C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/324, 53/354
C22B 3/04 (2006.01) A23K 1/175 (2006.01) C01G 49/00 (2006.01) C22B 3/46 (2006.01) C22B 7/02 (2006.01) C22B 19/28 (2006.01) C22B 19/30 (2006.01)
Patent
CA 2020757
- 15 - Recycling Metal Containing Compositions Abstract By treating a solution derived from bag filter dust--a side product from metal recycling processes--first with a minor amount of iron and subsequently with a minor amount of zinc, a product is produced that includes zinc and iron in the absence of contaminants such as cadmium, copper, nickel, lead and precious metals. Significantly, this essentially pure zinc/iron composition is commercially attractive as an animal feed supplement.
Bohrer Michael Philip
Burgess Robert Eugene
Hazen Wayne Wernecke
Law Henry Hon
O'hara Patricia Ann
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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