| 发明名称 |
GAS PHASE POLYMERISATION OF ETHYLENE |
| 摘要 |
The invention relates to a process for the production of polyethylene by gas phase polymerisation of ethylene in the presence of a supported chromium oxide based catalyst which is modified with an amino alcohol wherein the molar ratio of amino alcohol:chromium ranges between 0.5:1 and 1:1, wherein the support is silica having a surface area (SA) between 250 m2/g and 400 m2/g and a pore volume (PV) between 1.1 cm3/g and less than 2.0 cm3/g and wherein the amount of chromium in the supported catalyst is at least 0.1% by weight and less than 0.5% by weight. |
| 申请公布号 |
US2015119538(A1) |
申请公布日期 |
2015.04.30 |
| 申请号 |
US201314403380 |
申请日期 |
2013.06.11 |
| 申请人 |
Saudi Basic Industries Corporation |
发明人 |
Aliyev Vugar O.;Cevallos-Candau Jose Fernando |
| 分类号 |
C08F2/34;C08F110/02 |
主分类号 |
C08F2/34 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process for the production of polyethylene comprising
gas phase polymerisation of ethylene in the presence of a supported chromium oxide based catalyst composition which is modified with an amino alcohol, wherein the molar ratio of amino alcohol:chromium ranges between 0.5:1 and 1:1, wherein the support is silica having a surface area (SA) between 250 m2/g and 400 m2/g and a pore volume (PV) between 1.1 cm3/g and less than 2.0 cm3/g and wherein the amount of chromium in the supported catalyst is at least 0.1% by weight and less than 0.5% by weight. |
| 地址 |
RIYADH SA |
