POISONING STUDIES ON CR/SILICA .2. CARBON-MONOXIDE

被引：47

作者：

MCDANIEL, MP

MARTIN, SJ

机构：

[1] Building 84G, Phillips Research Center, Bartlesville

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 08期

关键词：

D O I：

10.1021/j100161a059

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ethylene polymerization over Cr/silica catalysts is strongly inhibited by carbon monoxide, oxygen, methanol, triethylamine, and acetylene. Poisoning experiments done under high-activity slurry conditions are described. Differences between poisons are noted, and sometimes the initiation reactions are inhibited more strongly than the polymerization itself. Some discrimination between sites may be observed through selective reduction and poisoning. Results suggest that a significant fraction of the chromium could be active.

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页码：3289 / 3293

页数：5

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