发明名称 |
Processo de polimerização |
摘要 |
A slurry polymerization process removes a portion of the fluid slurry without using a settling leg or a continuous take-off. The process uses a reactor take-off valve that is periodically fully closed and fully opened such that the withdrawn slurry is removed from the reactor in a discontinuous manner. The regular, periodic full closing and full opening of the take-off valve reduces instances of polymer plugging the take-off valve. In another aspect of the invention, a take-off valve is throttled in a repetitive pattern to reduce plugging of the take-off valve. |
申请公布号 |
BR0314281(B1) |
申请公布日期 |
2014.03.11 |
申请号 |
BR20030314281 |
申请日期 |
2003.09.12 |
申请人 |
CHEVRON PHILLIPS CHEMICAL COMPANY LP |
发明人 |
JOHN D. HOTTOVY;DALE A. ZELLERS;RANDY L. HAGENSON |
分类号 |
C08F2/14;C08F2/00;C08F10/02;C08F110/02 |
主分类号 |
C08F2/14 |
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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