Patent ID: 11878952
Assignee: CHEVRON PHILLIPS CHEMICAL COMPANY LP
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. An oligomerization process comprising:
A) introducing ethylene, a transition metal-based catalyst system or catalyst system components, an organic reaction medium, and optionally hydrogen, into an oligomerization reactor, the transition metal-based catalyst system or catalyst system components containing a co-catalyst comprising an aluminoxane and optionally an alkylaluminum;
B) forming an oligomer product in the oligomerization reactor, the oligomer product comprising hexenes and octenes;
C) discharging an effluent stream from the oligomerization reactor, the effluent stream comprising unreacted ethylene, the oligomer product, a residual transition metal-based catalyst system containing the co-catalyst comprising the aluminoxane and optionally the alkylaluminum, and the organic reaction medium; and
D) contacting the effluent stream with a C4-C18 alcohol co-catalyst deactivating agent at a molar amount of OH of the co-catalyst deactivating agent in a range from 0.5 to 1.5 times {(moles of aluminum of the aluminoxane)+(moles aluminum of the alkylaluminum)+(moles aluminum of the alkylaluminum)}.