Chromium oxide catalyst for ethylene polymerization
AssigneeSabic Global Technologies B.V.
InventorsOrass M. Hamed, Vugar O. Aliyev, Moosa Husain Al-Harthe
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Abstract
The invention relates to a solid catalyst system comprising a chromium compound, a metal compound, an aluminium compound and a silicon oxide support, wherein the silicon oxide support has an average particle diameter in the range between ≥20 and ≤50 μm, a pore volume in the range between ≥1.7 ml/g and ≤3 ml/g, and a surface area in the range between ≥400 m2/g and ≤800 m2/g, and wherein the aluminium alkoxide compound has the formula R1—Al—OR2 wherein R1 is selected from (C1-C8) alkyl groups and OR2 is selected from (C1-C8) alkoxyl groups.
Claims11
Solid catalyst system comprising a chromium compound, a metal compound, an aluminum compound and a silicon oxide support,
- wherein the silicon oxide support has an average particle diameter in the range between ≥20 and ≤50 μm, a pore volume in the range between ≥1.7 ml/g and ≤3 ml/g, and a surface area in the range between ≥400 m2/g and ≤800 m2/g
- and
- wherein the aluminum compound has the formula
- R1-Al—OR2
- wherein R1 is selected from (C1-C8) alkyl groups and OR2 is selected from (C1-C8) alkoxyl groups.
Dependencies are inferred from the claim text.