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Aug 29, 2013 A method for leaching copper and molybdenum from an ore, residue andor concentrate containing such, in which more than 1 of the total molybdenum is present as a sulfide and in which more than 1 of the total copper is present as an oxide, the method comprising the steps of Exposing the ore, residue andor concentrate to an aqueous solution of chlorine I-based oxidising species
Leaching Method In Copper Beneficiation- DMX Mining. Leaching method in copper beneficiation copper leaching beneficiation latest technology innovation in the copper industry in the last 65 years has ing heap leaching and iron precipitation tech niques that beneficiation solution of copper and leaching agent 2050 ore to about 25 mm and grinding accomplish .
Jan 01, 2011 The removal of molybdenum from a copper ore concentrate by sodium hypochlorite leaching was investigated. The results show that leaching time, liquid to solid ratio, leaching temperature, agitation speed, and sodium hypochlorite and sodium hydroxide concentrations all have a significant effect on the removal of molybdenum.
The grade of copper in the residue was 21.84, with a recovery 99.93. The technology of selective electro-oxidation leaching of molybdenum and recovery of copper from complex molybdenite concentrate is an effective separation method. The diffusion control model can be used to describe the process of leaching of molybdenum.
A method of removing copper and recovering molybdenum trioxide from an ammoniacal solution containing molybdenum obtained by roasting at a temperature below about 600 C. a copper containing molybdenum ore concentrate and leaching the roasted concentrate with an aqueous ammoniacal solution containing at least 2 moles ammonia per mole of molybdenum comprising the
A hydrometallurgical process is provided for the recovery of molybdenum values from a molybdenum disulfide concentrate containing copper. The process comprises forming an aqueous slurry of finely divided molybdenum concentrate of carbonates and hydroxides of alkali metals, and pressure leaching the slurry in the presence of oxygen at an elevated temperature and pressure for a time sufficient ...
Los Bronces produced 221,800t of copper in 2011 and 221,400t in 2010. Copper cathode comprised 38,400t, while copper in sulphate accounted for 4,600t. Copper concentrate production during 2011 was 178,800t. The mine also produced 948t of molybdenum concentrate during the year.
Dec 30, 2014 The copper-molybdenum mine is scheduled to produce 180,000t of copper and 3,000t of molybdenum for the first ten years. It is estimated to produce 3.54 million tonnes of copper and 87,000t of molybdenum during its mine life of 28 years. The project is expected to create approximately 5,000 construction and 1,500 operational jobs.
A procedure for recovery and separation of molybdenum VI and copper II from acid leaching residual solution of Chilean molybdenite concentrate by solvent extraction is studied. The process for the recovery of metals was carried out in three stages 1.
A method of leaching copper from a copper sulfide ore which includes adding a potential adjustment agent for lowering a potential of a leaching solution obtained after leaching copper from the copper sulfide ore by using iodide ion and iron III ion the leaching solution being stored in a tank for storing the leaching solution.
In 2003, a high-temperature pressure leaching circuit to treat copper sulfide concentrates was commissioned at the coppermolybdenum operation at Bagdad, AZ.
By the proposed leaching and cementation process, the molybdenum oxide could be upgraded to 80 recovery 99.50 and copper could be recovered as metal powder.
Molybdenum resources around the world are mainly associated with porphyry copper ores. Molybdenite MoS2 is the main Mo mineral that has rhenium in its crystal lattice. This paper investigates the recovery of rhenium and molybdenum from a molybdenite concentrate using a hydrometallurgical treatment method.
While leaching gold, they will compete with gold for cyanide and oxygen, thus hindering the dissolution of gold and reducing the cyanidation efficiency. Solution. For this kind of gold ore, different methods should be adopted according to the content of copper and zinc.
Sep 26, 2019 After crushing oxide-type copper ores, such as azurite 2CuCO 3 CuOH3, brochantite CuSO 4, chrysocolla CuSiO 3 2H 2 O and cuprite Cu2O, dilute sulfuric acid is applied to the surface of the material on leaching pads or in leaching tanks. As the acid trickles through the ore, it combines with the copper, producing a weak copper ...
Sahu and Chmielowiec identified the cell voltages in their cell as 0.06 volts for rhenium sulfide, 0.33 volts for molybdenum sulfide, and 0.45 volts for copper sulfide. For most of our reactions, we apply 0.5 or 0.6 volts, so that the three sulfides are together reduced to metallic, rhenium, molybdenum and copper
The purification of molybdenite concentrates by this method is feasible and the best results were obtained by leaching the concentrate with the stoichiometric concentration of H 2 SO 4 and 0.12 M Na 2 Cr 2 O 7 solution for 90 min at 100 C. Under these conditions about 95 of the copper was dissolved with little dissolution of molybdenum. Get Price
Bioleaching Introduction, Methods, Application, Copper, Microorganisms, and Processes Introduction to Bioleaching Leaching process was first observed in pumps and pipelines installed in mine pits containing acid water. This process was later on employed for recovering metals from ores containing low quantity of the metal. Presently certain metals from sulfide ores and other ores are ...
Up-Gradation of MoO3 and Separation of Copper, Iron, Zinc from Roasted Molybdenum Ore by a Leaching Process 393 Brazilian Journal of Chemical Engineering Vol. 30, No. 02, pp. 391 - 397, April - June, 2013 oxide with improved content was obtained by a
Leaching amp Electro-Winning Method A. Leaching Oxide ore and tailings are leached by a weak acid solution, producing a weak Copper Sulfate solution. B. Electro-Winning SXEW The copper-laden solution is treated and transferred to an electrolytic process tank.
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