Flotation separation of copper–molybdenum sulfides using …
The results of molybdenum-bearing copper concentrate flotation show that chitosan is possible to be used as a selective depressant in copper–molybdenum …Web
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The results of molybdenum-bearing copper concentrate flotation show that chitosan is possible to be used as a selective depressant in copper–molybdenum …Web
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Introduction. The Jinduicheng molybdenum mine is located in Shanxi province and currently processes ores at over 30,000 t/d.Molybdenite concentrate is recovered as the main product in two stages; first, the bulk flotation concentrate of copper, lead and molybdenite is produced, and second, the molybdenum minerals are …Web
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The copper/molybdenum concentrate is thickened and combined with the Morenci concentrate and fed to the copper/molybdenum separation flotation circuit. The circuit produces …Web
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The flotation separation of copper-molybdenum sulfides is largely achieved by depressing chalcopyrite from the Cu–Mo bulk concentrate using inorganic depressants, such as sodium sulfide/hydrosulfide, cyanides (Ansari and Pawlik, 2007, Bulatovic, 2007, Li et al., 2015, Pearse, 2005, Prasad, 1992, Wills, 2011,), and low molecular weight organic ...Web
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Porphyry copper deposits (PCDs) are some of the most important sources of copper (Cu) and molybdenum (Mo). Typically, the separation and recovery of chalcopyrite (CuFeS2) and molybdenite (MoS2), the major Cu and Mo minerals, respectively, in PCDs are achieved by two-step flotation involving (1) bulk flotation to separate Cu–Mo concentrates and …Web
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News Copper and Molybdenum Separation Process. Contact Now +86-. Published time：19 December 2022. Molybdenum is an important rare metal and strategic reserve resource, …Web
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The search for effective reagents for the flotation of non-ferrous metals from mineral raw materials is an actual problem. The article discusses the results of research on improving the technology of processing copper–molybdenum ores using a combined collector emulsion. The object of research was copper–molybdenum ore containing …Web
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The results of fluid inclusions microthermometry show that the temperature of ore-forming fluid in the copper mineralization stage (roughly 235 similar to 451 degrees C, mainly between 340 and 380 degrees C) is overall greater than that in the molybdenum stage (roughly 213 similar to 500 degrees C, mainly between 310 and 360 degrees C), …Web
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Depressants are the key to separation of copper and molybdenum, but most depressants have disadvantages of high dosage, toxicity, instability and high cost. It is necessary to further study the depression mechanism of different depressants, so as to better understand the dissolution, dissociation and adsorption behaviors of the …Web
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The development of environment-friendly organic with high selectivity and the combined use of the depressants are the research direction for copper-molybdenum separation depressants in the future. Interface adsorption of 5-amino-1,3,4-thiadiazole-2-thiol on chalcopyrite surface as flotation depressant in Cu/Mo separationWeb
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The main challenge for the selective flotation of copper and molybdenum (Cu-Mo) sulfide minerals in seawater is the formation of colloidal precipitates in strongly alkaline conditions. These precipitates hinder the selective separation of copper from molybdenum minerals in seawater by lowering the floatability of Cu-Mo sulfide minerals.Web
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Introduction. Molybdenite (MoS 2) is the main source of molybdenum which plays a significant role in the modern society with its principal use as a ferro-alloy in iron and steel industries (Dutta and Lodhari, 2018).Molybdenite is often associated with copper sulfides such as chalcopyrite (CuFeS 2) and chalcocite (Cu 2 S). Conventionally, the …Web
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Separation of chalcopyrite from molybdenite is currently mainly carried out by flotation, but this process is costly because of the extensive use of inhibitors. This study briefly describes a 7.0T/100CGC low-temperature superconducting magnetic separator and discusses its separation principle as well as the effect of magnetic induction on …Web
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The flotation separation of copper-molybdenum sulfides generally relies on the use of toxic and hazardous depressants such as cyanides, sodium sulfide/hydrosulfide, Noke's reagent (Bulatovic, 2007, Li et al., 2015, Pearse, 2005, Prasad, 1992), and thioglycolic acid and its salts (Bulatovic, 2007, Poling and Liu, 1987). ...Web
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Copper sulphide flotation concentrates may contain from 0.25 to 1.00% MoS2. When such ores are milled in large tonnages the amount of molybdenum present may be substantial. Practically all major copper producers now have molybdenum recovery systems. The Copper/Moly Separation FlowsheetWeb
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The concentrate was then subjected to copper-molybdenum separation. The molybdenum concentrate was further upgraded in five additional cleaner flotation stages. In cleaner flotation stages 2 through 5, lime was added to maintain a pH of 11.5 and sodium hydrosulfide was added to maintain an oxidation-reduction potential of -400 mv in the …Web
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Limited copper-molybdenum separation testing is available, and therefore a typical molybdenum separation circuit recovery of 90% is estimated. Molybdenum rougher flotation tails or copper concentrate would be thickened, filtered and loaded onto weighed trucks for transport by rail to the port. Five stages of cleaning would be required …Web
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Porphyry Cu-Mo deposits, which are the most important sources of copper and molybdenum, are typically processed by flotation. In order to separate Cu and Mo minerals (mostly chalcopyrite and molybdenite), the strategy of depressing chalcopyrite while floating molybdenite has been widely adopted by using chalcopyrite depressants, …Web
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Therefore, the bulk concentrates processes characteristics of a higher grade of molybdenum but a lower grade of copper. The bulk concentrate, which was obtained from the China Molybdenum Co., Ltd, with 0.95% Cu and 7.23% Mo collected from a day shift, was used for the flotation separation of copper-molybdenum sulphides in all of the …Web
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A molybdenum (Mo) concentrate assaying 6.00% copper (Cu) and 19.01% Mo was magnetically sorted using a diamond-shaped steel rod medium mesh at a feed concentration of 20% and a pulp flow rate of 5 L/min from a Cu-Mo flotation concentrate with 88% of particles smaller than 23 mWeb
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The sources of molybdenum are: 1) primary molybdenum in the original molybdenum ore; 2) by-product of complex molybdenum- copper ore; 3) molybdenum recovered …Web
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The copper ore in Chilean copper porphyry deposits is often associated with molybdenum minerals. This copper–molybdenum (Cu–Mo) sulfide ore is generally mined from various locations in the mining site; thus, the mineral composition, oxidation degree, mineral particle size, and grade vary. Therefore, in the mining operation, it is common to …Web
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AERO® NR-7361 depressant is a sulfide mineral depressant designed for copper-molybdenum separation. AERO® NR-7361 depressant is a sulfide mineral depressant designed for copper-molybdenum separation. Skip to content 160 years ... Copper: Modifiers Cu: Chemical categories. Chemical category Chemical family Chemical …Web
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Copper-molybdenum Separation Process Problems. 1. Drug residues. The copper-molybdenum mixed flotation process entrains a large amount of residual collector and affects the separation of copper and molybdenum. Increase the analysis of the mineral surface and remove the drug from the mixed concentrate, which increases the …Web
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Separation of Molybdenum and Copper in Porphyry Deposits: The Roles of Sulfur, Redox, and pH in Ore Mineral Deposition at Bingham Canyon | Economic …Web
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2.Copper-molybdenum mixed concentrate separation process . For the flotation separation of copper-molybdenum mixed concentrate, it can usually be divided into 3 steps. ① Pretreatment. The main purpose of pretreating the copper-molybdenum mixed concentrate is to remove the residual collectors in the slurry in the most …Web
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Typically, the separation and recovery of chalcopyrite (CuFeS 2) and molybdenite (MoS 2 ), the major Cu and Mo minerals, respectively, in PCDs are achieved by two-step flotation …Web
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Pages 180-191 | Received 03 Nov 2020, Accepted 08 Feb 2021, Published online: 13 Apr 2021. For the first time, χ-Al 2 O 3 was investigated as a sorbent for the simultaneous separation of copper …Web
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1. Introduction. Copper and molybdenum belong to strategic metals in many countries, most of which were found in sulfide ores. In most cases, the sulfide ores containing molybdenum-copper-iron elements are usually associated in the same deposit, and the natural floatability of molybdenum sulfide ores (mainly molybdate) and copper …Web
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After separation of the copper ions, other metal ions, such as nickel(II) and cobalt(II) may be extracted . The process was realized by shaking in a mechanical shaker at 25 °C. Optimum equilibration time was determined for this system. ... This is a kind of deposit of copper, molybdenum and other rare metals for future generations. In such ...Web
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Depressants are the key to separation of copper and molybdenum, but most depressants have disadvantages of high dosage, toxicity, instability and high cost. It is necessary to further study the depression mechanism of different depressants, so as to better understand the dissolution, dissociation and adsorption behaviors of the …Web
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This site was used as a case study limited to the feed and products of the copper-molybdenum separation circuit, in which process mineralogy might improve the quality of the molybdenum concentrate thorough diagnostic analysis of key flowsheet streams. The undesirable presence of copper in the molybdenum concentrate was …Web
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copper flotation circuits and were taken before entering the molybdenum circuit. The Morenci copper/molybdenum concentrate analyzed 0.2%-0.4% Mo and 28%-33% Cu, while the grade of the Copperton copper/molybdenum concentrate was 2.5%-4.1% Mo and 32%-34% Cu. The concentrates were received at 20%-35% solids. The particle size data …Web
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This study examines the fate of molybdenum in the processing of copper ore in a Chilean processing plant. Molybdenum shares the path of Cu from grinding and …Web
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The leaching using oxygen comprises the oxidation of molybdenum in the solution to molybdenum oxide at a temperature >150°C . The production of rhenium in various acid and alkaline media by oxidizing agents from blast furnace dust, as well as the production of zinc, copper, germanium, and molybdenum, was studied by T. Helbig et al. .Web
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The tests results show that molybdenum concentrate with Mo grade of 7.4% and recovery of 43.6%, copper concentrate with Cu grade of 33.0% and recovery of 93.5% could be …Web
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The separation of copper-molybdenum sulfides is commonly accomplished through Cu-Mo bulk flotation, followed by selective flotation of molybdenite using inorganic copper depressants, such as sodium sulfide and cyanide [Pearse, 2005, Ansari and Pawlik, 2007, Yin et al., 2017a, Yin et al., 2017b].Web
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