Recovery of fluorite and byproducts from Fish Creek Deposit, Eureka County, NV.
Benn-FW; Foot-DG Jr.; Huiatt-JL
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, RI 9028, 1986 Jan; :1-13
The Bureau of Mines investigated flotation methods for recovering fluorite and byproducts from two samples of the Fish Creek deposit in Eureka County, NV. The preferred method for treating a fluorite-beryllium sample included (1) fluorite rougher and cleaner flotation, (2) desliming, (3) muscovite flotation, (4) silicate flotation, (5) sodium hypochlorite wash of silicate concentrate, and (6) beryllium rougher and cleaner flotation from the silicate concentrate. Laboratory results showed that over 94 pct of the fluorite was recovered in a recleaner concentrate containing 98 pct CaF2. Beryllium flotation produced concentrates containing in excess of 5 pct BeO with recoveries over 70 pct. The preferred method used for a fluorite-mica sample consisted of (1) fluorite rougher and cleaner flotation, (2) desliming, and (3) mica flotation using an anionic-cationic collector system. Laboratory results showed that 84 pct of the fluorite was recovered in a recleaner concentrate containing 96 pct CaF2. Mica flotation produced a concentrate containing 95 pct mica at 85-pct recovery.
Beryllium; Mica; Nevada; Fluorite; Flotation; Mineral-deposits; Fish-Creek
IH; Report of Investigations
NTIS Accession No.
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, RI 9028