Oligomerization to alpha-olefins

US4689437A · kind A · utility

Assignee

• UNION CARBIDE CORPORATION · US

Inventor

• Rex E. Murray · Cross Lanes, US

Key dates

• Filing date: Jul 21, 1986
• Grant date: Aug 25, 1987
• Expiry date: Jul 21, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An olefin oligomerization/cooligomerization process with a catalyst comprising the reaction product of (1) a transition metal compound selected from the metals Ni, Co, Cr, Fe, Cu, (2) a catalyst activator capable of donating a hydride, alkyl, alkenyl or aryl group when the transition metal has the oxidation state of O or the transition metal compound does not have a hydride, alkyl, alkenyl or aryl group, and (3a) an organophosphorus sulfonate ligand containing one benzene ring with trivalent phosphorus P(III) group and SO.sub.3 M group at ortho-positions, or one benzene ring with CH.sub.2 --P(III) and CH.sub.2 --SO.sub.3 M groups at ortho-positions, or a bridging or fused aromatic ring system with P(III) or CH.sub.2 --P(III) group and SO.sub.3 M or CH.sub.2 --SO.sub.3 M group at adjacent positions on different rings, or any aromatic ring having the P(III) and SO.sub.3 M groups at adjacent positions, where M is H, Group IA or Group IIA metals, quarternary ammonium or phosphonium (NR.sub.4, PR.sub.4) radical, or (3b) a P(III) component connected through EQU --(A).sub.x --(CR.sup.2 R.sup.3).sub.y -- group to an SO.sub.3 M group, where A=0, NH, NR, and R.sup.2 and R.sup.3 are H or a su…