-energy-consumption dichlorobenzene preparation has been achieved.
CN117943062BActive Publication Date: 2026-05-29CHINA PETROLEUM & CHEMICAL CORP +2
Patent Information
- Application Number
- CN202211286204.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-20
- Publication Date
- 2026-05-29
- Estimated Expiration
- 2042-10-20
Abstract
The present application relates to a kind of catalyst for preparing dichlorobenzene and its preparation method and application, diatomite is used as matrix, CuS phase and Fe2S3 phase are covered on the surface of matrix successively from inside to outside, and the catalyst is used for preparing dichlorobenzene by benzene chlorination.The present application is used for the method for preparing dichlorobenzene by continuous method, the yield of dichlorobenzene is more than 91%, the yield of m-dichlorobenzene is less than 1%, the yield of polychlorobenzene is less than 1%, reach the effect of energy saving, improve conversion rate.
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Citation Information
Patent Citations
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