the Mineral Park porphyry-style copper-molybde- num orebody, which occurs at the center. Currently closed, Mineral Park has produced approximately 323,000 short tons of copper, 25,000 short tons of molybdenum and 5,000,000 oz of silver since the initiation of open-pit operations in 1964 (Wilkinson et al., 1982). Mineral Park contains mineable re-Web

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

Selective separation of copper or lead-molybdenum sulphide minerals by flotation could be realized by adopting different depressant systems [2]. If molybdenite is the primary economic mineral, then depressants are usually added to depress the unwanted sulphide mineral in the ore, such as chalcopyrite, galena, and pyrite.Web

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

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

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

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

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

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

The flotation separation of copper-molybdenum sulfides generally relies on the use of toxic and hazardous depressants such as cyanides, sodium …Web

Introduction. The selective separation of copper–molybdenum sulfide minerals by flotation mostly relies on the use of various depressants. Sodium hydrosulfide, sodium sulfide, cyanide and Noke's reagent (thiophosphorus or thioarsenic compounds) are routinely used as the selective depressants of chalcopyrite (Bulatovic, 2007, Pearse, …Web

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

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

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

Molybdenite is naturally floatable and can be separated from copper sulfide mineral using froth flotation. Properties of molybdenite such as mineralogy, …Web

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

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 …Web

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

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

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

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

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

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

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

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

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

This article provides a comprehensive review of the separation methods of molybdenum and copper. It covers various separation techniques, including chemical, physical, and electromechanical methods. The article also discusses the advantages and …Web

Spread over 12,735ha, the Ann Mason copper-molybdenum project is located approximately 75km south-east of Reno and 7km west of Yerington, Nevada. ... Concentrate from the third cleaner will be pumped into the conditioning tank in the copper-molybdenum separation circuit comprising molybdenum roughers with six tank cells.Web

The separation of copper-molybdenum sulfide ore depends on the depressant type. Various organic and inorganic depressants have been used for selective depression of the targeted mineral during copper-molybdenum flotation separation (Bulatovic, 2007, Chen et al., 2013, Li et al., 2015). However, with increasing the …Web

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

replacement at an overall consumption in the range of 1-2 kg/t of molybdenum plant feed compared to 11.5 kg/t NaSH dosage. Metallurgical results indicated that AERO® NR-7361Web