The Stillwater Complex in Montana (mainly the Benbow and Mouat deposits) contains an estimated 15.7 million short tons of ore containing 1.3 million short tons
WHIM is the short acronym for Wet High Intensity Magnetic Separation. At present, most U.S. iron raw materials are produced from magnetic taconites, which are ground to
The importance of controlling water inflow during shaft development has been well known to those faced with the problem. Depending on the amount, temperature, and
The chemicals involved in the work of this paper utilize a combination of mechanisms: charge effect neutralization and polymer bridging. There are a number of
Field tests on 20-year-old acidic copper tailing showed that after treatment with combinations of dolomitic lime, limerock, fertilizers, and/or sewage sludge, vegetation can be successfully
Commercial production of zinc by electrolysis began in 1881 following a patent by Letrange of France. The process has come down to the present day
Titanium dioxide or titania pigment is prepared commercially from ilmenite, an iron-titanium oxide mineral, by the sulfate process. Ilmenite is digested with H2SO4 to yield
Accurate modeling of structures by finite elements requires not only that the user estimate the load paths, and areas of stress concentrations or rapid variations,
Whenever the material and soil conditions permit its use, a belt conveyor in a reclaim tunnel is the most economical reclaim device due to its