一种乙烯氧氯化催化剂及其制备方法、乙烯氧氯化制备1,2-二氯乙烷的方法
By using a composite support consisting of γ-Al2O3 and Y-type molecular sieves to form an ethylene oxychlorination catalyst, and loading copper and auxiliary elements, the problem of pressurization required by existing catalysts was solved. This achieved efficient hydrogen chloride conversion and selectivity for 1,2-dichloroethane under normal pressure, reducing equipment requirements and byproduct generation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- QINGDAO UNIV OF SCI & TECH
- Filing Date
- 2025-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ethylene oxychlorination catalysts require pressurized conditions to achieve high conversion rates of hydrogen chloride and high selectivity for 1,2-dichloroethane, which presents high equipment requirements and safety risks. Furthermore, traditional catalysts are prone to generating byproducts.
A composite support consisting of γ-Al2O3 and Y-type molecular sieves was used to load copper and auxiliary elements to form an ethylene oxychlorination catalyst. By improving the catalyst structure and materials, high conversion of hydrogen chloride and high selectivity of 1,2-dichloroethane were achieved under normal pressure.
Achieving a hydrogen chloride conversion rate of over 99% and a 1,2-dichloroethane selectivity of over 98% under normal pressure reduces equipment requirements and safety risks, and minimizes byproduct generation.
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Figure CN120421025B_ABST