Method for the Production of Free Flowing Synthetic Calcium Fluoride and Use thereof
Assignee3M Innovative Properties Company
InventorsTilman Zipplies, Klaus Hintzer, Thorsten Gerdes, Achim Schmidt-Rodenkirchen, Sebastian Seidl, Thomas Berger
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Abstract
The invention relates to a process for producing free-flowing calcium fluoride particles from a diluted aqueous solution of hydrogen fluoride comprising the step of reacting the diluted aqueous solution of hydrogen fluoride with calcium carbonate particles at a temperature of less than 50° C. The invention further relates to the use of the free-flowing calcium fluoride particles for the manufacturing of anhydrous hydrogen fluoride.
Claims15
A process for producing free-flowing calcium fluoride particles from a diluted aqueous solution of hydrogen fluoride comprising the step of reacting the diluted aqueous solution of hydrogen fluoride with calcium carbonate particles at a temperature of less than 50° C.
Dependencies are inferred from the claim text.