Invention Grant
- Patent Title: Process for the working-up of a vitamin E- and vitamin E-acetate-containing mixture or product stream
- Patent Title (中): 维生素E和维生素E醋酸盐混合物或产品流的处理过程
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Application No.: US13329853Application Date: 2011-12-19
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Publication No.: US08414850B2Publication Date: 2013-04-09
- Inventor: Werner Pietzonka , Peter Ruckstuhl , Angela Wildermann
- Applicant: Werner Pietzonka , Peter Ruckstuhl , Angela Wildermann
- Applicant Address: NL Heerlen
- Assignee: DSM IP Assets B.V.
- Current Assignee: DSM IP Assets B.V.
- Current Assignee Address: NL Heerlen
- Agency: Nixon & Vanderhye P.C.
- Priority: CH1366/04 20040819
- Main IPC: B01J8/00
- IPC: B01J8/00 ; B01D3/14 ; C07D311/00
Abstract:
A rectification column and system for the working-up of a vitamin E (VE)- and/or vitamin E acetate (VEA)-containing product stream includes purification of a vitamin E-containing product stream, acetylation of at least a part of the purified vitamin E and purification of at least a part of the acetylated vitamin E, the purification of vitamin E and vitamin E acetate preferably being effected by distillation, for example rectification.
Public/Granted literature
- US20120156107A1 PROCESS FOR THE WORKING-UP OF A VITAMIN E- AND VITAMIN E-ACETATE-CONTAINING MIXTURE OR PRODUCT STREAM Public/Granted day:2012-06-21
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