Molybdenite Concentrate Copper Leachingri

  • PDF METALS RECOVERY FROM MOLYBDENITE CONCENTRATE

    May 28 2020· The results of leaching of molybdenite concentrate of J SC Almalyksky MMC are compared according to the schemes the existing calcining ammonia and

    Get Price
  • Kinetics of Copper Removal from Sulfidized Molybdenite

    The leaching of the sulfidized molybdenite concentrate for 90 min at 100 °C dissolved 96% of the copper which yielded a final concentrate with less than % Cu

    Get Price
  • Kinetics of Copper Removal from Sulfidized Molybdenite

    Aug 26 2014· Thus in the present study the pretreated sulfidized molybdenite concentrate becomes prone to easier leaching of the copper In this regard Padilla et al [] have shown that molybdenite concentrates containing high contents of copper ranging from 3 to 8 pct can be purified by this method reducing the copper content to values as low as pct in leaching with sulfuric acid sodium chloride

    Get Price
  • Leaching of copper concentrates

    copper oxides have been in common use for some time Prior to the development of the Sherritt Gordon process for nickel and cobalt in which copper is recovered as high grade copper sulfide copper sulfides were economically recovered in a hydrometallurgical process only during the leaching of waste dumps Need for Hydrometallurgical Processes

    Get Price
  • Selective copper iron dissolution from a molybdenite

    Jun 19 2001· Selective copper iron dissolution from a molybdenite concentrate using bacterial leaching Patricia Romano Department of Materials Science and Metallurgical Engineering Facultad de Ciencias Químicas Universidad Complutense de Madrid 28040 Madrid Spain

    Get Price
  • Leaching and Kinetic Modelling of Molybdenite Concentrate

    Molybdenite a mineral form of molybdenum IV sulfide MoS 2 is a byproduct of froth flotation of porphyry copper and is the main source of molybdenum widely used in steel alloys and its compounds [1] The standard process for the production of molybdenum involves roasting of molybdenite concentrate in air and subsequent reduction of the

    Get Price
  • Removal of Copper from a Molybdenite Concentrate by

    copper typically needs to be % or 2 In this study the refining of molybdenite by leaching of copper in chloride solution was investigated on a molybdenite bearing flotation concentrate containing % copper as chalcopyrite The study sought to reduce the copper concentration to a commercially acceptable minimum of % or less with

    Get Price
  • Removal of Copper from a Molybdenite Concentrate by

    copper typically needs to be % or 2 In this study the refining of molybdenite by leaching of copper in chloride solution was investigated on a molybdenite bearing flotation concentrate containing % copper as chalcopyrite The study sought to reduce the copper concentration to a commercially acceptable minimum of % or less with

    Get Price
  • The solvent extraction separation of molybdenum and copper

    Aug 01 1995· The McCabe Thiele equilibrium isotherms were built by conventional procedures [15] RESULTS AND DISCUSSION Leaching of molybdenite concentrate The residual leach solution used for solvent extraction of molybdenum and copper was obtained by dissolving 60 g of MOS2 concentrate in the acid mixture in the glass reactor

    Get Price
  • PDF METALS RECOVERY FROM MOLYBDENITE CONCENTRATE

    May 28 2020· The results of leaching of molybdenite concentrate of J SC Almalyksky MMC are compared according to the schemes the existing calcining ammonia and

    Get Price
  • Copper removal from molybdenite concentrate by sodium

    May 01 1998· Molybdenite flotation concentrate was leached with sodium dichromate sulfuric acid solutions in order to remove the copper sulfide impurities The experimental results indicated that the temperature has a large influence on the copper dissolution

    Get Price
  • Molybdenite concentrate cleaning by copper sulfation

    Nov 01 2001· CONCLUSIONS It was found that concentrated sulfuric acid leaching 190 240 C activated by microwaves in a batch type ambient pressure process decreased the copper content of the molybdenite concentrate from % to less Molybdcnite conccntrate cleaning by copper sulfation activated by microwave 1419 than h >95% sulfation in less than

    Get Price
  • Bio dissolution of Cu Mo and Re from molybdenite

    by product in copper mining and is obtained from flotation processes in which high dosages of sodium sulfide and sodium cyanide are widely used The presence of chalcopyrite in a molybdenite concentrate drastically reduces its market value Molybdenite concentrate should have less than % copper in order to meet consumer requirements

    Get Price
  • Removal of Copper from a Molybdenite Concentrate by

    About 94% of copper was removed at 80°C after 120 h of leaching with a residual copper content of % which meets the commercial requirements for molybdenite concentrates

    Get Price
  • Mesophilic and thermophilic bioleaching of copper from a

    Apr 10 2014· 1 Introduction Molybdenite MoS 2 ores are the major sources of molybdenum and rhenium on a global is frequently associated with copper sulfides and is often a by product in copper mining The bioleaching of molybdenite has generally proven to be relatively slow and with low yields Tributsch and Bennett 1981 Kelley 1986 Askari Zamani et al 2005 Askari Zamani et

    Get Price
  • leaching molybdenum method

    A method for leaching copper and molybdenum from a material selected from a group consisting of one or more of an ore residue and concentrate containing such in which more than 1 w/w of the total molybdenum is present as a sulfide and in which more than 1 w/w of the total copper is present as an oxide the method comprising the steps of

    Get Price
  • Acid Pressure Leach Process for Copper Removal

    sodium dichromate for copper leaching from a molybdenite concentrate containing % molybdenum and % copper in the form of chalcopyrite and covellite CuS About 95 % of copper was leached with little dissolution of molybdenum by sulfuric acid solution in the presence of Na2Cr2O7 for 90 min at 100 °C and a solid to liquid ratio of 1

    Get Price
  • Gold Recovery from Molybdenum Concentrate by Cyanide Leaching

    Apr 03 2018· Here we describe a cyanide leaching carbon adsorption plant designed to recover the gold from the molybdenum concentrate Process Design The molybdenum concentrate assays typically 45 percent molybdenum less than 1 percent copper chalcopyrite and percent iron chalcopyrite pyrite Gold and silver average 8 and 40 ppm respectively which at an average molybdenum concentrate

    Get Price
  • leaching molybdenum method

    A method for leaching copper and molybdenum from a material selected from a group consisting of one or more of an ore residue and concentrate containing such in which more than 1 w/w of the total molybdenum is present as a sulfide and in which more than 1 w/w of the total copper is present as an oxide the method comprising the steps of

    Get Price
  • Remove Copper from Moly by Ferric Chloride Leaching

    Aug 26 2014· Leaching experiments were performed in the temperature range of 373 K to 423 K 100 °C to 150 °C in order to determine the rate of copper dissolution from sulfidized molybdenite concentrate The other leaching variables were kept constant at kPa of partial pressure of oxygen M H 2 SO 4 and 600 rpm It is worth to note that the values of the last two variables fall within the range in which

    Get Price
  • Kinetics of copper dissolution in the purification of

    May 01 2013· The leaching of the sulfidized molybdenite concentrate in sulfate chloride oxygen media for 90 min at 100 °C dissolved 96% of the copper which yielded a final concentrate with less than % Cu Under these leaching conditions the molybdenum dissolution was negligible and iron dissolution was lower than 20%

    Get Price
  • PDF Selective copper iron dissolution from a molybdenite

    Selective copper iron dissolution from a molybdenite concentrate using bacterial leaching July 2001 Journal of Chemical Technology Biotechnology 76 7 723 728

    Get Price
  • Leaching molybdenum from a low grade roasted molybdenite

    Mar 07 2019· A technique for leaching molybdenum from low grade roasted molybdenite concentrate was proposed by the aqueous solution containing sodium chlorate and sodium carbonate The effect of molar ratio of sodium chlorate to molybdenum leaching time liquid solid ratio leaching temperature sodium carbonate concentration and agitating speed on leaching rate of molybdenum was studied

    Get Price
  • Leaching molybdenum from a low grade roasted molybdenite

    Mar 07 2019· A technique for leaching molybdenum from low grade roasted molybdenite concentrate was proposed by the aqueous solution containing sodium chlorate and sodium carbonate The effect of molar ratio of sodium chlorate to molybdenum leaching time liquid solid ratio leaching temperature sodium carbonate concentration and agitating speed on leaching rate of molybdenum was studied

    Get Price
  • Method For Leaching Of Copper And Molybdenum

    Leaching is carried out with water in a weight ratio of water and the molybdenum concentrate of EFFECT obtaining of high quality molybdenum concentrate with a low content of molybdenum copper and iron impurities with high extraction of molybdenum 2 cl 1 tbl 1 ex Remove Copper From Moly By Ferric Chloride Leaching

    Get Price

Related Posts