By S.L. Crouch, A. M. Starfield
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Extra resources for Boundary Element Methods in Solid Mechanics: With Applications in Rock Mechanics and Geological Engineering
These depressants were extensively examined on copper oxide ores from the Nchanga mine in Zambia. 6 shows the grade–recovery relationship using different depressant combina tions. Depressants 3XD and 2MD have shown excellent gangue depression. The presence of clay in the ore has a detrimental effect on copper oxide flotation. Results from experimental development test conducted on various clay containing ore types using AQ depressants showed that in the presence of these depressants, the results improved markedly using the sulphidization flotation method.
Johannesburg, South Africa, CIM Special Volume 23, Chapter 11, 1981. pp. 234–250. 2. , Platinum Metals in Magnetic Sulphide Ores, Science, Vol. 208, pp. 1417–1424, 1980. 3. , Igneous and Tectonic Structures of Stillwater Complex, Montana, US Geological Survey Bulletin, Vol. 10714, pp. 281–335, 1960. 4. , Platinum Metals Associated with Hydrothermal Copper Ores of the New Rambler Mine, Medicine Bow Moun tain, Economic Geology, Vol. 71, pp. 1429–1459, 1976. 5. , Economic Geology of the Platinum Group Minerals, US Geological Survey, Professor Paper #630, 1969.
7) usually appears in small quantities together with malachite in a number of deposits in Zambia and Congo. From plant and laboratory data, azurite has similar flotation properties as malachite. 8) is common to the Atacoma desert in Chile, for which this mineral was named. As an individual mineral, it does not have any significant economic value. No data on the floatability of this mineral are known. 4) is the most studied mineral of all the oxide minerals. Extensive laboratory studies have been conducted by numerous researchers [9–11].