Invention Grant
- Patent Title: Separating cyclic siloxanes from short-chain siloxanes having terminal hydroxyl groups
- Patent Title (中): 从具有末端羟基的短链硅氧烷分离环状硅氧烷
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Application No.: US14233070Application Date: 2012-07-11
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Publication No.: US08927752B2Publication Date: 2015-01-06
- Inventor: Alfred Popp , Christine Kaes , Klaus Kaeppler , Ulrike Buettner
- Applicant: Alfred Popp , Christine Kaes , Klaus Kaeppler , Ulrike Buettner
- Applicant Address: DE Munich
- Assignee: Wacker Chemie AG
- Current Assignee: Wacker Chemie AG
- Current Assignee Address: DE Munich
- Agency: Brooks Kushman P.C.
- Priority: DE102011079751 20110725
- International Application: PCT/EP2012/063573 WO 20120711
- International Announcement: WO2013/013980 WO 20130131
- Main IPC: C07F7/20
- IPC: C07F7/20 ; C07F7/21 ; C08G77/16 ; C08G77/34
Abstract:
Cyclic siloxanes are separated from short chain hydroxyl-terminated siloxanes by contact with steam at at least 650 hPa absolute. The cyclic siloxanes and other components which are separated by use of steam can be recovered by phase separation, and preferably used in other processes.
Public/Granted literature
- US20140155644A1 SEPARATING CYCLIC SILOXANES FROM SHORT-CHAIN SILOXANES HAVING TERMINAL HYDROXYL GROUPS Public/Granted day:2014-06-05
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