Invention Grant
US09272979B2 Process for separating vinyl esters from a gas stream comprising ethylene and vinyl esters
有权
从包含乙烯和乙烯基酯的气流中分离乙烯基酯的方法
- Patent Title: Process for separating vinyl esters from a gas stream comprising ethylene and vinyl esters
- Patent Title (中): 从包含乙烯和乙烯基酯的气流中分离乙烯基酯的方法
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Application No.: US14654100Application Date: 2013-12-16
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Publication No.: US09272979B2Publication Date: 2016-03-01
- Inventor: Erich Neumann , Christoph Wolf , Dieter Littmann
- Applicant: Basell Polyolefine GmbH
- Applicant Address: DE Wesseling
- Assignee: Basell Polyolefine GmbH
- Current Assignee: Basell Polyolefine GmbH
- Current Assignee Address: DE Wesseling
- Priority: EP12198347 20121220
- International Application: PCT/EP2013/076680 WO 20131216
- International Announcement: WO2014/095707 WO 20140626
- Main IPC: C08F2/00
- IPC: C08F2/00 ; C08F4/00 ; C08F118/02 ; C07C67/48 ; C07C67/52 ; C08F210/02
Abstract:
A process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol being at a pressure in the range of from 0.5 MPa to 10 MPa and a temperature in the range of from 5° C. to 50° C.; and a process for copolymerizing ethylene and esters of vinyl alcohol in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus comprising such a process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol.
Public/Granted literature
- US20150315119A1 PROCESS FOR SEPARATING VINYL ESTERS FROM A GAS STREAM COMPRISING ETHYLENE AND VINYL ESTERS Public/Granted day:2015-11-05
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