Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1986-07-28
1987-12-08
Doll, John
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
423179, 423184, 423199, 423421, 423600, C01G 4512
Patent
active
RE0325562
ABSTRACT:
Cesium is recovered from cesium alum, CsAl(SO.sub.4).sub.2, by a two-reaction sequence in which the cesium alum is first dissolved in an aqueous hydroxide solution to form cesium alum hydroxide, CsAl(OH).sub.3, and potassium sulfate, K.sub.2 SO.sub.4. Part of the K.sub.2 SO.sub.4 precipitates and is separated from the supernatant solution. In the second reaction, a water-soluble permanganate, such as potassium permanganate, KMnO.sub.4, is added to the supernatant. This reaction forms a precipitate of cesium permanganate, CsMnO.sub.4. This precipitate may be separated from the residual solution to obtain cesium permanganate of high purity, which can be sold as a product or converted into other cesium compounds.
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Doll John
Langel Wayne A.
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