ECONOMIC EVALUATION OF GOLD-ORE DUMP REPROCESSING EFFICIENCY
نویسندگان
چکیده
منابع مشابه
Reprocessing of Sangan iron ore tailings by flotation
The Sangan processing plant consists of four consecutive low-intensity magnetic separation steps with the same magnetic field intensity of 1300 Gauss for upgradation of iron ore. Hence, the iron ore minerals with lower magnetic susceptibility or interlocked with gangue minerals have no opportunity for upgradation, and proceed to the tailing dam. Flotation is a powerful technique for upgradation...
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Samples of the waste rock obtained from Marofengin South Africa ground 60, 70 and 80% passing 75µm were leached with cyanide in bottle roll tests. The results obtained showed that the percentage gold dissolution depends more on the ore size consists than on the cyanide concentration with the highest average dissolution rates of 88.75, 94.34 and 95.90% found at 600, 500 and 500 ppm, for 60, ...
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Currently, China is pursuing a long-term expansion of its nuclear power program and plans to reprocess the resulting civilian spent fuel, recycling the plutonium in MOX fuel for LWRs and in fast breeder reactors. China presently operates three civilian nuclear power reactors, but it plans to build about 20 reactors by 2020. A pilot civilian reprocessing plant has been built at Lanzhou, with a c...
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The orthogonal array design has been used to determine the optimum conditions for gold recovery from Zarshuran refractory gold sulfide ore (Iran) by direct cyanidation and roasting-cyanidation. The Taguchi method was used as the experimental design to determine the optimum conditions of dissolution behavior of gold with cyanidation and roasting-cyanidation from Zarshuran refractory gold ore . T...
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The term biomining have been coined to refer to the use of microorganisms in mining processes as in the biooxidation of refractory gold minerals. The biooxidation of refractory gold ores presents similar characteristics when compared with roasting and pressure oxidation. Almost without exception, microbial extraction procedures are more environmentally friendly. The isolated bacteria in this st...
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ژورنال
عنوان ژورنال: Economy of Region
سال: 2010
ISSN: 2072-6414
DOI: 10.17059/2010-2-13