US 11,925,927 B2
Ligands for production of 1-octene in chromium assisted ethylene oligomerization process
Abdulaziz Al-Nezari, Thuwal (SA); Ilia Korobkov, Thuwal (SA); and Khalid Albahily, Thuwal (SA)
Assigned to SABIC Global Technologies B.V., Bergen op Zoom (NL)
Filed by SABIC Global Technologies B.V., Bergen op Zoom (NL)
Filed on Nov. 3, 2022, as Appl. No. 17/980,253.
Application 17/980,253 is a continuation of application No. 17/291,693, granted, now 11,511,265, previously published as PCT/IB2019/059668, filed on Nov. 11, 2019.
Claims priority of provisional application 62/758,783, filed on Nov. 12, 2018.
Prior Publication US 2023/0053092 A1, Feb. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B01J 31/18 (2006.01); B01J 31/14 (2006.01)
CPC B01J 31/189 (2013.01) [B01J 31/143 (2013.01); B01J 2231/20 (2013.01); B01J 2531/62 (2013.01)] 22 Claims
 
1. 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:

OG Complex Work Unit Chemistry
wherein Ar1 and Ar2 are independently a substituted or unsubstituted C6-C11 aryl, n is 0 or 1, and m=n+3.