Separation of heavy metals from aqueous media

C - Chemistry – Metallurgy – 02 – F

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C02F 1/62 (2006.01) C02F 1/28 (2006.01)

Patent

CA 2124193

Heavy metals are separated from aqueous media containing the same by contacting the said medium with finely divided iron oxide (Fe3O4) and finely divided ferrous sulphide, maintaining said contact until at least a substantial proportion of said heavy metal has become bound to said iron oxide and ferrous sulphide, and then separating the iron oxide and ferrous sulphide having heavy metal bound thereto from the aqueous medium.

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