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 · When dealing with low grade molybdenum mineral raw materials sodium hypochlorite is a very effective oxidation leaching agent Oxidation leaching process the decomposition of sodium hypochlorite itself will slowly precipitated oxygen some other metal sulfide is sodium hypochlorite will be oxidized or hydroxide of these metal ions will generate molybdate and molybdate precipitate the

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 · Molybdenum Mo and vanadium V were effectively extracted from the spent diesel exhaust catalyst V2O5 MoO3 TiO2 by using an ammonia leaching method Meanwhile the structure of the spent catalyst carrier TiO2 was not destroyed and might be reused

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Electro oxidation leaching method it is improved by sodium hypochlorite method the method is adding molybdenite mineral slurry to the electrolytic tank has been equipped with Sodium Chloride Solution in the electro oxidation process Cl2 and anode products react with water to produce hypochlorite molybdenum sulfide hypochlorite oxidation in

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leaching process as a first step then solvent extraction was used as a second step to recovery the molybdenum from spent catalyst Raju et al 2013 Thi et al 2015 while bio method was used by Roya et al 2011 Mafi et Corresponding author Khalid M Mousa al 2012 Bioleaching follows by the leaching process molybdenum from spent

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In this article a new spent catalyst sample preparation method was implemented for the purpose of molybdenum leaching in a single step Further molybdenum and vanadium in the leach liquor were

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An improved analytical procedure has been described for the spectrophotometric determination of colloidal silica in leaching solution by means of adding fluoride to convert colloidal silica into reactive silica The method is a variation of the classical molybdenum blue method and the

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 · In this article a new spent catalyst sample preparation method was implemented for the purpose of molybdenum leaching in a single step Further

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The leaching kinetics of molybdenum showed that the reaction rate of the leaching process is controlled by Contact Supplier Method of extraction of molybdenum from FIELD petrochemical industry methods of the selective extraction of molybdenum from the solutions containing molybdenum and vanadium SUBSTANCE the invention is pertaining to

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Molybdenum Mo and vanadium V were effectively extracted from the spent diesel exhaust catalyst V 2 O 5 –MoO 3 TiO 2 by using an ammonia leaching method Meanwhile the structure of the spent catalyst carrier TiO 2 was not destroyed and might be reused The effects of ammonia NH 3 ·H 2 O concentration leaching temperature and time concentration of hydrogen peroxide H 2 O 2 and

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Abstract The processing of molybdenum uranium ore in a sulfuric acid solution using hydrogen peroxide as an oxidant has been investigated The leaching temperature hydrogen peroxide concentration sulfuric acid concentration leaching time particle size liquid to solid ratio and agitation speed all have significant effects on the process

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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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 · A method for leaching copper and molybdenum from an ore residue and or 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 and or concentrate to an aqueous solution of chlorine I based oxidising species of a

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The leaching molybdenum from low grade molybdenite concentrate has been widely investigated mainly in relation to acidic oxidative leaching for the direct extraction of molybdenum 20 21 22

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Molybdenum is a refractory metal with high boiling point and high melting point mainly used in nonferrous metallurgy oil and gas industry and is a strategic metal for industrial pharmaceutical human and plant essential elements Molybdenite is the main raw material for the extraction of molybdenum and the method of molybdenum ore treatment includes fire and wet two categories

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METHOD OF LEACHING MOLYBDENUM FROM SULFIDE May 07 2015· In the method of leaching molybdenum Mo from the sulfide mineral containing molybdenum Mo and copper Cu through the electrolytic oxidation scheme according to the present invention the leaching yield of the molybdenum Mo by changing the reaction temperature of Embodiment 2 and the result was shown in FIG 5

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Example results from Method 1313 for leaching from a coal combustion fly ash EaFA Titration curve top chromium eluate concentration lower left and chromium release with

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Polyelectrolyte extraction was proposed as a new extraction method in this study The leaching process brings molybdenum and impurities to the solution leach liquor Hence as in the case of acid washing liquor of molybdenum trioxide a separation and purification treatment is required

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Molybdenum processing preparation of the ore for use in various products Molybdenum Mo is a white platinum like metal with a melting point of 2 610 °C 4 730 °F In its pure state it is tough and ductile and is characterized by moderate hardness high thermal conductivity high resistance to corrosion and a low expansion coefficient

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A process is disclosed to extract metal values selected from the group consisting of cobalt molybdenum nickel tungsten and vanadium from metal containing particles such as spent hydroprocessing catalyst particles containing carbon residue In this process the spent catalyst particles are roasted in an oxygen containing gas at a temperature of from 400 degree

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A method for leaching copper and molybdenum from an ore residue and or 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 and or concentrate to an aqueous solution of chlorine I based oxidising species of a p H of

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The method of extraction of molybdenum from molybdenum cinder including leaching with translation of molybdenum in solution by treatment with a solution containing a carbonate of an alkali metal characterized in that as a carbonate of an alkali metal use potassium carbonate and carry out leaching solution optionally containing potassium nitrate when the ratio by weight 2 CO 3 Mo about in

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With a dilute acid extract from Molybdenum Ore Molybdenum and nickel salt method With acid and an oxidant directly on molybdenum nickel ore symbiotic process nickel salt leaching method of molybdenum nickel ore will be crushed molybdenum milling and leaching with dilute acid and oxidant filtration extraction and back extraction by ammonium molybdate raffinate solution and then get

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There is provided a process to reclaim molybdenum vanadium and other hydrodesulfurisation metals from catalysts said process comprising collecting one or more catalysts containing at least one metal sulfide leaching the catalyst in an atmospheric alkaline leach step separating the leached slurry into a first liquid stream and a first solid leaching the first solid in a caustic pressure

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concentration H 2SO 4 concentration pulp density and rotation speed on molybdenum extraction and molybdenite dissolution kinetics using the Taguchi method From analysis of variance ANOVA for molybdenum extraction the most significant factors were H2O2 concentration pulp density and

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The result indicated the process was an effective method to separate molybdenum ions from high impurity ferro molybdenum slag AB Solvent extraction of molybdenum VI from alkali roasted and water leaching of ferro molybdenum slag by using TOA and TBP as extractants was investigated In this study ferro molybdenum slags contain about 1 wt Mo

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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 mineral containing the molybdenum Mo and the copper Cu into a solution having chloride dissolved therein loading an electrode into the

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