Studies on the Extractive Metallurgy of Complex Sulfide Ores (2nd Report)
نویسندگان
چکیده
منابع مشابه
Extractive metallurgy of rare earths
Although most of the rare earth metals were discovered in Sweden, the industrialisation started in the Austrian Empire. This was due to the fact that the Swedish chemist Jons Fridrik Bahr (1815–1875) from Uppsala went to Heidelberg in Germany in 1855 to analyse some rare earth minerals by the spectroscope discovered recently by chemistry professor Robert Bunsen (1811– 1899) and his colleague ph...
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Hydrometallurgical technology offers a unique possibility for developing countries to exploit their mineral resources locally instead of shipping them as concentrates. Production plants may start on a small scale with small capital investment then increase productivity later when the economy permits without financial penalty. This is in contract to smelting operations which necessitates large s...
متن کاملTannins in Mineral Processing and Extractive Metallurgy
This study provides an up to date review of tannins, specifically quebracho, in mineral processing and metallurgical processes. Quebracho is a highly useful reagent in many flotation applications, acting as both a depressant and a dispersant. Three different types of quebracho are mentioned in this study; quebracho “S” or Tupasol ATO, quebracho “O” or Tupafin ATO, and quebracho “A” or Silvafloc...
متن کاملSolvent extraction: the coordination chemistry behind extractive metallurgy.
The modes of action of the commercial solvent extractants used in extractive hydrometallurgy are classified according to whether the recovery process involves the transport of metal cations, M(n+), metalate anions, MXx(n-), or metal salts, MXx into a water-immiscible solvent. Well-established principles of coordination chemistry provide an explanation for the remarkable strengths and selectivit...
متن کاملDirect sulfide oxidation in the solubilization of sulfide ores by Thiobacillus ferrooxidans.
The increased rate of solubilization of sulfide ores of iron and copper caused by Thiobacillus ferrooxidans has been attributed either to direct action of the bacteria on the ore or to an indirect effect whereby the ferric ion is presumed to oxidize the ore and is returned to the active, oxidized state by the iron-oxidizing bacteria. Attempts by M. P. Silverman (3) to demonstrate that microbial...
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ژورنال
عنوان ژورنال: Journal of the Mining and Metallurgical Institute of Japan
سال: 1964
ISSN: 0369-4194,2185-6729
DOI: 10.2473/shigentosozai1953.80.910_366