Invention Grant
- Patent Title: Regeneration of acidic ion exchangers
- Patent Title (中): 酸性离子交换剂的再生
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Application No.: US12784870Application Date: 2010-05-21
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Publication No.: US08410184B2Publication Date: 2013-04-02
- Inventor: Michael Prein , Christian Münnich , Ulrich Blaschke
- Applicant: Michael Prein , Christian Münnich , Ulrich Blaschke
- Applicant Address: DE
- Assignee: Bayer MaterialScience AG
- Current Assignee: Bayer MaterialScience AG
- Current Assignee Address: DE
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Priority: DE102009023551 20090530
- Main IPC: B01J38/60
- IPC: B01J38/60 ; B01J38/62
Abstract:
The invention relates to a method for regenerating acidic cation exchangers, which are used as catalysts in the reaction of phenols with aldehydes or ketones to give bisphenols, in particular to give bisphenol A, with acids, with the proviso that, in the method according to the invention, these cation exchangers experience very little mechanical damage due to swelling processes during the regeneration process.
Public/Granted literature
- US20100305365A1 REGENERATION OF ACIDIC ION EXCHANGERS Public/Granted day:2010-12-02
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