Abstract The U.S. Bureau of Mines has patented and transferred to industry an abrasive-enhanced water-jet rock drill. This drill incorporates three novel components: a collimator,
Objective Utilize innovative processing technology to prepare high-purity, ultrafine advanced ceramic powders with little or no contamination occurring during the milling proccss. Advanced ceramic materials
Objective Provide the U.S. mining industry with technology for designing environmentally sound, low- cost in situ leach mining operations to produce copper from small, deep,
Objective Provide an environmentally compatible means of producing lead from galena concentrates that replaces the current high-temperature pyrometallurgical primary lead smelting process and supplies pure
A novel technique has been employed by the U. S. Bureau of Mines to determine the zeta potential of particles for a far-reaching series of
Objective Develop new technolgies and techniques which enable recovery of strategic and critical minerals such as cobalt from domestic resources, thereby easing the U.S. dependence
A system capable of monitoring a mine electrical power system to detect incipient electrical component failure could significantly improve power system safety and availability. The
The packed jig is a column filled with corrugated diagonal packing. A slurry of mixed particles, the ore, is fed into the middle of the
We will discuss the fundamental elements of cutoff grade optimization and demonstrate how cutoff grade optimization may improve NPV of a given operation under different
Low-cost oxidation pretreatment technologies are needed in order to economically extract precious metals from refractory sulfidic deposits as the world’s free-milling reserves are consumed. Already,