Extraction of metals from aqueous solutions with asphaltenes

Details Extraction of metals from aqueous solutions with asphaltenes Extraction of metals from aqueous solutions with asphaltenes

1985-12-18

1989-02-07

Stoll, Robert L.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75101BE, 423 24, 423 25, 210671, 210684, 210685, 210688, C22B 1104

Patent

active

048029203

ABSTRACT:
A process for extracting metals from aqueous solutions containing such metals comprising contacting such an aqueous solution with an asphaltene to extract at least one metal from the aqueous solution to the asphaltene, and recovering the thus extracted at least one metal from the asphaltene. Also disclosed is a process for sulfonating a petroleum fraction containing asphaltenes, the thus sulfonated asphaltenes being advantageously employable in the process for extracting at least one metal from an aqueous solution containing such metal.

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patent: 2748057 (1956-05-01), Goren
patent: 3089842 (1963-05-01), Stratton
patent: 3190829 (1965-06-01), Erdman
patent: 3432257 (1969-03-01), Spitzer et al.
patent: 4269789 (1981-05-01), Zornes

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