Process of producing potassium tetrafluoro aluminate
AssigneeKali-Chemie Aktiengesellschaft
InventorsHeinrich Willenberg, Karl-Heinz Hellberg, Heinz Zschiesche
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Abstract
Potassium tetrafluoro aluminate of a melting point not exceeding 575.degree. C. is produced by reacting an aqueous solution of fluoro aluminum acid with an aqueous solution of a potassium compound, especially of potassium hydroxide, the amount of potassium in said solution being less than the stoichiometrically required amount.
Claims14
A process for producing potassium tetrafluoro aluminate having a melting point not exceeding about 575.degree. C., comprising the steps of:
- reacting an aqueous solution of fluoro aluminum acid with an amount of an aqueous solution of a potassium compound which is less than the stoichiometrically required amount calculated with respect to the total charge of reactants to produce a suspension of potassium tetrafluoro aluminate;
- and
- separating the potassium tetrafluoro aluminate from the resulting suspension.
A process for producing potassium tetrafluoro aluminate having a melting point not exceeding about 575.degree. C., comprising the steps of:
- reacting an aqueous solution of fluoro aluminum acid with an amount of an aqueous solution of a potassium compound comprising potassium hydroxide having a concentration between about 2% by weight and 25% by weight which is less than the stoichiometrically required amount calculated with respect to the total charge of reactants to produce a suspension of potassium tetrafluoro aluminate;
- and
- separating the potassium tetrafluoro aluminate from the resulting suspension.
Dependencies are inferred from the claim text.