| 摘要 |
Higher melt index 1-olefin polymers are produced by polymerizing the monomers in contact with a supported chromium oxide catalyst and an aromatic compound, e.g. benzene. The aromatic compound can be added as a separate stream to the reactor before, during or after charging the diluent to the reactor or the catalyst can be pretreated with the aromatic compound prior to charging the catalyst to the reactor.
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