Drainage of acid mine water into surface streams of coal mining areas is one of the most serious problems of stream pollution, since there is
Stainless steel construction SEALED RIFFLE SAMPLE DIVIDER A riffle splitter with a hopper a feed gate at the bottom of the hopper is called a
The Vezin Sampler can be used for primary or secondary sampling. It is a fully enclosed unit containing a rotating sample cutter that passes at
Concentrator Slurry Sampling In milling operations sampling is essential to proper control. This can only be based on the results obtained through sampling the various materials throughout
Many mineral samples are sent to Government agencies with the request that they be assayed or chemically analyzed. It should be emphasized that there are
The widespread occurrence of manganese in low grade oxide and carbonate ores not amenable to mechanical concentration has led to extensive investigations of hydrometallurgical methods
In most routine experimental work on products and processes, methods of operation and product evaluation are established from accurately controlled laboratory tests. With particular emphasis
In cleaning coal it has long been recognized that methods which give excellent results for the coarser sizes may give poor or even no cleaning
Bowl concentrators have been used only to a limited extent in small placer operations. The two most popular designs were the Ainlay and Knudsen bowls.
In classification of pulps bearing magnetized ferromagnetic particles, depolarizing is of great importance. If size separation is to be effective, particles must be individual rather