The importance of efficient use of power in autogenous grinding circuits has been greatly neglected. It should be the fundamental factor in considering the design
This Mobile Rock Crusher provides a portable crushing capability to keep conveyor haulage close to the working face and permit more efficient and safer ore
Factors Directly Affecting Molybdenite Flotation: The average molybdenite recovery in the copper concentrator for the first nine months of 1980 was 67.13%. In recent months, there
The Bureau of Mines once modified a commercial atomic absorption spectrophotometer to rapidly determine trace levels of mercury by cold-vapor atomic absorption spectrophotometry AA. Such
Leaching of porphyry copper mine strip wastes and low-tenor ores provides a substantial part of U.S. copper needs. Dump leaching requires years to extract part
The KREBS Mixer-Settler as shown on Fig. 1 includes the following features: A MIXING IMPELLER selected to best satisfy dispersion requirements. A low turbulence CONICAL
To discuss “Large Diameter Thickeners in the Phosphate Industry” is to discuss large diameter slimes thickeners in general. Since 1948, Dorr-Oliver has supplied these machines
To help maintain an adequate supply of minerals to meet national economic and strategic needs, the Bureau of Mines developed a mathematical model that describes
This Bureau of Mines investigation was prompted by the need for a stable anode for electrowinning metals, particularly zinc and copper, from acid solutions. The polarization
Acid leaching has been used in the uranium milling industry since the mid-forties and has accounted for a majority of the production since that time.