Steven M Hoagland

US Patent:

56544588, Aug 5, 1997

Filed:

May 14, 1993

Appl. No.:

8/050433

Inventors:

Michael D. Fabiano - San Francisco CA
Gary A. Kordosky - Tucson AZ
Phillip L. Mattison - Santa Rosa CA
Michael J. Virnig - Santa Rosa CA
Bert Gruber - Bedburg, DE
Steven M. Hoagland - Lawrenceville NJ

Assignee:

Henkel Corporation - Plymouth Meeting PA

International Classification:

C07F 1500

US Classification:

556136

Abstract:

Improvement on the recovery of palladium from aqueous acidic solutions employing ketoximes, including novel ether oximes and palladium complexes, comprising contacting the aqueous acidic solution containing the palladium with an organic solvent containing the oxime to form two immiscible phases, separating the organic and aqueous acidic phases and stripping the palladium values from the organic phase using an aqueous ammonia solution. The organic phase may contain phase transfer agents and modifiers.