MARK GREGORY STEINMETZ
Pilots at Woodruff Ave, Milwaukee, WI

License number
Wisconsin A4865622
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
4782 N Woodruff Ave, Milwaukee, WI 53211

Professional information

Mark Steinmetz Photo 1

Photodegradation Of Metal Chelate Complexes

US Patent:
4943357, Jul 24, 1990
Filed:
Jun 27, 1988
Appl. No.:
7/211784
Inventors:
William P. Van Antwerp - Pacific Palisades CA
Mark G. Steinmetz - Shorewood WI
Paul R. Goudy - Bayside WI
Assignee:
Photo Redux Corp. - Milwaukee WI
International Classification:
B01J 1912
US Classification:
20415715
Abstract:
A method of photodegrading a metallic chelate complex wherein ultraviolet light is directed into an aqueous solution of a metallic chelate to photodegrade the metallic chelate and isolate the metallic portion. The ultraviolet light has a wavelength of no greater than about 210 nm and the method is especially adapted for photodegrading metallic chelates in electroless nickel plating baths and metallic ethylenediamine triacetic acid to recover the metallic portions as well as reduce toxic waste.