Title: Process for the manufacture of a compacted synthetic flux based on calcium fluoride

Abstract: A process for producing a compacted calcium fluoride based synthetic flux from an aqueous effluent containing fluorine ions, by precipitating fluorine ions as calcium fluoride, reducing the water content of the precipitate to the range from about 10 percent to 30 percent by weight, mixing the precipitate with a binding agent, compacting the mixture and thereafter drying the compacted mixture.

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Inventors: Skaria, Arankathu (Stafe, CH)
Stark, Reiner (Fallanden, CH)

Application Number: 557370
Filing Date: 1975-03-11
Publication_date: 1977-08-23
Assignee: Swiss Aluminium Ltd. (Chippis, CH)
Primary Class(es): 75/767 75/768, 423/158, 423/490
Other Classes:
US Patent Ref:

3366444	Jan, 1968	Laferty	423/490.
3627592	Dec, 1971	Schmidt	148/26.
3842161	Oct, 1974	Hyoky	423/490.

Other Refs: 979,583

Jan, 1965	UK

Primary Examiner: Rosenberg, Peter D.
Assistant Examiner:
Attorney: Marmorek; Ernest F.