Dithiophosphate collectors are commonly used in the flotation of sulphide minerals. Studies of the interaction of a typical dithiophosphate collector with galena surfaces have been
Table of ContentsEvaporation and CondensationVolume DiffusionExperimental Method Two particles in mutual contact form a system which is not in thermo-dynamical equilibrium, because its total surface
In U. S. underground mines concrete work is not widely used. Timber and steel are cheaper, and there are few serious water problems. But in
Grinding Practice—These tests were run in the 9 ft diam by 8 ft long grate discharge ball mills at Climax. Each mill functions in closed
Iron king mine, producing gold-silver-lead-zinc ore, is 10 miles east of Prescott, Ariz. At present the 1806 level is being developed. The echelon pattern of
Table of ContentsHumphreys Spiral Concentration of Iron OreThe Cleveland-Cliffs Iron Company PlantSpiral Plant Operation and PerformanceGrindingSpiral Concentration Since it was introduced in 1943 to recover
An emulsion is a two-phase system consisting of two incompletely miscible liquids, the one being dispersed as finite droplets in the other. The dispersed liquid
Table of ContentsEquipmentFlowsheetsCapacities of CobbersSpeed and Strength of Magnet vs. Size of Material being TreatedMetallurgical Problems Cobbing, as used in this paper, refers to coarse
Idlers: Due to the efforts of the Conveyor Equipment Manufacturers Association, the basic idler elements—idler roll wall thickness, bearing sizes and shaft sizes—have been standardized
Table of ContentsShell LinersEnd LinersInner Deflector LinersOuter Deflector and Ring LinersWhy the Aerofall Mill is Unique in the Comminution FieldDetailsPebble Mills Using Composite Pebble and