C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/56
C02F 1/00 (2006.01) C02F 1/52 (2006.01)
Patent
CA 1069626
ABSTRACT In an aqueous solution heavy metal pollutant ions are removed as a precipitate formed by adding an insoluble slurry of a metal sulfide salt. The supernatant liquid is free of colloids.
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