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US 2023/0053092 A1Published application
Ligands for Production of 1-Octene in Chromium Assisted Ethylene Oligomerization Process
AssigneeSabic Global Technologies B.V.
InventorsAbdulaziz Al-Nezari, Ilia Korobkov, Khalid Albahily
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Abstract
Catalyst compositions and processes for the oligomerization of ethylene to 1-octene are described. The catalyst composition includes a triamino bisphospino (NPNPN) ligand system with specific phosphorous and nitrogen ligands. The terminal nitrogen atoms include linear alkyl hydrocarbons that differ in the number of carbon atoms by 3.
Claims23
1-20. (canceled)
A catalyst composition for the oligomerization of ethylene to 1-octene, the catalyst composition comprising:
- a chromium (III) species;
- and
- a ligand having the formula of:
- wherein Ar1 and Ar2 are independently a substituted or unsubstituted C6—C11 aryl, n is 0 or 1, and m = n +3.
1 more element
The catalyst composition of 21, wherein the ligand has the structure of:
- wherein R
- 1 and R2 represent alkyl groups.
Dependencies are inferred from the claim text.