Process for recovering cesium from cesium alum

Details Process for recovering cesium from cesium alum Process for recovering cesium from cesium alum

C - Chemistry, Metallurgy

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B

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C22B 3/00 (2006.01) C01D 17/00 (2006.01) C01G 45/00 (2006.01) C01G 45/12 (2006.01) C22B 26/10 (2006.01)

Patent

CA 1220350

ABSTRACT Cesium is recovered from cesium alum, CsAl(SO4)2, by an aqueous conversion and precipitation reaction using a critical stoichiometric excess of a water-soluble permanga- nate to form solid cesium permanganate (CsMnO4) free from cesium alum. The other metal salts remain in solution, providing the final pH does not cause hydroxides of aluminum or iron to form. The precipitate is separated from the residual solution to obtain CsMnO4 of high purity.

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