Process for recovering cesium from cesium ore

Details Process for recovering cesium from cesium ore Process for recovering cesium from cesium ore

C - Chemistry, Metallurgy

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B

53/272

C22B 26/10 (2006.01) C01G 45/12 (2006.01) C22B 3/00 (2006.01)

Patent

CA 1217637

ABSTRACT Cesium is recovered from a cesium-bearing mineral such as pollucite by extraction with hydrochloric acid to obtain an extract of cesium chloride and other alkali metal and polyvalent metal chlorides. The iron and aluminum chlorides can be precipitated as the hydroxides and separat- ed from the solution of the alkali metal chlorides to which is added potassium permanganate or other water-soluble permanganate to selectively precipitate cesium permanganate. The cesium precipitate is then separated from the residual solution containing the metal chlorides. The cesium permanganate, which is in a very pure form, can be converted to other cesium compounds by reaction with a reducing agent to obtain cesium carbonate and cesium delta manganese dioxide.

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