发明名称 |
Method of maintaining heat transfer capacity in a polymerization reaction system |
摘要 |
This invention relates to a process for maintaining heat transfer capacity of a cycle cooler while polymerizing olefin(s) in the presence of catalyst and a carboxylate metal salt by controlling the amount of carboxylate metal salt present in the reaction system. In particular, the invention relates to maintaining a cycle cooler performance parameter substantially constant while polymerizing olefin(s) in the presence of a carboxylate metal salt and a conventional-type transition metal polymerization catalyst compound, or a metallocene-type polymerization catalyst compound. This invention further relates to a process wherein the cycle cooler performance parameter is a heat transfer capacity of the cycle cooler, a pressure drop across the cooler, or a cooler approach temperature of a cycle cooler.
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申请公布号 |
US7790816(B2) |
申请公布日期 |
2010.09.07 |
申请号 |
US20070879673 |
申请日期 |
2007.07.18 |
申请人 |
UNIVATION TECHNOLOGIES, LLC |
发明人 |
MARKEL ERIC J.;AGAPIOU AGAPIOS K. |
分类号 |
C08F2/00;B01J19/00;C08F2/34 |
主分类号 |
C08F2/00 |
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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