RECOVERY OF COPPER FROM COPPER-IRON SULPHIDE ORES

... 1324939 Copper recovery AMERICAN METAL CLIMAX Inc 21 Dec 1971 [25 Jan 1971] 59491/71 Heading C7D Cu-Fe sulphide ores are concentrated to at least 15%Cu, dead roasted to reduce the S content to no more than 1% and then treated by the segregation process (i.e. solid state reduction with carbon as a reductant in the presence of an alkali metal halide) to form reduced copper particles in aggregated form, which may readily be recovered, substantially without reduction of any iron oxides. The S in the gaseous effluent of the dead roasting step may be recovered as elemental S, SO 2 or H 2 SO 4 , and the final recovery may be by flotation.

Improvements in or relating to the recovery or separation of metals

The production of one salt from a mixture of oxides such as that obtained by roasting a sulphide ore is effected by submitting the mixture to the action of a gaseous acid radical under such temperature and with such pressure of the acid radical as will effect the preferential reaction desired. The invention is described in connection with the treatment of a mixture of copper and iron oxides obtained by roasting copper pyrites. This mixture is heated with sulphur trioxide under the necessary conditions at a temperature of about 620-700 DEG C., when copper sulphate alone forms. The invention is applicable to the formation of other salts such as chlorides, and to the treatment of various mixtures of oxides. The separation of copper and nickel and the extraction of aluminium salts from bauxite or other materials are mentioned. In a similar manner a mixture of salts of the same acid radical may be treated in order to effect the decomposition of one but not of the other.

COPPER PROCESSING METHOD

COPPER PROCESSING METHOD

COPPER PROCESSING METHOD

RECOVERY OF COPPER FROM SULPHIDIC MATERIAL

ROASTING OF COPPER SULFIDE CONCENTRATES COMBINED WITH SOLID STATE SEGREGATION REDUCTION TO RECOVER COPPER

Method for microwave induced oxidation of sulphidic ore material in fluidized bed without sulphur dioxide emissions

PROCESS FOR WORKING UP COPPER CEMENTATE SLUDGES

IRON-COPPER SEPARATION BY REDUCTION LEACHING

METHOD FOR PROCESSING COPPER SMELTING MATERIALS AND THE LIKE CONTAINING HIGH PERCENTAGES OF ARSENIC AND/OR ANTIMONY

ABSTRACT The invention relates to a method for preparing a sulphidic concentrate which is intended for further processing to copper and/or precious metals and which contains high percentages of arsenic and/or antimony, and possibly also bismuth in quantities likely to disturb subsequent processing stages, by partially roasting the concentrate in a fluidized bed, so as to eliminate substantially all the arsenic present and a major part of the antimony and/or bismuth. According to the invention, the concentrate and gas are supplied to a fluidized-bed reactor, and are there heated to a minimum temperature above the splitting or decompo-sition temperatures of the complex minerals containing arsenic and/or antimony and bismuth present in the concentrate. The oxygen potential in the reactor is regulated, so as to prevent the formation of non-volatile compounds of said impurities. The residence time of the concentrate in the reactor is controlled in a manner to ensure a given minimum elimination of the impurities. The gas and solids are withdrawn from the reactor and passed to a separating means, in which substantially impurity-free solids can be separated from the gas. The aforesaid minimum temperature and said regulated oxygen potential are main-tained while the solids are in contact with said gas, and at least a part of theseparated solids is returned to the reactor, for controlling the residence time,and an end product is removed from the fluidized bed and/or the separating means. The method is suitably carried out in one stage in a fluidized-bed reactor having a circulatory fluidized bed, although in certain cases the method can be carried out in two stages, in mutually separate reactors.

METHOD AND APPARATUS FOR TREATING COPPER ORE CONCENTRATES

ROAST-LEACH COPPER RECOVERY

TREATMENT OF COMPLEX SULFIDE CONCENTRATE

PROCEEDED OF TREATMENT OF CONCENTRATE SULPHIDES OF COPPER AND RECOVERY OF COPPER

Method for processing copper smelting materials and the like containing high percentages of arsenic and/or antimony

The invention relates to a method for preparing a sulphidic concentrate which is intended for further processing to copper and/or precious metals and which contains high percentages of arsenic and/or antimony, and possibly also bismuth in quantities likely to disturb subsequent processing stages, by partially roasting the concentrate in a fluidized bed, so as to eliminate substantially all the arsenic present and a major part of the antimony and/or bismuth. According to the invention, the concentrate and gas are supplied to a fluidized-bed reactor, and are there heated to a minimum temperature above the splitting or decomposition temperatures of the complex minerals containing arsenic and/or antimony and bismuth present in the concentrate. The oxygen potential in the reactor is regulated, so as to prevent the formation of non-volatile compounds of said impurities. The residence time of the concentrate in the reactor is controlled in a manner to ensure a given minimum elimination of the ...

A METHOD FOR PROCESSING COPPER SMELTING MATERIALS AND THE LIKE CONTAINING HIGH PERCENTAGES OF ARSENIC AND/OR ANTIMONY

PROCEDURE FOR THE TREATMENT OF COPPER CONCENTRATE OR AEHNLICHEM WITH HIGH CONTENT OF ARSENIC AND/OR ANTIMONY.

Method for microwave induced oxidation of sulphidic ores and ore concentrates without the production of sulphur dioxide gas

RECOVERING METAL VALUES FROM REVERBATORY SLAG

METALLURGICAL PROCESS III

A copper flash smelting process in which part of a sulfidic copper feed is roasted in the presence of a calcareous SO2 scavenger to produce a calcine containing calcium sulfate and an oxidic copper product, the calcine is mixed with additional feed and the mixture is flash smelted to provide a metallic product and a calcareous slag.

POLLUTION-FREE PROCESS FOR TREATING COPPER SULFIDE FLOTATION CONCENTRATES AND RECOVERING COPPER

DEAD ROAST-OXIDE FLASH REDUCTION PROCESS FOR COPPER CONCENTRATES

METHOD FOR PARTIAL ROASTING OF COPPER AND/OR GOLD BEARING CONCENTRATES

The above mentioned invention describes a process for removing arsenic and/or antimony sulfides from copper, nickel and/or gold containing ore particles. Ore particles are fed into a reactor, wherein a fluidizing gas is injected into the reactor to form a fluidized bed containing at least a portion of the ore particles. The ore particles are heated in the presence of inert particles to a temperature between 500 and 850 °C and are withdrawn from the reactor. At least 60 wt-% of the inert particles form a first zone of the fluidized bed and at least 60 wt-% of the ore particles form a second zone above the first zone.

METHOD OF PARTIAL ROASTING CONTAINING COPPER AND/OR GOLD CONCENTRATES

Изобретение касается способа удаления сульфидов мышьяка и/или сурьмы из частиц руды, содержащей медь, никель и/или золото. Частицы руды подают в реактор, в который вводят ожижающий газ для формирования псевдоожиженного слоя, содержащего по меньшей мере часть частиц руды. Частицы руды нагревают в присутствии инертных частиц до температуры от 500 до 850°C и выводят из реактора. По меньшей мере 60 мас.% инертных частиц формируют первую зону псевдоожиженного слоя, и по меньшей мере 60 мас.% частиц руды формируют вторую зону, расположенную над первой зоной.

Proceeded for the ore processing sulphuretted and oxidized, in order to extract from it copper, lead and zinc, by the joined together operations of netting, fusion, volatilization and leaching, to which the intermediate and waste preparatory products are subjected

Treatment of copper-lead matte

A method for processing copper smelting materials and the like containing high percentages of arsenic and/or antimony

The invention relates to a method for preparing a sulphidic concentrate which is intended for further processing to copper and/or precious metals and which contains high percentages of arsenic and/or antimony, and possibly also bismuth in quantities likely to disturb subsequent processing stages, by partially roasting the concentrate in a fluidized bed, so as to eliminate substantially all the arsenic present and a major part ot the antimony and/or bismuth. According to the invention, the concentrate and gas are supplied to a fluidized-bed reactor, and are there heated to a minimum temperature above the splitting or decomposition temperatures of the complex minerals containing arsenic and/or antimony and bismuth present in the concentrate. The oxygen potential in the reactor is regulated, so as to prevent the formation of non-volatile compounds of said impurities. The residence time of the concentrate in the reactor is controlled in a manner to ensure a given minimum elimination of the ...

Extraction of metals from ores and concentrates - by treating roasted ore after a redn. stage using a ligand soln.

The method of winning metals, esp. Cu, from sulphide ores comprises (a) roasting the ore under oxidising conditions at 400-1400 degrees C to remove elemental S; (b) treating the S-free roasted material in a furance at 400-1400 degrees C to reduce the oxidised material or change the structure of the roasted product; (c) leaching the product in a first soln. contg. a ligant to extract the main fraction of metal; (d) sepg. the solids by filtering; and (e) leaching in a second soln. contg. a ligand. Pref the ore is roasted under oxidising conditions at 650-1000 degrees C and then treated under reducing conditions at 750-950 degrees C using as reducing gas a mixt. of CO/CO2 or H2/H2O. The CO/CO2 ratio is such that Zn- and Cu cpds. are formed, the Zn cpds. being leached without extracting the Cu compd. The leaching soln contains Cu (II) sulphate, water and a ligand such as acetone nitrile, acrylonitrile or allyl alcohol. The sulphuric gases formed are utilized for producing sulphuric acid and ...

ZUR GEWINNUNG VON KUPFER AUS KUPFERSULFIDEN BESTIMMTE PELLETS UND VERFAHREN ZUR KUPFERGEWINNUNG AUS KUPFERSULFIDEN

Improvements in or relating to the recovery of copper and other metals from copper bearing ores

... 321,685. Duffield, F. L. Aug. 15, 1928. Drawings to Specification. retort furnaces; charging.-The apparatus described in connection with the reduction of iron ores in Specification 304,174 is now described as applied to the reduction of copper-bearing ores.

Improvements in the processing of crude copper mattes

Iron-containing nickel-copper or cobalt-copper mattes are worked up by a process comprising annealing a crude matte of said kind, the sulphur content of which is at the most sufficient to combine with the copper and iron contained therein but at least sufficient to combine with the copper contained therein comminuting the product and subjecting it to a mechanical separation. The annealing causes nickel-iron or cobalt-iron particles to separate from copper sulphide and iron sulphide particles. The latter can be separated in normal way. The cobalt-iron or nickel-iron separated out can be treated by the carbonyl process with the recovery of most of the nickel or cobalt and the iron residue may be added to further amounts of the crude matte if necessary to reduce the effective sulphur content.

Treating materials containing copper and sulphur

Sulphidic copper-containing ores and concentrates are roasted by a fluidized-solids technique at 550-750 DEG C so that the copper is obtained in water-soluble (sulphate) and acid-soluble (oxides) form, and iron present is insoluble ferric oxide. The fluidizing oxygen-containing gas, which may be air enriched by oxygen or diluted with nitrogen as may be necessary, is employed, on the oxygen basis, not to exceed 400 per cent over the stoichiometric amount, the excess being preferably of the order of 50 per cent. Multiple fluidized beds may be employed, some or all of the fluidizing gas supplied to the lowest passing successively from bed to bed to the highest; alternatively, each bed may be independently fluidized by gas which is separately removed. A high temperature roast with a small excess of oxygen may be followed by a lower temperature roast with a larger excess. The temperature of the bed may be controlled by spraying thereon a liquid, especially the residual solution remaining after ...

PROCEDURE FOR THE PRODUCTION OF VALUABLE METALS FROM CONTAMINATED ONE, CUPREOUS MATERIALS.

Method for microwave induced oxidation of sulphidic ore material in fluidized bed without sulphur dioxide emissions

RECOVERY OF COPPER AND ASSOCIATED VALUABLE METALS

IRON-COPPER SEPARATION BY REDUCTION LEACHING

T I T L E IRON - COPPER SEPARATION BY REDUCTION LEACHING I N V E N T O R S Ernest Peters Ralph Hackl Iron-copper separation from sulfide minerals, concentrates,tailings or partial calcines containing these metals, has been achieved by leaching in acid sulphate solutions under reducing conditions to convert all of the unoxidized sulfur to chalcocite (Cu2S) solids and to bring all of the iron into solution. It has been found that this reduction leach will proceed if there is present at least two moles of copper for each mole of sulfide and elemental sulfur, and a reducing agent able to complete all reduction reactions that yield chalcocite. Metallic copper powder has been found an adequate reducing agent and is able to supply any Cu needed to form Cu2S. Iron powder or hydrogen gas under pressure are also operative reducing agents. This reduction leach is operative also on calcines from which sulfur has been volatilized, in which case a metallic copper concentrate is formed. Various flowsheets ...

RECOVERY OF COPPER FROM COPPER-IRON SULFIDE ORE

IRON CHLORIDE ACTIVATED OXIDATION OF SULPHIDE ORES

RECOVERY OF ZINC FROM ZINC BEARING SULPHIDIC ORES AND CONCENTRATES BY CONTROLLED OXIDATION ROASTING

ROGERS, BERESKIN \A PARR TITLE: RECOVERY OF ZINC FROM ZINC BEARING SULPHIDIC ORES AND CONCENTRATES BY CONTROLLED OXIDATION ROASTING INVENTORS: MURRY C. ROBINSON DONALD W. KIRK DR. BRUCE JUE A process is described for the controlled oxidation roasting of zinc bearing sulphidic ores and concentrates by adjusting the furnace temperature and residence time together with the oxygen availability to the sulphide retention requirements in the calcine. The obtained calcine is subsequently subjected to various physical and chemical process steps to separate the unreacted sulphides which are then dead roasted and treated for zinc recovery, according to one embodiment of the process. In another embodiment the separated, unreacted sulphides are returned to the controlled oxidation roasting step. The chemical separation process steps include sulphur dioxide leaching. In one embodiment zinc is preferentially dissolved as sulphite and the solution obtained is further treated for zinc recovery. In other ...

METHOD FOR PARTIAL ROASTING OF COPPER AND/OR GOLD BEARING CONCENTRATES

Verfahren zur partiellen Röstung von kupfer- und/ oder goldhaltigen Konzentraten

Verfahren zur Entfernung von Arsen- und/oder Antimonsulfiden aus kupfer-, nickel- und/oder goldhaltigen Erzpartikeln. Die Erzpartikel werden in einen Reaktor eingebracht, wobei ein Fluidisierungsgas in den Reaktor eingeblasen wird, um ein Wirbelbett auszubilden welches wenigstens einen Teil der Erzpartikel enthält. Die Erzpartikel werden in Gegenwart von Inertpartikeln auf eine Temperatur zwischen 500 und 850 °C erhitzt und aus dem Reaktor abgezogen. Wenigstens 60 Gew.-% der Inertpartikel formen eine erste Zone in dem Wirbelbett und wenigstens 60 Gew.-% der Erzpartikel formen eine zweite Zone oberhalb der ersten Zone.

Process for treating sulfide concentrates containing chalcopyrite and pyrite

A process for thermal activation of chalcopyrite-pyrite ore concentrates for activation of iron values in both chalcopyrite and pyrite constituents whereby said iron values can be selectively removed in a subsequent acid leach. Controlled oxidizing conditions are maintained in an oxidizing heating zone for removal of up to about 90% of total sulfur to be removed for conversion of pyrite and chalcopyrite to their acid-leachable forms, measured by a preferable oxidation of 10 to 15% of iron in the concentrate to ferromagnetic oxides, whereby remaining total sulfur to be removed is removed in a reducing zone with the assistance of a low H2S/(H2+H2S) ratio by scavenging of H2S by said oxides.

Improvements in or relating to the treatment of ores containing copper silicate

... 185,242. Sullman, H. L., Taplin, T. J., Perkins, W. G., and Picard, H. F. K.. June 9, 1921. Dry process of extracting copper.-Relates to the treatment of ores, containing oxidized copper compounds such as silicates, carbonates, and chlorides, for example chrysocolla, malachite, azurite, and atacamite. The crushed ore is heated in a reducing gas, such as hydrogen, producer-gas, coal-gas, &c., for such a short time-15 minutes to one hour, and at such a low temperature-150-400‹ C., that the metal is produced without melting or alloying and without fritting the gangue. Examples are given of the treatment of mixed malaohite-chrysocolla. ores and of atacamite. In the apparatus shown the crushed ore is fed in from an ore-bin A to a dryer B internally fired by combustion of the reducing gases from an externally heated rotary reducing furnace C. The ore is transferred from the furnace to an ammonia solution apparatus by a conveyer D. Specifications 13851/94, 3965/10, and 10143/11 are referred to ...

Treatment of nickeliferous materials

... 311,909. Smith, S. C. April 18, 1928. Treating ores to remove undesired constituents. -Ores. concentrates, residues &c. containing nickel and copper, for instance leached or unleached roasted ferruginous or bessemerized matte, are reduced to obtain a metal sponge, and the latter is moistened with acid, which may be heated, and exposed to the air until a rise of temperature occurs, whereby the nickel and copper, and iron and cobalt if present, are converted into compounds which may be removed by leaching with acid. When precious metals such as gold, silver, and metals of the platinum group are present, as in the treatment of a Norito platinum concentrate, they remain in the residue, and by repeating the steps of roasting, re- -duction to sponge, and leading, a rich concentrate thereof may be obtained. Lead if present remains with the precious metals.

THERMO-ACTIVATION PROCESS

PROCESS FOR WORKING UP COPPER CEMENTATE SLUDGES

METHOD FOR RECOVERING THE VALUABLE METAL CONTENT OF CONTAMINATED COPPER RAW MATERIAL

RECOVERY OF COPPER FROM COPPER-IRON SULFIDE ORE

METALLURGICAL PROCESS III

An Improved Method of and Means for Producing and Refining Metals.

... 22,834. Frumkin, S. B. Oct. 9. Converters. - An annular converter is mounted on trunnions a, and the blast-supply pipe t is connected with a nozzle mounted on trunnions f; a crank f<1> is secured to one of the trunnions: f so that the nozzle can be directed downwards. An opening e, which serves for charging and discharging, delivers the escaping gases into a regenerator M. The carbon is converted directly into carbon dioxide. In superheating metal, the converter is inverted at the end of the 'blow,' so that the metal rests on that part of the lining previously exposed to the action of the blast.

Treatment of ores or the like containing platinum

... 306,566. Smith, S. C. Oct. 21, 1927. Treating ores to remove undesired constituents. -Platinum concentrates are obtained from ores carrying also nickel, copper, and iron by first producing a sulphide matte; desulphurizing by roasting, with or without first Bessemerizing; reducing the roasted matte to produce a metal sponge, with or without a previous acid leach to remove the bulk of the copper and it may be some nickel and cobalt; and extraction of the sponge with dilute acid to dissolve nickel and iron and to leave the platinum group metals generally admixed with copper. The steps of roasting, leaching, reduction, and leaching may be repeated. Reduction may be effected by carbon in a muffle furnace, or by reducing gases, hydrogen, hydrocarbons, carbon monoxide, and alcohol vapour being instances in the Provisional Specification. In an example, coal gas is specified. Specification 296,744 is referred to.

Improvements in the metallurgical treatment of copper silicate ores or products

... 262,552. Dewar, W. Oct. 6, 1925. Roasting.-The copper present in ores or other products containing copper in the form of silicate is converted to oxide so that it is soluble in an ammoniacal solution or solvent in the absence of an oxidizing atmosphere by subjecting the ores &c. to a preliminary heating at a regulated temperature in an atmosphere which does not reduce the copper to the metallic state. For instance, the ore, which may contain copper oxide, carbonate, and silicate, or the silicate alone, mav be heated at 190-230‹ C. in the presence of producer gas for ¢-1 hour, or it may be heated in air or other neutral atmosphere at 500-550‹ C. for a like period, but the temperature employed and the duration of the heat treatment are dependant on the size of the particles, the percentage of copper in the ore, and its chemical nature. On leaching the treated ore with an ammoniacal solution or solvent, the copper present passes into solution without employing a current of air or oxygen. Specification ...

THE RECOVERY OF COPPER FROM COPPER CONCENTRATES

THERMO-ACTIVATION PROCESS

ABSTRACT OF THE DISCLOSURE A process for thermal activation of chalcopyrite-pyrite ore concentrates for activation of iron values in both chalcopy-rite and pyrite constituents whereby said iron values can be selectively removed in a subsequent acid leach. Controlled oxidizing conditions are maintained in an oxidizing heating zone for removal of up to about 90% of total sulfur to be removed for conversion of pyrite and chalcopyrite to their acid-leachable forms, measured by a preferable oxidation of 10 to 15% of iron in the concentrate to ferromagnetic oxides, Thereby remaining total sulfur to be removed is removed in a reducing zone with the assistance of a low H2S/(H2+H2S) ratio by scavenging of H2S by said oxides.

DEAD ROAST-OXIDE FLASH REDUCTION PROCESS FOR COPPER CONCENTRATES

ABSTRACT OF THE DISCLOSURE The present invention contemplates providing a finely divided copper calcine and thereafter subjecting the calcine to reduction flash smelting. Indeed, significant processing advantages are achieved by dead roasting a finely divided copper concentrate, especially in a fluid bed reduction zone, and thereafter subjecting the resulting calcine to reduction flash smelting. Gases from the dead roaster and the flash smelter are combined for SO2 recovery in an acid plant.

TREATMENT OF COMPLEX SULFIDE CONCENTRATE

The present invention provides a process of treating complex sulfide concentrate, comprising the steps of(a) roasting wet or slurried complex sulfide concentrate in a furnace at a temperature of at least 720°Cto obtain a cal- cine; and (b) smelting the calcine obtained in step (b) under inert or oxygen free atmosphere in a smelting furnace (20) to obtain a matte, and optionally (c) granulating the matte obtained in step (b) to obtain a granulated matte.

METHOD AND APPARATUS FOR TREATING COPPER ORE CONCENTRATES

PROCESS Of ACTIVATION OF the IRON AND COPPER ORES

PROCEDE D'ACTIVATION DES MINERAIS DE CUIVRE ET DE FER

L'invention concerne un procédé pour l'activation thermique des concentrés de minerais de chalcopyrite-pyrite afin que le fer puisse ensuite être extrait par un acide. Selon ce procédé, on maintient des conditions oxydantes dans une zone d'oxydation 16 d'un four de grillage 14 pour l'extraction d'une quantité jusqu'à environ 90 % du soufre total pour la conversion de la pyrite et de la chalcopyrite à des formes permettant la lixiviation, avec 10 à 15 % du fer des concentrés en oxydes ferromagnétiques, afin que le soufre total puisse être extrait dans une zone de réduction 18 avec un rapport faible H2 S/(H2 + H2 S) par balayage du H2 S par ces oxydes.

Process for thermal-activation of chalcopyrite-pyrite concentrates

A process for thermal activation of chalcopyrite-pyrite ore concentrates for activation of iron values in both chalcopyrite and pyrite constituents whereby said iron values can be selectively removed in a subsequent acid leach. Controlled oxidizing conditions are maintained in an oxidizing heating zone for removal of up to about 90% of total sulfur to be removed for conversion of pyrite and chalcopyrite to their acid-leachable forms, measured by a preferable oxidation of 10 to 15% of iron in the concentrate to ferromagnetic oxides, whereby remaining total sulfur to be removed is removed in a reducing zone with the assistance of a low H2 S/(H2 +H2 S) ratio by scavenging of H2 S by said oxides.

METHOD FOR RECOVERING VALUABLE METAL

The purpose is to provide a method for recovering a valuable metal at low cost. The present invention is a method for recovering a valuable metal, the method comprising a step of preparing a burden material containing at least a valuable metal to obtain a raw material, a step of subjecting the raw material to an oxidation treatment and a reductive melting treatment to produce a reduced product containing an alloy and a slag, and a step of separating the slag from the reduced product to collect the alloy, in which the copper grade, which is a ratio of the mass of copper (Cu) to the total mass of nickel (Ni), cobalt (Co) and copper (Cu) contained in the alloy (i.e., a Cu/(Ni+Co+Cu) ratio), is adjusted to 0.250 or more.

Treatment of sulphide ores

... Complex sulphide ore containing iron is subjected to an intensive oxidation, thereby removing the bulk of the sulphur and forming a molten product of the resulting oxidized ore in which the major part of the iron is present as magnetite. The ore contains sufficient natural fuel to insure fusion of the product without the fluxing assistance of silica. Ores deficient in fuel value are subjected to a preliminary concentration, or blended with ore of higher sulphide content. Extraneous fuel may also be used. The molten oxidized product is then subjected to a selective reduction by a gas or atomized agent blown through the melt, or by a solid reducing agent mixed with the melt by means of a gas blown therethrough. One form of apparatus for carrying out the oxidation and reduction is a tilting furnace or barrel converter having the bottom section in two parts 12, 13, one substantially flat and the other arched. The crushed ore, if necessary after separation of dust, is fed ...

Method for working up auriferous and cupriferous arsenical pyrites

In working up auriferous and cupriferous arsenical pyrites or such pyrites in admixture with sulphur pyrites, a part of the ore is roasted and smelted to matte which is blasted in a converter, whilst the remainder of the ore, after roasting, is charged direct into the converter to be blasted together with the matte. By this procedure, loss of gold in the converter slag is minimized. Roasting of the ore to be passed direct to the converter is so controlled that all arsenic is roasted out whilst leaving the bulk of the sulphur, and so that any iron present remains in the divalent state; such ore should, when possible, have a higher gold and a lower copper content than that part of the ore which is smelted to matte.ALSO:In working up auriferous and cupriferous arsenical pyrites or such pyrites in admixture with sulphur pyrites, a part of the ore is roasted and smelted to matte which is blasted in a converter, whilst the remainder of the ore, after roasting, is charged direct into the converter ...

PROCESS FOR TREATING SULPHIDE CONCENTRATES CONTAINING CHALCOPYRITE AND PYRITE

Selective reduction of cupriferous calcine

PREHEATING COPPER CONCENTRATES

ROAST-REDUCTIVE LEACH PROCESS FOR COPPER RECOVERY

Partial roasting process for copper and/or gold concentrate

Process of separation of metals in the ores

Flash smelting process

A copper flash smelting process in which part of a sulfidic copper feed is roasted in the presence of a calcareous SO2 scavenger to produce a calcine containing calcium sulfate and an oxidic copper product, the calcine is mixed with additional feed and the mixture is flash smelted to provide a metallic product and a calcareous slag.

ACTIVATING CHALCOPYRITE-PYRITE CONCENTRATES

POLLUTION-FREE PROCESS FOR TREATING COPPER SULFIDE FLOTATION CONCENTRATES AND RECOVERING COPPER

METHOD FOR RECOVERING THE VALUABLE METAL CONTENT OF CONTAMINATED COPPER RAW MATERIAL

ABSTRACT OF THE DISCLOSURE The invention relates to a method for recovering the valuable metal content of a mix of contaminated copper raw materials, of which materials at least one is sulphide bearing, and which contain one or more impurities forming the group arsenic, antimony, bismuth, mercury, tin, chlorine and other halogens. The invention is characterized by adjusting the halogen content of the mix so that it is substantially at least stoichiometric in relation to remaining impurities in the group, whereafter the mix is charged to a furnace in which melting can take place and in which the mix is heated to at least 500 C, but beneath the melting points of respective ingredients of the mix, while maintaining good contact with hot gas therewith to expel substantially all of the aforementioned impurities present. The mix is then heated to completely smelt the ingredients present, to form a slag and a copper matte, which latter contains the valuable metal content, whereafter this valuable metal content is recovered with the air of a suitable, conventional method. At least one of the copper raw materials present in the mix comprises suitably a halogen-bearing valuable-metal containing product, for example chlorine-bearing ash or slag.

Method for the extraction of copper and lead in the ores strongly basic

METHOD FOR SEPARATING AND RECOVERING NICKEL AND COPPER FROM COMPLEX MATERIALS

SELECTIVE REDUCTION OF CUPRIFEROUS CALCINE

A process for selectively reducing calcine from a copper/nickel containing sulfidic material includes subjecting the calcine to a mildly reducing atmosphere at relative high temperatures. CuO is selectively converted to Cu2O which can easily be separated by leaching from other metals which may be present in the material.

ROAST-LEACH COPPER RECOVERY

A copper-containing sulfidic material is deadroasted at a temperature of at least 750.degree.C and the resulting calcine is leached in a sulfuric acid solution to dissolve most of the copper in preference to any iron, nickel and cobalt in the material.

RECOVERY OF METAL VALUES FROM REVERBERATORY SLAG

SELECTIVE REDUCTION OF CUPRIFEROUS CALCINE

A process for selectively reducing calcine from a copper/nickel containing sulfidic material includes subjecting the calcine to a mildly reducing atmosphere at relative high temperatures. CuO is selectively converted to Cu2O which can easily be separated by leaching from other metals which may be present in the material.

Process improved to treat ores containing of the oxidized copper compounds

Improvements to processes processing sulfide ores

A METHOD FOR SEPARATING AND RECOVERING NICKEL AND COPPER FROM COMPLEX MATERIALS

A method of recovering copper and nickel from sulphidic minerals containing copper, nickel and iron comprises the steps of roasting the mineral, preferably to provide magnetite; sulphating, for example with sulphuric acid, sulphur trioxide, metal sulphate and/or sulphur dioxide together with oxygen, and a subsequent leaching of the sulphated material and recovery of copper from the leaching solution, for example by electrolysis. All or part of the leaching solution with its nickel content is recycled to the roasting stage, and the nickel content is removed in the form of nickel oxide together with the leaching residue, from which nickel can be recovered.

Recovery of zinc from zinc-bearing sulphidic ores and concentrates by controlled oxidation roasting

In a process for recovering zinc from zinc sulphide concentrates, the concentrate is roasted in an oxygen deficient atmosphere so as to retard ferrite formation in the temperature range of 600°C to 1000°C. In one embodiment the calcine produced is subjected to physical separation processes, the unreacted zinc sulphides are then dead roasted separately, and the separated iron containing fraction is treated for further zinc recovery. In another embodiment the unreacted sulphides in the calcine are separated by physical and or chemical means and returned to the partial roasting step; and the separated oxidic fraction either as solids or in a solution, are treated for zinc recovery, and iron disposal. Undesirable sulphides are bled off from the processing circuit as required.

VERFAHREN ZUR THERMISCHEN AKTIVIERUNG VON CHALKOPYRIT-PYRIT-ERZKONTENTRATEN

Improvements in or relating to the treatment of oxidised ores or other oxidised compounds of copper

... 216,462. Edwards, G. W., and Durant, H. T. Dec. 27, 1922. No Patent granted (Sealing fee not paid). Roasting.-Ores or other materials containing copper in the oxidized condition, including oxides, hydroxides, carbonates, silicates, basic or oxychlorides, &c., such as malachite, azurite, chrysocolla, and atacamite, are mixed with a solid carbonaceous material and heated at a temperature of 300‹ C. to 550‹ C. in an oxidizing atmosphere, after which the product is amenable to an ammoniacal leaching process, such as that described in Specification 215,802, [Class 1 (ii), Inorganic compounds, other than &c.]. The ore &c. is crushed to a fine state of division, for example to a linear mesh of 30, and is mixed either before or during crushing with coal, coke, charcoal, sawdust, straw, hay, or manure, &c., and is charged into a reverberatory furnace, where it is heated with an excess of oxygen for about an hour, during which time it is agitated by rabbling &c. After discharge from the furnace the ...

Processes for the treatment of cupriferous pyrites

The residue from the burning of cupriferous pyrites is divided, magnetically or otherwise, into portions some of which can be leached directly with water or acid. Part or all of the portions which cannot be so leached are subjected to the usual chloridizing roast or are added to fresh pyrites and re-burnt therewith, the resulting residue being again divided and treated as above.

Copper processing method

A method of processing a copper-containing source material is provided whereby an aqueous acidic leach solution of the copper-containing source material is formed and then contacted with a pH increasing agent to thereby cause the precipitation of a copper-containing intermediate. The copper- containing intermediate can then be collected and exposed to a high temperature treatment, such as would be encountered in smelter or converter operations.

PREHEATING COPPER CONCENTRATES

ROAST-REDUCTIVE LEACH PROCESS FOR COPPER RECOVERY

ABSTRACT OF THE DISCLOSURE: A sulfide containing copper and one or more of iron, nickel and cobalt, is dead-roasted at a temperature of 750°C or above, then subjected to a pressure leach under reducing conditions to produce elemental copper and an aqueous solution of the other metals.

RECOVERY OF METAL VALUES FROM REVERBERATORY SLAG

A process for the recovery of metals from copper reverberatory slag containing iron in the form of silicates comprising roasting said slag in an oxidizing atmosphere at a temperature of at least about 550.degree.C in the presence of sulfur trioxide for a time sufficient to effect decomposition of substantially all of said iron present in the slag to iron oxide and the other metals therein to water-soluble salts and metal oxides, and separating the water-soluble metal salts and metal oxides from the iron oxide and silica residue.

IRON CHLORIDE ACTIVATED OXIDATION OF SULPHIDE ORES

METHOD FOR MICROWAVE INDUCED OXIDATION OF SULPHIDIC ORE MATERIAL IN FLUIDIZED BED WITHOUT SULPHUR DIOXIDE EMISSIONS

The present invention relates to a method for processing pyrite minerals, using a microwave energized fluidizing reactor, under temperature conditions that provide reaction products that are relatively free of SO2 emissions. The controlled temperature conditions at which the reaction products are hematite and elemental sulphur may be achieved by recirculating and cooling a portion of the outgoing fluidizing gas and by adjusting the microwave energy supplied to the fluidized bed.

The method for displaying the nickel and copper matte

Improvements in the treatment of ores [...]-to-lead-bearing refractory

Sophisticated process of manufacture of alloys

Process for the manufacture of the copper and nickel matte

COPPER PROCESSING METHOD

A method of processing a copper-containing source material is provided whereby an aqueous acidic leach solution of the copper-containing source material is formed and then contacted with a pH increasing agent to thereby cause the precipitation of a copper-containing intermediate. The copper-containing intermediate can then be collected and exposed to a high temperature treatment, such as would be encountered in smelter or converter operations. 1. A method of processing a copper-containing source material including the steps of:(a) providing an aqueous acidic leach solution of the copper-containing source material;(b) introducing a pH increasing agent into the acidic leach solution to cause the precipitation of a copper-containing intermediate; and(c) collecting the copper-containing intermediate and exposing it to a high temperature treatment, optionally transporting the copper-containing intermediate to another location prior to its exposure to the high temperature treatmentto thereby process the copper-containing source material.2. The method of wherein the copper-containing source material is a copper-containing ore claim 1 , copper smelter slag claim 1 , copper-containing tailings claim 1 , copper concentrate or a copper-containing process intermediate or waste product.3. The method of wherein the copper-containing ore is selected from a copper sulphide or copper oxide ore.4. The method of wherein the aqueous acidic leach solution is formed from an acid selected from the group consisting of sulphuric claim 1 , nitric and hydrochloric acids.5. The method of wherein the pH increasing agent is selected from the group consisting of calcium oxide claim 1 , calcium carbonate claim 1 , calcium hydroxide claim 1 , calcium ferrite claim 1 , magnesium oxide claim 1 , magnesium carbonate claim 1 , magnesium hydroxide claim 1 , sodium carbonate claim 1 , sodium hydroxide claim 1 , dolomite and materials containing one or more of these compounds.6. (canceled)7. The method of ...

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 ...

Process for recovering copper and molybdenum from ore concentrates

Method of processing copper-nickel sulphide materials

FIELD: technological processes. SUBSTANCE: method of processing copper-nickel sulphide materials can be used in non-ferrous metallurgy during processing of copper-nickel sulphide materials. Processing of copper-nickel sulphide materials involves oxidative annealing of the material to obtain ash, leaching of the cinder with recycling solution, separation of leaching residue and electro extraction of copper from the leaching solution. Cinder and the dust formed during roasting are leached separately. Dusts are leached in recycled copper raffinate together with separated part of solution of waste ash processing circuit, which is represented by part of solution supplied for leaching after electro-extraction of copper. One separates dust leaching residue. Copper is extracted from solution of leaching of dust by liquid extraction with subsequent separate electro extraction of copper from reverse re-extract. After that part of raffinate is separated for transfer to nickel production. EFFECT: method allows to increase production parameters, in particular, to increase direct extraction of copper into commercial products, to reduce losses of copper and other valuable components, to reduce incomplete production of non-ferrous and precious metals due to reduced speed. 3 cl, 2 dwg, 1 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 706 400 C1 (51) МПК C22B 15/00 (2006.01) C22B 23/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 15/00 (2019.08); C22B 23/00 (2019.08) (21)(22) Заявка: 2019121796, 11.07.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 11.07.2019 (45) Опубликовано: 18.11.2019 Бюл. № 32 2 7 0 6 4 0 0 R U (56) Список документов, цитированных в отчете о поиске: RU 2341573 C1, 20.12.2008. RU 2588904 C1, 10.07.2016. RU 2415956 C1, 10.04.2011. RU 2171856 C1, 10.08.2001. US 4828809 A, 09.05.1989. (54) Способ переработки медно-никелевых ...

Method of processing copper-nickel sulphide materials

FIELD: technological processes.SUBSTANCE: method of processing copper-nickel sulphide materials can be used in non-ferrous metallurgy during processing of copper-nickel sulphide materials. Processing of copper-nickel sulphide materials involves oxidative annealing of the material to obtain ash, leaching of the cinder with recycling solution, separation of leaching residue and electro extraction of copper from the leaching solution. Cinder and the dust formed during roasting are leached separately. Dusts are leached in recycled copper raffinate together with separated part of solution of waste ash processing circuit, which is represented by part of solution supplied for leaching after electro-extraction of copper. One separates dust leaching residue. Copper is extracted from solution of leaching of dust by liquid extraction with subsequent separate electro extraction of copper from reverse re-extract. After that part of raffinate is separated for transfer to nickel production.EFFECT: method allows to increase production parameters, in particular, to increase direct extraction of copper into commercial products, to reduce losses of copper and other valuable components, to reduce incomplete production of non-ferrous and precious metals due to reduced speed.3 cl, 2 dwg, 1 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 706 400 C9 (51) МПК C22B 15/00 (2006.01) C22B 23/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) СКОРРЕКТИРОВАННОЕ ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ Примечание: библиография отражает состояние при переиздании (52) СПК C22B 15/00 (2019.08); C22B 23/00 (2019.08) (21)(22) Заявка: 2019121796, 11.07.2019 11.07.2019 Приоритет(ы): (22) Дата подачи заявки: 11.07.2019 (45) Опубликовано: 18.11.2019 (15) Информация о коррекции: Версия коррекции №1 (W1 C1) (48) Коррекция опубликована: 2 7 0 6 4 0 0 R U Адрес для переписки: 123100, Москва, 1-й Красногвардейский пр-д, 15, ПАО "ГМК "Норильский никель", Производственно-технический департамент (56) ...

FOERFARANDE FOER FRAMSTAELLNING AV KOPPARMETALL.

A method for separating and recovering nickel and copper fromcomplex materials

It is a kind of by low nickel matte calcification baking acidleach high efficiency extraction nickel, copper, cobalt method

本发明涉及一种由低冰镍钙化焙烧‑酸浸高效提取镍、铜、钴的方法，属于绿色冶金工艺技术领域。一种由低冰镍钙化焙烧‑酸浸高效提取镍、铜、钴的方法，具有如下步骤：将氧化钙粉末与低冰镍粉末（小于200目）按质量比为（1～2）：1混合均匀，将混匀后的物料置于坩埚内，敞口，然后在一定的温度500‑1100 o C下于电阻炉内焙烧1‑3 h；待焙烧相应时间后，急速冷却至室温，将焙砂置于烧杯中，加浓度为2 mol/L的稀硫酸100 mL，加热搅拌浸出，1 h后将混合物过滤，即得到富含镍、铜、钴的浸出液，可用作提取镍、铜、钴；滤渣烘干后可作为制取石膏的原料。相比于传统火法工艺，简化工艺流程，减少了有价金属（尤其是钴）的损失，且由于氧化钙的固硫作用，可减小SO 2 排放，有利于保护环境。

Copper refining raw material containing high ratio arsen and(or) antimony and treatment therefor

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

FOERFARANDE FOER SEPARATION OCH UTVINNING AV NICKEL OCH KOPPARUR KOMPLEXMATERIAL

A method for separating and recovering nickel and copper from complex materials

Method for microwave induced oxidation of sulphidic ores and ore concentrates without the production of sulphur dioxide gas

The present invention relates to a method for processing pyrite minerals, using a microwave energized fluidizing reactor, under temperature conditions that provide reaction products that are relatively free of SO2 emissions. The temperature of the reaction in the fluidized bed is controlled to a temperature below 823 °K and the inflow of oxygen to the reaction zone in the bed is adjusted such that the reaction products are predominantly hematite and elemental sulphur.

Electric furnace smelting of copper concentrates

Treatment of complex sulfide concentrate

Processing of crude nickel-copper matte

A method of by low nickel matte calcification baking-acidleach high efficiency extraction nickel, copper, cobalt

本发明涉及一种由低冰镍钙化焙烧‑酸浸高效提取镍、铜、钴的方法，属于绿色冶金工艺技术领域。一种由低冰镍钙化焙烧‑酸浸高效提取镍、铜、钴的方法，具有如下步骤：将氧化钙粉末与低冰镍粉末（小于200目）按质量比为（1～2）：1混合均匀，将混匀后的物料置于坩埚内，敞口，然后在一定的温度500‑1100 o C下于电阻炉内焙烧1‑3 h；待焙烧相应时间后，急速冷却至室温，将焙砂置于烧杯中，加浓度为2 mol/L的稀硫酸100 mL，加热搅拌浸出，1 h后将混合物过滤，即得到富含镍、铜、钴的浸出液，可用作提取镍、铜、钴；滤渣烘干后可作为制取石膏的原料。相比于传统火法工艺，简化工艺流程，减少了有价金属（尤其是钴）的损失，且由于氧化钙的固硫作用，可减小SO 2 排放，有利于保护环境。

Copper processing method

本发明提供一种加工含铜源材料的方法，通过形成含铜源材料的水性的酸浸出溶液，然后使该溶液与pH增大试剂接触，由此引起含铜中间产物沉淀。然后，可收集该含铜中间产物，并使其经受高温处理，诸如在熔炼器或转化器操作中将遇到的处理。

A method for recovering the valuable metal content of contaminated copper raw material

Process of separating ores

Process for working up copper cementate sludges

A process for recovering metallic values from arsenic-containing copper cementate sludges. The cementate is admixed with lime in an amount sufficient to form calcium sulfate by reaction with any water-soluble sulfate present in the cementate, and calcium arsenate from the arsenic present in the cementate. The admixture is roasted in an oxygen-containing atmosphere at a temperature above about 300° C, to oxidize the metallic values to a state in which said values are soluble in aqueous acid. The roasted material is leached with aqueous acid to dissolve said values. The values can be recovered from the solution produced in the leaching step by known procedures. By the process of the invention, polluting by arsenic is prevented.

Method for recovering metal copper by using organic silicon waste contact

本发明涉及金属回收冶炼领域，尤其涉及一种利用有机硅废触体回收金属铜的方法。其包括：对有机硅废触体进行氧化焙烧，去除有机杂质；收集煅烧后的固体产物，与少量碳源混合置于保护气氛中加热进行缺碳还原，缺碳还原后收集排出的高温烟气，对剩余的固体产物再重复若干次缺碳还原至排出后的高温烟气可燃，得到预产物；利用重液分离的方式，分离得到金属铜。本发明制备过程污染小，并无污染性液体和气体的排放，并且无需酸碱物质使用，十分绿色环保；金属铜的得率高，并且所制得的金属铜具有更高的纯度；制备过程中各种物料的利用率均达到极高的程度，基本不存在物料浪费，大部分的物料均能够实现回收利用。

Process for the continuous, sulphating roasting of sulphidic copper ores or concentrates in the fluidized bed process

Recovery of copper and associated valuable metals

The invention relates to a method for recovering the valuable metal content of a mix of contaminated copper raw materials, of which materials at least one is sulphide bearing, and which contain one or more impurities forming the group arsenic, antimony, bismuth, mercury, tin, chlorine and other halogens. The invention is characterized by adjusting the halogen content of the mix so that it is substantially at least stoichiometric in relation to remaining impurities in the group, whereafter the mix is charged to a furnace in which melting can take place and in which the mix is heated to at least 500°C, but beneath the melting points of respective ingredients of the mix, while maintaining good contact with hot gas therewith to expel substantially all of the aforementioned impurities present. The mix is then heated to completely smelt the ingredients present, to form a slag and a copper matte, which latter contains the valuable metal content, whereafter this valuable metal content is recovered with the aid of a suitable, conventional method.At least one of the copper raw materials present in the mix comprises suitably a halogen-bearing valuable-metal containing product, for example chlorine-bearing ash or slag.

Method for recovering valuable metal

The present invention provides a method which is capable of more strictly controlling the oxygen partial pressure required during the melting of a starting material, thereby being capable of recovering a valuable metal more efficiently. A method for recovering valuable metals (Cu, Ni, Co), said method comprising the following steps: a step for preparing, as a starting material, a charge that contains at least phosphorus (P), iron (Fe) and valuable metals; a step for heating and melting the starting material into a melt, and subsequently forming the melt into a molten material that contains an alloy and slag; and a step for recovering the alloy that contains valuable metals by separating the slag from the molten material. With respect to this method for recovering valuable metals, the oxygen partial pressure in the melt is directly measured with use of an oxygen analyzer when the starting material is heated and melted, and the oxygen partial pressure is controlled on the basis of the thus-obtained measurement result.

Methods of separating and recovering copper from materials containing copper

Cuprous sulphate solutions, suitable for thermal or electrochemical disproportionation to yield copper, are obtained by dissolving copper sulphites, such as Chevreul's salt or cuprous ammonium sulphite, in acetonitrile-water or 2 hydroxycyanoethane-water mixtures, preferably in the presence of cupric sulphate. This discovery is capable of a number of applications, one of which is the recovery of copper from chalcopyrite by the following five steps. An oxidizing roast of chalcopyrite such as to produce either cupric sulphate and/or copper oxide, leaching of cupric sulphate from the calcine, precipitation of Chevreul's salt and/or other copper sulphites with a soluble salt of sulphurous acid, including bisulphites, dissolution of the copper sulphite as cuprous sulphate, using cupric sulphate in an acetonitrile-water solution as oxidant; precipitation of pure copper by thermal disproportionation of the cuprous sulphate solution. Acetonitrile and acidic cupric sulphate solution may be recycled. Advantages over conventional processes, such as roast, leach-electrowin, or smelt, convert, electrorefine, include lower cost, lower energy consumption, sulphur removal as ammonium sulphate or gypsum, rather than as sulphur dioxide, and rapid throughput. The net reaction is: ##EQU1##

Verfahren zur behandlung von kupfer-konzentrat oder aehnlichem mit hohem gehalt von arsen und/oder antimon.

一种从冰铜渣中碱性湿法浸出铜的工艺方法

本发明提供一种从冰铜渣中碱性湿法浸出铜的工艺方法，涉及金属湿法冶金技术领域，其包括以下步骤：将冰铜渣粉体置于焙烧炉中进行氧化焙烧，得到铜氧化物，加入碳酸氢铵溶液，并调节PH至11.5‑13.5，得到含铜溶液和浸出渣，向含铜溶液中通入蒸汽至温度70‑90℃，再通入氧气，得到高铜溶液，调节高铜溶液的PH至6.8‑7.2，再加入氢氧化钠溶液，进行沉铜，即得到氢氧化铜沉淀，再进行洗涤并干燥，再置于高温焙烧炉中，加热分解成氧化铜，再通入一氧化碳，继续置于高温焙烧炉中，加热即得铜粉。本发明，利用碳酸氢铵处理冰铜渣，调整溶液pH为碱性，有利于铜的浸出，碱性浸出过程中，有效避免了渣中铁、硅、钙等的浸出，提高了铜的浸出效果，进而提高铜回收率。

用于加工硫化铜和硫化镍材料的方法

由于加工硫化铜‑镍材料的本方法可以在加工硫化铜‑镍材料时用于有色冶金中。硫化铜‑镍材料的加工包括材料的氧化焙烧以获得炉渣，用循环溶液浸析所述炉渣，分离浸析残余物，和从浸析液中电解沉积铜。焙烧过程中产生的炉渣和粉尘分别浸析。所述粉尘与来自炉渣加工循环的部分溶液一起在循环铜萃余物中浸析，所述部分在所述溶液引导至浸析步骤时由铜电解沉积步骤的溶液在分离。分离来自粉尘浸析步骤的残余物。通过液体提取从粉尘浸析步骤的溶液中提取出铜，然后从循环再提取物中进行铜的单独电解沉积。然后，分离部分萃余物送入镍生产过程。该方法可以改进生产性能，特别是增加铜回收为市售产品，减少铜和其他有价值组分的损失，通过减少循环数而降低有色金属和贵金属方面的在制品。

一种铜渣贫化的方法

本发明提供一种铜渣贫化的方法，属于冶金技术领域。该方法在铜冶炼设备与储存池中间增加管式冶炼设备，利用重力使液态铜渣缓慢下流，然后在管式冶炼设备底端分别吹入氧化性气体和还原性气体，设备上端增加燃气烧嘴，对铜渣实现加热，且上端可增加喷粉装置，通过喷吹碳粉的形式，将碳喷吹进流体中，使铜渣中有价金属的还原条件更优。该方法可以实现铜渣的连续性贫化，在造锍炉排渣的过程中，便可完成铜渣贫化所需要的还原反应，后续只需要进行沉降分离操作即可。采用该方法，能够将铜渣中的S含量降低到0.01％，并且收得产物为金属液，可直接使用或返回造铜炉，生产作业连续进行。

处理辉铜矿的焙烧炉的开车方法

本发明公开了一种处理辉铜矿的焙烧炉的开车方法，以焙烧炉炉底渣作为炉底料并预先筛分，严格控制炉底料铺设过程中的风量，使炉床中的物料始终保持轻度沸腾状态，在炉膛蓄热阶段通入了富氧空气并控制炉总风量低，物料保持在轻度沸腾状态，并间断采用中度沸腾状态进行翻炉作业，在沸腾层升温阶段将入炉总风量提高，保持物料在中度沸腾状态，并间断采用完全沸腾状态进行翻炉作业，本发明投料开车先以硫酸化焙烧为主，后逐步转化为氧化焙烧，对投料初始温度比正常焙烧反应温度低70℃左右，缩短了升温时间，降低了升温过程的燃料消耗，本发明提供的开车方法，不仅能实现稳定开车，而且能节约能耗。

Method for processing copper and nickel sulfide materials

The invention relates to the field of non-ferrous metal industry, in particular to methods for processing copper and nickel sulfide materials includes oxidizing torrefaction of a material to obtain cinder, leaching the cinder with a cycling solution, separating the leaching residue, and electro-extraction of copper from the leaching solution. The particulates are leached separately from cinder in a cycling copper raffinate together with the separated portion of solution from a cinder processing line, said portion consisting of a portion of solution provided to the leaching after electro-extraction of copper. Copper is extracted by solvent extraction from the particulates leaching solution, followed by separate electro-extraction of copper from the circulating re-extract. The method enables an improvement of performance characteristics, increases direct extraction of copper into a marketable product, reduced losses of copper and other valuable components, a reduced incomplete processing of non-ferrous and precious metals by reducing process cycles.

一种废旧锂电池回收除铜的方法

本发明公开了一种废旧锂电池回收除铜的方法，包括以下步骤：步骤S1、将废旧锂电池负极片进行破碎粉化得到第一粉料；步骤S2、将第一粉料浸泡过有机溶剂后，干燥得到第二粉料；步骤S3、对第二粉料进行加热氧化，得到第三粉料；步骤S4、第三粉料采用碱液络合，过滤得到透明蓝色溶液；步骤S5、将透明蓝色溶液通过酸调整pH值进行沉淀，通过后处理得到高纯度的氧化铜或氢氧化铜。本发明采用简单的加热和碱性物质溶解氧化铜，并生成四羟基合铜配离子的方法，再经过加热或调整pH值，生成氧化铜颗粒或氢氧化铜胶体，简单易行，操作方便。

銅硫化物からの銅の回収のために使用されるペレット

一种回收铜渣中铁和铜的方法

本发明公开了一种回收铜渣中铁和铜的方法，特点是包括以下步骤：1)在铜渣中添加添加剂混匀后制备出团块干燥得到干团块；2)将干团块在900‑1100℃的氧化性气氛中焙烧10‑30min；3)将干团块在渗碳气体中进行渗碳，渗碳温度在550‑850℃、渗碳时间60‑300min，渗碳结束后在惰性气体或者渗碳气体中冷却；4)将团块在湿式球磨机中球磨，然后再在磁选机中进行湿式磁选，得高品位的碳化铁；5)将尾矿经过滤，得到的滤饼中加入第一道浸出液，在一定温度下浸出，再进行过滤，得到高品位的铜精矿；6)将铜精矿中加入第二道浸出液中，在一定温度下搅拌浸出后过滤得到富含铜离子的溶液，优点是能高效分离和回收铜渣里铜和铁。

一种多金属硫铁矿烧渣综合回收金银铜铁的工艺

本发明涉及一种多金属硫铁矿烧渣综合回收金银铜铁的工艺，包括以下步骤：（1）针对含铜、铁、金、银、硫的浮选硫铁精矿，进行氧化焙烧；（2）烧渣加入清水一段酸浸；（3）加稀

Method for recovering valuable metal

The present invention provides a method which is capable of more strictly controlling the oxygen partial pressure required during the melting of a starting material, thereby being capable of recovering a valuable metal more efficiently. A method for recovering valuable metals (Cu, Ni, Co), said method comprising the following steps: a step for preparing, as a starting material, a charge that contains at least phosphorus (P), iron (Fe) and valuable metals; a step for heating and melting the starting material into a melt, and subsequently forming the melt into a molten material that contains an alloy and slag; and a step for recovering the alloy that contains valuable metals by separating the slag from the molten material. With respect to this method for recovering valuable metals, the oxygen partial pressure in the melt is directly measured with use of an oxygen analyzer when the starting material is heated and melted.

回收有价金属的方法

本发明的目的在于提供能够廉价地回收有价金属的方法。本发明是一种回收有价金属的方法，包括以下工序：准备至少包含有价金属的装入物而得到原料的工序；对原料实施氧化处理和还原熔融处理而得到含有合金和炉渣的还原物的工序；以及从还原物中分离炉渣而回收合金的工序，将合金中含有的铜(Cu)量相对于镍(Ni)、钴(Co)和铜(Cu)的总量的质量比(Cu/(Ni+Co+Cu)比)即铜品位设为0.250以上。

유가 금속을 회수하는 방법

본 발명은 원료를 용융할 때에 필요로 되는 산소 분압을 엄밀하게 컨트롤할 수 있고, 그에 의해 유가 금속을 보다 효율적으로 회수할 수 있는 방법을 제공한다. 유가 금속(Cu, Ni, Co)을 회수하는 방법으로서, 이하의 공정; 적어도 인(P),철(Fe) 및 유가 금속을 포함하는 장입물을 원료로서 준비하는 공정과, 원료를 가열 용융하여 용체로 한 후에, 용체를 합금과 슬래그를 포함하는 용융물로 하는 공정, 그리고 용융물로부터 슬래그를 분리하여, 유가 금속을 포함하는 합금을 회수하는 공정을 포함하고, 원료를 가열 용융할 때에, 산소 분석계를 이용하여 용체 중의 산소 분압을 직접 측정하고, 얻어진 측정 결과에 기초하여 산소 분압을 제어하는, 방법이 제공된다.

Preparing cuprous sulphate solutions and recovering copper therefrom

Method for recovering valuable metal

Postupak za delimično prženje koncentrata koji sadrže bakar i/ili zlato

Treating metalliferous compositions of copper, tin, and lead

Method for recovering valuable metal

The present invention provides a method which is capable of more strictly controlling the oxygen partial pressure required during the melting of a starting material, thereby being capable of recovering a valuable metal more efficiently. A method for recovering valuable metals (Cu, Ni, Co), said method comprising the following steps: a step for preparing, as a starting material, a charge that contains at least phosphorus (P), iron (Fe) and valuable metals; a step for heating and melting the starting material into a melt, and subsequently forming the melt into a molten material that contains an alloy and slag; and a step for recovering the alloy that contains valuable metals by separating the slag from the molten material. With respect to this method for recovering valuable metals, the oxygen partial pressure in the melt is directly measured with use of an oxygen analyzer when the starting material is heated and melted, and the oxygen partial pressure is controlled on the basis of the thus-obtained measurement result.

Method for producing copper metal from copper concentrates without generating waste

Method for processing copper and nickel sulfide materials

A method for processing copper and nickel sulfide materials may be used in non-ferrous metallurgy to process copper and nickel sulfide materials. Processing of copper and nickel sulfide materials includes oxidizing torrefaction of a material to obtain cinder, leaching the cinder with a cycling solution, separating the leaching residue, and electro-extraction of copper from the leaching solution. The cinder and particulates generated by the torrefaction are separately leached. The particulates are leached in a cycling copper raffinate together with the separated portion of solution from a cinder processing line, said portion consisting of a portion of solution provided to the leaching after electro-extraction of copper. Particulates leaching residue is separated. Copper is extracted by solvent extraction from the particulates leaching solution, followed by separate electro-extraction of copper from the circulating re-extract. Then, a portion of the raffinate is separated to be forwarded to a nickel production process. The method enables an improvement of performance characteristics of the process, in particular an increase in direct extraction of copper into a marketable product, reduced losses of copper and other valuable components, a reduced incomplete processing of non-ferrous and precious metals by reducing process cycles.

A method of processing copper and nickel sultide materials

A method for processing copper and nickel sulfide materials may be used in non-ferrous metallurgy to process copper and nickel sulfide materials. Processing of copper and nickel sulfide materials includes oxidizing torrefaction of a material to obtain cinder, leaching the cinder with a cycling solution, separating the leaching residue, and electro-extraction of copper from the leaching solution. The cinder and particulates generated by the torrefaction are separately leached. The particulates are leached in a cycling copper raffinate together with the separated portion of solution from a cinder processing line, said portion consisting of a portion of solution provided to the leaching after electro-extraction of copper. Particulates leaching residue is separated. Copper is extracted by solvent extraction from the particulates leaching solution, followed by separate electro-extraction of copper from the circulating reextract. Then, a portion of the raffinate is separated to be forwarded to a nickel production process. The method enables an improvement of performance characteristics of the process, in particular an increase in direct extraction of copper into a marketable product, reduced losses of copper and other valuable components, a reduced incomplete processing of non-ferrous and precious metals by reducing process cycles.

Metodo para procesar materiales de sulfuro de cobre y niquel

Improved hydrometallurgical copper process

Copper metal is produced from copper containing ammonia - ammonium chloride liquor by precipitating copper containing crystals which are subsequently reduced to copper metal using hydrogen containing gas with the source of the copper in the ammonia ammonium chloride being leaching of copper containing ores and/or wastes and/or residues.

有価金属を回収する方法

【課題】有価金属を安価に回収できる方法を提供すること。 【解決手段】有価金属を回収する方法であって、以下の工程；少なくとも有価金属を含む装入物を準備して熔融原料を得る工程と、前記熔融原料に酸化処理及び還元熔融処理を施して、熔融合金とスラグとを含む還元物を得る工程と、前記還元物からスラグを分離して熔融合金を回収する工程と、を含み、前記熔融合金に含まれるニッケル（Ｎｉ）、コバルト（Ｃｏ）及び銅（Ｃｕ）の合計量に対する銅（Ｃｕ）量の質量比（Ｃｕ／（Ｎｉ＋Ｃｏ＋Ｃｕ）比）である銅品位を０．２５０以上にする、方法。 【選択図】図１

Method for recovering valuable metal

The purpose is to provide a method for recovering a valuable metal at low cost.　The present invention is a method for recovering a valuable metal, the method comprising a step of preparing a burden material containing at least a valuable metal to obtain a raw material, a step of subjecting the raw material to an oxidation treatment and a reductive melting treatment to produce a reduced product containing an alloy and a slug, and a step of separating the slug from the reduced product to collect the alloy, in which the copper grade, which is a ratio of the mass of copper (Cu) to the total mass of nickel (Ni), cobalt (Co) and copper (Cu) contained in the alloy (i.e., a Cu/(Ni+Co+Cu) ratio), is adjusted to 0.250 or more.

Method for recovering valuable metal

The purpose is to provide a method for recovering a valuable metal at low cost. The present invention is a method for recovering a valuable metal, the method comprising a step of preparing a burden material containing at least a valuable metal to obtain a raw material, a step of subjecting the raw material to an oxidation treatment and a reductive melting treatment to produce a reduced product containing an alloy and a slag, and a step of separating the slag from the reduced product to collect the alloy, in which the copper grade, which is a ratio of the mass of copper (Cu) to the total mass of nickel (Ni), cobalt (Co) and copper (Cu) contained in the alloy (i.e., a Cu/(Ni+Co+Cu) ratio), is adjusted to 0.250 or more.

Method for recovering valuable metal

The purpose is to provide a method for recovering a valuable metal at low cost. The present invention is a method for recovering a valuable metal, the method comprising a step of preparing a burden material containing at least a valuable metal to obtain a raw material, a step of subjecting the raw material to an oxidation treatment and a reductive melting treatment to produce a reduced product containing an alloy and a slag, and a step of separating the slag from the reduced product to collect the alloy, in which the copper grade, which is a ratio of the mass of copper (Cu) to the total mass of nickel (Ni), cobalt (Co) and copper (Cu) contained in the alloy (i.e., a Cu/(Ni+Co+Cu) ratio), is adjusted to 0.250 or more.

Method for recovering valuable metal

The purpose is to provide a method for recovering a valuable metal at low cost. The present invention is a method for recovering a valuable metal, the method comprising a step of preparing a burden material containing at least a valuable metal to obtain a raw material, a step of subjecting the raw material to an oxidation treatment and a reductive melting treatment to produce a reduced product containing an alloy and a slag, and a step of separating the slag from the reduced product to collect the alloy, in which the copper grade, which is a ratio of the mass of copper (Cu) to the total mass of nickel (Ni), cobalt (Co) and copper (Cu) contained in the alloy (i.e., a Cu/(Ni+Co+Cu) ratio), is adjusted to 0.250 or more.

Method for recovering valuable metal

The purpose is to provide a method for recovering a valuable metal at low cost.　The present invention is a method for recovering a valuable metal, the method comprising a step of preparing a burden material containing at least a valuable metal to obtain a raw material, a step of subjecting the raw material to an oxidation treatment and a reductive melting treatment to produce a reduced product containing an alloy and a slug, and a step of separating the slug from the reduced product to collect the alloy, in which the copper grade, which is a ratio of the mass of copper (Cu) to the total mass of nickel (Ni), cobalt (Co) and copper (Cu) contained in the alloy (i.e., a Cu/(Ni+Co+Cu) ratio), is adjusted to 0.250 or more.

Preparing cuprous sulphate solutions and recovering copper therefrom

Method for partial roasting of copper and/or gold bearing concentrates

The above mentioned invention describes a process for removing arsenic and/or antimony sulfides from copper, nickel and/or gold containing ore particles. Ore particles are fed into a reactor, wherein a fluidizing gas is injected into the reactor to form a fluidized bed containing at least a portion of the ore particles. The ore particles are heated in the presence of inert particles to a temperature between 500 and 850 °C and are withdrawn from the reactor. At least 60 wt-% of the inert particles form a first zone of the fluidized bed and at least 60 wt-% of the ore particles form a second zone above the first zone.

Bakır ve veya altın içeren konsantrelerin kısmi olarak kavrulmasına yönelik yöntem.

Yukarıda değinilen buluş, bakır, nikel ve/veya altın barındıran cevher partiküllerinden arsenik ve/veya antimon sülfitlerin giderilmesine yönelik bir prosesi açıklamaktadır. Cevher partikülleri bir reaktör içine beslenmektedir, burada bir akışkanlaştırma gazı, cevher partiküllerinin en az bir bölümünü barındıran bir akışkan yatağın oluşturulması için reaktör içine enjekte edilmektedir. Cevher partikülleri, 500 ve 850°C arasındaki bir sıcaklığa inert partiküller varlığında ısıtılmaktadır ve reaktörden çekilmektedir. İnert partiküllerin ağırlıkça en az %60'ı, akışkan yatağın bir birinci bölgesini oluşturmaktadır ve cevher partiküllerinin ağırlıkça en az %60'ı, birinci bölgenin üzerinde bir ikinci bölge oluşturmaktadır.

طريقة للتحميص الجزئي لمواد مركزة تحمل النحاس و/أو الذهب

يوضح الاختراع المذكور أعلاه عملية لإزالة مركبات سلفيد sulfides من زرنيخ arsenic و/أو أنتيمون antimony من جسيمات تبر تحتوي على النحاس، نيكل nickel و/أو الذهب. تتم تغذية جسيمات تبر ore particles داخل مفاعل reactor، حيث يتم حقن غاز تميع fluidizing gas داخل المفاعل لتكوين طبقة مميعة fluidized bed تحتوي على جزء على الأقل من جسيمات التبر. يتم تسخين جسيمات التبر في وجود جسيمات خاملة inert particles إلى درجة حرارة بين 500 و850 °م ويتم سحبها من المفاعل. يقوم على الأقل 60٪ بالوزن من الجسيمات الخاملة بتكوين منطقة أولى من الطبقة المميعة ويقوم على الأقل 60٪ بالوزن من جسيمات التبر بتكوين منطقة ثانية فوق المنطقة الأولى. (الشكل 1)

Metodo de calcinacion parcial de concentrados que contienen cobre y/u oro.

La invención mencionada anteriormente describe un proceso de eliminación de sulfuros de arsénico y/o antimonio de partículas de mineral que contenga cobre, níquel y/u oro. Las partículas de mineral se alimentan a un reactor, donde se inyecta un gas fluidizante al reactor para así conformar un lecho fluidizado que contenga al menos una fracción de las partículas de mineral. La temperatura de las partículas de mineral se aumenta en presencia de partículas inertes hasta un rango entre 500 y 850 °C, y se extraen del reactor. Al menos el 60 % por peso de las partículas inertes conforman una primera zona del lecho fluidizado, y al menos el 60 % por peso de las partículas de mineral conforman una segunda zona sobre la primera zona.

Method for partial roasting of copper and/or gold bearing concentrates

The above mentioned invention describes a process for removing arsenic and/or antimony sulfides from copper, nickel and/or gold containing ore particles. Ore particles are fed into a reactor, wherein a fluidizing gas is injected into the reactor to form a fluidized bed containing at least a portion of the ore particles. The ore particles are heated in the presence of inert particles to a temperature between 500 and 850 °C and are withdrawn from the reactor. At least 60 wt-% of the inert particles form a first zone of the fluidized bed and at least 60 wt-% of the ore particles form a second zone above the first zone.

Aperfeicoamento em processo para produzir mate de cobre

Un proceso para producir cobre metalico desde concentrados de cobre sin generacion de residuos

Un proceso para producir cobre metalico desde concentrados de cobre sin generacion de residuos, el cual comprende: (a) reaccion de oxidacion del concentrado de cobre; (b) limpieza y enfriado de los gases; (c) alimentacion al reactor de reduccion; (d) limpieza de los gases; (e) descarga de las calcinas y polvos calientes en agua; (f) separacion magnetica; (g) espesamiento y filtracion de la fraccion magnetica; (h) flotacion de la silice e inertes; (i) espesamiento y filtracion de la silice e inertes; (j) espesamiento y filtracion del concentrado final conteniendo el cobre metalico y metales nobles; (k) fusion del concentrado final de cobre y metales nobles; y (l) recirculacion de la escoria de fusion molida al reactor de tostacion.

Un proceso para producir cobre metalico desde concentrados de cobre sin generacion de residuos.

Un proceso para producir cobre metálico desde concentrados de cobre sin generación de residuos, el cual comprende: (a) reacción de oxidación del concentrado de cobre; (b) limpieza y enfriado de los gases; (c) alimentación al reactor de reducción; (d) limpieza de los gases; (e) descarga de las calcinas y polvos calientes en agua; (f) separación magnética; (g) espesamiento y filtración de la fracción magnética; (h) flotación de la sílice e inertes; (i) espesamiento y filtración de la sílice e inertes; (j) espesamiento y filtración del concentrado final conteniendo el cobre metálico y metales nobles; (k) fusión del concentrado final de cobre y metales nobles; y (l) recirculación de la escoria de fusión molida al reactor de tostación.

Process for producing copper metal from copper concentrates without generating waste

The invention relates to a method for producing copper metal from copper concentrates without generating waste, which comprises: (a) oxidizing copper concentrate; (b) cleaning and cooling the gases; (c) feeding to a reduction reactor; (d) cleaning the gases; (e) discharging hot powders and calcines into water; (f) performing magnetic separation; (g) thickening and filtering the magnetic fraction; (h) floating silica and inert materials; (i) thickening and filtering the silica and inert materials; (j) thickening and filtering the final concentrate containing the copper metal and noble metals; (k) smelting the final concentrate of copper and noble metals; and (l) recirculating ground smelt slag to a roasting reactor.

Un proceso para producir cobre metálico desde concentrados de cobre sin generación de residuos

Un proceso para producir cobre metálico desde concentrados de cobre sin generación de residuos, el cual comprende: (a) reacción de oxidación del concentrado de cobre; (b) limpieza y enfriado de los gases; (c) alimentación al reactor de reducción; (d) limpieza de los gases; (e) descarga de las calcinas y polvos calientes en agua; (f) separación magnética; (g) espesamiento y filtración de la fracción magnética; (h) flotación de la sílice e inertes; (i) espesamiento y filtración de la sílice e inertes; (j) espesamiento y filtración del concentrado final conteniendo el cobre metálico y metales nobles; (k) fusión del concentrado final de cobre y metales nobles; y (l) recirculación de la escoria de fusión molida al reactor de tostación.

Recovery of zinc from zinc bearing sulphidic ores and concentrates by controlled oxidation roasting.

一种改善铜冶炼渣中有价组分粒径的方法

本发明公开了一种改善铜冶炼渣中有价组分粒径的方法，包括如下步骤：将铜渣颗粒在颚式破碎机和对辊破碎机中破碎至‑2mm，然后球磨至‑200目颗粒占80％，烘干后与添加剂充分混合，然后在铜渣表层使用石墨进行埋碳封装，混合物在马弗炉中先低温焙烧，使渣中的磁铁矿被充分氧化，再将温度提高至熔融；最后将冷却后产物破碎至10mm、使用振磨机磨至‑80目得到目标产物。本发明对铜渣粉末进行低温氧化焙烧‑高温埋碳熔融重凝，先在铁橄榄石的氧化温度下将铜渣中的铁橄榄石氧化为磁铁矿，然后在铜渣的熔融温度下，石墨开始氧化为CO和CO 2 ，降低了熔体气液界面的氧分压，可对渣中磁铁矿和铜锍的凝聚生长过程进行保护。

Process of and furnace for refining copper

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Verfahren zur Darstellung von Kupfer- und Eisenoxyd aus Kupfer- bezw. Eisenkies unter Nebengewinnung von Schwefelsäure, sowie zur Weiterverarbeitung der dargestellten , Oxyde auf metallisches Kupfer bezw. höhere Eisenoxyde

Treating materials containing copper and sulphur

Method for processing copper and nickel sulfide materials

A method for processing copper and nickel sulfide materials may be used in non-ferrous metallurgy to process copper and nickel sulfide materials. Processing of copper and nickel sulfide materials includes oxidizing torrefaction of a material to obtain cinder, leaching the cinder with a cycling solution, separating the leaching residue, and electro-extraction of copper from the leaching solution. The cinder and particulates generated by the torrefaction are separately leached. The particulates are leached in a cycling copper raffinate together with the separated portion of solution from a cinder processing line, said portion consisting of a portion of solution provided to the leaching after electro-extraction of copper. Particulates leaching residue is separated. Copper is extracted by solvent extraction from the particulates leaching solution, followed by separate electro-extraction of copper from the circulating re-extract. Then, a portion of the raffinate is separated to be forwarded to a nickel production process. The method enables an improvement of performance characteristics of the process, in particular an increase in direct extraction of copper into a marketable product, reduced losses of copper and other valuable components, a reduced incomplete processing of non-ferrous and precious metals by reducing process cycles.

Verfahren zur Verarbeitung von Kobalt-Nickel-Kupfer-Speisen

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Method for recovering valuable metal

廃棄物を発生させずに銅濃縮物から銅金属を製造する方法

폐기물을 발생시키지 않고 구리 정광으로부터 구리 금속을 생산하는 방법

본 발명은 (a) 구리 정광(copper concentrate)을 산화시키는 단계; (b) 가스를 세정 및 냉각하는 단계; (c) 환원 반응기에 공급하는 단계; (d) 가스를 세정하는 단계; (e) 고온의 분말과 하소물질(calcines)을 물에 배출하는 단계; (f) 자기 분리를 수행하는 단계; (g) 자성 분획을 증점화(thickening) 및 여과하는 단계; (h) 실리카 및 불활성 물질을 부유시키는 단계; (i) 실리카 및 불활성 물질을 증점화 및 여과하는 단계; (j) 구리 금속 및 귀금속을 함유하는 최종 정광을 증점화 및 여과하는 단계; (k) 구리 및 귀금속의 최종 정광을 제련하는 단계; 및 (l) 분쇄된 제련 슬래그를 배소 반응기(roasting reactor)로 재순환시키는 단계를 포함하는, 폐기물 발생 없이 구리 정광으로부터 구리 금속을 생산하는 방법에 관한 것이다.

Process of extracting copper pyrites

Verfahren zur aufarbeitung von kupferzementatschlaemmen