Process for the preparation of nickel/phosphorous ligand...

Details Process for the preparation of nickel/phosphorous ligand... Process for the preparation of nickel/phosphorous ligand...

2005-05-24

2005-05-24

Nazario-Gonzalez, Porfirio (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C558S338000, C502S155000

Reexamination Certificate

active

06897329

ABSTRACT:
A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel the nickel chloride being introduced as an aqueous solution and the water being removed concurrently with the reduction reaction by azeotropic distillation.

REFERENCES:
patent: 3846461 (1974-11-01), Shook, Jr.
patent: 3846474 (1974-11-01), Mok
patent: 3903120 (1975-09-01), Shook, Jr. et al.
patent: 5061669 (1991-10-01), Puckette
patent: 5512695 (1996-04-01), Kreutzer et al.
patent: 5512696 (1996-04-01), Kreutzer et al.
patent: 5523453 (1996-06-01), Breikss
patent: 5532374 (1996-07-01), Lee et al.
patent: 5543536 (1996-08-01), Tam
patent: 5663369 (1997-09-01), Kreutzer et al.
patent: 5688986 (1997-11-01), Tam et al.
patent: 5693843 (1997-12-01), Breikss et al.
patent: 5723641 (1998-03-01), Tam et al.
patent: 5847191 (1998-12-01), Bunel et al.
patent: 5856555 (1999-01-01), Huser et al.
patent: 5959135 (1999-09-01), Garner et al.
patent: 6120700 (2000-09-01), Foo et al.
patent: 6171996 (2001-01-01), Garner et al.
patent: 6171997 (2001-01-01), Foo et al.
patent: 6284865 (2001-09-01), Tam et al.
patent: 6399534 (2002-06-01), Bunel et al.
patent: WO 9530680 (1995-11-01), None
patent: WO 0114392 (2001-03-01), None
patent: WO 02053527 (2002-07-01), None
patent: WO 03045555 (2003-06-01), None

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