C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/168, 53/232,
C22B 7/00 (2006.01) C01G 55/00 (2006.01)
Patent
CA 1154265
Abstract: Platinum, palladium, rhedium, ruthenium, iridium and other metals are recovered from aqueous media containing precious metal ions in solution by contacting the metal-containing solution with blood meal to collect the metals in concentrated insoluble form in the blood meal, and recovering the thus collected metals from the resulting metals-loaded blood meal.
364375
Engelhard Corporation
Macrae & Co.
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