Leonardite is a coallike substance, similar in structure and composition to lignitic coal and believed to be derived from lignitic coal by the process of
The metallurgical laboratory data developed in this study indicate an improved electrowinning process for producing higher purity cerium ingot. Equipment under development included the molten-bath
Two methods of testing anchorages of headed expansion-type mine roof bolts were investigated by the Federal Bureau of Mines to determine whether they are acceptable
Selection of a suitable coal or coals for the manufacture of coke of desired quality with due consideration of the purpose for which the coke
The rare-earth metals can be fitted into Pauling’s electronegativity scale if it is modified to take highly ionic bonds into account. Good agreement between theory
Our line of cutting mills includes models which reliably process: soft, medium-hard, elastic, tough and, fibrous materials. All models are based on the same grinding geometry
The screw conveyor consists of a spiral blade attached to a shaft which revolves in a horizontal or inclined trough. Material fed into one end
Bucket elevators are used for the elevation of dry or pulped ore. They consist of an endless chain or belt carrying the buckets vertically or at
Mining consultants play a major role in the feasibility, planning, design and construction, operation and improvement of both small and large mines. Consultants are experienced design
We like to inform you with the composition of the different steels and other materials used in the manufacturing of grinding barrels to help you