iron leaching from molybdenum sulphide

Metal Sulfide Mining Save Our Sky Blue Waters

Molybdenum, Nickel Precious Metals Mined with Sulfides Gold, Silver, Platinum Metal Sulfide Mining Typical Copper Sulfide Deposit 3 5 sulfide minerals 0 5 1 0 copper sulfides Iron Pyrite FeS 2 most common sulfide mineral Nickel Sulfide Deposits Voisey s Bay ore 15 Ni sulfide, 10 Cu Metals Leaching neutral and high

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molybdenum beneficiation ferric chloride leaching

mining molybdenum beneficiation ferric chloride leaching Lead Sulphide, Lead Sulphide Suppliers and Manufacturers at About 17 of these are sulfide, 17 are mineral separator, and 11 are other metals molybdenum beneficiation ferric chloride leaching cement plant crusher for lizenithne dry iron , The molybdenum leach plant at Teck

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EXTRACTING METALS FROM SULFIDE ORES

Another example is the treatment of ores containing copper sulfide chalcocite and copper iron sulfide chalcopyrite, together with molybdenum disulfide molybdenite The usual practice is to float both copper and molybdenum minerals in the first stage, leaving iron

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Calcium Sulfide Precipitation of Mercury From Gold Silver

CALCIUM SULFIDE PRECIPITATION OF MERCURY FROM GOLD~SILVER CYANIDE~LEACH SLURRIES By W W Slmpson,1 W L Staker,1 and R G Sandberg2 ABSTRACT During cyanidation of mercury bearing gold silver ores, significant amounts of mercury are extracted

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Leaching of nickel molybdenum sulfide ore in membrane

Leaching of nickel molybdenum sulfide ore in membrane biological reactor CHEN Jia wu 1, 2 , GAO Cong jie 1 , ZHANG Qi xiu 1 , XIAO Lian sheng 1 , ZHANG Gui qing 1 1 School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China 2

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Iron Control in Hydrometallurgy SGS

IRON AS AN OXIDANT TO LEACH METAL SULPHIDES The role of ferric iron as an oxidant during the acidic leaching of metal sulphides has been known for decades The sulphide is oxidized in a roaster prior to being subjected to a sulphuric acid leach However, over the years, several

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molybdenum beneficiation ferric chloride leaching

molybdenum beneficiation plant in ferric chloride leaching barite processing plant beneficiation crushing machine in india , iron ore beneficiation plant online offers from china South Jinqiao Area,Pudong New Area, Shanghai, China More molybdenum beneficiation plant in ferric chloride leaching

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Leaching of nickel molybdenum sulfide ore in membrane

The leaching kinetics of molybdenum, nickel and iron from metalliferous black shale shows that the leaching rate is controlled by a chemical reaction through a layer on the unreacted shrinking core

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RECOVERY OF MOLYBDENUM FROM ROASTED COPPER SLAGS

the leaching process and iron is oxidized to hematite to permit selective leaching of the molybdenum values During oxidation, the iron silicate is converted to ferric oxide, ferrous oxide and cristo bolite Thus, the molybdenum is released from the iron spinel phase type and also is oxi

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Bioleaching

Sulfidic iron ores can be added to speed up the process and provide a source of iron Bioleaching of non sulfidic ores by layering of waste sulfides and elemental sulfur, colonized by Acidithiobacillus spp , has been accomplished, which provides a strategy for accelerated leaching of materials that do not contain sulfide minerals

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Bioleaching

Bioleaching is the extraction of metals from their ores through the use of living organisms This is much cleaner than the traditional heap leaching using cyanide Bioleaching is one of several applications within biohydrometallurgy and several methods are used to recover copper, zinc, lead, arsenic, antimony, nickel, molybdenum, gold, silver, and cobalt

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Up gradation of MoO3 and separation of copper, iron, zinc

Mar 14, 2012 Improvement and up grading of the molybdenum content from ores or any other resources to meet the world wide demand for molybdenum metal is an important task these days We propose a leaching process to control and separate the other elements like copper, iron and zinc from molybdenum oxide, as well as improve the molybdenum metal content

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SELECTIVE LEACHING

Gold alloys with copper or Sulfide solutions, human saliva Copper, silver silver Molten salts Chromium, iron, molybdenum High nickelalloys and tungsten Medium andhigh carbonsteels Oxidizing atmospheres, hydrogen at high Carbondecarburization Chapter8: Selective Leaching page 8 12

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METHOD OF LEACHING MOLYBDENUM FROM SULFIDE

May 07, 2015 Disclosed is a method of leaching molybdenum Mo from the sulfide mineral containing molybdenum Mo and copper Cu through the electrolytic oxidation scheme The method includes dipping the sulfide

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MOLYBDENUM, FERROMOLYBDENUM, AND AMMONIUM

Molybdenum metal is a refractory metal used as an alloying agent in steels, cast irons, and superalloys 3 Ferromolybdenum is an alloy of iron and molybdenum used primarily as an alternative additive in producing alloy steels, cast irons, and nonferrous alloys The two most common grades of ferromolybdenum are low carbon and

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Molybdenum Beneficiation Ferric Chloride Leaching

molybdenum beneficiation plant in ferric chloride leaching The molybdenum leach plant at Teck Highland Valley Copper Partnership leaches Molybdenum is a metal combined with iron for most steel making the potential for chlorine gas leaks from the old piping, or newer piping made of a

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GUIDELINES FOR METAL LEACHING British Columbia

and the precipitation of ferric iron ARD occurs when the resulting acidity is entrained by water Although ARD has received most of the attention, the primary source of toxicity are metals Elevated metal leaching is associated with acidic drainage due to high metal solubility and sulphide weathering rates under acidic conditions

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Sulphuric acid leaching of zinc and copper from Nigerian

sulphuric acid for the leaching of zinc and copper in the presence of hydrogen peroxide, considering influencing parameters such as concentration of hydrogen peroxide, leaching time, particle diameter and stirring speed Experimental mode Materials The complex sulphide ore used in this study was obtained

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Molybdenum Beneficiation Ferric Chloride Leaching

molybdenum beneficiation plant in ferric chloride leaching The molybdenum leach plant at Teck Highland Valley Copper Partnership leaches Molybdenum is a metal combined with iron for most steel making the potential for chlorine gas leaks from the old piping, or newer piping made of a

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Bacterial leaching of ores and other materials

Bacterial leaching of ores and other materials R are able to oxidize sulfide and some heavy metals mainly iron but also copper, zinc, molybdenum and presumable some other metals in the form of sulfidic heavy metal minerals which are of very low solubility in water, practically insoluble These oxidations result in a solubilization of the

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Zinc Pressure Leaching ZPL Zinc Metalcess

Zinc pressure leaching ZPL treats zinc concentrate directly in the autoclave where specific temperature and oxygen partial pressure is given to leach zinc and generates zinc sulfate solution while sulfur, lead and iron remain in the residue leaching residue

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Caserones Copper and Molybdenum Deposit, Chile Mining

Dec 30, 2014 The ore is leached with sulphuric acid resulting in a solution containing dissolved copper Copper iron is selectively removed from the solution and copper electrodes are produced through solvent extractive electrolytic winning SX EW process The sulphide ore will be treated in the concentrator plant resulting in copper and molybdenum

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Leaching of Copper Sulphides SAIMM

copper sulphide leaching options as alternatives to the more conventional pyrometallurgical processing route of copper sulphides Three copper sulphide leaching and refining processes are discussed: total pressure oxidation, ferric sulphate leaching and copper chloride leaching The effect of mineralogy

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Leaching of nickel ­molybdenum sulfide ore in membrane

efficient leaching of Mo include: 1 leaching bacteria with higher resistivity to the to xicity of Mo, and 2 controll ing Mo concentration In this work, the bioleaching of nickel­ molybdenum sulfide or e by the sulfolobus metallics in a membrane bioreator system is studied

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The selective leaching and separation of molybdenum from

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 The activation energy of the leaching reaction was found to be approximately 9 21 kJ/mol

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METHOD OF LEACHING MOLYBDENUM FROM SULFIDE

May 07, 2015 Disclosed is a method of leaching molybdenum Mo from the sulfide mineral containing molybdenum Mo and copper Cu through the electrolytic oxidation scheme The method includes dipping the sulfide

Get Price

Metal Sulfide Mining Save Our Sky Blue Waters

Molybdenum, Nickel Precious Metals Mined with Sulfides Gold, Silver, Platinum Metal Sulfide Mining Typical Copper Sulfide Deposit 3 5 sulfide minerals 0 5 1 0 copper sulfides Iron Pyrite FeS 2 most common sulfide mineral Nickel Sulfide Deposits Voisey s Bay ore 15 Ni sulfide, 10 Cu Metals Leaching neutral and high

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Model Hydrodesulfurization Catalysts: Solid State

Model Hydrodesulfurization Catalysts: Solid State Synthesis and Characterization of Iron Containing Molybdenum Sulphide M A VILLA GARCIA Dpto Quimica Organometcilica, Facultad de Quimica, Universidad de Oviedo, Oviedo 33071 the second metal to the molybdenum sulfide

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1 J W Blossom, Molybdenum, from Minerals Yearbook

1 J W Blossom, Molybdenum, from Minerals Yearbook Volume 1 Metals and Minerals, U S Bureau of Mines, 1992, p 849 Ferromolybdenum is an alloy of iron and molybdenum used primarily as an alternative additive in producing alloy steels, Molybdenite is recovered from either primary molybdenite or copper sulfide ore by flotation, after

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Molybdenum Processing imoa info

Flotation separates the metallic minerals from the gangue this way and in the case of copper/ molybdenum ores separates molybdenite from copper sulphide The resulting MoS 2 concentrate contains between 85 and 92 MoS 2 Further treatment by acid leaching can be used to dissolve impurities like copper and lead if necessary

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molybdenum beneficiation ferric chloride leaching

mining molybdenum beneficiation ferric chloride leaching Lead Sulphide, Lead Sulphide Suppliers and Manufacturers at About 17 of these are sulfide, 17 are mineral separator, and 11 are other metals molybdenum beneficiation ferric chloride leaching cement plant crusher for lizenithne dry iron , The molybdenum leach plant at Teck

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US Patent for Leaching cobalt, molybdenum, nickel, and

An aqueous ammonia and ammonium salt leach solution is contacted with spent catalyst particles Another leaching process is disclosed in Chemical Abstracts, 94: 178649x A spent catalyst, containing aluminum, vanadium, nickel, cobalt, and molybdenum, was leached with ammonia and ammonium salts, at a temperature greater than 110 degree

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PDF Hydrometallurgy of lead ResearchGate

Hydrometallurgy of lead For those concentrates with low iron sulfide contents, however, good results can be obtained by adding iron sulfides to the reaction mixture nitrate leaching of

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The selective leaching and separation of molybdenum from

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 The activation energy of the leaching reaction was found to be approximately 9 21 kJ/mol

Get Price

RECOVERY OF MOLYBDENUM FROM ROASTED COPPER SLAGS

the leaching process and iron is oxidized to hematite to permit selective leaching of the molybdenum values During oxidation, the iron silicate is converted to ferric oxide, ferrous oxide and cristo bolite Thus, the molybdenum is released from the iron spinel phase type and also is oxi

Get Price

Leaching of nickel molybdenum sulfide ore in membrane

The leaching kinetics of molybdenum, nickel and iron from metalliferous black shale shows that the leaching rate is controlled by a chemical reaction through a layer on the unreacted shrinking core

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Biogenic Sulphide Reagent in Hydrometallurgy

Current plants in operation and under construction range in sulphide demand from 50 kg/day to 3 7 tonnes/day, with the feasibility of larger plants with sulfide demands ranging from 6 to 43 tonnes/ day under review Biogenic sulfide reagent can also be considered for other applications in hydrometallurgy and mineral processing

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Sherritt International Operations Technologies

Leaching of nickel copper matte and recovery of platinum group metals Sherritts matte leach process uses sulphuric acid leaching in a combination of atmospheric and/or pressure leaching steps to quantitatively dissolve nickel and copper in nickel copper matte and produce a high grade platinum group metal PGM concentrate for refining

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Leaching of impurities for the up gradation of molybdenum

Aug 01, 2008 The use of molybdenum oxide containing copper for steel making has deleterious effects on the mechanical properties of produced alloyed steel Therefore, a process has been proposed for simultaneous up gradation of molybdenum oxide and recovery of copper using controlled sulphuric acid leaching and cementation by scrap iron

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Model Hydrodesulfurization Catalysts: Solid State

Model Hydrodesulfurization Catalysts: Solid State Synthesis and Characterization of Iron Containing Molybdenum Sulphide M A VILLA GARCIA Dpto Quimica Organometcilica, Facultad de Quimica, Universidad de Oviedo, Oviedo 33071 the second metal to the molybdenum sulfide

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Molybdenum Treatment at Brenda Mines

Molybdenum Treatment at Brenda Mines Bernard C Aubé1 and John Stroiazzo2 ABSTRACT Brenda Mines, located 22 km Northwest of Peachland in British Columbia, Canada was an open pit copper molybdenum mine which closed in 1990 after 20 years of operation The

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Oxidative Hydrometallurgy of Sulphide Minerals

oxidative leaching with ozone is relevant in copper iron sulphide and gold and silver containing sulphides Moreover , oxidative leaching of coal containing iron sulphide might also have a positive impact on coal cleaning prior to its use in energy related applications The hydrometallurgy of different sulphide minerals will be treated

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Sulphide Leaching Mineral Processing Metallurgy

Methods of leaching sulphide ores can be: in absence of oxidizing agents in presence of oxidizing agents Bacterial leaching Absence of oxidizing agents Acid leaching: Dilute acids dissolve some metal sulphides with liberation of H2S, e g ZnS + 2H+ ^ Zn2+ + H2S Three types of sulphides can be encountered Completely soluble sulphides: Zns, CoS, NiS, FeS Slightly soluble, e g FeS2

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How is Molybdenum Extracted SAMaterials

In order to ensure the quality of molybdenum concentrates, we need to further separate copper, lead, iron and other metal minerals and calcium oxide and carbon minerals from molybdenum concentrate, can use sodium sulfide, cyanide to inhibit iron copper and impurities Smelting process of molybdenum

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MOLYBDENUM, FERROMOLYBDENUM, AND AMMONIUM

Molybdenum metal is a refractory metal used as an alloying agent in steels, cast irons, and superalloys 3 Ferromolybdenum is an alloy of iron and molybdenum used primarily as an alternative additive in producing alloy steels, cast irons, and nonferrous alloys The two most common grades of ferromolybdenum are low carbon and

Get Price

US8268037B2 Recovery of molybdenum from molybdenum

The invention relates to a method of recovering molybdenum from a molybdenum bearing sulfide material The material is contacted with a leaching solution in the presence of iron compounds and mesophilic or thermophilic iron oxidizing microorganisms and subsequently, a leaching process is performed by controlling the molar ratio of dissolved ferric iron to dissolved molybdenum

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SELECTIVE LEACHING

Gold alloys with copper or Sulfide solutions, human saliva Copper, silver silver Molten salts Chromium, iron, molybdenum High nickelalloys and tungsten Medium andhigh carbonsteels Oxidizing atmospheres, hydrogen at high Carbondecarburization Chapter8: Selective Leaching page 8 12

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Recovery of Molybdenum from Oxidized Ore

Table of ContentsLeachingCharcoal StrippingEvaporation and Crystallization The Climax ore body is basically a sulfide deposit capped by an oxidized zone No secondary enrichment is present As oxidation occurred the molybdenum from the molybdenite immediately reprecipitated in place with the iron minerals The molybdenum bearing minerals in the oxidized zone were identified as geothite

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RU2439178C2 Extraction of molybdenum from sulphide

Leaching stage b is performed at control of molar ratio of dissolved ferric iron to dissolved molybdenum and it is assumed equal at least to 6:1, preferably at least to 7:1 and after leaching there performed is stage of c molybdenum extraction at least from one solid and liquid residue of the leaching process

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US Patent for Leaching cobalt, molybdenum, nickel, and

An aqueous ammonia and ammonium salt leach solution is contacted with spent catalyst particles Another leaching process is disclosed in Chemical Abstracts, 94: 178649x A spent catalyst, containing aluminum, vanadium, nickel, cobalt, and molybdenum, was leached with ammonia and ammonium salts, at a temperature greater than 110 degree

Get Price

Leaching of nickel ­molybdenum sulfide ore in membrane

efficient leaching of Mo include: 1 leaching bacteria with higher resistivity to the to xicity of Mo, and 2 controll ing Mo concentration In this work, the bioleaching of nickel­ molybdenum sulfide or e by the sulfolobus metallics in a membrane bioreator system is studied

Get Price

Pyrite

Pyrite remains in commercial use for the production of sulfur dioxide, for use in such applications as the paper industry, and in the manufacture of sulfuric acid Thermal decomposition of pyrite into FeS ironII sulfide and elemental sulfur starts at 540 °C 1,004 °F at

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