Iron is the second major element in chromite. In smelting operations where ferrochrome is the product, a specific range in the chromium-to-iron ratio is desired.
At this Center, results from this method have been used almost exclusively as data for the calculation of the total degree of reduction in a
The total chromium content in mineral chromite and ferrochrome slags can range from a fraction of a percent in the slags to greater than 30
This report describes the elemental characterization of chromite and related materials at the Bureau of Mines, Albany Research Center. Analytical methods for determining the major
The past decade has provided a wealth of practical experience with longwall pillar design. Design formulas developed specifically for longwalls have proven their value in
Impact and abrasion properties of various commercial US grinding balls were evaluated and compared by the Bureau of Mines, US Department of the Interior. Laboratory
The US Bureau of Mines is conducting core leaching experiments with sulfuric acid on oxide copper ores from the Cyprus Casa Grande and Asarco-Freeport Santa
Since changing the capacity of operating systems can be very expensive, it is important that mining engineers have accurate capacity design tools. Although many modeling
A hydrometallurgical testing program to define the basic criteria, like recovery and sulfuric acid consumption, for a commercial heap leach system design, to process the
The test method developed to determine the permeability of ore under increased confining pressure was modified from the Bureau of Reclamation test standard, Designation E-14