Hydroformylation process employing a cobalt-based catalyst...

Details Hydroformylation process employing a cobalt-based catalyst... Hydroformylation process employing a cobalt-based catalyst...

2007-05-29

2007-05-29

Bhat, N. (Department: 1764)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including internal mixing or stirring means

C422S234000, C422S261000, C568S451000, C568S454000

Reexamination Certificate

active

11350881

ABSTRACT:
A process for hydroformylating olefinically unsaturated compounds by means of a cobalt-based catalyst is carried out in a non-aqueous ionic liquid which is a liquid at a temperature below 90° C. and comprises at least one ammonium and/or phosphonium and/or sulfonium cation Q+and at least one anion A−; catalyst recycling is improved by using a ligand selected from the group consisting of Lewis bases and employing a depressurization step between the pressurized reaction step and the step for separating the phases by decanting. At the end of said depressurization step, the organic phase is separated in the decanting step and the non-aqueous ionic liquid containing the catalyst can be re-used.

REFERENCES:
patent: 3565823 (1971-02-01), Parshall
patent: 4258215 (1981-03-01), Dawes
patent: 4567305 (1986-01-01), Matsumoto et al.
patent: 5763679 (1998-06-01), Nicholson et al.
patent: 5874638 (1999-02-01), Chauvin et al.
patent: 5919987 (1999-07-01), Kneuper et al.
patent: 6040483 (2000-03-01), Olivier et al.
patent: 6410799 (2002-06-01), Favre et al.
patent: 6469216 (2002-10-01), Hillebrand et al.
patent: 6617474 (2003-09-01), Favre et al.
patent: 6677268 (2004-01-01), Hillebrand et al.
patent: 11 065 95 (2001-06-01), None
patent: 11 821 87 (2002-02-01), None
patent: 01 00970 (2002-07-01), None
XP-002223564—Organometallics 2000, vol. 19, pp. 3818-3823, “Ionic Phosphine Ligands with Cobaltocenium Backbone: Novel Ligands for the Highly Selective, Biphasic, Rhodium-Catalyzed Hydroformylation of 1-Octene in Ionic Liquids”, Claudia C. Brasse et al.
English translation of French Application No. 01.00970.

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