Process of preparing cesium salts from cesium-aluminum-alum

C - Chemistry – Metallurgy – 07 – C

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C07C 53/06 (2006.01) C01D 17/00 (2006.01) C07C 51/41 (2006.01) C07C 53/10 (2006.01) C07C 59/265 (2006.01)

Patent

CA 2161245

In the method proposed, caesium aluminium alum is reacted with an amount of calcium hydroxide which is equimolar with the aluminium and with an amount of a calcium salt readily soluble in water which is equimolar with the caesium in a single flask in the presence of water and the aluminium hydroxide and calcium sulphate which precipitate out are separated off by filtration or centrifugation

L'invention concerne un procédé de fabrication de sels de césium à partir d'alun de césium-aluminium, consistant à faire réagir l'alun de césium-aluminium avec une quantité d'hydroxyde de calcium équimolaire en aluminium, et avec une quantité équimolaire en césium, d'un sel de calcium d'une bonne solubilité dans l'eau, selon un processus en un seul pot, en présence d'eau, puis à séparer par filtration ou centrifugation l'hydroxyde d'aluminium précipité ainsi que le sulfate de calcium précipité.

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