Recovery of gold and uranium from calcines

Details Recovery of gold and uranium from calcines Recovery of gold and uranium from calcines

1978-10-17

1981-10-06

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 20, 423 29, C01G 4300

Patent

active

042935300

ABSTRACT:
The invention concerns the recovery of non-ferrous metals, such as gold, uranium or the like from iron oxide containing calcines which have the non-ferrous metal present in solid solution and/or encapsulated within the iron oxide. The calcine is reacted, while stirring vigorously, with sulphuric acid or another strong inorganic acid to cause the iron to form the ferric salt. The material obtained is mixed with water and the liquid and solid phases are separated from each other. The non-ferrous metal is then obtained from at least one of these phases by leaching, or the like.

REFERENCES:
patent: 2737438 (1956-03-01), Gaudin
patent: 2797977 (1957-07-01), Forward et al.
patent: 2838369 (1958-06-01), Gaudin et al.
patent: 2894809 (1959-07-01), McCullough et al.
patent: 2925321 (1960-02-01), Mariacher
patent: 3092447 (1963-06-01), Legge et al.
patent: 3273972 (1966-09-01), Campbell et al.
patent: 3341303 (1967-09-01), Berri et al.

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