Cyclic process for the preparation of barium sulphate and lithium metal phosphate compounds
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United States of America Patent
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Apr 16, 2013
Grant Date -
Oct 7, 2010
app pub date -
Jul 14, 2008
filing date -
Jul 18, 2007
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Abstract
A cyclic process for the preparation of barium sulphate and lithium-iron phosphate comprising (i) preparing an aqueous solution containing lithium and sulphate ions and (ii) adding solid barium hydroxide at a temperature of more than 50° C., wherein the barium hydroxide is added over a period of less than 15 minutes. Also, barium sulphate obtainable by the process according to the invention.
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