Patent · US Active

Catalyst systems suitable for the tetramerization of ethylene and methods of using the same

US12364976B2 · kind B2 · utility

0Cited by

9References

20Claims

0Family size

Assignee

SAUDI ARABIAN OIL COMPANY · SA

Inventors

Sibo Lin · Cambridge, US
Dana Wong · Davis, US
Yagnaseni Ghosh · Lexington, US
Motaz Khawaji · Thuwal, SA
Wei Xu · Greenbelt, US
Mohamed Elanany · Jeddah, SA

Key dates

Filing date	Mar 6, 2023
Grant date	Jul 22, 2025
Priority date	—
Expiry date	Nov 13, 2043

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2531/18
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Catalyst systems suitable for tetramerizing ethylene to form 1-octene may include a catalyst including a chromium compound coordinated with a ligand and a co-catalyst including an organoaluminum compound. The ligand may have a chemical structure according to Formula (1), wherein R1 is a (C3-C20) substituted or unsubstituted hydrocarbyl group; R2, R3, R4, and R5 are independently chosen from (C1-C50) hydrocarbyl groups; and R1 and N are in a cis configuration.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.