High-pressure grinding rolls (HPGRs) have struggled for acceptance into the hard-rock mining sector. CRITICAL HPGR PARAMETERS HPGR roll diameters typically range from 0.5 m to
The 911JAC12K MINI Rock Crusher is our smallest rock crusher, designed for those on a tight budget. It includes all the high-quality, precision-machined parts that
Sphalerite, the ore mineral in this area, occurs with a considerable amount of marcasite. In general the higher the percentage of sphalerite in the ore,
Among the many factors involved in rotary kiln efficiency, advantageous use of refractories is of major importance. So far as kiln lining alone is concerned
In the mineral industry measurement of density or specific gravity of slurries is often necessary or highly desirable. To date the most successful method of
For several years work has been carried on by the U.S. Bureau of Mines at Rolla, Mo., to develop improved methods of concentrating the oxidized
A Survey of the Japanese chemical industry in 1949 revealed, among other things, that sulphur-bearing blast furnace gas from the Kosaka smelter of The Dowa
To those working in the mineral industry, the flowsheet is a familiar and valuable tool, seldom used, unfortunately, to its fullest advantage. As with so
In an earlier phase of the investigation, an experimental room was progressively mined to an areal dimension of 50 by 100 feet. As the dimensions
The paper is based on laboratory and pilot plant investigations which led to the development of a series of processes for production of high purity