	US 11,786,889 B2
	Antifouling oligomerization catalyst systems
Sohel Shaikh, Dhahran (SA); Motaz Khawaji, Thuwal Jeddah (SA); Hussain Al Yami, Thuwal Jeddah (SA); and Wei Xu, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA); and Sumitomo Chemical Company, Limited, Chiba (JP)
Filed by Saudi Arabian Oil Company, Dhahran (SA); and Sumitomo Chemical Company, Limited, Chiba (JP)
Filed on Jun. 14, 2016, as Appl. No. 15/181,923.
Claims priority of provisional application 62/181,955, filed on Jun. 19, 2015.
Prior Publication US 2016/0367977 A1, Dec. 22, 2016
Int. Cl. B01J 31/06 (2006.01); B01J 31/02 (2006.01); B01J 31/04 (2006.01); C07C 2/88 (2006.01)

CPC B01J 31/06 (2013.01) [B01J 31/0225 (2013.01); B01J 31/0244 (2013.01); B01J 31/0268 (2013.01); B01J 31/04 (2013.01); C07C 2/88 (2013.01); B01J 2231/20 (2013.01); C07C 2531/025 (2013.01); C07C 2531/04 (2013.01); C07C 2531/06 (2013.01); C07C 2531/12 (2013.01); C07C 2531/14 (2013.01); C07C 2531/38 (2013.01)]

9 Claims

1. A catalyst that reduces polymeric fouling, the catalyst comprising: at least one titanate compound; at least one aluminum compound; and an antifouling agent chosen from one or more of a phosphonium or phosphonium salt; a sulfonate or a sulfonate salt; a sulfonium or sulfonium salt; an ester comprising a cyclic moiety; an anhydride; a polyether; and a long-chained amine-capped compound, where the alkyl titanate has the structure Ti(OR)₄, where R is a branched or straight chain alkyl radical comprising from 2 to 8 carbon atoms.