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US 11,925,927 B2Granted
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.
Claims22
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
Dependencies are inferred from the claim text.