منتج
أكثر من 30 نوعًا من المنتجات تغطي التعدين وسحق البناء والطحن الصناعي ومواد البناء الخضراء وغيرها من المجالات
oxide ores sulfide
Why are the sulfide ores generally converted to an oxide and then ...
2018年6月27日 Usually the sulphide ore is converted to oxide before reduction. Oxides are easier to reduce. Thus isolation of metals from concentrated ore involves two major
获取价格
Copper Ore Types: Sulfides vs. Oxides - Investing News Network
2023年5月2日 There are two main types of copper ore that are of interest: copper oxide ores and copper sulfide ores. Both ore types can be economically mined, but they are
获取价格
Sulfide mineral - Wikipedia
The sulfide minerals are a class of minerals containing sulfide (S ) or disulfide (S2 ) as the major anion. Some sulfide minerals are economically important as metal ores. The sulfide class also includes the selenides, the tellurides, the arsenides, the antimonides, the bismuthinides, the sulfarsenides and the sulfosalts. Sulfide minerals are inorganic compounds.
获取价格
Sulfide Ore - an overview ScienceDirect Topics
Primary nickel is produced from two very different ores: sulfide ores and laterite (oxide) ores. Sulfide ores, which are generally mined from underground and often found in
获取价格
12.3: Metals and Ores - Chemistry LibreTexts
2022年8月10日 Most commercial ores are sulfides, especially chalcopyrite (CuFeS 2), bornite (Cu 5 FeS 4) and, to a lesser extent, covellite (CuS) and chalcocite (Cu 2 S). Cu 2 S, is converted into oxides:
获取价格
ROASTING OF SULFIDE MINERALS - Wiley Online Library
Roasting is essentially a surface reaction where the oxide layer is formed first and continues to remain as a porous layer through which oxygen can pass into the still unreacted inner
获取价格
A fresh approach to sulfide ores - Canadian Institute of
2017年6月26日 Surface oxide deposits are depleting and copper miners are turning their attention to untapped sulfide ores found deeper underground. However, sulfides require more expensive processing
获取价格
Current Status of Copper-Ore Processing: A Review
2021年9月8日 For oxide copper ore and some sulfide ores, a combined flotation–hydrometallurgy technology is applied to produce copper concentrate and
获取价格
Recovery of gold from sulfide refractory gold ore: Oxidation
2021年4月1日 The major chemical components of the sulfide refractory gold ore and pyrite are shown in Table 2. The sulfide refractory gold ore (SRGO) contains 30.34% Fe, 22.23% S, 11.19% As, 3.24% Al and 60.25 g/t Au. The total content of Fe, As and S is up to 63% of the sulfide refractory gold ore. The pyrite contains 43.36% Fe and 41.26% S.
获取价格
Sulfide Ore - an overview ScienceDirect Topics
Primary nickel is produced from two very different ores: sulfide ores and laterite (oxide) ores. Sulfide ores, which are generally mined from underground and often found in conjunction with copper-bearing ores, contain copper–iron sulfides in association with nickel–iron sulfides. The principal sulfide mineral of nickel is pentlandite ...
获取价格
Sulphidization flotation for recovery of lead and zinc from oxide ...
2005年10月1日 A new flowsheet was developed to recover the valuable minerals from oxide or oxide-sulfide ores of lead and zinc. The flowsheet consisted of flotation of sulfide minerals, desliming and sulphidization-flotation of oxide minerals. The corresponding reagent system and techniques to the flowsheet were investigated. Batch and continuous
获取价格
Flotation of copper oxide minerals: A review - ScienceDirect
2022年11月1日 However, copper oxide ores tend to have the characteristics of strong surface hydrophilicity, high combination rate, fine particle size, serious mud problems, and complex mineral composition [8], [9]. Therefore, it is difficult to recover copper oxide resources efficiently by conventional copper sulfide ore separation method.
获取价格
Why are the sulfide ores generally converted to an oxide and
2018年6月27日 The concentrated ore must be converted into a form which is suitable for reduction. Usually the sulphide ore is converted to oxide before reduction. Oxides are easier to reduce. Thus isolation of metals from concentrated ore involves two major steps viz., (a) conversion to oxide, and (b) reduction of the oxide to metal.
获取价格
Differences Between Sulfides And Oxides Difference Between
Summary: Sulfides are minerals that contain sulfur. These minerals are inorganic compounds, which means that they are formed through geological rather than biological processes. These minerals are commonly found in soils with a higher temperature. Oxides are those minerals that contain oxide anions, or oxygen, with ice and quartz being the ...
获取价格
Study on Hydrometallurgical Treatment of Oxide Ores Bearing
2022年10月7日 As the depletion of zinc sulfide ores becomes more severe, investigations into the recovery of zinc from zinc oxide ores have aroused more interest. In this regard, acid-based hydrometallurgical treatment strategies have had great effectiveness. However, they are inadequate for low-grade zinc oxide ores. In this study, we examined the
获取价格
A Process for Extraction of Manganese from Manganese Oxide Ores
2023年5月30日 The reduction of manganese oxide ores by microwave heating was completed at a roasting temperature of 150°C and a roasting time of 5 min with the addition of 50% alkali lignin with the reduction sequence of MnO2 → Mn2O3 → Mn3O4 → MnO. A 97.43% leaching ratio of manganese was obtained from the roasted ore, which was
获取价格
Progress in bioleaching: fundamentals and mechanisms of
2022年10月4日 Acid leaching is applied in hydrometallurgy by using inorganic acids for the dissolution of ores, e.g., oxide ores such as limonitic laterites. Sulfuric acid can also be generated by sulfur-oxidizing bacteria or archaea if elemental sulfur is added to the process, or in the case of metal sulfides from the sulfur moiety of the mineral being ...
获取价格
Metals Free Full-Text Thermodynamic Calculations of Direct
2023年4月4日 Ryndina previously analyzed the slag from a site in the Northeast Balkans during the Neolithic period, which used a mixture of sulfide and oxide ores . Prior to smelting, the sulfide ore was roasted under oxidizing conditions to remove all sulfur [ 29 ], a process in which sulfides are converted to oxides [ 30 ].
获取价格
EXTRACTING METALS FROM SULFIDE ORES - Electrochemical
Mixed oxide and sulfide copper ores are leached following the same process stages as in Figure 4. Also, some sulfidic ores that are too lean to treat by flotation are also leached in heaps or dumps. The recovery of metals from sulfides in this way utilizes bacteria either naturally present or inoculated into the material.
获取价格Reductive Mineral Bioprocessing SpringerLink
2022年11月15日 While biomining is currently restricted to reduced (sulfide) ores, many commercially valuable metals can be found in significant concentrations in oxidised ores. These comprise laterites, polymetallic marine nodules, and ores from oxidation of sulfide deposits. Currently, these oxide ores are processed using pyro- or hydrometallurgical ...
获取价格
Leaching of Gold from an Oxide Gold Ore with Copper–Tartrate ...
2023年8月10日 The leaching behavior of gold from an oxide gold ore using copper–tartrate–thiosulfate solutions has been investigated. Experimental parameters, including temperature, initial pH, and concentrations of copper tartrate and thiosulfate, were systematically studied. The capability of gold leaching using copper–tartrate–thiosulfate
获取价格Sulphidization flotation for recovery of lead and zinc from oxide ...
2005年10月1日 In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite ...
获取价格
EXTRACTING METALS FROM SULFIDE ORES
Mixed oxide and sulfide copper ores are leached following the same process stages as in Figure 4. Also, some sulfidic ores that are too lean to treat by flotation are also leached in heaps or dumps. The recovery of
获取价格
Reductive Mineral Bioprocessing SpringerLink
2022年11月15日 While biomining is currently restricted to reduced (sulfide) ores, many commercially valuable metals can be found in significant concentrations in oxidised ores. These comprise laterites, polymetallic marine nodules, and ores from oxidation of sulfide deposits. Currently, these oxide ores are processed using pyro- or hydrometallurgical ...
获取价格
Leaching of Gold from an Oxide Gold Ore with Copper–Tartrate ...
2023年8月10日 The leaching behavior of gold from an oxide gold ore using copper–tartrate–thiosulfate solutions has been investigated. Experimental parameters, including temperature, initial pH, and concentrations of copper tartrate and thiosulfate, were systematically studied. The capability of gold leaching using copper–tartrate–thiosulfate
获取价格Sulphidization flotation for recovery of lead and zinc from oxide ...
2005年10月1日 In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite ...
获取价格
Formation of Fe-Ti oxide and Ni-Co sulfide ores by concentric
2023年9月1日 Coexisting oxide-sulfide ore formed due to the lack of S-rich wall rock assimilation. Abstract. The Panxi (ultra-)mafic intrusions are relatively small compared with world-class ore-related (ultra-)mafic intrusions, but they host several super-large Fe-Ti oxide deposits and few small Cu-Ni (PGE) sulfide deposits. ...
获取价格
Biooxidation of Gold Ores in Russia and Kazakhstan
2022年11月15日 The field contains two ore types: oxide and primary ores. Primary ores are refractory gold–arsenic sulfide ores. The Polyus CJSC Olimpiada Mine commenced development of the Olimpiada gold ore deposit in 1996.
获取价格
Comprehensive Review on Metallurgical Upgradation Processes of
2022年2月11日 The land-based resources available for the preparation of nickel mainly include nickel sulfide ore and nickel oxide ore, and the sulfide-oxide ratio in current nickel reserves is believed to be about 4:6. Sulfide ores originated from hydrothermal processes related to volcanic areas. Nickel, ...
获取价格
Progress in bioleaching: fundamentals and mechanisms of
2022年10月4日 Acid leaching is applied in hydrometallurgy by using inorganic acids for the dissolution of ores, e.g., oxide ores such as limonitic laterites. Sulfuric acid can also be generated by sulfur-oxidizing bacteria or archaea if elemental sulfur is added to the process, or in the case of metal sulfides from the sulfur moiety of the mineral being ...
获取价格
The Extraction of Copper - Chemistry LibreTexts
2019年7月12日 Sulfide ores such as chalcopyrite (\(CuFeS_2\)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper. The ores typically contain low percentages of copper and have to be concentrated before refining
获取价格
DOI 10.1007/s11015-019-00901-z - Springer
Keywords: ore, sulfides, oxides, copper, nickel, cobalt, roasting, sulfiding agent, melting, matte, ex-traction, technology. Sulfide ores and concentrates are treated predominantly by autogenic melting methods to matte [1–4]. The achievements of this technology are: implementation of the energy potential of mineral raw material;
获取价格Current Status of Copper-Ore Processing: A Review
2021年9月8日 Abstract An analysis of flowsheets for processing sulfide and oxide copper ores, reagent modes, processing equipment, and flotation indicators in some domestic and foreign processing plants and productions is carried out. Autogenous and semiautogenous mills are commonly used in the primary grinding stage in ore processing plants, which
获取价格Minerals Free Full-Text Gold Extraction from a Refractory Sulfide ...
2023年1月12日 Many gold deposits contain finely disseminated gold particles in iron sulfide minerals such as pyrite. These minerals are called refractory gold ores because of the presence of gold, which occurs either as disseminated fine gold particles—typically <1 µm [] or as fine particles of gold encapsulated in the ore host [2,3].In certain ores,
获取价格
Beneficiation of Antimony Oxide Ore: A Review - Springer
mony oxide ore is typically formed through oxidation of sulfide ore. Sulfide ore is usually oxidized to sulfates of antimony, but given that these sulfates are unstable, they are easily hydrolyzed into lower-priced antimony oxide, or can be used to generate a higher-priced anti-mony oxide, such as yellow antimony ore [8].
获取价格
The Extraction of Copper - Chemistry LibreTexts
2023年6月30日 Sulfide ores such as chalcopyrite (\(CuFeS_2\)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper. The ores typically contain low percentages of copper and have to be concentrated before refining
获取价格