Determining Suitable Dredge Size: After the placer deposit is properly prospected the miner has a reasonable knowledge of the volume and grade of the placer together
The functioning and capacity of a dredging system must be keyed to the environmental and natural conditions of climate, water availability, location, and the physical
For the past decade, the Bureau of Mines has addressed the problem of using low-grade scrap, such as the ferrous fraction of municipal refuse, to
Nickel and copper were co-extracted from ammoniacal ammonium sulfate leach liquors (pH-9.5) with LIX 64N extractant in a laboratory-size mixer-settler continuous circuit. Three extraction stages
The practical application of common alkaline inorganic chemicals such as lime, soda ash, caustic, silicates and phosphates, in the beneficiation of minerals, is well known
Pilot test results with 30% refuse slurry suggested the installation of two (2) Passavant Pressure Filters, Model 20 with 150 chambers each and a cake
A series of tests on a 24 inch hydrocyclone operating on a copper ore slurry were run. The ore was selected so as to be
This Bureau of Mines publication provides information to assist in selecting a lixiviant (leach solution) for in situ uranium leaching. The cost, advantages, and disadvantages
Reducing the inorganic sulfur in coal to tolerable limits by physical beneficiation, including flotation, as now practiced, still is relatively inefficient and has not kept
As part of its mission to maintain an adequate supply of minerals to meet national needs and maximize mineral production from domestic sources, the Bureau