Metal recovery

Details Metal recovery Metal recovery

1982-12-01

1984-08-28

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204 3, 204110, 75101BE, 75109, 75118R, 423 24, 423 25, 210673, 210674, C25C 120

Patent

active

044683030

ABSTRACT:
The present invention provides in one aspect a process in which a particulate material containing water and having adsorbed thereon a solubilized gold compound is located in packed form in a fractionating column, a liquid containing a major proportion of water miscible organic liquid is boiled in an evaporator such that it enters the packed fractionating column as a vapor, said water miscible organic liquid being more volatile than water and being preferentially retained in the column.
The present invention provides in another aspect a method of recovering gold from an aqueous solution, which comprises placing the gold containing aqueous solution in a cell comprising a gold, silver, aluminium or copper cathode and an inert electrode, subjecting the solution to electrolysis in the cell so as to deposit a gold foil on the cathode.

REFERENCES:
patent: 3512252 (1970-05-01), Sargent
patent: 3840365 (1974-10-01), Hammes, Sr. et al.
patent: 3935006 (1976-01-01), Fischer
patent: 4186085 (1980-01-01), Savage
patent: 4201605 (1980-05-01), Savage et al.
patent: 4372830 (1983-02-01), Law

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