Method for working-up shale

Details Method for working-up shale Method for working-up shale

1976-06-25

1978-10-17

Padgett, Benjamin R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 20, 423 57, 423 67, 423128, 423132, 423166, 423304, 75 841R, B01D 1100

Patent

active

041209346

ABSTRACT:
The invention is a method for working-up shale while recovering metals therefrom and the sulphur content thereof. The method comprises crushing the shale and leaching and roasting the shale. The sulphur content is oxidized and converted into sulphuric acid, concentrated sulphur dioxide or sulphur. The leaching operation is effected with sulphuric acid. The leached metals are recovered in a manner known per se and the residual solution is passed to the roasting stage.

REFERENCES:
patent: 2954218 (1960-09-01), Dew et al.
patent: 2979378 (1961-04-01), Koble
patent: 3183058 (1965-05-01), Peter
patent: 3273972 (1966-09-01), Campbell et al.
patent: 3843524 (1974-10-01), Perricone et al.
patent: 3920788 (1975-11-01), Mercier et al.

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