Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkaline earth metal
Patent
1980-02-27
1982-05-04
Straub, Gary P.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkaline earth metal
423 2, 423167, 423249, 423319, 423321R, 423555, C01F 1146, C01F 1300, C01B 2516
Patent
active
043281931
ABSTRACT:
Disclosed is a method for treating substantially homogeneous monocalcium phosphate (MCP) solutions that contain undesirable amounts of radium which comprises centrifuging these MCP solutions sufficiently to separate at least a portion of the radium from the solution. Such treated MCP solutions may then be reacted with sulfuric acid to simultaneously produce a phosphoric acid solution and a calcium sulfate precipitate such as gypsum having low levels of radium content.
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O'Day Thomas P.
Olin Corporation
Simons William A.
Straub Gary P.
United States Gypsum Company
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