Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Eric A. Haupfear0
Roger J. Hoekstra0
David R. Eaton0
Mark D. Scaia0
Date of Patent
March 30, 2010
0Patent Application Number
112734100
Date Filed
November 14, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
This invention generally relates to processes for recovering solubilized noble metals from aqueous process streams, in particular, aqueous process streams generated in the preparation of an N-(phosphonomethyl)glycine product, for example, by noble metal-catalyzed oxidation of an N-(phosphonomethyl)iminodiacetic acid substrate. The process includes contacting the aqueous process stream with a noble metal adsorption media such as an ion exchange resin to remove solubilized noble metal from the process stream.
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