Invention Grant
US4988738A Process for the preparation of bifunctional anion exchange resins, new
bifunctional anion exchange resins and use thereof
失效
双功能阴离子交换树脂的制备方法，新型双功能阴离子交换树脂及其用途
- Patent Title: Process for the preparation of bifunctional anion exchange resins, new bifunctional anion exchange resins and use thereof
- Patent Title (中): 双功能阴离子交换树脂的制备方法，新型双功能阴离子交换树脂及其用途
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Application No.: US373836Application Date: 1989-06-30
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Publication No.: US4988738APublication Date: 1991-01-29
- Inventor: Alfred Mitschker , Peter M. Lange , Harold Heller , Friedrich Werner , Hans-Karl Soest , Gunter Siegers
- Applicant: Alfred Mitschker , Peter M. Lange , Harold Heller , Friedrich Werner , Hans-Karl Soest , Gunter Siegers
- Applicant Address: DEX Leverkusen
- Assignee: Bayer Aktiengesellschaft
- Current Assignee: Bayer Aktiengesellschaft
- Current Assignee Address: DEX Leverkusen
- Priority: DEX3824266 19880716
- Main IPC: C08F8/00
- IPC: C08F8/00 ; B01J41/04 ; B01J41/14 ; C08F8/02
Abstract:
A process for the preparation of a bifunctional anion exchange resin by partial quaternization of a weakly basic anion exchanger containing tertiary amino groups which process comprises (a) partially loading the weakly basic anion exchanger with a strong acid and (b) quaternizing the partially loaded anion exchanger by means of a customary alkylating agent.
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