发明名称 |
MANUFACTURE OF ETHYLENE COPOLYMERS |
摘要 |
<p>A continuous process for the manufacture of ethylene copolymers under high pressure and at high temperature in a polymerization zone, with transfer of the reaction mixture into a high pressure product isolation zone and from there into a low pressure product isolation zone, and recycling of the unconverted gas from the high-pressure product isolation zone into the polymerization zone and from the low pressure product isolation zone into a low temperature separator, from where the comonomer separated off is recycled to the polymerization process, whilst the ethylene is discharged as off-gas. The gas taken off the low pressure product isolation zone is preferably compressed to from 10 to 20 bar and cooled to from -10 to -30.degree.C before it is fed into the low temperature separator. There is a substantial improvement in the efficiency of separating off the comonomer.</p> |
申请公布号 |
CA1130045(A) |
申请公布日期 |
1982.08.17 |
申请号 |
CA19790319541 |
申请日期 |
1979.01.12 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
ZACHER, WIELAND;PFLEGER, KLAUS;BOETTCHER, KLAUS;SKORCZYK, RONALD;BUECHNER, OSKAR |
分类号 |
C08F10/00;C08F2/34;C08F210/02;(IPC1-7):08F2/00;08F10/02 |
主分类号 |
C08F10/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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