The accumulation, handling, and utilization of sludges formed from wet process phosphoric acid is one of the major problems in the industry. The purpose of
Pneumatic stowing was first introduced in longwall mining in the middle twenties. Since that time it has advanced through many stages of development, particularly abroad,
There is much interest in the automation of entire comminution circuits. At the present technological level it is possible to automate a circuit but to
The planning of an underground mine for successful extraction of a bedded deposit in sedimentary rocks requires the integrated evaluation of many interdependent problems. The
Over a considerable period of time great interest has been shown in selective dry concentration of fine ferromagnetic particles, although it is only recently that
The pumping of abrasive and sometimes corrosive slurries is normally carried out at modest heads (say 100 ft) with specially designed centrifugal pumps. When heads
Kaolin is an important industrial mineral because it exhibits desirable properties in many applications and because of its relatively low cost. Approximately 2,000,000 tons of
Problems of mine backfilling and fill material deposited underground, the characteristics and relationship between the deposited fill material and overlying ground, and the practical applications
The success of Heavy Media Separation, the static sink-float process, is evidenced by the operation of an estimated 300 installations treating many millions of tons
Agglomeration, as used throughout this report, refers to a mineral dressing process in which the desired mineral, namely cassiterite, is selectively separated from the gangue