US 12,440,830 B2
Ligands for production of 1-octene in chromium assisted ethylene oligomerization process
Maher Al-Dajane, Thuwal (SA); 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)
Appl. No. 17/435,831
Filed by SABIC Global Technologies B.V., Bergen op Zoom (NL)
PCT Filed Mar. 16, 2020, PCT No. PCT/IB2020/052400
§ 371(c)(1), (2) Date Sep. 2, 2021,
PCT Pub. No. WO2020/188476, PCT Pub. Date Sep. 24, 2020.
Claims priority of provisional application 62/820,437, filed on Mar. 19, 2019.
Prior Publication US 2022/0152602 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01J 31/18 (2006.01); C07F 9/50 (2006.01)
CPC B01J 31/189 (2013.01) [C07F 9/5027 (2013.01); B01J 2231/20 (2013.01); B01J 2531/62 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A catalyst composition for the production of 1-hexene and 1-octene, the catalyst composition comprising a 1-hexene catalyst and a 1-octene catalyst, wherein the 1-hexene catalyst and the 1-octene catalyst comprise a nitrogen, phosphorous, nitrogen, phosphorous, nitrogen (NPNPN) ligand, and wherein the 1-hexene catalyst comprises a ligand having a structure of:

OG Complex Work Unit Chemistry
where R1 and R2 are the same or different and are selected from the group consisting of (i) C3 to C4 non-cyclic aliphatic groups, (ii) C5 to C10 aliphatic groups which may be cyclic or non-cyclic, linear or branched, substituted or unsubstituted, and (iii) any combination thereof, and wherein n is 0 or 1, and m=n+3.