Depression effect of pseudo glycolythiourea acid in flotation
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
اقرأ أكثرFlotation separation of molybdenite from chalcopyrite using ferrate…
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
اقرأ أكثرSelective flotation of Cu-Mo sulfides using dithiothreitol as an
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
اقرأ أكثرThe application of superconducting magnetic separation in …
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
اقرأ أكثرSolvent extraction of Cu, Mo, V, and U from leach solutions of copper
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
اقرأ أكثرMetals | Free Full-Text | A Review of Recent Advances in
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
اقرأ أكثرMetals | Free Full-Text | Flotation Separation of Chalcopyrite and
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
اقرأ أكثرMineralogical Prediction on the Flotation Behavior of Copper and …
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
اقرأ أكثرThe effect of sodium hydrosulfide on molybdenite flotation as a
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
اقرأ أكثرaYIRRBU2410
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
اقرأ أكثرEvaluation of l-cysteine as an eco-friendly depressant for the
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
اقرأ أكثرSelective flotation of Cu-Mo sulfides using xanthan gum as a …
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
اقرأ أكثرMolybdenite flotation from copper/molybdenum concentrates …
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
اقرأ أكثرAero® NR-7361 DEPRESSANT | Solvay
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
اقرأ أكثرUtilization of acetic acid-[(hydrazinylthioxomethyl)thio]-sodium as …
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
اقرأ أكثرSelective separation of copper-molybdenum sulfides using humic …
The flotation separation of copper-molybdenum sulfides generally relies on the use of toxic and hazardous depressants such as cyanides, sodium …Web
اقرأ أكثرProcess for separating molybdenite from a molybdenite-containing copper
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
اقرأ أكثرFlotation separation of copper–molybdenum sulfides using …
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
اقرأ أكثرDescussion on the mechanism of seperation of copper and molybdenum …
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
اقرأ أكثرThe fate of molybdenum in the residues of a Chilean copper ore
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
اقرأ أكثرEvaluation of the replacement of NaCN with depressant mixtures …
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
اقرأ أكثرSuperconducting High-Gradient Magnetic Separation
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
اقرأ أكثرA process mineralogy approach to optimize molybdenite flotation …
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
اقرأ أكثرRelationships between a Porphyry Cu-Mo Deposit, Base and …
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
اقرأ أكثرSeparation of Molybdenum and Copper in Porphyry Deposits: …
To understand this metal separation and the geochemical process of molybdenite mineralization, we investigated fluid inclusions by microthermometry, Raman spectroscopy, and laser ablation inductively couple plasma mass spectrometry (LA-ICP-MS) microanalysis in low- and high-grade quartz veins of both mineralization stages.Web
اقرأ أكثرCopper and Molybdenum Separation Process
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
اقرأ أكثرFlotation separation of molybdenite from chalcopyrite using
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
اقرأ أكثرMolybdenum Ore Processing by Flotation
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
اقرأ أكثرMolybdenite flotation from copper/molybdenum concentrates …
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 …Web
اقرأ أكثرUnderstanding the mechanism of froth flotation of
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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