Invention Grant
US08163138B2 Method for processing effluent from chloromethylation of vinyl aromatic polymers
有权
处理乙烯基芳族聚合物氯甲基化流出物的方法
- Patent Title: Method for processing effluent from chloromethylation of vinyl aromatic polymers
- Patent Title (中): 处理乙烯基芳族聚合物氯甲基化流出物的方法
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Application No.: US11805475Application Date: 2007-05-23
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Publication No.: US08163138B2Publication Date: 2012-04-24
- Inventor: William I. Harris , Bruce S. Holden , Doreen C. Keptner , David C. McDonald
- Applicant: William I. Harris , Bruce S. Holden , Doreen C. Keptner , David C. McDonald
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Agent Edward W. Black
- Main IPC: B01D3/34
- IPC: B01D3/34 ; C08F8/24 ; C08F12/18
Abstract:
A method for processing effluent from a chloromethylation of a vinyl aromatic polymer wherein the effluent includes catalyst and volatile organics, and wherein the method includes the steps of: 1) deactivating at least a portion of the catalyst; 2) distilling the effluent; 3) adding caustic to the effluent; and 4) distilling the effluent.
Public/Granted literature
- US20080289949A1 Method for processing effluent from chloromethylation of vinyl aromatic polymers Public/Granted day:2008-11-27
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