Foam injection leaching process for fragmented ore

Details Foam injection leaching process for fragmented ore Foam injection leaching process for fragmented ore

1976-12-10

1978-03-21

Ozaki, G.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

75101R, 75103, 75117, 299 5, 423 41, C22B 1510

Patent

active

040804194

ABSTRACT:
This invention relates to a process for leaching broken or fragmented ore or metal-value containing bodies with a reagent-carrying foam. The foam is generated by adding a surfactant to a leaching solution and passing air or other gas through the solution to generate relatively stable foam bubbles which are propelled through the fragmented mass by gas pressure. The foam can be injected in cycles, allowing drain time, or can be injected continuously with the leachant drainage taking place at the periphery of the ore mass and removed continuously.

REFERENCES:
patent: 2161800 (1939-06-01), Cross
patent: 2822158 (1958-02-01), Brinton
patent: 3498674 (1970-03-01), Matthews
patent: 3647423 (1972-03-01), Acoveno
patent: 3708206 (1973-01-01), Hard et al.
patent: 3799764 (1974-03-01), Opie et al.
patent: 3841705 (1974-10-01), Girard et al.
patent: 3894770 (1975-07-01), Huff et al.
patent: 4017120 (1977-04-01), Carlson et al.

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