C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/24, 53/354,
C10G 1/04 (2006.01) C02F 1/28 (2006.01)
Patent
CA 1200778
TITLE RECOVERY OF ORGANIC AND HEAVY METAL COMPONENTS FROM AQUEOUS DISPERSIONS INVENTORS Abdul Majid A. Frederick Sirianni John A. Ripmeester ABSTRACT OF THE DISCLOSURE Dispersed organic and, in many cases, heavy metal components are recovered from aqueous tailings or effluents by steps comprising, (a) adding a hydrophobic collecting agent to the aqueous effluent or tailings, (b) providing that the solids content of the resulting aqueous mixture is within from about 10 to about 75% by wt., and selected to allow fluid agitation, (c) agitating the resulting mixture until the collecting agent, organic components and hydrophobic heavy metal components become agglomerated into discrete solid masses, (d) separating these masses from the aqueous medium, (e) washing the masses with a selected organic solvent to extract organic material, and (f) recovering organic material from the loaded solvent. Preferably, at least in the case of tar sands processing effluents, heavy metal minerals are recovered from the washed masses and the minerals treated to recover e.g., Ti and Zr.
438073
Majid Abdul
Ripmeester John A.
Sirianni A. Frederick
National Research Council Of Canada
Thomson Alan A.
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