Silver was one of the first metals known to man, and metallurgical processes for the recovery of silver from ores date back into antiquity. Mercury
For many years, the impact test has been one of several techniques used to determine explosive sensitivity. This test has provided a useful index having
Classic flotation and roasting procedures for recovering molybdenum oxide from molybdenum source materials frequently result in low recovery of molybdenum. This is particularly true in
Although the comminution process has undergone much experimental study, there is not yet an adequate theoretical basis for predicting the mean size and size distribution
The growth in demand for certain lanthanides has resulted in the development of industrial processes for their separation and purification from source materials. These operations
Composite diaphragms were constructed and used for the electrowinning of Ti from TiCl4 to eliminate some of the problems associated with diaphragm failure. High-purity titanium
Transporting solids in pipelines generally is considered economical in the mining industry as well as in other industries. For example, the procedure has been used
The extraction of gold from ores that contain carbon and organic compounds has presented a problem to the cyanide mill operator ever since the widespread
We recently prepared recommendations on methods of evaluating and classifying flammable liquids and solids for use in government transportation regulations. This report is the third
The Bureau of Mines research programs are partly directed to developing safety guidelines for the reduction of fires and explosions in industries that produce, transport,