Macroporous cationic exchanging resin, preparing method and use in synthetic bisphenol A catalyst
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEM CORP
- Publication Date
- 2005-02-23
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
Technical field
[0001] The invention relates to a catalyst for synthesizing bisphenol A with an ion exchange resin method, in particular to a macroporous cation exchange resin, its preparation method and its use in synthesizing bisphenol A catalyst. Background technique
[0002] The synthesis of bisphenol A by ion exchange resin has simple process, less corrosion of equipment, and less three wastes. An advanced production process of bisphenol A, the raw material of high insulation grade epoxy resin.
[0003] Currently used ion exchange resin catalysts, the base resin is a gel or macroporous sulfonic acid type cation exchange resin with an exchange capacity of 2.0-5.5 mmol / g dry resin. Such as sulfonated styrene-divinylbenzene copolymer, sulfonated phenolic resin, etc., applicable brand names such as: Amberlite-118, -200, -IR, -XE307; Amberlyst-15; Dowex-50, -MSC -1; Purolite CT151, CT124, etc.
[0004] The above-mentioned basic resin is modified into a catalyst for the sy...