发明名称 |
Method for polymerization of olefin |
摘要 |
The present invention is directed to a method for polymerizing olefins in a multi-stage polymerization apparatus including a gas-phase polymerization reactor in a subsequent stage. By use of the present method, the composition of gas in the gas-phase reactor is easily adjusted, and moreover, a polymer having an intended composition is produced in a consistent manner. In one aspect, the method for polymerizing olefins is performed in successive, multiple stages by use of a plurality of polymerization reactors disposed in series which include at least one gas-phase polymerization reactor after a first reactor, wherein a multi-component gas is removed from a gas-phase reactor and pressurized and/or cooled to thereby liquefy a portion of the gas; at least a portion of gas is discharged; and the remaining gas and the liquid are returned to the gas-phase reactor.
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申请公布号 |
US6271318(B1) |
申请公布日期 |
2001.08.07 |
申请号 |
US19990353835 |
申请日期 |
1999.07.15 |
申请人 |
IDEMITSU PETROCHEMICAL CO., LTD. |
发明人 |
SATOU HIDEKI;MATSUO YOUICHI;MATSUHIRO ITARU |
分类号 |
B01J8/24;C08F2/00;C08F2/01;C08F2/34;C08F10/00;C08F110/02;C08F110/06;C08F210/06;(IPC1-7):C08F2/00 |
主分类号 |
B01J8/24 |
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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