发明名称 |
VERFAHREN ZUR AKTIVIERUNG VON CHROMKATALYSATOREN |
摘要 |
New methods for activating chromium catalysts for polymerization processes decrease the amount of time required for activation and increase catalyst activity. Rapid heating to a first temperature is followed by a first hold period before heating to a higher second temperature and maintaining the second temperature for a second hold period. In one aspect, the overall activation process takes less than 10 hours. |
申请公布号 |
AT526084(T) |
申请公布日期 |
2011.10.15 |
申请号 |
AT20050754932T |
申请日期 |
2005.05.06 |
申请人 |
CHEVRON PHILLIPS CHEMICAL COMPANY LP |
发明人 |
MCDANIEL, MAX;BENHAM, ELIZABETH |
分类号 |
B01J38/02;B01J20/34;B01J23/26;B01J37/08;B01J38/04;C08F4/24;C08F10/00;C08F10/02;C08F110/02 |
主分类号 |
B01J38/02 |
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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