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DOI: 10.1016/J.MINPRO.2016.05.016 Corpus ID: 100493464; Study on thermal decomposition and arsenic removal of a silver bearing copper ore @article{Lu2016StudyOT, title={Study on thermal decomposition and arsenic removal of a silver bearing copper ore}, author={Wei-Hong Lu and Zhoulan Yin}, …
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Chalcopyrite (CuFeS 2), with 36.4% Cu, is the main copper-bearing mineral. In some nickel-copper sulphide ores, chalcopyrite is much more abundant than pentlandite. As an additional Cu-bearing sulphide mineral, the deposits also have cubanite (CuFe 2 S 3) in smaller amounts. Other minerals that are present in small amounts include marcasite ...
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In this study beneficiation of a sulphide ore from the Gümüşhane-Black Sea Region of Turkey was investigated. Detailed flotation studies were carried out with the ore sample which contained 2.95% Pb, 6.72% Zn and 0.32% Cu. Mineralogical analyses showed that the sample includes pyrite, galena, sphalerite, chalcopyrite, tennantite, cerussite, …
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Complex sulphide ores represent considerable reserves and resources in base non ferrous metals, in precious metals, and in sulphur. Some of their essential characteristics, which allow a general presentation of the complexity of their processing options, from the ore to the pure metals or finished products, have already been presented by the author (1,2).
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Abstract The processing of gold bearing sulphide minerals which contain arsenopyrite and other complex arsenic sulphide minerals results in arsenic containing emissions and effluents ... Development and evaluation of an early removal process for the beneficiation of arsenic-bearing copper ores. W. Bruckard K. Davey +4 authors E. …
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Arsenic is a troublesome impurity in copper concentrates where it is usually present as enargite (Cu3AsS4). ... "Beneficiation of a Gold Bearing Enargite Ore by Flotation and As Leaching with Na-Hypochlorite ... S.A. Awe, A. Sandström, "Selective Leaching of Arsenic and Antimony from a Tetrahedrite Rich Complex Sulphide Concentrate using ...
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2.2.. Stabilization test methodsStabilization tests were conducted on synthetic arsenic oxides, As 2 O 3 and As 2 O 5, as representatives of arsenic-bearing fumes generated from the roasting tests.The immobilization schemes included iron or calcium compounds, Ordinary Portland Cement (OPC) blends with lime and granulated slags, …
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Selective sulphide concentrates with low arsenic content were tried to be produced by froth flotation. Individual concentrates of Pb, Zn and Cu assayed 67.54% Pb, and …
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These latter processes will also deliver the arsenic in a manageable product [5,6]. Recent research studies have been focused on the possibility for separation of arsenic-bearing copper minerals ...
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In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals.
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Particle size dependence on antimony and arsenic dissolution The influence of particle size on the extraction of antimony and arsenic from the complex sulphide concentrate was examined for three different size fractions ( 106 + 75, 75 + 53 and 53 + 38 lm) at 378 K using solutions containing 1.14 M Na2S and 1.5 M NaOH.
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Key words: arsenic, non-toxic depressants, sulphide minerals, flotation Introduction The treatment processes for the beneficiation of copper-lead-zinc ores are generally complex. The methods used in the processing of copper-lead-zinc ore could be classi-fied as follows (Bulatovic, 2007): a) sequential copper, lead, zinc flotation method
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Beneficiation of arsenic bearing complex sulphide ore by flotation; Download PDF - Beneficiation of arsenic bearing complex sulphide ore by flotation. ... VANCE E. R., 2010, Development and evaluation of an early removal process for the beneficiation of arsenic-bearing copper ores, Mining Engineering, 23, No. 15, 1167. 4. BULATOVIC S ...
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The common copper–arsenic bearing minerals in copper ores, enargite (Cu 3 AsS 4) ... Development and evaluation of an early removal process for the beneficiation of arsenic-bearing copper ores. Minerals Engineering ... Effect of surface oxidation on the flotation response of enargite in a complex ore system. Minerals Engineering, Volume …
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In this study beneficiation of a sulphide ore from the Gumiishane-Black Sea Region of Turkey was investigated. Detailed flotation studies were carried out with the ore sample …
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In silver-bearing lead–zinc ore, the dominant mineral compositions are silver, galena, sphalerite and pyrite. In which, the major target minerals recovered as valuable minerals are galena, sphalerite and silver, where silver is usually recovered as an associated mineral along with galena, while pyrite needs to be removed as a hazardous …
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The influence of particle size on the extraction of antimony and arsenic from the complex sulphide concentrate was examined for three different size fractions ... Beneficiation of a gold bearing enargite ore by flotation and As leaching with Na-hypochlorite. Minerals Engineering, 18 (8) (2005), pp. 849-854.
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The influence of elevated arsenic concentrations in the treatment of copper-arsenic sulfides and to a lesser extent the treatment of copper-gold-arsenic sulfides are considered in this presentation.
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Gold concentration usually consists of gravity separation, flotation, cyanidation, or the combination of these processes. The choice among these processes depends on the mineralogical characterization and gold content of the ore. Recently, the recovery of gold using gravity methods has gained attention because of low cost and …
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This is an article in the field of mineral processing engineering. The gold mineral in an arsenic bearing high sulfur gold mine has a close symbiotic relationship with pyrite and arsenopyrite, and the recovery rate of concentrate gold is not ideal in the actual production process. In order to improve the recovery rate of concentrate gold and take into account …
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Selective sulphide concentrates with low arsenic content were tried to be produced by froth flotation. Individual concentrates of Pb, Zn and Cu assayed 67.54% Pb, and 61.49% Zn and 23.31% Cu where corresponding recoveries were 73.0% and 77.1% and 38.7%, respectively. Arsenic contents were less than 2000 ppm in the lead and zinc concentrates.
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In this study beneficiation of a sulphide ore from the Gumushane-Black Sea Region of Turkey was investigated. Detailed flotation studies were carried out with the ore sample which contained 2.95% Pb, 6.72% Zn and 0.32% Cu.
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Mineral processing and extractive metallurgical operations have created and are creating appreciable arsenic bearing wastewater and waste solid products that have to be …
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History. Arsenic was known in the form of certain of its compounds long before it was clearly recognized as a chemical element. In the 4th century bce Aristotle wrote of a substance called sandarache, now believed to have been the mineral realgar, a sulfide of arsenic. Then, in the 1st century ce, the writers Pliny the Elder and Pedanius …
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2. Nickel sulfide deposits. Nickel sulfide deposits are found on most continents, however major deposits are found in Russia, Australia, Canada, and Southern Africa (Hoatson, Jaireth, and Jaques Citation 2006).Canada and Russia possess the largest resources of nickel sulfides, followed by Australia and South Africa; however, Australia …
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In this article mineralogical analysis data are employed to corroborate the prevailing theories on the Molai ore body genesis and formation as well as to assist in developing an economic ...
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low arsenic contents from a complex sulphide ore employing non-toxic depressants to achieve selectivity. Materials and methods
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The technological processing flowsheet for gold-bearing ores varies widely. The choice of a particular technological flowsheet depends on several factors, including the nature of the gold in the ore, especially its size and chemical composition, the nature of the minerals associated with the gold, the presence of other valuable components in the ore, …
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