公开(公告)号：US08324330B2

公开(公告)日：2012-12-04

申请号：US12224760

申请日：2007-03-29

申请人： Syriac Palackal ,  Srikant Hazra ,  Orass Hamed ,  Mohammed Al-Anazi

发明人： Syriac Palackal ,  Srikant Hazra ,  Orass Hamed ,  Mohammed Al-Anazi

IPC分类号： C08F4/06 ,  B01J31/00 ,  B01J21/00

CPC分类号： C08F10/00 ,  C08F110/02 ,  C08F4/025 ,  C08F4/69 ,  C08F4/22 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/04

摘要： The invention is directed to a process for the preparation of a silylchromate catalyst comprising the steps of: 1. depositing silylchromate on a support at a deposition temperature of at least 55° C. during a deposition time of less than 6 hours, 2. reducing the supported silylchromate by addition of a reducing agent at a reduction temperature of at least 15° C. during a reduction time of less than 1.5 hours; and 3. drying of the reduced silylchromate at a temperature of at least 25° C. during a drying time of less than 8 hours. The invention also relates to a process for the production of an ethylene homopolymer or an ethylene copolymer in the presence of the silylchromate catalyst obtained with the process according to the invention.

摘要翻译： 本发明涉及一种制备甲硅烷基铬酸酯催化剂的方法，包括以下步骤：1.在沉积时间少于6小时的情况下，在至少55℃的沉积温度下在载体上沉积甲硅烷基铬酸盐，2.减少 在少于1.5小时的还原时间内，通过在至少15℃的还原温度下加入还原剂来负载的甲硅烷基铬酸盐; 和3.在少于8小时的干燥时间内，在至少25℃的温度下干燥还原的甲硅烷基铬酸盐。 本发明还涉及在通过根据本发明的方法获得的甲硅烷基铬酸盐催化剂存在下生产乙烯均聚物或乙烯共聚物的方法。

公开(公告)号：US20090306317A1

公开(公告)日：2009-12-10

申请号：US12224760

申请日：2007-03-29

申请人： Syriac Palackal ,  Srikant Hazra ,  Orass Hamed ,  Mohammed Al-Anazi

发明人： Syriac Palackal ,  Srikant Hazra ,  Orass Hamed ,  Mohammed Al-Anazi

IPC分类号： C08F4/42 ,  B01J21/06 ,  B01J31/04

CPC分类号： C08F10/00 ,  C08F110/02 ,  C08F4/025 ,  C08F4/69 ,  C08F4/22 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/04

摘要： The invention is directed to a process for the preparation of a silylchromate catalyst comprising the steps of: 1. depositing silylchromate on a support at a deposition temperature of at least 55° C. during a deposition time of less than 6 hours, 2. reducing the supported silylchromate by addition of a reducing agent at a reduction temperature of at least 15° C. during a reduction time of less than 1.5 hours; and 3. drying of the reduced silylchromate at a temperature of at least 25° C. during a drying time of less than 8 hours. The invention also relates to a process for the production of an ethylene homopolymer or an ethylene copolymer in the presence of the silylchromate catalyst obtained with the process according to the invention.

摘要翻译： 本发明涉及一种制备甲硅烷基铬酸酯催化剂的方法，包括以下步骤：1.在沉积时间少于6小时的情况下，在至少55℃的沉积温度下在载体上沉积甲硅烷基铬酸盐，2.减少 在少于1.5小时的还原时间内，通过在至少15℃的还原温度下加入还原剂来负载的甲硅烷基铬酸盐; 和3.在少于8小时的干燥时间内，在至少25℃的温度下干燥还原的甲硅烷基铬酸盐。 本发明还涉及在通过根据本发明的方法获得的甲硅烷基铬酸盐催化剂存在下生产乙烯均聚物或乙烯共聚物的方法。