Ionic liquids for heterogenising metallocene catalysts

Details Ionic liquids for heterogenising metallocene catalysts Ionic liquids for heterogenising metallocene catalysts

2005-03-01

2009-10-06

Lu, Caixia (Department: 1796)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

C502S103000, C502S104000, C502S123000, C502S152000, C502S167000, C526S141000, C526S160000, C526S161000, C526S165000, C526S172000

Reexamination Certificate

active

07598200

ABSTRACT:
The present invention discloses a method for preparing an heterogeniseded catalyst component comprising the steps of: a) providing a halogenated precursor component of formula (I) —X—[—CH2]—CH3b) reacting the halogenated precursor with an ionic liquid precursor in a solvent to prepare an ionic liquid; IL+X−c) optionally, reacting the intermediate IL+X−with a salt C+A−, wherein C+is a cation that can be selected from K+, Na+, NH4+, and A−is an anion that can be selected from PF6−, SbF6−, BF4−, (CF3—SO2)2N−CIO4—, CF3SO3−, NO3— or CF3CO2−. d) using the ionic liquid prepared in step b) to heterogenise a metallocene component of formula (II) R″(CpRm)(Cp′Rn)MQ2wherein Cp and C′p are independently selected from substituted or unsubstituted cyclopentadienyl groups M is a metal selected from Group 4 of the Periodic Table, R″ is a structural bridge imparting stereorigidity between Cp and Cp′ and Q is a halogen or an alkyl having from 1 to 12 carbon atoms; e) heterogenising the ionic liquid/metal system by addition of an apolar solvent inducing the precipitation reaction; f) retrieving a metallocene catalyst component heterogenised by an ionic liquid. It also discloses an active catalyst system hetero genised by an ionic liquid and its use in the polymerisation of olefins.

REFERENCES:
patent: 5304615 (1994-04-01), Ambler et al.
patent: 5994602 (1999-11-01), Sada et al.
patent: 6340716 (2002-01-01), Armand et al.
patent: 2002/0010291 (2002-01-01), Murphy
patent: WO 01/81436 (2001-11-01), None
Dupont Jairton, et al, “Ionic Liquid (MoIton Salt) Phase Organometallic Catalysis”, Chemical Reviews, American Chemical Society, vol. 102, No. 10, Oct. 2002, pp. 3667-3692.
Welton, Thomas, “Room-Temperature Ionic Liquids. Solvents for Synthesis and Catalysis”, Chemical Reviews, American Chemical Society, vol. 99, 1999, pp. 2071-2083.

Affiliated with

Also associated with

Rating

Ionic liquids for heterogenising metallocene catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ionic liquids for heterogenising metallocene catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ionic liquids for heterogenising metallocene catalysts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4094227