The Bureau of Mines has investigated an electrolytic recycling process to recover lead from scrap batteries as part of the effort to improve secondary recovery
Sulfide ores are generally concentrated by grinding with steel media followed by flotation. Interactions between the grinding media and sulfide minerals adversely affect the floatability
The basic condition controlling the choice of a dump or heap leaching process versus a fine grinding-agitation leaching process is the grade and tonnage of
Dredge Operation Visits The contract requirement was that nine mining dredge operations be visited to gather data on the operations, their safety hazards, and their
The objective of the work reported here was to examine, analyze and evaluate the safety hazards which affect mining dredge workers. The safety hazard consideration
There has been growing concern about the adverse effects on the environment associated with high temperature processing of galena. Because of the difficulties encountered with
Filter Presses Filter presses are batch units that use higher than atmospheric pressures and a series of filter plates to separate the solids from the
The disposal of wet fine-grained wastes from a milling operation can be a difficult challenge for the plant operator. He or she must consider the
Although a variety of inorganic and some organic reagents are used as depressants in the flotation recovery of sulfide minerals, a complete understanding of the
New mineral processing techniques being investigated by the Bureau of Mines and others, such as processing at elevated temperatures, leaching with acids and bases, chloride