Cyprus Pima has two concentrators, one with a conventional crushing-grinding circuit and the other using semiautogenous grinding followed by ball mills. Old Mill Flowsheet The
This paper describes some of the latest improvements that have been incorporated or planned by the Cleveland-Cliffs Iron Company to reduce operating costs and improve
The reliability of large diameter, high horsepower ball mill is paramount when large production and minimum downtime is required. The 17 ft. x 56 ft. double
Samples of a topaz-bearing gneiss from Jefferson County, Colorado, and a topaz-bearing schist from Chesterfield County, South Carolina, were obtained for the investigation. These are
Filtration of the insoluble slimes flotation concentrates recovered 87 to 90 percent of the brine. Flotation concentrate filtration rates were 7 times faster than the
The response of feldspar flotation to tallow diamine dioleate collector in the presence of sulfuric acid is studied using, batch flotation experiments. Application of this
LIX63 in combination with DNNS selectively extracts nickel and/or cobalt from acidic leach liquors with pH values as low as 1.0. Nickel/cobalt and cobalt/nickel selectivities
Tar sand deposits in the State of Utah contain more than 25 billion barrels of in-place bitumen. Although thirty times smaller than the well-known Athabasca
Dissolved zinc concentrations averaged 9,400 µg/L (micrograms per liter) in water from abandoned lead and zinc mines, some of which discharge at the surface. Contamination
In recent years, hydrometallurgical processes for recovery of metal values from low-grade ore minerals have played an increasingly important role. Dump leaching of low-grade copper