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US 4,980,135 AGranted
Process for separating barium from water-soluble strontium salts
AssigneeKali-Chemie Aktiengesellschaft
InventorJacopo Porta
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Abstract
A process is described for separating barium from barium-containing, water-soluble strontium salts by means of an alkali metal sulfate. The process can be carried out either batch-wise or continuously and enables readily controlled production of strontium salts which are especially low in barium content.
Claims20
A process for separating barium from barium-containing water-soluble strontium salts, comprising the steps of:
- (a) precipitating a solid by adding an alkali metal sulfate to an aqueous solution of a barium-containing strontium salt having a pH value between about 1 and about 10,
- (b) separating the precipitated solid from the solution, and
- (c) isolating the strontium salt, which has been depleted of barium, from the solution.
Dependencies are inferred from the claim text.