Processes for extraction of nickel with iron-complexing agent

The invention provides, in part, a process for extracting nickel from a source material including iron and nickel, by contacting the source material (e.g, an ultramafic ore) with an aqueous ammonia solution containing an iron-complexing agent (e.g., citrate) under suitable conditions, thereby extracting the nickel. The aqueous ammonia solution may optionally contain a sulfur-containing reductant, such as thiosulfate.

Process to produce rough ferro-nickel product

Aspects of the present invention refer to a MHP process do produce rough ferro-nickel product and that may include the steps of mixing nickel hydroxide with an iron source and slagging agents, putting the mixture in contact with a reducing agent producing a ferronickel alloy, and producing a roasted product that has disseminated ferronickel alloy inside the structure.

METHOD OF METALS RECOVERY FROM REFINERY RESIDUES

A method of recovering vanadium, nickel and molybdenum from heavy crude oil refinery residues comprises pyrolysis and combustion of the residues at temperatures up to 900° C. to produce an ash, converting the ash to an aqueous slurry comprising sodium hydroxide as leading agent and hydrogen peroxide as oxidizer, and extracting vanadium, nickel and molybdenum salts and oxides from the slurry. Extraction processes for the metals are disclosed. 1. A method of recovering vanadium , nickel and molybdenum from heavy crude oil refinery residues , comprising pyrolysis and combustion of the residues at temperatures up to 900° C. to produce an ash , converting the ash to an aqueous slurry , and extracting vanadium , nickel and molybdenum compounds from the slurry.2. A method according to claim 1 , wherein the combustion step is carried out at a temperature of above 600° C.3. A method according to claim 1 , comprising recovery of vanadium and molybdenum by precipitation with ammonium ions.4. A method according to claim 1 , comprising recovering nickel in the form of nickel hydroxide by further leaching and precipitation with magnesium oxide.5. A method according to claim 4 , comprising:(a) slurrying said ash with water and regenerated liquid from step (p);(b) treating said slurried ash with an aqueous solvent and an oxidizer in a leaching zone at leaching conditions;(c) passing the effluent of step (b), which comprises liquid and insoluble solids to a filtration zone, from which solid material is recovered as a filter cake;(d) passing the supernatant of step (c), which comprises an aqueous phase and an organic phase, to a mixer-settler zone, wherein the supernatant is adjusted for pH and ammonium metavanadate precipitated;(e) passing the effluent of step (d) to a filtration zone for the removal of ammonium metavanadate solid;(f) passing the supernatant of step (e) to a mixer-settler zone, wherein the supernatant is adjusted for pH and ammonium heptamolybdate tetrahydrate ...

CALCINATION AND REDUCTION PROCESS INCLUDING A FLUIDIZING BED REACTOR

These disclosures relate to preparing nickel metal (Ni(0)) suited for use in catalyst systems, such as nickel complexes with phosphorus-containing ligands, useful to catalyze the hydrocyanation of ethylenically unsaturated compounds. The methods described herein can include use of steam during reduction of nickel. 1. A method for the production of nickel metal (Ni(0)) from a nickel(II)-containing composition comprising steps of:providing a nickel(II)-containing composition and a gas to a fluidizing bed reactor, wherein the gas is flowing and substantially supporting solids from the composition;wherein the gas comprises steam; andreducing nickel in the nickel(II)-containing composition to thereby produce nickel metal (Ni(0)) from the nickel(II)-containing composition;wherein the composition comprises nickel(II)-containing substances selected from a group consisting of: basic nickel carbonate, nickel carbonate, nickel bicarbonate, nickel oxalate, nickel formate, nickel squarate, nickel oxide and nickel hydroxide.2. The method of claim 1 , further comprising calcining the nickel(II)-containing composition prior to reducing the nickel.3. The method of claim 1 , further comprising calcining the nickel(II)-containing composition under calcining conditions.4. The method of claim 1 , further comprising calcining the nickel(II)-containing composition by a method comprising providing a gas to the fluidizing bed reactor that comprises oxygen.5. The method of claim 1 , further comprising calcining the nickel(II)-containing composition by a method comprising operating the fluidized bed for a time and at a temperature sufficient for generating nickel oxide within the nickel(II)-containing composition.6. The method of claim 1 , further comprising calcining the nickel(II)-containing composition using calcining conditions that yield a calcined product with a carbon:nickel atomic ratio of less than one.7. The method of claim 1 , further comprising calcining the nickel(II)-containing ...

SEPARATION OF IRON FROM VALUE METALS IN LEACHING OF LATERITE ORES

The invention provides a process for the leaching of a laterite ore, concentrate, tailings or waste rock for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite ore, followed by a liquid/solids separation step. The liquid obtained is subject to solvent extraction with a dialkyl ketone, to obtain a solution rich in iron and a raffinate. Separation of iron from cobalt and nickel is obtained. 1. A process for the leaching of a laterite ore or concentrate for the recovery of value metals , such values including iron , cobalt and nickel , comprising the steps of:a) subjecting laterite ore or concentrate to a leaching step with a lixiviant comprising hydrochloric acid to leach value metals from the laterite ore or concentrate, followed by a liquid/solids separation step to obtain a solution containing value metals; andb) subjecting the solution obtained in step (a) to solvent extraction with a dialkyl ketone, to obtain a solution rich in iron and a raffinate.2. The process of in which the lixiviant is a mixed chloride lixiviant.3. The process of in which the solution rich in iron from step b) is subjected to pyrohydrolysis or a hydrothermal process followed by a liquid/solids separation step to obtain a solids containing iron and a solution containing hydrochloric acid.4. The process of in which the lixiviant of step (a) is a solution of hydrochloric acid and magnesium chloride.5. The process of in which the dialkyl ketone has alkyl groups selected from the group consisting of C-Calkyl groups.6. The process of in which the alkyl groups are selected from the group consisting of methyl claim 5 , ethyl claim 5 , propyl claim 5 , isopropyl and isobutyl.7. The process of in which the dialkyl ketone is methylisobutyl ketone or dibutyl ketone.8. The process of in which the raffinate of step (b) is subjected to steps to ...

APPARATUS FOR ATOMIZING MOLTEN SLAG AND RECOVERING VALUABLE METAL

The present invention relates to an apparatus for atomizing molten slag and recovering valuable metals, and more particularly to an apparatus for atomizing molten slag and recovering valuable metals, which enables molten slag of a blast furnace or a converter or an electric furnace to be atomized and valuable metals to be recovered. 1. An apparatus for atomizing molten slag and recovering metals , comprising:a slag pot;a first supplier connected to the slag pot and having an upper portion formed in a hopper shape for supplying molten slag to the slag pot while forming a vortex in the molten slag;a second supplier connected to the first supplier for supplying molten slag to the first supplier; anda third supplier connected to the slag pot for supplying a reducing agent to the slag pot.2. The apparatus of claim 1 , wherein the first supplier has a lower portion formed in a linear pipe shape and inner diameter of the hopper shape is gradually decreased downwards.3. The apparatus of claim 1 , wherein the second supplier has an outlet extending to the upper portion of the first supplier.4. The apparatus of claim 1 , wherein an end of the third supplier is disposed above a space defined between a center of the first supplier and an edge thereof so that the reducing agent can be supplied to the molten slag in the first supplier at the position of the space.5. An apparatus for atomizing molten slag and recovering metals claim 1 , comprising:a slag pot;a first supplier connected to the slag pot and formed in a hopper shape for supplying molten slag to the slag pot while forming a vortex in the molten slag;a second supplier connected to the first supplier for supplying molten slag to the first supplier; anda cooler for cooling the molten slag supplied to the slag pot.6. The apparatus of claim 5 , wherein inner diameter of the hopper shape is gradually decreased downwards.7. The apparatus of claim 5 , wherein the cooler includes a steam supplier for supplying steam to the slag ...

Method for Recovering Valuable Material from Lithium-Ion Secondary Battery, and Recovered Material Containing Valuable Material

A method for recovering a valuable material from a lithium-ion secondary battery, the method contains: roasting a lithium-ion secondary battery containing a valuable material in a metal battery case thereof to obtain a roasted material; stirring the roasted material with liquid to separate contents containing the valuable material from the inside of the metal battery case; and sorting the contents separated by the separation and the metal battery case to obtain a recovered material containing the valuable material. 1. A method for recovering a valuable material from a lithium-ion secondary battery , the method comprising:roasting a lithium-ion secondary battery containing a valuable material in a metal battery case thereof to obtain a roasted material;stirring the roasted material with liquid to separate contents containing the valuable material from the inside of the metal battery case; andsorting the contents separated by the separation and the metal battery case to obtain a recovered material containing the valuable material.2. The method for recovering a valuable material from a lithium-ion secondary battery according to claim 1 , wherein the valuable material is cobalt.3. The method for recovering a valuable material from a lithium-ion secondary battery according to claim 1 , wherein the separation is performed by a ball mill claim 1 , a rod mill claim 1 , a mill using no solid media claim 1 , and a rotary washing machine.4. The method for recovering a valuable material from a lithium-ion secondary battery according to claim 1 , wherein an amount of the liquid for use in the separation is 0.5 kg to 100 kg relative to 1 kg of the roasted material.5. The method for recovering a valuable material from a lithium-ion secondary battery according to claim 1 , wherein the sorting is performed by sieving.6. The method for recovering a valuable material from a lithium-ion secondary battery according to claim 5 , wherein a particle size of undersize recovered material ...

Nickel compositions for preparing nickel metal and nickel complexes

Nickel(II) compositions for use in manufacturing nickel metal (Ni(0)) compositions, and specifically to methods of making basic nickel carbonates used to produce nickel metal compositions are disclosed. By varying the molar ratios of carbonates and bicarbonates to nickel salts, the methods provide basic nickel carbonates that produce superior nickel metal-containing solids that are well-suited to forming nickel-ligand complexes with phosphorus-containing ligands. The phosphorus-containing ligands can be monodentate or bidentate phosphorus-containing ligands.

Process for the production of a pgm-enriched alloy

A process for production of a PGM (platinum group metal)-enriched alloy containing iron and PGM(s) (platinum, palladium and/or rhodium) includes steps of: (1) providing a sulfur-free PGM collector alloy, (2) providing a copper- and sulfur-free material capable of forming a molten slag-type composition including silicon dioxide and magnesium and/or calcium oxide, (3) melting the PGM collector alloy and slag-forming material within a converter until a multi-phase system of a lower high-density molten mass of PGM collector alloy and an upper low-density molten mass of slag-type composition has formed, (4) contacting an oxidizing gas with the lower high-density molten mass of step (3) until conversion of the PGM collector alloy into a PGM-enriched alloy, (5) separating an upper molten slag formed in step (4) from the PGM-enriched alloy by difference in density, (6) allowing the separated molten masses to cool down and solidify, and (7) collecting the solidified PGM-enriched alloy.

PRODUCTION OF CRYSTALLIZED COBALT (II) CHLORIDE HEXAHYDRATE

A method for production of crystallized Cobalt (II) Chloride hexahydrate is disclosed, and an implementation includes preparing a first cobalt (II) chloride solution, separating impurities from the first cobalt (II) chloride solution to obtain a second cobalt (II) chloride solution, concentrating the second cobalt (II) chloride solution, cooling the concentrated second cobalt (II) chloride solution, and injecting COgas into the cooled concentrated second cobalt (II) chloride solution at an atmospheric pressure in order for Cobalt (II) Chloride hexahydrate crystals to form in the cooled concentrated second cobalt (II) chloride solution. 1. A method for production of crystallized Cobalt (II) Chloride hexahydrate , the method comprising:preparing a first cobalt (II) chloride solution;separating impurities from the first cobalt (II) chloride solution to obtain a second cobalt (II) chloride solution;concentrating the second cobalt (II) chloride solution to a concentrated second cobalt (II) chloride solution;cooling the concentrated second cobalt (II) chloride solution to a cooled concentrated second cobalt (II) chloride solution; and{'sub': '2', 'forming Cobalt (II) Chloride hexahydrate crystals in the cooled concentrated second cobalt (II) chloride solution, wherein the forming includes injecting COgas into the cooled concentrated second cobalt (II) chloride solution at an atmospheric pressure.'}2. The method according to claim 1 , wherein cooling the concentrated second cobalt (II) chloride solution to the cooled concentrated second cobalt (II) chloride solution includes cooling the concentrated second cobalt (II) chloride solution to a predetermined temperature.3. The method according to claim 2 , wherein the method further includes separating the formed Cobalt (II) Chloride hexahydrate crystals from the cooled concentrated second cobalt (II) chloride solution at the predetermined temperature.4. The method according to claim 3 , wherein separating the formed Cobalt ( ...

NEUTRALIZATION METHOD AND NEUTRALIZATION PLANT

A method for improving the filterability in separating a zinc sulfide, produced by applying sulfurization treatment to a post-neutralization solution containing zinc together with nickel and cobalt in a dezincification step in a hydrometallurgical process for nickel oxide ore. The method includes a neutralization reaction step of neutralizing leachate in a neutralization tank, a separation step of separating neutralized slurry into a neutralized sediment and a post-neutralization solution by adding flocculant to the neutralized slurry, a measuring step of measuring the viscosity of the post-neutralization solution, a step of storing the post-neutralization solution in a storage tank, and a transfer step of transferring the stored post-neutralization solution to a dezincification reaction tank used in a dezincification step subsequent to a neutralization step. 1. A neutralization method used in a neutralization step of neutralizing leachate produced by leaching nickel oxide ore , and producing neutralized sediment containing impurities and a post-neutralization solution containing zinc together with nickel and cobalt , in a hydrometallurgy process for nickel oxide ore , the method comprises:a neutralization reaction step of neutralizing the leachate in a neutralization reaction tank;a separation step of separating neutralized slurry into neutralized sediment and the post-neutralization solution by adding flocculant to the slurry;a viscosity measuring step of measuring the viscosity of the post-neutralization solution produced through the separation step;a storing step of temporarily storing the post-neutralization solution in a storage tank; anda flow-feeding step of transferring the stored post-neutralization solution to a dezincification reaction tank used in a dezincification step subsequent to the neutralization step,{'sup': '2', 'wherein in the flow-feeding step, when the viscosity of the post-neutralization solution measured in the viscosity measuring step is ...

Chemical Dismantling Of Permanent Magnet Material And Battery Material

Certain method embodiments are described and useful for recycling permanent magnet materials (e.g. permanent magnet alloys) and battery materials (e.g. battery electrode materials) to extract critical and/or valuable elements including REEs, Co and Ni. Method embodiments involve reacting such material with at least one of an ammonium salt and an iron (III) salt to achieve at least one of a liquid phase chemical reaction and a mechanochemical reaction. 1. A method for dismantling a material comprising at least one of a rare earth metal , cobalt , and nickel , wherein the rare earth metal includes at least one of Sc , Y , La , Ce , Pr , Nd , Sm , Eu , Gd , Tb , Dy , Ho , Er , Tm , Yb , and Lu , comprising the step of reacting the material with at least one of an ammonium salt and iron (Ill) salt using at least one of liquid phase chemical reaction or a mechanochemical reaction.2. The method of wherein the dismantling is carried out a temperature from room temperature to about 100° C.3. The method of where the dismantling is carried in the absence of water or another solvent using mechanical milling in the presence of at least one of the ammonium salt and iron (Ill) salt at room temperature to achieve a mechanochemical solid state reaction.4. The method of where the dismantling is carried in the presence of water and of at least one of the ammonium salt and iron (III) salt using mechanical milling at room temperature to achieve the mechanochemical reaction.5. The method of where the dismantling is carried in an aqueous environment or in a solution containing water as one component.6. The method of where the dismantling is carried in aqueous environment at a temperature from room temperature to about 100° C. after mechanical milling of the material together with the salt.7. The method of wherein the material comprises at least one of a permanent magnet alloy and a battery alloy containing at least one of the rare earth metal claim 1 , cobalt and nickel.8. The method of ...

METHOD FOR OPERATING FLASH VESSEL

The present invention is such that, with H1 being the height from a slurry outlet to a control liquid level, H2 being the height from the control liquid level to the top of a flash vessel, and being the diameter of the flash vessel, 0.35D≦H1≦0.45D, and 0.75D≦H2≦0.85D, and at least one liquid level sensor detects a slurry liquid surface at a control liquid level; when the liquid level sensor detects a slurry liquid surface which has risen, a slurry discharge valve installed on a slurry discharge pipe derived from the flash vessel is opened; and when the liquid level sensor detects a slurry liquid surface which has fallen, the slurry discharge valve is closed, whereby opening and closing of the valve is appropriately controlled thereby to reduce troubles with a steam discharge pipe, the slurry discharge pipe, and the slurry discharge valve.

COBALT POWDER PRODUCTION METHOD

Provided is a production method for producing coarse particles of high purity Co powder from a cobalt ammine sulfate complex solution using fine Co powder and using industrially inexpensive Hgas. 1. A method of producing cobalt powder from a cobalt ammine sulfate complex solution derived from a cobalt-containing material , comprising:(1) a seed crystal addition step of adding cobalt powder as seed crystals to the cobalt ammine sulfate complex solution to form a mixed slurry;(2) a reduction step of blowing hydrogen gas into the mixed slurry obtained in the seed crystal addition step to precipitate a cobalt component in the mixed slurry onto the seed crystals by hydrogen reduction reaction to form cobalt powder, and thereby to form a reduced slurry containing the cobalt powder;(3) a growth step of adding the cobalt ammine sulfate complex solution to the cobalt powder obtained by solid-liquid separation of the reduced slurry formed in the reduction step (2) to form a slurry, blowing hydrogen gas into the resulting slurry, and reducing, precipitating, and growing a cobalt component in the slurry on a surface of the cobalt powder by hydrogen reduction reaction to form a grown cobalt powder, and thereby to form a slurry containing the grown cobalt powder; and(4) a recovery step after the reduction step of subjecting the reduced slurry containing the cobalt powder obtained in the reduction step (2) to solid-liquid separation to separate and recover the cobalt powder as a solid phase component, and another recovery step after the growth step of subjecting the slurry containing the cobalt powder obtained in the growth step (3) to solid-liquid separation to separate and recover the cobalt powder as a solid phase component.2. The method of producing cobalt powder according to claim 1 , wherein claim 1 , in the seed crystal addition step (1) claim 1 , a dispersant is further added to the mixed slurry when the seed crystals are added to the cobalt ammine sulfate complex solution ...

ALUMINUM-BASED ULTRA-THIN LAUNDER

The present invention relates to the field of alloy-smelting facilities, and provides an aluminum-based ultra-thin launder. The launder has a body with a wall thickness of 12 mm to 25 mm. The body has a segmented structure, including a part of alloy in, a first launder, a second launder and a part of alloy out that are connected in sequence. The body of the launder provided in the present invention is lighter and thinner. The cost of production and use is reduced due to the significantly-decreased wall thickness and weight. The connection mode for components of the body is changed, which is beneficial to the replacement, and fundamentally lowers the risk of a repair material contaminating melted alloy. 1. An aluminum-based ultra-thin launder , wherein , the launder has a body with a wall thickness of 12 mm to 25 mm; and the body has a segmented structure , comprising a part of alloy in , a first launder , a second launder and a part of alloy out that are connected in sequence.2. The aluminum-based ultra-thin launder according to claim 1 , wherein the part of alloy in claim 1 , the first launder claim 1 , the second launder and the part of alloy out are connected via splicing or snapping connection.3. The aluminum-based ultra-thin launder according to claim 1 , wherein claim 1 , the part of alloy in comprises a buffer zone and a direct-flow zone; and the buffer zone and the direct-flow zone are connected via a ramp.4. The aluminum-based ultra-thin launder according to claim 3 , wherein claim 3 , an engaging groove is disposed in the direct-flow zone claim 3 , and a filter plate is disposed in the engaging groove.5. The aluminum-based ultra-thin launder according to claim 4 , wherein a slag-blocking device is disposed on one side of the bottom of the engaging groove.6. The aluminum-based ultra-thin launder according to claim 1 , wherein claim 1 , one end of the part of alloy out is closed claim 1 , and the closed-end of the part of alloy out has an inclined surface.7. ...

PROCESSES FOR RECOVERING NON-FERROUS METALS FROM SOLID MATRICES

The present invention relates to a process for recovering non-ferrous metals from a solid matrix comprising the following phases: 1. A process for recovering non-ferrous metals from a solid matrix , the process comprising the phases of:(a) leaching the solid matrix with an aqueous-based solution containing chloride ions and ammonium ions and having a pH within a range of 6.5-8.5, in a presence of oxygen, at a temperature ranging from 100° C. to 160° C. and a pressure within a range of 150 kPa-800 kPa, so as to obtain an extraction solution comprising leached metals and solid leaching residue;(b) separating the solid leaching residue from the extraction solution; and(c) subjecting the extraction solution to at least one cementation so as to recover the leached metals in elemental state.2. The process of claim 1 , wherein the at least one cementation is effected in a plurality of cementation steps in series claim 1 , obtaining from each of the steps a metallic cement claim 1 , containing a metal or a combination of metals claim 1 , and a supernatant solution which is fed to a subsequent cementation step and subjected to further cementation.3. The process of claim 2 , wherein in each of the cementation steps claim 2 , a precipitating metal is added in excess with respect to the metal or the combination of metals to be precipitated.4. The process of claim 3 , wherein a same precipitating metal is added in each of the cementation steps.5. The process of claim 3 , wherein in at least one of the cementation steps claim 3 , the precipitating metal comprises a metallic cement obtained from a subsequent cementation step.6. The process of claim 3 , wherein the supernatant solution obtained from a last cementation step is subjected to electrolysis with recovery of the precipitating metal in elemental state and formation of a regenerated electrolytic solution.7. The process of claim 6 , wherein the regenerated electrolytic solution is used in the phase (a) as the leaching ...

SOLUTION FOR USE IN EXTRACTION OF COBALT, COBALT SOLUTION, AND METHOD FOR COLLECTING COBALT

The purpose of the present invention is to provide a solution for use in the extraction of cobalt, whereby it becomes possible to extract cobalt at lower cost and more safely compared with a case in which a conventional one is used. The solution for use in the extraction of cobalt according to the present invention comprises: an ionic liquid containing a quaternary ammonium group; and an organic solvent which exists in such a state that the organic solvent is mixed with the ionic liquid and which has a kauri-butanol value of 60 or more. 1. A solution for use in extraction of cobalt , comprising:an ionic liquid containing a quaternary ammonium group; andan organic solvent that is present in a state of being mingled with the ionic liquid and has a kauri-butanol value of 60 or more.2. A solution for use in extraction of cobalt according to claim 1 , wherein the solution comprises the organic solvent at a volume ratio of 2% or more and 50% or less.3. A solution for use in extraction of cobalt according to claim 1 , wherein the solution comprises the organic solvent at a volume ratio of 5% or more and 15% or less.4. A solution for use in extraction of cobalt according to claim 1 , wherein the organic solvent comprises an alkylbenzene derivative or toluene.5. A solution for use in extraction of cobalt according to claim 1 , wherein the ionic liquid comprises tri-octyl-methyl-ammonium-chloride (TOMAC) or di-octadecyl-di-methyl-ammonium-chloride.6. A solution for use in extraction of cobalt according to claim 1 , wherein the solution has a viscosity of 0.02 Pa·s or more and 0.5 Pa·s or less.7. A solution for use in extraction of cobalt according to claim 1 , wherein the solution has a solubility in water of 0.01% or less.8. A cobalt solution claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the solution for use in extraction of cobalt of ; and'}an aqueous solution of cobalt and an acid containing chlorine, the aqueous solution being dissolved in the ...

Method for whole component microwave fast digestion and precious metal extraction from ionic liquid of waste circuit board

The invention discloses Method for whole component microwave fast digestion and precious metal extraction from ionic liquid of waste circuit board, and belongs to the field of hydrometallurgy. Based on the theory that microwaves can directly penetrate through a leaching medium to directly heat a circuit board, microwave-assisted leaching can reinforce mass transfer and heat transfer in the traditional leaching process, the leaching time is greatly shortened, and the leaching efficiency is improved. Before leaching, a waste circuit board does not need to be smashed, and environmental protection is achieved while energy is saved. The temperature rising process and reaction time of the reaction can be controlled, the whole process is conducted under the airtight condition, heat loss in the leaching process is avoided, the valuable leaching rate is high, the selectivity is high, and efficient leaching of valuable metal can be achieved. Precious metal leachate is extracted through imidazolium ionic liquid, the selectivity of the imidazolium ionic liquid to gold is high, and the co-extraction phenomenon of gold, nickel, copper and other ions is avoided. The method for extracting the precious metal leachate through ionic liquid is a green and clean recycling method, and the overall recycling rate of gold, nickel and copper can reach 99% or above 1. A method for whole component microwave fast digestion and precious metal extraction from ionic liquid of waste circuit board is characterized in that: the method including the following steps:(1) pretreatment of waste circuit boards: cut the waste circuit boards into small pieces to obtain the waste circuit boards to be leached;(2) configuration of precious metal leaching solution for waste circuit boards: add pure water, thiourea, sulfuric acid, and sodium peroxide to the beaker, and stir until all are dissolved to obtain the leaching solution; the concentration of the extract is: thiourea: 1.5-4 mol/L, sulfuric acid 0.5-2 mol/ ...

HEMATITE MANUFACTURING PROCESS AND HEMATITE MANUFACTURED BY SAME

Magnesium oxide produced by a process is used as a neutralizing agent for preliminary neutralization treatment of a leached slurry obtained by leaching a nickel oxide ore at a high temperature and pressure with sulfuric acid added. A neutralizing agent is added to a leachate, obtained by leaching a nickel oxide ore, to separate impurities, and a sulfurizing agent is added to the resulting neutralized solution to obtain nickel and cobalt sulfides, followed by separating the sulfurized solution; discharge waste water, obtained by adding a neutralizing agent to the sulfurized solution to separate aluminum and manganese, is concentrated to precipitate and separate calcium contained in the discharge waste water as calcium sulfate; the resulting solution is concentrated to precipitate magnesium in the solution as magnesium sulfate; the magnesium sulfate is roasted with a reducing agent to obtain magnesium oxide and a sulfurous gas; and the magnesium oxide is washed. 1. A process for producing hematite in which a slurry is prepared by adding sulfuric acid to a nickel oxide ore , and leaching nickel and cobalt in a sulfuric acid solution at a high temperature and high pressure , a first neutralizing agent is added to the slurry to adjust pH , and the slurry is separated into a leachate containing nickel and cobalt and leached residue as hematite , and recovered , the process comprising using , as the first neutralizing agent , magnesium oxide produced by passing through the following steps (1) to (5):(1) sulfurization step of adding a second neutralizing agent to the leachate to separate impurities, and adding a sulfurizing agent to the resulting neutralized solution to obtain sulfides of nickel and cobalt, followed by separating a sulfurized solution;(2) calcium separating step of concentrating discharge waste water, which is obtained by adding a third neutralizing agent to the sulfurized solution to separate aluminum and manganese from the sulfurized solution, to ...

NEUTRALIZATION METHOD

A method for reducing usage amount of expensive high alkaline neutralizer, and applying efficient neutralization treatment, when applying a neutralization treatment to a barren solution to produce in a treatment step, in which a sulfide compose of nickel and cobalt is produced from a sulfuric acid aqueous solution containing nickel and cobalt, and impurity metals containing at least one or more of iron, magnesium, and manganese. A first neutralization treatment step of applying a neutralization treatment to the barren solution, with a range of pH 5.0 to 6.0 as the end point, by using calcium carbonate slurry, as a first neutralizer; and a second neutralization treatment step of applying a neutralization treatment to a solution produced in the first neutralization treatment step, by using a second neutralizer, to produce sediment containing metal remained in the barren solution and a post-neutralization solution from which a metal ion is removed. 1. A neutralization method for neutralizing and removing a metal ion remained in a barren solution produced through a sulfurization treatment for producing a sulfide containing nickel and cobalt by blowing a hydrogen sulfide gas into a sulfuric acid aqueous solution containing the nickel and the cobalt , and impurity metals containing at least more than one of iron , magnesium , and manganese , the method comprises:a first neutralization treatment step of applying a neutralization treatment to the barren solution, with a range of pH 5.0 to 6.0 as an end point, by using calcium carbonate slurry as a first neutralizer; anda second neutralization treatment step of applying a neutralization treatment to a solution produced in the first neutralization treatment step by using slaked lime slurry as a second neutralizer to produce a sediment containing a metal remained in the barren solution and a post-neutralized solution from which the metal ion is removed.2. (canceled)3. The neutralization method according to claim 1 , wherein pH ...

Method for refining sulfidic copper concentrate

A method for refining sulfidic copper concentrate includes feeding sulfidic copper concentrate and oxygen-bearing reaction gas and slag forming material into a reaction shaft of a suspension smelting furnace, collecting slag and blister copper in a settler of the suspension smelting furnace to form a blister layer containing blister copper and a slag layer, and discharging slag and blister copper separately from the settler of the suspension smelting furnace, so that slag is fed into an electric furnace. The method further includes feeding a part of the sulfidic copper concentrate into the electric furnace.

SYSTEMS AND METHODS FOR IMPROVED METAL RECOVERY USING AMMONIA LEACHING

Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream. 1. A method comprising:leaching a slurry comprising a copper bearing material and an ammonia leach medium;adding copper powder to the slurry;separating the slurry into a pregnant leach solution and solids; andperforming a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.2. The method of claim 1 , further comprising:producing a cobalt precipitate from a raffinate produced by solvent extraction; andsubjecting the cobalt precipitate to a metal recovery process.3. The method of claim 1 , further comprising wet grinding the copper bearing material prior to the leaching.4. The method of claim 1 , wherein the leaching is performed in the presence of sulfur dioxide gas.5. The method of claim 1 , further comprising adding ammonium hydrosulfide to the raffinate produced by solvent extraction.6. The method of claim 4 , wherein the leaching is performed in the presence of air.7. The method of claim 1 , subjecting the loaded aqueous stream to electrowinning to yield copper metal at a cathode.8. The method of claim 1 , wherein the solvent extraction comprises subjecting the pregnant leach solution to a copper specific extracting reagent.9. The process of claim 1 , wherein the solvent extraction comprises a scrubbing an organic phase with a weak acid.10. The process of claim 9 , wherein the weak acid is carbonic acid.11. The process of claim 10 , wherein the carbonic acid is added through dissolving carbon dioxide in water.12. The process of claim 5 , subjecting the loaded aqueous stream to electrowinning.13. A system comprising:a wet grinding apparatus ...

SYSTEMS AND METHODS FOR IMPROVED METAL RECOVERY USING AMMONIA LEACHING

Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and a leach medium comprising ammonia and ammonium carbonate, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream. 1. A method comprising:leaching a slurry comprising a copper bearing material and a leach medium comprising ammonia and ammonium carbonate;adding copper powder to the slurry;separating the slurry into a pregnant leach solution and solids; andperforming a solvent extraction on the pregnant leach solution to produce a loaded aqueous stream.2. The method of claim 1 , further comprising:producing a cobalt precipitate from a raffinate produced by solvent extraction; andsubjecting the cobalt precipitate to a metal recovery process.3. The method of claim 1 , wherein the leach medium further comprises ammonium sulfate.4. The method of claim 1 , further comprising:producing a cobalt precipitate and a cobalt depleted liquid phase from a raffinate produced by solvent extraction; andadding a portion of the cobalt depleted liquid phase to the slurry during leaching.5. The method of claim 1 , further comprising subjecting the pregnant leach solution to a solvent extraction to yield a loaded aqueous stream.6. The method of claim 5 , wherein an extraction of the solvent extraction yields a cobalt-bearing raffinate.7. The method of claim 6 , precipitating cobalt from the cobalt-bearing raffinate.8. The method of claim 7 , wherein the precipitating yields cobalt sulfide in a solid phase.9. The method of claim 8 , wherein the cobalt sulfide is subjected to leaching.10. The method of claim 5 , subjecting the loaded aqueous stream to electrowinning.11. A system comprising:a wet grinding apparatus configured to grind a metal bearing material;a basic leaching vessel ...

METHOD FOR RECOVERING METALS FROM WASTE ALUMINUM CATALYST

The present invention refers to a method being easy to recover metals including nickel and aluminum from waste aluminum catalysts, thereby entirely promoting the recovering rate. Said method comprises: preparing and roasting a waste aluminum catalyst with sodium salts, and then obtaining a first solution comprising vanadium and molybdenum, and a dreg comprising nickel and aluminum through leaching and filtrating; collecting and mixing the dreg with alkali powders to obtain a mixture of the dreg and alkali powders, roasting the mixture at 300 to 1000° C. with aluminum in the dreg reacting with hydroxyl generated from the roasting of mixture and further generating aluminum hydroxide, and then obtaining a second solution comprising aluminum and a concentrate having nickel through another leaching and filtrating; and recovering aluminum from the second solution and recovering nickel from the concentrate. 1. A method for recovering metals from waste aluminum catalysts , comprising:preparing and roasting a waste aluminum catalyst with sodium salts, and then obtaining a first solution and a dreg through leaching and filtrating, wherein the first solution comprises vanadium and molybdenum, and the dreg comprises nickel and aluminum;collecting and mixing the dreg with alkali powders to obtain a mixture of the dreg and the alkali powders, roasting the mixture at 300 to 1000° C. with aluminum in the dreg reacting with hydroxyl generated from the roasting of the mixture and further generating aluminum hydroxide, and then obtaining a second solution and a concentrate through leaching and filtrating, wherein the second solution comprises aluminum and the concentrate comprises nickel; andrecovering aluminum and nickel by precipitating aluminum and nickel from the second solution and the concentrate respectively.2. The method for recovering metals from waste aluminum catalysts as claimed in claim 1 , wherein a weight ratio between the drug and the alkali powder is 0.1:1 to 1:1.3. ...

METHOD FOR PRODUCING HIGH-PURITY COBALT SULFATE AQUEOUS SOLUTION

Disclosed herein is a method for easily and efficiently removing manganese from an aqueous acidic solution of sulfuric acid containing cobalt and manganese at low cast to obtain a high-purity cobalt sulfate aqueous solution usable as a raw material for lithium ion secondary batteries. The high-purity cobalt sulfate aqueous solution is obtained by mixing an aqueous acidic solution of sulfuric acid containing cobalt and manganese (aqueous phase) with an acidic organic extractant (organic phase) while adjusting the pH of the aqueous acidic solution of sulfuric acid to a value in a range between 2 and 4 with a pH adjuster such as sodium hydroxide to extract manganese into the organic phase. The acidic organic extractant to be used is preferably diluted so that the concentration of di-2-ethylhexyl phosphate is 10 to 30 vol %. 1. A method for producing a cobalt sulfate aqueous solution from an aqueous acidic solution of sulfuric acid containing cobalt and manganese , the method comprising mixing the aqueous acidic solution of sulfuric acid containing cobalt and manganese with an acidic organic extractant while adjusting a pH of the aqueous acidic solution of sulfuric acid in a range between 2 and 4 to extract manganese.2. The method for producing a cobalt sulfate aqueous solution according to claim 1 , wherein the acidic organic extractant mainly contains di-2-ethylhexyl phosphate.3. The method for producing a cobalt sulfate aqueous solution according to claim 2 , wherein the acidic organic extractant is diluted with a diluent so that a concentration of di-2-ethylhexyl phosphate in the acidic organic extractant is 10 to 30 vol %.4. The method for producing a cobalt sulfate aqueous solution according to claim 1 , wherein further containing copper claim 1 , the aqueous acidic solution of sulfuric acid is mixed with an acidic organic extractant while the pH of the aqueous acidic solution of sulfuric acid is adjusted to a value in a range between 2.6 and 4 to extract copper ...

METHOD FOR RECOVERING TARGET MATERIALS FROM SOURCE MATERIALS

A single-heating stage method for reclaiming or recovering metals like nickel and vanadium from a petroleum waste byproduct has three steps: melting the petroleum waste byproduct in a reducing atmosphere, generating agglomerated metal in the melted byproduct, and lifting the agglomerated metal to an exposed surface of the melted byproduct. The metal precipitates out of the molten byproduct, agglomerates into a separate portion, and rises to an exposed surface of the melted petroleum waste byproduct even though the metal may have greater density than the molten petroleum waste byproduct. The original petroleum waste byproduct stratifies into a byproduct remnant and the agglomerated metal disk. The agglomerated metal disk is separable from the byproduct remnant and may be additionally separated into constituent metals in those embodiments with multiple metals in the disk. 1. A method of recovering a target material from a source material comprising the steps of:placing the source material in contact with an additive layer so that the additive layer underlies the source material;heating the source material in a reducing atmosphere for a predetermined length of time so that the source material separates into a main body of remnant material and a distinct portion of the target material, wherein the source material is heated in an environment at or above a melting point of the source material;cooling the main body of remnant material and the distinct portion of the target material; andremoving the distinct portion to recover the target material.2. The method of further comprising the step of separating a constituent metal from the distinct portion.3. The method of claim 2 , wherein the step of separating the constituent metal from the distinct portion includes specific gravity separation.4. The method of claim 2 , wherein the step of separating the constituent metal from the distinct portion includes magnetic separation.5. The method of claim 1 , wherein the additive ...

COBALT EXTRACTION METHOD

The objective of the present invention is to selectively extract cobalt from an acidic solution containing a high concentration of manganese. This cobalt extraction method extracts cobalt from an acidic solution containing manganese and cobalt by subjecting the acidic solution to solvent extraction by means of a valuable metal extraction agent comprising an amide derivative represented by general formula (I). The valuable metal extraction agent is represented by the general formula. In the formula: Rand Reach represent the same or different alkyl group; Rrepresents a hydrogen atom or an alkyl group; and Rrepresents a hydrogen atom or any given group aside from an amino group bonded to the α carbon as an amino acid. Preferably, the general formula has a glycine unit, a histidine unit, a lysine unit, an aspartic acid unit, or an N-methylglycine unit. Preferably, the pH of the acidic solution is 3.5-5.5 inclusive. 2. The cobalt extraction method according to claim 1 , wherein the amide derivative is any one or more of glycinamide derivatives claim 1 , histidinamide derivatives claim 1 , lysinamide derivatives claim 1 , aspartic acid amide derivatives and N-methylglycine derivatives.3. The cobalt extraction method according to or claim 1 , wherein the acid solution is subjected to the solvent extraction with the pH of the acid solution adjusted to a range of 3.5 or more to 5.5 or less. The present invention relates to a cobalt extraction method.Cobalt and rare earth metals are known as valuable metals and used for various applications in industry. Cobalt is used for positive electrode materials for secondary batteries, and, furthermore, superalloys (high strength heat-resistant alloys) used for e.g. jet engines for aircraft, and the like. Rare earth metals are used for fluorescent materials, negative electrode materials for nickel-hydrogen batteries, additives for magnets installed in motors, abrasives for glass substrates used for liquid crystal display panels and hard ...

METHOD FOR SEPARATING COPPER FROM NICKEL AND COBALT

Provided is a method for efficiently separating copper from nickel and cobalt from a sulfide containing nickel and cobalt together with copper. The present invention is a method for separating copper from nickel and cobalt, the method comprising pulverizing a sulfide containing copper and nickel and cobalt into a predetermined size and then stirring the resultant product under the condition having an oxidation-reduction potential (a reference electrode: a silver/silver chloride electrode) of less than 100 mV using an acid solution to perform a leaching treatment. In this separation method, a leach liquor in which nickel and cobalt are leached and a leach residue containing copper sulfate are produced as the result of the leaching treatment. 1. A method for separating copper from nickel and cobalt , wherein a sulfide comprising copper , nickel and cobalt is pulverized to a predetermined size , and the pulverized sulfide is subjected to a leaching treatment by stirring the pulverized sulfide in an acid solution under a condition wherein a redox potential (reference electrode: silver/silver chloride electrode) is less than 100 mV.2. The method for separating copper from nickel and cobalt according to claim 1 , wherein the leaching treatment produces a leachate in which nickel and cobalt are leached claim 1 , and a leach residue comprising copper sulfide.3. The method for separating copper from nickel and cobalt according to claim 1 , wherein the sulfide is pulverized so as to have a particle size of 150 μm or less as a D90 value.4. The method for separating copper from nickel and cobalt according to claim 1 , wherein the leaching treatment is performed at an acid solution temperature in a range of 60° C. or more and less than 100° C.5. The method for separating copper from nickel and cobalt according to claim 1 , wherein a hydrochloric acid solution or a sulfuric acid solution is used as the acid solution.6. The method for separating copper from nickel and cobalt ...

PROCESS FOR SEPARATING AND RECOVERING METALS

A process for treating spent catalyst containing heavy metals, e.g., Group VIB metals and Group VIII metals is provided. In one embodiment after deoiling, the spent catalyst is treated with an ammonia leach solution under conditions sufficient to dissolve the group VIB metal and the Group VIII metal into the leaching solution, forming a leach slurry. After solid-liquid separation to recover a leach solution, chemical precipitation and solids repulping is carried out to obtain an effluent stream containing ammonium sulfate (Amsul), ammonium sulfamate, Group VB, Group VIB and Group VIII metals. Following sulfidation, the Group VIII metal is fully removed and Group VB and Group VI metals are partially removed from the Amsul stream. In the additional steps of oxydrolysis and iron precipitation, an effective amount of ferric ion at a pre-select pH is added to form insoluble complexes with the Group VB and Group VIB metals, which upon liquid-solid separation produces an effluent ammonium sulfate stream containing less than 10 ppm each of the Group VB and Group VIB metals. 1. A method for recovering metals from a spent catalyst , the method comprising:leaching a Group VIB metal, a Group VIII metal, and a Group VB metal, from the spent catalyst with an ammonia containing leach solution at a temperature and a pressure sufficient to form a pressure leach slurry;separating and removing a solid residue from the pressure leach slurry to form a pressure leach solution comprising a Group VIB soluble metal complex and a Group VIII soluble metal complex;treating the pressure leach solution by chemical precipitation to precipitate at least a portion of the Group VIB metal and at least a portion of the Group VIII metal as precipitated metal complexes;recovering the precipitated metal complexes by at least a separation means selected from settling, filtration, decantation, centrifugation and combinations thereof, forming a first effluent stream containing less than 600 ppm of the Group ...

Hydrometallurgical Process For Nickel Oxide Ore

Provided is a hydrometallurgical process for nickel oxide ore by high pressure acid leach that achieves a high iron oxidation ratio. The carbon grade in ore slurry and the flow rate are measured to determine the amount of carbon to be fed, and then, sulfuric acid is added. The blowing ratio of high pressure air and high pressure oxygen is adjusted so as to attain an oxygen purity of 21% to 60%. While the oxygen purity is maintained, an oxygen blowing amount per weight of carbon contained in the ore slurry and fed in the second step is adjusted to 200 to 600 Nm, whereby ORP (Ag/AgCl basis) in the leaching treatment is controlled to 400 to 650 mV. 1. A hydrometallurgical process for nickel oxide ore , the process comprising: a first step of slurrying a nickel oxide ore to prepare ore slurry; and a second step of adding sulfuric acid to the ore slurry and applying a leaching treatment using high pressure air and high pressure vapor to obtain a leachate containing nickel and cobalt;{'sup': '3', 'sub': '2', 'wherein, in the second step, a blown gas made up of high pressure air to high pressure oxygen is adjusted so as to attain an oxygen purity of 21% to 60%, and, while the oxygen purity is maintained, an oxygen blowing amount is adjusted to 200 to 600 [Nm-O/t-C] per ton of carbon amount which is contained in the ore slurry and fed in the second step, whereby an oxidation-reduction potential (Ag/AgCl basis) in a leaching treatment is controlled to 400 to 650 mV.'}2. The hydrometallurgical process for nickel oxide ore according to claim 1 , wherein claim 1 , in the first step claim 1 , a carbon grade of solids in the ore slurry is adjusted to 0.1% to 0.5% by weight by a blending ratio of nickel oxide ore which have different carbon grades and constitute the ore slurry.3. The hydrometallurgical process for nickel oxide ore according to claim 1 , wherein claim 1 , in the second step claim 1 , a partial pressure of oxygen in a leaching vessel to perform a leaching treatment ...

PROCESS FOR RECOVERY OF COBALT, RUTHENIUM, AND ALUMINUM FROM SPENT CATALYST

A method for recovering cobalt, ruthenium, and aluminum from spent Co—Ru/AlOcatalyst. First, Co—Ru/AlOspent catalyst is subjected to hydrocarbon removal, reaction with hydrogen, and alkali fusion to obtain a slag. The slag is subjected to acid leaching, precipitation of cobalt with oxalic acid or ammonium oxalate, reduction of cobalt oxalate, and dissolution of cobalt metal with nitric acid to obtain Co(NO).6HO. The effluent of acid leaching is subjected to reaction with ethanol, filtration to obtain a filtrate and residue, dissolution of the residue with concentrated hydrochloric acid, and vacuum distillation to obtain β-RuCl.xHO. Aluminum hydroxide is prepared from the filtrate through carbonation and calcination. The cobalt yield is ≧97%; the ruthenium yield is ≧95%, and the aluminum yield is ≧92%. 2. The method of claim 1 , wherein:{'sub': 3', '3, 'the alkali fusing agents of 3) are KOH and KNO, or NaOH and NaNO;'} [{'br': None, 'sub': 2', '3', '2', '4', '2', '2, 'RuO+2KOH+KNO→KRuO+KNO+HO;'}, {'br': None, 'sub': 3', '2', '4', '2', '2, 'Ru+2KOH+3KNO→KRuO+3KNO+HO; and'}, {'br': None, 'sub': 2', '3', '2', '2, 'AlO+2KOH→2KAlO+HO;'}, {'br': None, 'Or'}, {'br': None, 'sub': 2', '3', '2', '4', '2', '2, 'RuO+2NaOH+NaNO→NaRuO+NaNO+HO;'}, {'br': None, 'sub': 3', '2', '4', '2', '2, 'Ru+2NaOH+3NaNO→NaRuO+3NaNO+HO; and'}, {'br': None, 'sub': 2', '3', '2', '2, 'AlO+2NaOH→2NaAlO+HO; and'}], 'the reactions occurring in 3) arean amount of the alkali fusing agents used is 2.5 times a theoretical amount thereof.3. The method of claim 1 , wherein:the alkali fusion reaction in 3) is layered alkali fusion containing four layers;{'sub': 3', '3, 'from a bottom of the crucible upward, ⅔ of a total amount of KOH, the heated powders of 2), ⅓ of the total amount of KOH, and KNOare disposed into layers; or from the bottom of the crucible upward, ⅔ of a total amount of NaOH, the heated powders of 2), ⅓ of the total amount of NaOH, and NaNOare disposed into layers; and'}{'sub': '4', 'layered ...

CONE VALVE

A cone valve, which significantly reduces a risk of damaging a valve seat, even if it is used as a check valve when feeding slurry containing highly abrasive coarse particles such as slurry of nickel oxide ore. The cone valve of the present invention is a cone valve used as a check valve when feeding slurry, comprising: a valve seat; a valve body for performing opening and closing operation by reciprocally moving in predetermined directions with respect to the valve seat; and a coil spring incorporated to make the valve body contact the valve seat, wherein an annular abutting surface is provided in the valve seat by a contact with an end of the valve body, and the valve seat is configured to have a thickened part in which a thickness in normal direction of the abutting surface is increased inward from the abutting surface. 1. A cone valve used as a check valve when feeding slurry , comprising:a valve seat;a valve body for performing opening and closing operation by reciprocally moving in predetermined directions with respect to the valve seat; anda coil spring incorporated to make the valve body contact the valve seat, wherein an annular abutting surface is provided in the valve seat by a contact with an end of the valve body, andthe valve seat is configured to have a thickened part in which a thickness in normal direction of the abutting surface is increased inward from the abutting surface.2. The cone valve according to claim 1 , wherein the end of the valve body is formed to be a side surface claim 1 , which is bent to be separated from the abutting surface at outermost periphery of the abutting surface claim 1 , and a bending direction of the side surface is in reciprocal movement direction of the valve body claim 1 , or in inner direction of the abutting surface from the reciprocal movement direction.3. The cone valve according to claim 1 , wherein the end of the valve body is formed in disc shape and its maximum diameter is 226 to 236 mm.4. The cone valve ...

MINERAL ORE SLURRY PRETREATMENT METHOD, AND METHOD FOR MANUFACTURING MINERAL ORE SLURRY

There is provided a method capable of effectively reducing the amount of acid used in a leaching step and the amount of a neutralizer used in a final neutralization step while nickel yield in a hydrometallurgical process for nickel oxide ore is not reduced. A method for pre-treating ore slurry according to the present invention is a method for pre-treating ore slurry to be provided to a leaching treatment in a hydrometallurgical process for nickel oxide ore, the method including: a first separation step for separating ore slurry into a coarse particle fraction and a fine particle fraction; a second separation step for separating the coarse particle fraction separated in the first separation step into a heavy specific gravity fraction and a light specific gravity fraction; and a vibration sieving step for separating, by a vibration sieve, the light specific gravity fraction. 1. A method for pre-treating ore slurry to be provided to a leaching treatment in a hydrometallurgical process for nickel oxide ore , the method comprising:a first separation step for separating ore slurry into a coarse particle fraction and a fine particle fraction using at least one of a hydrocyclone and a density separator at one to three stages and supplying the fine particle fraction to the leaching treatment;a second separation step for separating the coarse particle fraction separated in the first separation step into a heavy specific gravity fraction and a light specific gravity fraction using at least a spiral concentrator and supplying the heavy specific gravity fraction to the leaching treatment; anda vibration sieving step for separating, by a vibration sieve, the light specific gravity fraction separated in the second separation step into a fraction on the sieve and a fraction under the sieve and supplying the fraction under the sieve as ore slurry to the leaching treatment.2. The method for pre-treating ore slurry according to claim 1 , wherein a mesh size of the vibration sieve is ...

TREATMENT OF COMPLEX SULFIDE CONCENTRATE

A process of treating complex sulfide concentrate includes the steps of roasting wet or slurried complex sulfide concentrate in a furnace at a temperature of at least 720° C. to obtain a calcine; smelting the calcine under inert or oxygen free atmosphere in a smelting furnace to obtain a matte, and optionally granulating the matte to obtain a granulated matte. 1. 1. A process of treating complex sulfide concentrate , wherein the complex sulfide ore comprises 2 to 20 wt % Ni , 0 to 15 wt % Cu , and 10 to 55 wt % Fe of the total weight of the concentrate and the complex sulfide concentrate is obtained from complex sulfide ores comprising sulfides of two or more metals. , comprising the steps of:{'b': '10', '(a) roasting wet or slurried complex sulfide concentrate in a furnace () at a temperature of at least 720° C. to obtain a calcine, wherein oxygen is introduced into the roasting step (a) as oxygen enriched air; and'}(b) smelting the calcine obtained in step (a) under inert or oxygen free atmosphere in a smelting furnace to obtain a matte, wherein the matte is separated from slag without adding coke or other reductants.2. The process as claimed in claim 1 , further comprising(c) granulating the matte obtained in step (b) to obtain a granulated matte.3. The method as claimed in claim 1 , wherein the complex sulfide concentrate comprises Ni claim 1 , Cu claim 1 , Co claim 1 , Fe and/or PGM.4. The process as claimed in claim 1 , wherein calcine has sulfur content below 10% w/w.5. The process as claimed in claim 1 , wherein the furnace in step (a) is a drum furnace or a fluidizing bed furnace.6. The process as claimed in claim 1 , wherein the roasting temperature in step (a) is from 720 to 870° C. claim 1 , more preferably from 750 to 850 claim 1 , most preferably from 780 to 820° C.7. The process as claimed in claim 1 , wherein the oxygen partial pressure is below 1000 Pa.8. The process as claimed in claim 1 , wherein roasting in step (a) is accomplished in a bubbling ...

METHOD FOR PRODUCING MATTE OR CRUDE METAL IN A SUSPENSION SMELTING FURNACE AND SUSPENSION SMELTING FURNACE

A method is provided for producing matte such as copper or nickel matte or crude metal such as blister copper in a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. Also provided is a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. The suspension smelting furnace comprises a reaction shaft, a settler in communication with a lower end of the reaction shaft, and an uptake shaft. The settler extending in two opposite directions from a landing zone for a jet of oxidized suspension below the reaction shaft in the settler so that the settler comprises a first settler part on a first side of the landing zone and a second settler part on an opposite second side of the landing zone. 1. Method for producing matte such as copper matte or nickel matte or crude metal such as blister copper in a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace , comprising:feeding sulfidic raw material containing metal, slag-forming agent and oxygen containing reaction gas by means of a concentrate burner into a reaction shaft of the suspension smelting furnace to form a jet of oxidized suspension in the reaction shaft,receiving the jet of oxidized suspension in a landing zone of a settler in communication with a lower end of the reaction shaft, wherein the settler having an inner space and a first end wall structure at one end of the settler and a second end wall structure at the opposite end of the settler,forming a layer of matte or crude metal and a layer of slag on top of the layer of matte or crude metal in the inner space of the settler,leading process gases from the suspension smelting furnace via an uptake shaft, wherein the uptake shaft has a lower end in communication with the settler,discharging slag from the layer of slag in the settler through a first taphole, anddischarging matte or crude metal from the layer of matte or crude metal in the settler through ...

Cone valve

A cone valve of the present invention enables to extend a lifespan more than a conventional cone valve even if it is used as a check valve when feeding slurry containing highly abrasive coarse particles. A cone valve ( 1 ) used as a check valve when feeding slurry, comprising at least a valve body ( 11 ), a valve seat ( 13 ), and a spring ( 14 ) incorporated to make the valve body ( 11 ) contact the valve seat ( 14 ), wherein an entire length of the spring ( 14 ) is at least shorter than a stroke length of the valve body ( 11 ).

METHOD OF ORE PROCESSING

A method of selectively leaching a metal such as nickel from an ore or ore processing intermediate comprising the metal and cobalt. The ore or ore processing intermediate is contacted with an acidic leach solution comprising an amount of an oxidising agent sufficient to oxidise a major portion of the cobalt to thereby cause it to be stabilised in the solid phase while a major portion of the metal is dissolved for subsequent recovery. 2. The method of claim 1 , wherein greater than 70% by mass of the metal is selectively dissolved.3. The method of claim 1 , wherein greater than 90% by mass of the metal is selectively dissolved.4. The method of wherein the metal is nickel.5. The method of wherein the solid ore or solid ore processing intermediate is a mixed nickel-cobalt hydroxide precipitate.6. The method of wherein the oxidising agent has sufficient oxidising potential to oxidise cobalt(II) to cobalt(III).7. The method of wherein the oxidising agent has an oxidative potential of greater than about 0.5 V (SHE).8. The method of wherein the oxidising agent has an oxidative potential of greater than 0.5 V to 3.0 V (SHE).9. The method of wherein the acidic leach solution has a pH from about 1 to about 6.10. The method of wherein the acidic leach solution has a pH from about 2 to about 5.11. The method of wherein the oxidising agent has an oxidative potential of about 0.5 V to about 3.0 V (SHE) at a pH from 0 to 6.12. The method of wherein the oxidising agent has an oxidative potential of about 0.5 V to about 1.0 V (SHE) at a pH from 4 to 6.13. The method of wherein the oxidising agent has an oxidative potential of about 1.0 V to about 2.0 V (SHE) at a pH from 1 to 4.14. The method of wherein the oxidising agent is selected from the group consisting of persulphates claim 1 , peroxides claim 1 , permanganates claim 1 , perchlorates claim 1 , ozone claim 1 , oxides and chlorine.15. The method of further including a step of controlling addition of the oxidising agent.16. The ...

METHOD FOR MANUFACTURING CATALYSTS WITH REDUCED ATTRITION

The present invention discloses an inventive method for manufacturing a catalyst using alloy granules having a high-Ni content. The inventive method may include providing alloy granules comprising aluminum and nickel, and treating the alloy granules with an alkaline solution to form the catalyst. A content of the nickel in the alloy granules may be within a range of about 43 wt % to about 60 wt %. The alloy granules may have effective diameters within a range of about 1 mm to about 10 mm. The catalyst may have an attrition value of less than about 7.0%. 1. A method for manufacturing a catalyst , comprisingproviding alloy granules comprising aluminum and nickel, andtreating the alloy granules with an alkaline solution to form the catalyst,wherein a content of the nickel in the alloy granules is within a range of about 43 wt % to about 60 wt %.2. The method of claim 1 , wherein the alloy granules have effective diameters within a range of about 1 mm to about 10 mm.3. The method of claim 1 , wherein the content of the nickel in the alloy granules is within a range of about 45 wt % to about 58 wt %.4. The method of claim 1 , wherein the content of the nickel in the alloy granules is within a range of about 50 wt % to about 56 wt %.5. The method of claim 1 , wherein the content of the nickel in the alloy granules is within a range of about 50 wt % to about 53 wt %.6. The method of claim 1 , wherein the alloy granules have effective diameters within a range of about 2 mm to about 6 mm.7. The method of claim 1 , wherein the alkaline solution comprises sodium hydroxide.8. The method of claim 7 , wherein a concentration of the sodium hydroxide in the alkaline solution is within a range of 1 wt % to 20 wt %.9. The method of claim 7 , wherein a concentration of the sodium hydroxide in the alkaline solution is within a range of 1 wt % to 15 wt %.10. The method of claim 7 , wherein a concentration of the sodium hydroxide in the alkaline solution is within a range of 1 wt % to 10 ...

PROCESS FOR RECYCLING COBALT-BEARING MATERIALS

The present invention concerns the recovery of cobalt from cobalt-bearing materials, in particular from cobalt-bearing lithium-ion secondary batteries, from the spent batteries, or from their scrap. A process is divulged for the recovery of cobalt from cobalt-bearing materials, comprising the steps of: providing a converter furnace, charging slag formers and one or more of copper matte, copper-nickel matte, and impure alloy into the furnace, and injecting an oxidizing gas so as to smelt the charge in oxidizing conditions, thereby obtaining a molten bath comprising a crude metal phase, and a cobalt-bearing slag, and separating the crude metal from the cobalt-bearing slag, characterized in that the cobalt-bearing materials are charged into the furnace. This process is particularly suitable for recycling cobalt-bearing lithium-ion secondary batteries. Cobalt is concentrated in a limited amount of converter slag, from which it can economically be retrieved, together with other elements such as copper and/or nickel. 17-. (canceled)9. Process according to claim 8 , wherein more than 90% by weight of the cobalt present in the cobalt-bearing materials is recovered in the cobalt-bearing slag claim 8 , by adjusting the amount of oxidizing gas.10. Process for the recovery of cobalt from cobalt-bearing materials according to claim 8 , wherein the cobalt-bearing materials comprise secondary batteries claim 8 , spent batteries claim 8 , or their scrap.11. Process for the recovery of cobalt from cobalt-bearing materials according to claim 10 , wherein the cobalt in the slag amounts to between 2% and 20% by weight.12. Process for the recovery of cobalt from cobalt-bearing materials according to claim 8 , further comprising a step for recovering cobalt and copper from the slag.13. Process for the recovery of cobalt from cobalt-bearing materials according to claim 12 , wherein the step for recovering cobalt and copper from the slag comprises an acidic aqueous leaching operation.14. ...

PROCESSING OF LATERITE ORES

This invention relates to a method for processing nickel laterite ore, including the steps of obtaining a mined laterite ore from a mining operation ; and feeding the ore through a bulk sorter comprising a sensor arrangement and a diverting mechanism that separates the ore into a beneficiated stream of nickel laterite ore wherein the grade of nickel is higher than the grade of the ore fed into the bulk sorter for further processing by leaching or smelting; one or more low grade fractions of ore with a lower nickel grade than the beneficiated stream; and a waste fraction . This configuration efficiently separates lower grade patches in the run of mine ore, to either a low-grade stockpile or waste, and efficiently blends the selected high-grade ore to meet the specifications of the subsequent processing. 1. A method for processing nickel laterite ore , including the steps of:obtaining a mined laterite ore from a mining operation; and a beneficiated stream of nickel laterite ore wherein the grade of nickel is higher than the grade of the ore fed into the bulk sorter for further processing by leaching or smelting;', 'one or more low grade fractions of ore with a lower nickel grade than the beneficiated stream; and', 'a waste fraction., 'feeding the ore through a bulk sorter comprising a sensor arrangement and a diverting mechanism that separates the ore into2. The method claimed in claim 1 , wherein the sensor arrangement and diverting mechanism are configured to increase the grade of nickel in the beneficiated stream by more than 5% relative to the ore fed into the bulk sorter.3. The method claimed in claim 2 , wherein the grade of nickel in the beneficiated stream is increased by more than 10% relative to the ore fed into the bulk sorter.4. The method claimed in claim 3 , wherein the grade of nickel in the beneficiated stream is increased by more than 15% relative to the ore fed into the bulk sorter.5. The method claimed in claim 2 , wherein the beneficiated stream ...

Process for the recovery of metals from catalysts used in the hydrodesulfurization of hydrocarbons

La présente invention a pour objet la récupération du molydène, du vanadium, de l'aluminium ainsi que du cobalt et du nickel à partir de résidus des catalyseurs d'hydrodésulfuration. Suivant l'invention, on soumet les dits résidus de catalyseurs d'hydrodésulfuration d'hydrocarbures à une chloration au moyen d'un mélange de chlore gazeux, d'acide chlorhydrique et de vapeur d'eau dans des conditions telles que le molybdène et le vanadium soient volatilisés sous forme d'oxychlorures et l'aluminium sous forme de chlorure et on absorbe les produits ainsi volatilisés au moyen d'un milieu aqueux renfermant de l'acide chlorhydrique. La teneur en vapeur d'eau du mélange gazeux de chloration ne dépasse pas, de preférence, environ 15 % en volume par rapport au mélange gazeux total. The present invention relates to the recovery of molydene, vanadium, aluminum as well as cobalt and nickel from residues of hydrodesulfurization catalysts. According to the invention, the said residues of hydrocarbon hydrodesulfurization catalysts are subjected to chlorination by means of a mixture of chlorine gas, hydrochloric acid and water vapor under conditions such as molybdenum and vanadium are volatilized in the form of oxychlorides and aluminum in the form of chloride and the products thus volatilized are absorbed by means of an aqueous medium containing hydrochloric acid. The water vapor content of the chlorination gas mixture preferably does not exceed about 15% by volume relative to the total gas mixture.

富氧煤粉熔融还原红土镍矿工艺和熔融还原炉

本发明提供了一种富氧煤粉熔融还原红土镍矿工艺和熔融还原炉。该富氧煤粉熔融还原红土镍矿工艺包括：将红土镍矿进行脱水处理，使其含水量降至22％以下；将经过脱水处理的红土镍矿加入熔融还原炉内，同时加入熔剂，通过多通道喷枪将富氧气体、还原剂和燃料以180m/s‑280m/s的流速喷入熔融还原炉的熔池混合区，熔融还原炉的熔池内的温度提升至1450℃～1550℃，以使熔融还原炉内物料发生熔池熔炼反应并生成镍铁合金和熔炼炉渣；其中，熔池混合区同时含有镍铁合金和熔炼炉渣；从出渣口放出熔炼炉渣，从金属放出口放出镍铁合金。本发明提供了一种流程紧凑、劳动定员少、环保好、生产成本低的一种红土镍矿冶炼工艺以及装置。

Process for reduction smelting of materials containing base metals

A process for reduction smelting of copper-, nickel- or cobalt-containing materials in which such a material, at least partly in oxidic form is heated or combusted in finely divided form in a neutral or oxidizing flame to provide superheated particles. The superheated particles are then distributed onto a thin layer of coke. The materials in the particles are reduced in the thin layer of coke to metals or mattes or, in the case of iron, to wustite which forms a discardable slag with flux. Reduced product and slag form separate molten layers underneath the thin coke layer. All heat necessary for reduction and melting of product and slag is provided directly by the flame both in sensible heat in the superheated particles and by radiation.

一种红土镍矿选择性还原制备镍铁精矿的方法

本发明提供了一种红土镍矿选择性还原制备镍铁精矿的方法，所述方法具体包括以下步骤：将红土镍矿、还原剂和添加剂混合得到混合物；将混合物进行压块得到生团块；将生团块干燥后，在还原性气氛下进行选择性还原得到还原产物；将还原产物进行磨矿、磁选得到镍铁精矿。本发明的制备方法在降低选择性还原的温度的同时，抑制铁的还原，提高还原过程的选择性，从而达到强化腐殖土型红土镍矿中镍的直接还原效果，其制备的镍铁精矿具有较高的品位和回收率。

Improved leaching of base metals

Method of making high grade nickel mats from nickel-containing raw materials, at least partially refined by dry metallurgy

본 발명은 공정에 공급되는 농축물 및/또는 광석의 적어도 일부분을 먼저 건식야금법으로 니켈매트로 정련한 후 이를 서스펜젼 용융로에 공급하여 적당한 고등급 니켈 매트를 제조함으로써, 충전형 전환 없이 서스펜젼 용융로와 다른 어떤 노를 조합하여 고등급 니켈 매트 및 슬래그를 제조하는 방법에 관한 것이다. The present invention provides a suitable high grade nickel mat by refining at least a portion of the concentrates and / or ores supplied to the process by nickel plating first by dry metallurgy and then feeding them to a suspension melting furnace, without filling conversion. A method for producing high grade nickel mats and slags by combining a fusion furnace with any other furnace.

Способ получения богатого никелевого штейна

Изобретение относится к способу получения богатого никелевого штейна и шлака в установке, объединяющей печь взвешенной плавки и любую другую печь без конвертирования с периодической загрузкой таким образом, что по крайней мере часть концентрата и/или руды, загружаемой в процесс, сначала рафинируется пирометаллургически в никелевый штейн, который затем загружается в печь взвешенной плавки, в которой получают богатый никелевый штейн.

氢氧化镍钴制备硫酸镍的方法

本发明提供了一种氢氧化镍钴制备硫酸镍的方法。氢氧化镍钴中含有杂质锰、杂质铁、杂质钪、杂质铝和杂质铬，该方法其包括：S1，将氢氧化镍钴在硫酸、还原剂的作用下进行还原酸溶浸出，得到浸出液；S2，在浸出液中加入催化剂、氧化剂、中和剂，以同时进行催化氧化反应和中和反应，得到第一除杂溶液；S3，将第一除杂溶液进行萃取除杂，蒸发结晶，得到硫酸镍。本发明有效简化了硫酸镍的制备工序，并减少了设备投资占地，非常适合工业化大规模应用。

Method for recovering valuable metals from difficult-to-treat cobalt-nickel-containing tailings

本发明适用于有价金属的回收利用领域，提供一种从难处理含钴镍尾料中回收有价金属的方法，本发明通过采用常压酸浸和加压浸出两段浸出法，钴镍金属浸出率在99％以上，并且通过针铁矿法除铁，萃取除铜，硫化法沉铅镉除杂工艺的配合，除杂率达99.5％以上，钴镍料液纯度在99％以上，本发明相比单独在常压条件下加入氧化剂氧化浸出的处理方法，其处理成本可下降20％左右，处理过程中无明显有害气体如硫化氢、二氧化硫等排出，处理过程安全、环保、无危害。

A kind of side-blown furnace smelting nickel-iron equipment of lateritic nickel ore and technique

一种红土镍矿侧吹炉冶炼镍铁设备及工艺，属于镍铁生产设备及工艺。设备包括：干燥装置、预还原装置和熔炼装置；干燥装置、预还原装置和熔炼装置顺序连接；工艺步骤：1）干燥；2）预还原；3）熔炼；侧吹炉的余热烟气进入预还原和干燥系统，烟气中热量作用于预还原和干燥环节，余热利用，降低能耗；烟气中CO、H 2 还原性气体，在烘干窑预还原过程中提供预还原的还原剂；烟气中矿材物质沉降于干燥和预还原收尘系统中，再次返回熔炼系统，提高生产率，降低污染物排放。工艺流程简单，废气、余热利用充分，环境友好等优点。

Nickel recovery and cobalt from laterite ore

Изобретение относится к области металлургии, в частности к извлечению никеля и кобальта. Способ извлечения никеля и кобальта из никель- и кобальтсодержащих латеритных руд включает обжиг исходной руды в восстановительной атмосфере во вращающейся обжиговой печи для селективного восстановления никеля и кобальта, причем перед обжигом к исходной руде восстановитель либо не добавляют совсем, либо добавляют в количестве менее 2,5 мас.% и проводят выщелачивание восстановленной руды аэрированным аммиачным раствором карбоната аммония для выделения никеля и кобальта в выщелачивающий раствор. Затем отделяют выщелачивающий раствор от рудных хвостов и извлекают никель и кобальт жидкостной экстракцией органическим реагентом, осаждением или ионным обменом. Техническим результатом изобретения является повышение энергетического КПД с достаточной степенью извлечения никеля и кобальта. 15 з.п. ф-лы, 5 табл. ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 333 972 (13) C2 (51) ÌÏÊ C22B 23/00 (2006.01) C22B 3/14 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005127198/02, 30.01.2004 (72) Àâòîð(û): ÔÐÝÍÑÈÑ Áîéä Ðåéìîí (AU), ÐÅÉÄ Äæîí Ãðýõåì (AU), ÁÀÐÍÅÒÒ Ñòåôåí ×àðëüç Êðîìïòîí (AU) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 30.01.2004 (73) Ïàòåíòîîáëàäàòåëü(è): Áè Ýé÷ Ïè ÁÈËËÈÒÎÍ Ýñ Ýñ Ýì ÒÅÊÍÎËÎÄÆÈ ÏÒÈ ËÒÄ (AU) (43) Äàòà ïóáëèêàöèè çà âêè: 10.04.2006 R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 30.01.2003 AU 2003900387 (45) Îïóáëèêîâàíî: 20.09.2008 Áþë. ¹ 26 2 3 3 3 9 7 2 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 3656934 A, 18.04.1972. US 2002012621 A, 31.01.2002. FR 2433052 A, 07.03.1980. RU 2182187 C1, 10.05.2002. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 30.08.2005 2 3 3 3 9 7 2 R U (87) Ïóáëèêàöè PCT: WO 2004/067787 (12.08.2004) C 2 C 2 (86) Çà âêà PCT: AU 2004/000113 (30.01.2004) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á. Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé ...

Process for the treatment of nickel-containing raw material

Metal refining method and refining method

Method of removing sodium from chloride solutions

FIELD: technological processes. SUBSTANCE: invention relates to a process for removing sodium from a process stream of a hydrometallurgical process comprising ammonium chloride, nickel chloride, copper chloride, cobalt chloride and/or magnesium chloride. Method comprises the steps of: (a) withdrawing a selected flow of solutions and/or suspensions of the hydrometallurgical process from the process flow of the hydrometallurgical process, (b) evaporating water from the effluent stream to produce a saturated solution containing sodium, (c) crystallizing a portion of sodium chloride contained in a saturated solution containing sodium from said solution to obtain a sodium-depleted solution, and (d) returning the sodium-depleted solution to the process flow of the hydrometallurgical process. EFFECT: technical result is an increase in the economy and environmental safety of the process. 18 cl, 1 dwg, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 658 532 C1 (51) МПК C22B 3/22 (2006.01) C22B 3/44 (2006.01) C02F 9/10 (2006.01) C01D 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 3/22 (2006.01) (21)(22) Заявка: 2017107541, 01.09.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Оутотек (Финлэнд) Ой (FI) Дата регистрации: 21.06.2018 103449653 A, 18.12.2013. CN 102199704 A, 28.09.2011. RU 2005119098 A, 27.12.2006. EP 0492727 A1, 01.07.1992. 02.09.2014 FI 20145761 (45) Опубликовано: 21.06.2018 Бюл. № 18 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.04.2017 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2016/034769 (10.03.2016) C 1 C 1 FI 2015/050569 (01.09.2015) 2 6 5 8 5 3 2 Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" R U 2 6 5 8 5 3 2 (56) Список документов, цитированных в отчете о поиске: CN 101544437 A, 30.090.2009. CN Приоритет(ы): (30) Конвенционный приоритет: R U 01.09.2015 (72) Автор(ы): КОТИРАНТА Туукка (FI), ВАЛКАМА Кари (FI) ( ...

Improved leaching of base metals

A method for the leaching of base metals from oxide ores, the method characterised by the method steps of: a) Separating the ore to be leached into fine and coarse fractions or streams; b) Leaching the coarse fraction of the ore in a leach solution with a suitable leach agent for the leaching of the contained metals; and Utilising the fine ore fraction or part thereof to neutralise or partially neutralise the leach agent contained in a pregnant leach solution produced in step b), prior to passing some or all of the pregnant leach solution on for further refinement or other treatment as required.

The manifold type sintering method of low-grade laterite nickel ore

本发明涉及冶金领域，具体为低品位红土镍矿的耦合式烧结方法，低品位红土镍矿的耦合式烧结方法，进行干燥，脱除红土镍矿中的自由水；再进行破碎、粉磨，得到粉状红土镍矿；配加无烟煤、氯化钠和高岭土，再进行造块，然后进行干燥；进行还原焙烧，红土镍矿中的铝转化为可溶性的铝盐，铁部分被还原为金属铁，镍全部被还原为金属镍；进行破碎粉磨，加水加热浸出，然后过滤，得到含铝溶液和滤渣；本发明提供的低品位红土镍矿的耦合式烧结方法，实现镍的富集，铁和镍回收率搞，同时还可充分利用铝资源。

Method of regenerating vanadium-and-nickel-containing catalyst of hydrometallization of oil raw material

Recovering method of valuable metals from desulfurization waste catalyst

본 발명은 탈황폐촉매로부터 유가금속의 건식 회수 방법에 관한 것으로, 보다 상세하게는 폐촉매를 전기로에 넣고, 용융환원용 조성물을 넣어 용융환원시킨 후, 황을 포함하는 슬래그를 제거하는 단계; 상기 슬래그가 제거되어 바나듐, 니켈, 및 몰리브덴을 포함하는 합금철을 고주파 유도로에 넣고 산화제를 넣어 산화시켜, 니켈 및 몰리브덴 합금철을 수득하는 단계; 및 상기 니켈 및 몰리브덴 합금철이 제거된 바나듐 농축 슬래그를 알루미늄을 포함하는 테르밋에 넣고 환원제를 처리하여 바나듐 금속을 회수하는 단계를 포함한다. The present invention relates to a method for dry recovery of valuable metals from spent desulfurization catalysts, and more particularly, to a method comprising: putting a spent catalyst in an electric furnace, adding a composition for smelting reduction to smelt reduction, and then removing slag containing sulfur; The slag is removed and the ferroalloy containing vanadium, nickel, and molybdenum is put into a high-frequency induction furnace and oxidized by adding an oxidizing agent to obtain nickel and molybdenum ferroalloy; and adding the vanadium-enriched slag from which the nickel and molybdenum ferroalloy are removed to a thermite containing aluminum to treat the reducing agent to recover the vanadium metal.

Production method of crude copper in flash-smelting furnace

Method of processing copper-nickel converter matte

FIELD: metallurgy. SUBSTANCE: method includes loading flux into furnace with heated copper-nickel converter matte containing cobalt and iron, melting the flux and purging converter matte with oxygen-containing purging. As a flux, a mixture of B 2 O 3 and CaO in an amount of 30-35% of the mass of iron and cobalt in the converter matte at a ratio B 2 O 3 /CaO, equal to 4-9. Purging is carried out up to complete oxidation of iron and cobalt with their conversion into flux. EFFECT: increased cobalt recovery. 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 639 193 C2 (51) МПК C22B 23/02 (2006.01) C22B 15/00 (2006.01) C22B 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2016117075, 28.04.2016 (24) Дата начала отсчета срока действия патента: 28.04.2016 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 28.04.2016 (43) Дата публикации заявки: 02.11.2017 Бюл. № 31 1696545 A1, 07.12.1991. RU 2023038 C1, 15.11.1994. SU 211785 A1, 19.02.1968. US 6270554 B1, 07.08.2001. R U (54) Способ переработки медно-никелевого файнштейна (57) Реферат: Изобретение относится к переработке медноколичестве 30-35% от массы железа и кобальта в никелевого файнштейна. Способ включает файнштейне при соотношении В2О3/СаО, равном загрузку флюса в печь с нагретым медно4-9. Продувку ведут до полного окисления железа никелевым файнштейном, содержащим кобальт и кобальта с переходом их во флюс. и железо, плавление флюса и продувку Обеспечивается увеличение извлечения кобальта. файнштейна кислородсодержащим дутьем. В 1 табл. качестве флюса используют смесь В2О3 и СаО в Стр.: 1 C 2 C 2 Адрес для переписки: 660025, г. Красноярск, пр-т Красноярский рабочий, 95, СФУ, 3-я площадка, отдел правовой охраны и защиты интеллектуальной собственности, Пономаревой Л.В. 2 6 3 9 1 9 3 (56) Список документов, цитированных в отчете о поиске: SU 926053 A1, 07.05.1982. SU (45) Опубликовано: 20.12.2017 Бюл. № 35 2 6 3 9 1 9 3 (73) Патентообладатель(и): ...

Process for separating and recovering metals

A process for treating spent catalyst containing heavy metals, e.g., Group VIB metals and Group VIII metals is provided. In one embodiment after deoiling, the spent catalyst is treated with an ammonia leach solution under conditions sufficient to dissolve the group VIB metal and the Group VIII metal into the leaching solution, forming a leach slurry. After solid-liquid separation to recover a leach solution, chemical precipitation and solids repulping is carried out to obtain an effluent stream containing ammonium sulfate (Amsul), ammonium sulfamate, Group VB, Group VIB and Group VIII metals. Following sulfidation, the Group VIII metal is fully removed and Group VB and Group VI metals are partially removed from the Amsul stream. In the additional steps of oxydrolysis and iron precipitation, an effective amount of ferric ion at a pre-select pH is added to form insoluble complexes with the Group VB and Group VIB metals, which upon liquid-solid separation produces an effluent ammonium sulfate stream containing less than 10 ppm each of the Group VB and Group VIB metals.

Metals recovery from spent catalyst

An improved method for recovering metals from spent catalysts, particularly from spent slurry catalysts, is disclosed. The method and associated processes comprising the method are useful to recover catalyst metals used in the petroleum and chemical processing industries. The method generally involves a pyrometallurgical method and a hydrometallurgical method and includes forming a soda ash calcine of a caustic leach residue of the spent catalyst containing an insoluble Group VIII/Group VIB/Group VB metal compound combined with soda ash, and extracting and recovering soluble Group VIB metal and soluble Group VB metal compounds from the soda ash calcine.

Hydrometallurgical recovery of nickel values from laterites

The recovery of metal values from a metal bearing source such as ores is effected by treating the metal bearing source at an elevated temperature in the range of from about 750* to about 900* C. in a reducing atmosphere and in contact with at least one additive and thereafter extracting the metal bearing source in an acid solution whereby the desired metal is leached out of the metal bearing source and recovered.

Process for recovering vanadium accumulated on spent catalyst

This invention relates to a process for selectively recovering vanadium from spent catalysts which were used in hydrodesulufurization, hydrodemetallization, etc. of heavy oils until metals in said heavy oils accumulated thereon. More particularly, it relates to a process for recovering vanadium, and if desired, vanadium along with nickel from spent catalysts in such a way that said spent catalysts are chlorinated with chlorinating agent(s) at a temperature below 600° C. without being subjected to calcination so as to convert almost all the vanadium compounds to vanadium tetrachloride which is recovered in the form of a gas, including the chlorination of nickel compounds of nickel chloride which can also be recovered as such by solvent extraction.

Extracting cobalt from spent hydroprocessing catalysts with cyanide

A process is disclosed for recovery of cobalt from spent catalyst particles. The particles are roasted, leached with an ammonia/ammonium salt leach solution and then leached with a cyanide ion leach solution.

Leaching cobalt from spent hydroprocessing catalysts with sulfur dioxide

A process for enhancing recovery of cobalt from spent hydroprocessing catalysts when the spent catalyst particles are first roasted at between 400° C. and 600° C. and then contacted with a first aqueous solution of ammonia and an ammonium salt to recover nickel, cobalt, molybdenum and vanadium. The once-leached spent hydroprocessing catalysts are contacted with a second aqueous solution of sulfur dioxide. The metal values are precipitated with hydrogen sulfide and the precipitate is roasted with unroasted spent hydroprocessing catalysts.

Recovering metals from spent hydroprocessing catalysts

A process for recovering the metal values from spent hydroprocessing catalyst particles. The metal values will include at least one metal of Group VIII of the Periodic Table and at least one metal of Group Vb or Group VIb of the Periodic Table. The spent catalyst particles are first roasted at between 400° C. and 600° C. and then contacted with a first aqueous solution of ammonia and an ammonium salt forming a first pregnant liquor. The once-leached spent hydroprocessing catalysts are contacted with a second aqueous solution of sulfur dioxide forming a second pregnant liquor. The metal values are precipitated from the second pregnant liquor with hydrogen sulfide and the precipitate is roasted with unroasted spent hydroprocessing catalysts. The metal values of Group Vb and Group VIb in the first pregnant liquor are transferred into a first organic solution by liquid ion exchange. The first organic solution is stripped by an aqueous strip solution and the metal values separated by sequential precipitation. The metals of Group VIII are separated and purified by serial liquid ion exchange.

Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition

The invention provides a process for the selective recovery of aluminium, cobalt and platinum, and compounds thereof, from a catalyst composition including aluminium, cobalt and platinum, said proscess including the steps of treating the catalyst composition to selectively get ions of substantially only one of the aluminium. cobalt and platinum into solution, recovering, in separate process steps, the thus treated aluminium, cobalt, or platinum in salt or metal form, and repeating the treating and recovering steps for each of the aluminium, cobalt and platinum. The treating steps may include process steps such as leaching, washing, dissolving, stripping, and the like. The recovery steps may include filtration, precipitation, separation, flocculation, and the like.

Process for the recovery of value metals from base metal sulfide ores

A process for leaching a value metal from a base metal sulfide ore, comprising the step of leaching the ore with a lixiviant comprising a chloride, an oxidant and hydrochloric acid is disclosed. The leaching is controlled, by use of low concentrations of hydrochloric acid and a redox potential, to effect formation of hydrogen sulfide from the base metal sulfide ore. The hydrogen sulfide is stripped from the leach solution, thereby reducing the amount of sulfate generated in the leach to very low levels. The leaching may also be conducted to limit the co-dissolution of platinum group metals and gold with the base value metals. The leach forms a value metal-rich leachate and a solids residue. The solids residue may be subsequently leached to recover the platinum group metals and gold. The value metal-rich leachate can be is oxidized and neutralized to recover the value base metals. In an embodiment, the chloride is magnesium chloride and lixiviant solution is regenerated.

Leaching nickel, cobalt, molybdenum, tungsten, and vanadium from spent hydroprocessing catalysts

A process for removing nickel, cobalt, molybdenum, and vanadium from spent hydroprocessing catalyst particles by roasting the catalyst at between 400° C. and 600° C. and leaching the catalyst particles with an aqueous solution of ammonia and an ammonium salt.

METHODS FOR CONCENTRATING AND RECOVERING FERRO NICKEL FROM NICKEL CONTAINING RAW MATERIAL, METHODS FOR RECOVERING NICKEL CONCENTRATE FROM THE CONCENTRATED FERRO NICKEL AND REUSING METHOD OF Fe CONTAINING SOLUTION WASTED FROM THE METHODS

본 발명은 니켈 및 철을 함유하는 원료로부터 페로니켈을 고농도로 농축하는 방법에 관한 것으로서, 구체적으로는 니켈 철 함유 원료를 환원한 후 물을 가하여 슬러리화하는 슬러리화 단계; 상기 슬러리화 단계에서 얻어진 환원된 니켈 철 함유 원료의 슬러리에 상기 환원된 니켈 철 함유 원료 내의 (Fe+Ni) 몰수에 대한 0.5-1.5배 몰수의 염산 또는 0.25-0.75배 몰수의 황산을 투입하여 페로니켈 석출 및 철 침출 반응을 동시에 일으키는 산 처리단계; 상기 산 처리단계에서 얻어진 용액으로부터 페로니켈을 포함하는 고형분을 여과 분리하여 철 함유 용액을 제거하는 여과 분리단계; 및 상기 여과 분리단계의 페로니켈을 포함하는 고형분을 슬러리화하여 상기 환원된 니켈 철 함유 원료와 혼합하여 슬러리화하고, 상기 산 처리단계 및 여과 분리단계를 수행하여 페로니켈을 농축하는 농축단계를 포함한다. 나아가, 본 발명은 이러한 니켈 농축물로부터 고순도 니켈을 회수하는 방법 및 니켈 농축물 회수 과정에서 발생하여 폐기되는 철 함유 용액을 재활용하는 방법을 제공한다. 본 발명에 의해 니켈 철을 함유하는 원료로부터, 특히 니켈 품위가 낮은 광석으로부터　Ni을 가장 효과적으로 농축 회수할 수 있으며, 이로부터 니켈을 회수할 수 있다. 나아가, 본 발명의 공정으로부터 발생되는 철 함유 용액을 재활용함으로써 폐기물의 발생을 최소화할 수 있다.

Method for purification of nickel compounds from cobalt

Изобретение относитс  к гидрометаллургии никел  и позвол ет повысить степень очистки никел  от кобальта с одновременным увеличением выхода очищенного продукта. Сущность изобретени  заключаетс  в том, что катионит КМ 2п обрабатывают 0,2 М раствором сульфата никел , промывают водой, обрабатывают 0,4 М раствором гидроксида натри  и затем 0,3 М раствором персульфата аммони  и вновь промывают водой. Подготовленный таким образом перед сорбцией сорбент позвол ет повысить коэффициент очистки до 100.4 табл. This invention relates to nickel hydrometallurgy and allows an increase in the degree of purification of nickel from cobalt with a simultaneous increase in the yield of the purified product. The essence of the invention is that the cation exchanger KM 2n is treated with a 0.2 M solution of nickel sulfate, washed with water, treated with a 0.4 M solution of sodium hydroxide and then with a 0.3 M solution of ammonium persulfate and again washed with water. The sorbent prepared in this way prior to sorption allows the purification coefficient to be increased to 100.4 table.

Enrichment method containing cobalt, nickel minerals

本发明公开了一种含钴、镍矿的富集方法。该富集方法是先将含钴、镍矿进行还原处理，然后通过磁选获得富集的钴、镍矿。这种方法可以解决现有的钴、镍矿富集方法存在能耗高，钴、镍选出率低的问题。

Comprehensive utilization method for iron-aluminum slag

本发明属于镍钴湿法冶金技术领域，具体涉及一种铁铝渣综合利用的方法。本发明对铁铝渣进行选择性浸出，溶解出渣中的镍、钴、铝；然后向镍、钴、铝浸出液中加入硫化钠，沉淀回收溶液中的镍、钴，并得到硫酸铝粗溶液；硫酸铝粗溶液通过加入氧化剂及氢氧化钠，去除其中的铁后，再补充加入硫酸钠盐，将溶液配制成生产硫酸铝钠的原液；原液经过蒸发，结晶得到硫酸铝钠产品。本发明将原来的危险固废铁铝渣经过处理，不仅回收了对环境有危害的高价镍钴金属，并且利用其中的铝生产出高价值的硫酸铝钠，该方法工艺简单易行，成本低廉，在取得经济效益的同时，又将环境污染因素消除，具有良好的社会效益。

Method for catalytically extracting vanadium, molybdenum and nickel from waste catalyst

本发明公开了一种催化提取废旧催化剂中钒钼镍的方法，所述方法在常压下将氧化性气体经曝气通入废旧催化剂、硫酸铵溶液和添加剂混合而成的反应浆料中，实现废旧催化剂中钒、钼和镍的同步高效浸出，得到了含有钒、钼和镍的硫酸铵浸出液以及含铝尾渣，实现了废旧催化剂的资源化利用。

Production method of high purity nickel mat and metalized sulfide mat

The method of obtaining low-iron matte

А 2016117075 ко РОССИИСКАЯ ФЕДЕРАЦИЯ (19) (11) ааа аа д &и3 В Пт Ш (50) МПК С22В 2302 (2006.01) С22В 15/00 (2006.01) С22В 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016117075, 28.04.2016 (71) Заявитель(и): Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный Приоритет(ы): (22) Дата подачи заявки: 28.04.2016 (43) Дата публикации заявки: 02.11.2017 Бюл. № 31 университет" (КО) Адрес для переписки: (72) Автор(ы): 660025, г. Красноярск, пр-т Красноярский Власов Олег Анатольевич (КО), рабочий, 95, СФУ, 3-я площадка, отдел правовой Мечев Валерий Валентинович (КО), охраны и защиты интеллектуальной Мечев Павел Валерьевич (ВО) собственности, Пономаревой Л.В. (54) Способ получения маложелезистого файнштейна, (57) Формула изобретения Способ получения маложелезистого файнштейна, включающий загрузку флюса, продувку сульфидной массы воздухом, плавление флюса, отличающийся тем, что в качестве флюса используют смесь В>Оз/СаО при 4-9, в количестве 30-35% от массы железа и кобальта в файнштейне. Стр.: 1 па дог э9 гос У

Method for removing manganese from wastewater

Method for preparing high purity ferronickel

According to the present invention, there is provided a method for producing a reducing raw material, comprising the steps of: reducing nickel and iron containing raw materials to hydrogen gas to obtain a reducing raw material; Adding the reducing raw material to water to form a slurry; Separating the slurried reducing raw material into a magnetic separation separating reducing raw material and a non-magnetic separating reducing raw material; Leaching the slurried reducing raw material with an acid to obtain a leaching solution containing nickel and iron; And feeding the magnetic separation-reducing raw material to the nickel-and-iron-containing leaching solution as a raw material for precipitation so that the iron of the precipitation reducing raw material is replaced with nickel in the leaching solution to precipitate ferronickel. / RTI > Thereby, a raw material for precipitation for high purity can be obtained, and high purity ferronickel can be produced by using such a raw material for precipitation reduction.

Microwave treatment of ores

FIELD: metallurgy. SUBSTANCE: invention refers to ore treatment by means of microwave energy to facilitate the succeeding treatment of ore. Impulses of microwave energy with a duration of less, than 1 second each are used to extract valuable elements, such as metals, out of particles of ore of a basic dimension of 15 and less centimeters. EFFECT: invention facilitates structural change of ore particles without essential change of their mineralogy and composition of ore due to different heat extension of minerals in ore particles under the influence of microwave energy; it also facilitates creation of portions with high stress/tension and microcracking in ore particles. 20 cl, 1 ex ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 329 310 (13) C2 (51) ÌÏÊ C22B 1/00 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2004139108/02, 30.05.2003 (72) Àâòîð(û): ÁÀÒÒÅÐÕÝÌ Ðîáèí Äæîí (AU), ÝÇÄÝÉË Ëþñè (AU), ØÎ Ðåéìîíä Óîëòåð (AU), ÊÐÎÑÑ Êðèñòîôåð Ðîáèí (GB) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 30.05.2003 (73) Ïàòåíòîîáëàäàòåëü(è): ÒÅÊÍÎËÎÄÆÈÊÀË ÐÅÑÎÐÑÈÇ ÏÒÈ ËÒÄ. (AU) (43) Äàòà ïóáëèêàöèè çà âêè: 20.07.2005 R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 31.05.2002 AU PS2734 (45) Îïóáëèêîâàíî: 20.07.2008 Áþë. ¹ 20 2 3 2 9 3 1 0 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: SU 1326334 À1, 30.07.1987. WO 92/18249 À1, 29.10.1992. ÑÀ 2277383 À1, 15.01.2001. US 5824133 À, 20.10.1998. RU 2026991 C1, 20.01.1995. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 31.12.2004 2 3 2 9 3 1 0 R U (87) Ïóáëèêàöè PCT: WO 03/102250 (11.12.2003) C 2 C 2 (86) Çà âêà PCT: AU 03/00681 (30.05.2003) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á. Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Þ.Ä.Êóçíåöîâó, ðåã.¹ 595 (54) ÌÈÊÐÎÂÎËÍÎÂÀß ÎÁÐÀÁÎÒÊÀ ÐÓÄ (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê îáðàáîòêå ðóä ïðè ïîìîùè ìèêðîâîëíîâîé ýíåðãèè äë îáëåã÷åíè èõ ïîñëåäóþùåé îáðàáîòêè. Äë âûäåëåíè èç ...

Utilize the method for Treatment of Metal Surface waste preparation nickel plate

本发明提供一种利用金属表面处理废物制备镍板的方法，包括以下步骤：预处理，除铁、铜、铬，蒸发，萃取除杂，过滤除油、二次浓缩，以及电沉积，对二次浓缩后的硫酸镍溶液执行镍电沉积，在阴极得到镍板，阳极产生氧气且阳极液返回二次浓缩工段中，其中电沉积液为二次浓缩后的硫酸镍溶液。本发明既可实现对金属表面处理废物的无害化处理，又可充分回收金属表面处理废物中的镍元素进行再利用。

Method of metal extraction from containing materials

FIELD: metallurgy. SUBSTANCE: invention relates to the method due to which the valuable metals and possible precious metals are extracted from the mixed matte obtained in the melting furnace. Valuable metals in the material obtained in the melting furnace are leached by the sour solution containing sulphate and chloride from which each metal is extracted using a solvent. When leaching all precious metals contained in this material remain in non-dissolved form in the residue after leaching from which they are leached by the solution containing hydrochloric acid in oxidising conditions and they separated from solution by means of solvent extraction. EFFECT: higher adjustability of the sulphur and iron content at extraction of valuable and precious metals. 14 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 561 621 C1 (51) МПК C22B 23/00 (2006.01) C22B 15/00 (2006.01) C22B 11/00 (2006.01) C22B 3/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014107772/02, 28.08.2012 (24) Дата начала отсчета срока действия патента: 28.08.2012 Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 27.08.2015 Бюл. № 24 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 31.03.2014 (86) Заявка PCT: 2 5 6 1 6 2 1 (56) Список документов, цитированных в отчете о поиске: RU 2149195 C1, 20.05.2000. SU 458600 A,30.01.1975. US 4828809 A, 09.05.1989. US 4097271 А, 27.06.1978. JP 54155116 А, 06.12.1979. GB 1431590 А, 07.04.1976. RU 2252270 С1, 20.05.2005 (73) Патентообладатель(и): Оутотек Оюй (FI) R U 29.08.2011 FI 20110279 (72) Автор(ы): ХИЕТАЛА Кари (FI), ПААТЕРО Эркки (FI), ХУЛЬТХОЛЬМ Стиг-Эрик (FI), КАРОНЕН Янне (FI), МИЕТТИНЕН Вилле (FI), РУОНАЛА Микко (FI) (87) Публикация заявки PCT: C 1 C 1 FI 2012/050821 (28.08.2012) WO 2013/030450 (07.03.2013) R U 2 5 6 1 6 2 1 Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" (54) СПОСОБ ИЗВЛЕЧЕНИЯ МЕТАЛЛОВ ИЗ СОДЕРЖАЩЕГО ИХ МАТЕРИАЛА (57) Реферат: ...

System and method for directly reducing laterite nickel ore through self reforming by adopting hydrogen shaft furnace process and wet process

本发明涉及一种氢气竖炉湿法自重整直接还原冶炼红土镍矿的系统和方法。所述系统中，脱硫脱碳装置具有还原气入口、脱硫脱碳还原气出口，加湿器具有脱硫脱碳还原气入口、加湿还原气出口，脱硫脱碳还原气入口与脱硫脱碳装置的脱硫脱碳还原气出口连接，加热炉具有加湿还原气入口、热还原气出口，加湿还原气入口与加湿器的加湿还原气出口连接，氢气竖炉具有红土镍矿入口、热还原气入口、还原金属球团出口、出气口，热还原气入口与加热炉的热还原气出口连接。本发明采用还原气湿重整技术，利用红土镍矿还原产生的铁和镍为催化剂，成本低，自重整效率大大提高，避免了催化剂长期循环使用时由于析碳原因造成的催化剂失活现象，提高了红土镍矿的冶炼效率。

An improved process for heap leaching of nickeliferous oxidic ore

본 발명은 더미 침출에 의해 니켈 함유 산화 광석으로부터 니켈 및 코발트를 회수하는 방법에 관한 것으로서, a) 하나 이상의 더미에 니켈 함유 산화 광석을 형성하는 단계, b) 30 g/l을 초과하는 총 용존 고형물 농도를 갖는 산 보충 고염수를 분리액으로서 포함하는 침출 용액을 이용하여 상기 광석을 침출하는 단계, 및 c) 결과로서 얻은 더미 침출수(leachate)로부터 니켈과 코발트를 회수하는 단계를 포함하는 니켈 및 코발트 회수 방법에 관한 것이다. The present invention relates to a method for recovering nickel and cobalt from nickel oxide ores by dummy leaching, comprising the steps of: a) forming nickel oxide ores in at least one pile, b) total dissolved solids greater than 30 g / l Leaching the ore using a leaching solution comprising an acid supplemented high brine having a concentration as a separation solution, and c) recovering nickel and cobalt from the resulting dummy leachate. It relates to a recovery method. 더미 침출, 니켈 함유 산화 광석, 라테라이트, 습식 야금법 Pile Leach, Nickel Oxide Ore, Laterite, Wet Metallurgy

Method for enrichment-recovering ferronickel from raw material containing nickel, method for recovering nickel from enriched ferronickel, and method for recycling solution containing iron produced from same

本发明涉及一种从含镍和铁的原材料富集高密度镍铁的方法。更具体来说，该方法包括以下步骤：将含镍和铁的原材料还原，然后通过加入水来制备浆料；通过向浆料制备中所得的经还原的含镍和铁的原材料的浆料中加入盐酸或硫酸来处理所述浆料以同时进行镍铁分离和铁浸提反应，盐酸的摩尔量是经还原的含镍和铁的原材料中（Fe+Ni）的摩尔量的0.5-1.5倍，硫酸的摩尔量是经还原的含镍和铁的原材料中（Fe+Ni）的摩尔量的0.25-0.75倍；过滤和分离浆料处理中所得的溶液中的含镍铁固体，来去除含铁溶液；以及从过滤和分离固体物质所得的含镍铁固体中制备浆料，并将浆料与经还原的含镍和铁的原材料混合，以制备浆料，并通过进行浆料的酸处理和固体物质的过滤的分离来富集镍铁。此外，本发明涉及一种从镍浓缩物回收高纯度镍的方法以及再利用镍浓缩物回收过程中产生并被浪费的含铁溶液的方法。

Multi-metal vulcanization composite converting treatment process

本发明公开了一种多金属物硫化复合吹炼处理工艺。本发明采用的方法为：1)熔硫：将硫磺投入硫磺液化设备，进行熔化，得液态硫磺；2)加料：从硫化复合吹炼炉上端加料口按比例加入多金属物、焦炭和硅石；3)硫化吹炼：采取硫化喷枪硫化+侧枪吹炼或硫化喷枪硫化+底枪吹炼；4)放渣；5)吹扫硫磺；6)吹炼；7)放渣；8)取样；9)出炉：成分达标后，从合金口将高冰产物排放到钢包内，将后期渣和部分高冰产物留在炉内，作为下一炉的底料，高冰产物中的Fe含量控制在7‑15％。本发明对多金属物进行硫化及吹炼除铁，使得熔体中S含量在20‑30％，除铁率大于92％。

Method of separation and extraction of nickel, cobalt and copper from sulfide floatation concentrate stimulated by chlorine through oxidizing leaching with sulfuric acid under pressure

FIELD: hydrometallurgy; extraction of valuable components of nickel, cobalt and copper from sulfide floatation concentrate. SUBSTANCE: proposed method includes stages of production of suspension of floatation concentrate in sulfuric acid; suspended floatation concentrate is subjected to leaching with use of chlorine at atmospheric pressure followed by and elevated temperature in acid medium. After separation of liquid and solid agents and cleaning and removal of cobalt, solution containing nickel is subjected to electrolysis for extraction of cathode nickel from it. EFFECT: enhanced efficiency; reduction of time required for performing process and number of technological stages. 17 cl, 3 dwg, 4 tbl, 4 ex ззЗГссс ПЧ Го (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2 221 881 ' (51) МПК? 13) СЛ С 22 В 3/08, 23/00, 15/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2002113102102, 26.02.2001 (24) Дата начала действия патента: 26.02.2001 (30) Приоритет: 18.09.2000 1$ 09/664,475 (46) Дата публикации: 20.01.2004 (56) Ссылки: Ц$ 5232491 А, 03.08.1993. ЗЦ 1696534 АЛ, 07.12.1991. 4Р 10-140257 А, 26.05.1998. \/О 96/29439 АЛ, 26.09.1996. (85) Дата перевода заявки РСТ на национальную фазу: 17.05.2002 (86) Заявка РСТ: СА 01100227 (26.02.2001) (87) Публикация РСТ: М/О 02/24966 (28.03.2002) (98) Адрес для переписки: 103735, Москва, ул. Ильинка, 5/2, ООО "Союзпатент", пат.пов. Н.Н.Высоцкой (72) Изобретатель: КЕРФУТ Дерек Дж. Э. (СА), КРАУЗ Эберхард (СА), ЛАВ Брюс Джон (СА), СИНГХАЛ Эйвинаш (СА) (73) Патентообладатель: ИНКО ЛИМИТЕД (СА) (74) Патентный поверенный: Высоцкая Нина Николаевна (54) СПОСОБ ВЫДЕЛЕНИЯ, ЭКСТРАКЦИИ И ИЗВЛЕЧЕНИЯ НИКЕЛЯ, КОБАЛЬТА И МЕДИ ИЗ СУЛЬФИДНОГО ФЛОТАЦИОННОГО КОНЦЕНТРАТА, СТИМУЛИРУЕМОГО ХЛОРОМ, ПУТЕМ ОКИСЛИТЕЛЬНОГО ВЫЩЕЛАЧИВАНИЯ СЕРНОЙ КИСЛОТОЙ ПОД ДАВЛЕНИЕМ (57) Реферат: Изобретение Относится К гидрометаллургическому способу выделения, экстракции и извлечения ценных компонентов никеля, кобальта и меди из ...

Method for manufacturing micro nickel powder using wet reduction method

본 발명은 습식 환원법을 이용하는 미세 니켈 분말 제조방법에 관한 것으로, 상세하게는 종래 환원법과 상이한 1 스텝 공정으로 마이크로미터 단위 사이즈의 구형 중공 그래핀 형태의 미세 니켈 분말을 제조하는 방법에 관한 것이다. 본 발명의 습식 환원법을 이용하는 미세 니켈 분말 제조방법은 기존 습식 공정에 대비하여 대량 생산을 위한 공정 단계를 획기적으로 절감함에 따라 에너지 및 폐수를 절감하고, 미세 니켈 분말을 합성하여 MLCC 및 연료전지, 수전해 전극 등에 활용하기 위한 박형 전극 제조 공정에 쉽게 활용할 수 있는 효과가 있다. The present invention relates to a method for manufacturing fine nickel powder using a wet reduction method, and more particularly, to a method for manufacturing fine nickel powder in the form of spherical hollow graphene having a micrometer unit size in a one-step process different from the conventional reduction method. The method for manufacturing fine nickel powder using the wet reduction method of the present invention reduces energy and wastewater by dramatically reducing the process steps for mass production compared to the existing wet process, and synthesizes fine nickel powder to produce MLCC, fuel cell, and faucet It has the effect that it can be easily used in the manufacturing process of thin electrodes for use in sea electrodes.

The production method that a kind of use potential control is continuously leached

本发明涉及一种采用电位控制法连续浸出的生产方法，采用三只以上反应釜依次串联连接，生产步骤为：配料进料：将钴精矿或氢氧化钴矿料与水按质量比1：3.5的比例在第一反应釜内浆化混匀后以15m³/h的流速泵入第二反应釜；加酸反应：搅拌状态下向第二反应釜加入硫酸，控制pH值0.5‑1.0；二氧化硫还原：在电位值100‑350mv实时在线监控，向第三反应釜底部通入二氧化硫；电位仪控制二氧化硫加入量，控制反应体系的氧化还原电位；出料：反应釜反应结束的料液压滤流入中转槽，料液中二氧化硫残留浓度小于0.1g/l，浸出渣含钴小于0.10%。

Method for reducing Ausmelt furnace melt

一种减少澳斯麦特炉熔融物的方法，属于有色冶金技术领域，在本发明的物料配料比例下和渣型控制下，熔池温度在1300～1400℃；通过主控操作人员操控喷枪，尽量下插到超过正常范围的高度，一般为700～800mm左右，此时澳斯麦特炉正常的熔池面高度为2200mm～2500mm。如果在允许的范围内，喷枪在此位置上停留5～8分钟，采用喷枪处理此处的熔融物，达到减少澳斯麦特炉熔融物的目的。使澳斯麦特炉可以达到高效，稳定的生产；澳斯麦特炉渣口、镍口均排放正常，而且渣口排放时候不会出现低冰镍，不会带来安全生产隐患；增加了澳斯麦特炉的液态熔池空间大小，澳炉熔化物料正常，改善了澳斯麦特炉的炉况，保证了澳斯麦特炉生产正常。

Operation method of dezincification plant

Method for recovering nickel from nickel containing raw material

본 발명은 니켈을 함유하는 원료로부터 니켈을 효과적으로 회수하는 방법에 관한 것으로서, 니켈 함유 원료의 (Fe+Ni) 몰수에 대하여 2배 이상의 몰수의 수소를 함유하는 환원가스를 사용하여 550-950℃의 온도에서 니켈 함유 원료를 환원하는 환원단계; 환원된 니켈 함유 원료를 슬러리화하는 슬러리화 단계; 무산소 상태의 반응기에 슬러리화된 니켈 함유 원료 및 산을 투입하여 상기 니켈 함유 원료를 용해하여 니켈을 침출시키는 침출단계; 상기 침출단계에 의해 얻어진 용액으로부터 고액 분리기에 의해 잔사 슬러지를 여과 제거하여 니켈 함유 용액을 얻는 고액분리단계; 및 상기 니켈 함유 용액으로부터 철을 제거하는 철 제거단계를 포함한다. 본 발명에 의해 니켈 회수가 일반적인 설비의 재질에 대하여도 적용할 수 있는 상대적으로 낮은 온도(25-80℃) 및 상압 하에서 수행할 수 있고, 고속 산 침출이 가능하며, 안정적이고 효과적으로 회수할 수 있으며, 또한, 니켈을 회수함에 있어서 수소 사용량을 절감할 수 있어 경제적이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for effectively recovering nickel from a nickel-containing raw material, wherein a reducing gas containing at least twice the number of moles of hydrogen relative to the (Fe + Ni) mole of the nickel-containing raw material is used at a temperature of 550-950 ° C. Reducing the nickel-containing raw material at a temperature; A slurrying step of slurrying the reduced nickel-containing raw material; Leaching step of leaching nickel by dissolving the nickel-containing raw material by adding a slurry-containing raw material and acid to the reactor in an oxygen-free state; A solid-liquid separation step of filtering and removing the residue sludge from the solution obtained by the leaching step by a solid-liquid separator; And an iron removing step of removing iron from the nickel-containing solution. According to the present invention, nickel recovery can be performed at a relatively low temperature (25-80 ° C.) and atmospheric pressure, which can be applied to materials of general installations, high-speed acid leaching, stable and effective recovery, and In addition, it is economical to reduce the amount of hydrogen used in recovering nickel.

Method and apparatus for melting of sulfides of non-ferrous metals in levitation melting furnace for producing of matte with increased content of non-ferrous metal and waste slag

FIELD: metallurgy. SUBSTANCE: method involves feeding carbon-bearing reducing substance through tuyeres into lower section of levitation melting furnace to part of furnace having reduced section. EFFECT: simplified process. 12 cl, 7 dwg 2242527 С2 КО РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (51) МПК7 РО (11) о м. {М а (13) С? А 3} С 22 В 15100, Е 27 В 15/00 < < (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2001133384/02, 04.05.2000 (24) Дата начала отсчета срока действия патента: 04.05.2000 (30) Конвенционный приоритет: 14.05.1999 Е! 991110 (43) Дата публикации заявки: 10.07.2003 (45) Опубликовано: 20.12.2004 (56) Список документов, цитированных в отчете о поиске: УР 9316562 А, 12.09.1997. ЗЦ 1601168 АЛ, 23.10.1990. $Ц 1739658 А\, 20.08.1996. И$ 5662730 А, 02.09.1997. $ 4857104 А, 15.08.1989. 4$ 5458672 А, 17.10.1995. (85) Дата перевода заявки РСТ на национальную фазу: 14.12.2001 (86) Заявка РСТ: Е|! 00/00396 (04.05.2000) (87) Публикация РСТ: М/О 00/70103 (23.11.2000) Адрес для переписки: 103735, Москва, ул. Ильинка, 5/2, ООО "Союзпатент", пат.пов. Ю.В.Пинчуку, рег.№ 656 (72) Автор(ы): КОЙО Илкка (Е), КЮТЕ Маркку (2-1) (73) Патентообладатель(и): ОУТОКУМПУ ОЙЙ (Е!) (74) Патентный поверенный: Пинчук Юрий Васильевич (54) СПОСОБ И УСТРОЙСТВО ДЛЯ ПЛАВКИ СУЛЬФИДОВ ЦВЕТНЫХ МЕТАЛЛОВ В ПЕЧИ ВЗВЕШЕННОЙ ПЛАВКИ ДЛЯ ПОЛУЧЕНИЯ ШТЕЙНА С ВЫСОКИМ СОДЕРЖАНИЕМ ЦВЕТНОГО МЕТАЛЛА И ОТВАЛЬНОГО ШЛАКА Опубликовано на СО-КОМ: ММОЗА ВЕС 2004012 МКЕО2004012 ММАА - Досрочное прекращение действия патента СССР или патента Российской Федерации на изобретение из-за неуплаты в установленный срок пошлины за поддержание патента в силе (21) Регистрационный номер заявки: 2001133384 Дата прекращения действия патента: 05.05.2006 Извещение опубликовано: 20.12.2007 БИ: 35/2007 Страница: 1 д сячсусс ПЧ сэ

A method for recovering cobalt and lithium from organic wastesludge including LiCoO2

본 발명은 LiCoO 2 를 함유하는 유기성 폐슬러지로부터 코발트 및 리튬 회수방법에 관한 것으로서, 보다 상세하게는 LiCoO 2 를 함유하는 유기성 폐슬러지를 고온에서 열분해하여 얻어진 LiCoO 2 분체를 무기산 및 과산화수소가 용해되어 있는 수용액에 용해한 다음, 옥살산을 첨가하여 코발트를 옥살산 코발트의 형태로 침전시켜 코발트를 회수하고, 그 여액에 탄산소다를 첨가하여 리튬을 회수하는 방법에 관한 것으로, 상기 회수 방법을 통해 코발트 분리시 불필요한 중화과정을 거치지 않으며, 짧은 시간에 고농도 코발트 수용액을 제조하여 코발트 회수 효율를 최대화하고, 고품질의 코발트 및 리튬을 회수하고, 또한 최종 폐액의 양이 적고 독성 물질을 제거한 환경 친화적 특성이 있어, 용이하게 코발트 및 리튬을 회수할 수 있다. The present invention relates to a method for recovering cobalt and lithium from an organic waste sludge containing LiCoO 2 , and more particularly, LiCoO 2 powder obtained by pyrolysing organic waste sludge containing LiCoO 2 at high temperature in which inorganic acid and hydrogen peroxide are dissolved. After dissolving in aqueous solution, cobalt is precipitated in the form of oxalic acid cobalt by adding oxalic acid, and cobalt is recovered, and sodium bicarbonate is added to the filtrate to recover lithium. It does not go through the process and manufactures high concentration cobalt solution in a short time to maximize the cobalt recovery efficiency, recover high quality cobalt and lithium, and also has the environmentally friendly characteristics of low amount of the final waste liquid and elimination of toxic substances, thereby making it easy to cobalt and Lithium can be recovered.

Method of producing manganese, cobalt, nickel or zinc difluoride

Изобретение относитс  к технологии получени  фтористых солей и может быть использовано дл  производства безводных дифторидов марганца, кобальта, никел  или цинка, примен емых в лазерной технике и магнитооптике. Цель изобретени  - повышение чистоты продукта за счет исключени  содержани  примесей кислорода и воды. Дл  этого готов т смесь гидроксокарбонатов марганца, кобальта, никел  или цинка и фторида аммони  при мол рном соотношении компонентов 1:(12-16), после чего смесь подвергают термообработке. Термообработку ведут ступенчато: до 180-200°С со скоростью 2-5°С/мин, до 350-400°С со скоростью 10-15°С/мин, с последующей выдержкой смеси при 350-400°С до окончани  газовыделени . 1 з.п.ф-лы, 3 табл. The invention relates to the technology of producing fluoride salts and can be used for the production of anhydrous manganese, cobalt, nickel or zinc difluorides used in laser technology and magneto-optics. The purpose of the invention is to increase the purity of the product by eliminating the content of oxygen and water impurities. For this purpose, a mixture of manganese, cobalt, nickel or zinc hydroxocarbonates and ammonium fluoride is prepared at a molar ratio of components 1: (12-16), after which the mixture is subjected to heat treatment. Heat treatment is carried out in steps: up to 180-200 ° C at a rate of 2-5 ° C / min, up to 350-400 ° C at a speed of 10-15 ° C / min, followed by keeping the mixture at 350-400 ° C until the end of the gas evolution. 1 hp ff, 3 tab.

A kind of hydrometallurgical copper recovery of copper cobalt slag, cobalt method

本发明公开了一种铜钴渣的湿法冶金回收铜、钴方法。该方法首先采用还原剂还原磨矿，然后酸浸达到含铜钴的浸出液，再用铁粉置换得到海绵铜、用草酸沉淀得到草酸钴。本发明提供的方法，对铜钴渣中的铜、钴浸出率较高，与其他杂质分离较好，对环境污染小、工艺简单、所需设备成本低。

Method for mfg. hydrogen-storage alloy for Ni-H alkaline accumulator

目的是提供能飞跃地提高镍-氢碱性蓄电池在低温下的高效放电特性的贮氢合金的制造方法。该方法包括：在60℃以上的碱性处理溶液中浸渍贮氢合金，将合金表面进行碱性处理的第一个工序；在上述碱性处理个工序后，在上述碱性处理溶液中添加pH调整剂和还原剂，使溶液pH达到4～9，将上述贮氢合金表面进行处理的第二个工序；以及在上述第二个工序结束后，将贮氢合金洗净的第三个工序。

Improved leaching of base metals

FIELD: metallurgy. SUBSTANCE: invention refers to hydrometallurgy, particularly to method of leaching of base metals out of oxidised ores, for example, out of laterite ore, at extraction of nickel and/or cobalt by heap leaching. The method consists in (a) dividing ore to small and large fractions, (b) leaching of large fraction of ore in a leaching solution with a corresponding leaching agent for leaching out metals contained therein, and (c) using small fractions of ore or part of it for neutralisation or partial neutralisation of the leaching agent contained in a saturated leaching solution obtained at stage (b) to transfer certain amount or total amount of saturated leaching solution for further purifying or refining. Then a base metal, for example, nickel and/or cobalt is extracted out of the solution. EFFECT: reduction of operational costs and increased efficiency of extracting metals from ore. 10 cl, 1 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 346 996 (13) C2 (51) ÌÏÊ C22B 23/00 (2006.01) C22B 3/08 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2007102212/02, 22.06.2005 (72) Àâòîð(û): ÕÀÍÒÅÐ Êîëèí Äæîí (AU) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 22.06.2005 (73) Ïàòåíòîîáëàäàòåëü(è): ÞÐÎÏÈÝÍ ÍÈÊÅËÜ ÏèÝëÑè (GB) R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 29.06.2004 AU 2004903514 (43) Äàòà ïóáëèêàöèè çà âêè: 10.08.2008 (45) Îïóáëèêîâàíî: 20.02.2009 Áþë. ¹ 5 2 3 4 6 9 9 6 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 6319389 B1, 20.11.2001. RU 2149910 C1, 27.05.1996. US 5642863 A, 01.07.1997. EP 1061141 A1, 20.12.2000. US 5178666 A, 12.01.1993. DE 2906808 B1, 28.08.1980. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 29.01.2007 2 3 4 6 9 9 6 R U (87) Ïóáëèêàöè PCT: WO 2006/000020 (05.01.2006) C 2 C 2 (86) Çà âêà PCT: AU 2005/000901 (22.06.2005) Àäðåñ äë ïåðåïèñêè: 191186, Ñàíêò-Ïåòåðáóðã, à/ 230, "ÀÐÑÏÀÒÅÍÒ", ïàò.ïîâ. Ñ.Â.Íîâîñåëîâîé (54) ...

Method for recovery ruthenium and cobalt from scrap

본 발명은 폐초경합금에 포함된 고가의 금속인 루테늄과 코발트를 효율적으로 회수할 수 있는 방법에 관한 것이다. 본 발명에 따른 방법은, 루테늄과 코발트를 포함하는 염산 침출액으로부터, 유기용매 추출법을 사용하여 루테늄과 코발트를 회수하는 방법으로, (a) 트리옥틸메틸암모늄 클로라이드(Trioctylmethylammonium chloride) 및 트리-엔-옥틸아민(tri-n-octylamine) 중 1종 이상을 포함하는 추출제를 사용하고, 상기 염산 침출액의 HCl 농도를 1M ~ 5M 또는 9M 이상으로 하여, 상기 염산 침출액으로부터 루테늄 또는 코발트를 선택적으로 추출하는 단계와, (b) 상기 선택적으로 추출된 루테늄 또는 코발트를 염산 용액을 사용하여 탈거하는 단계를 포함한다. The present invention relates to a method for efficiently recovering ruthenium and cobalt, which are expensive metals contained in spent cemented carbide. The method according to the present invention is a method of recovering ruthenium and cobalt from a hydrochloric acid leachate containing ruthenium and cobalt by using an organic solvent extraction method, (a) trioctylmethylammonium chloride and tri-en-octyl Selectively extracting ruthenium or cobalt from the hydrochloric acid leachate using an extractant containing at least one of amines (tri-n-octylamine) and having an HCl concentration of 1M to 5M or 9M or more of the hydrochloric acid leachate and (b) stripping the selectively extracted ruthenium or cobalt using a hydrochloric acid solution.

Treating method of cobalt ore

PURPOSE: A cobalt concentrate processing method is provided to effectively recover cobalt via a melting mat grinding process and a melting mat leaching process after reduce-melting cobalt concentrate. CONSTITUTION: A cobalt concentrate processing method includes the following steps of: manufacturing slag and an alloy phase by reduce-melting cobalt concentrate; manufacturing a mat by adding sulfur to the alloy phase and melting the same; obtaining ground materials of the mat by grinding the mat; leaching the cobalt and copper from the ground materials; and manufacturing a mineral ball by melting the slag and spraying high-pressured air. [Reference numerals] (AA) Slag; (S100) Cobalt concentrate; (S200) Reduction-melting; (S300) Atomizing; (S400) Mat manufacture; (S500) Mat grinding; (S600) Metal leaching; (S700) Metal returning