oxidation roasting of a copper sulfide ore

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oxidation roasting of a copper sulfide ore

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Recovery of Copper from Copper Sulfide Concentrate by ...

2015-2-16  Oxidation roasting needs high roasting temperature and copper will suffer a loss by generating copper ferrite. The exhaust gas (SO 2, Cl 2, HCl) from the furnace in chlorination roasting process is a threat to the environment. In sulfation roasting, copper was mainly formed to soluble sulfate by water or dilute acid after roasting.2015-2-16  Oxidation roasting needs high roasting temperature and copper will suffer a loss by generating copper ferrite. The exhaust gas (SO 2, Cl 2, HCl) from the furnace in chlorination roasting process is a threat to the environment. In sulfation roasting, copper was mainly formed to soluble sulfate by water or dilute acid after roasting.

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(PDF) LEACHING OF A ROASTED COPPER SULFIDE ORE

LEACHING OF A ROASTED COPPER SULFIDE ORE Rosselle Kim P. Castillano, Wilfredo T. Gatdula Jr., Gin Derick L. Magno, Jhunalyn H. Parantar METE 157N: HYDROMETALLURGY LABORTORY ABSTRACT Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions, but a very high extraction can be obtained if the copper ore is in the oxidized condition.LEACHING OF A ROASTED COPPER SULFIDE ORE Rosselle Kim P. Castillano, Wilfredo T. Gatdula Jr., Gin Derick L. Magno, Jhunalyn H. Parantar METE 157N: HYDROMETALLURGY LABORTORY ABSTRACT Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions, but a very high extraction can be obtained if the copper ore is in the oxidized condition.

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ROASTING OF SULFIDE MINERALS - Wiley Online Library

2017-8-22  ROASTING OF SULFIDE MINERALS In addition to common metals like copper, lead, zinc, and nickel a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. Sulfides are not reduced with the most widely used redu-cing agents, carbon and hydrogen, because the free energy change for the ...2017-8-22  ROASTING OF SULFIDE MINERALS In addition to common metals like copper, lead, zinc, and nickel a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. Sulfides are not reduced with the most widely used redu-cing agents, carbon and hydrogen, because the free energy change for the ...

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(PDF) Recovery of Copper from Copper Sulfide

Abstract. Sulfation roasting was studied to extract copper from the copper sulfide concentrate. Sodium sul-. fite was added as sulfation a gent to the copper sulfide co ncentrate during roasti ng ...Abstract. Sulfation roasting was studied to extract copper from the copper sulfide concentrate. Sodium sul-. fite was added as sulfation a gent to the copper sulfide co ncentrate during roasti ng ...

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Oxidation of Copper Sulfides and Secondary Sulfide ...

Secondary copper sulfide enrichment is widely accepted today as resulting from oxidation of copper sulfide minerals, downward migration of soluble copper sulfates, and precipitation as copper sulfide by reaction with primary sulfide minerals. Chalcopyrite is replaced preferentially to pyrite.Secondary copper sulfide enrichment is widely accepted today as resulting from oxidation of copper sulfide minerals, downward migration of soluble copper sulfates, and precipitation as copper sulfide by reaction with primary sulfide minerals. Chalcopyrite is replaced preferentially to pyrite.

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Supergene Oxidation of Copper Deposits: Zoning and ...

2011-5-30  accumulations associated with weathering of copper sulfide deposits, with emphasis on minerals that occur in the supergene oxide zones of porphyry copper and skarn ore deposits.“Copper oxides” are defined as those copper minerals containing oxidized anions, especially copper oxides, sensu strictu, sulfates, phosphates, carbonates, and ...2011-5-30  accumulations associated with weathering of copper sulfide deposits, with emphasis on minerals that occur in the supergene oxide zones of porphyry copper and skarn ore deposits.“Copper oxides” are defined as those copper minerals containing oxidized anions, especially copper oxides, sensu strictu, sulfates, phosphates, carbonates, and ...

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Kinetics of oxidation of copper sulfide - Welcome to IAS ...

2016-5-16  SEVERAL investigators,I-5 have studied the oxidation of copper sulfides and it has been generally agreed that in the temperature range 750° to 950°C, the oxida-tion of cuprous sulfide canbe represented as Cu2S + i~-O21 = Cu~O +SOz [i] AF~50o c= --64,850 cal followed by Cu20 + 1702 = 2CuO [2] AF~50oC= --6090 cal2016-5-16  SEVERAL investigators,I-5 have studied the oxidation of copper sulfides and it has been generally agreed that in the temperature range 750° to 950°C, the oxida-tion of cuprous sulfide canbe represented as Cu2S + i~-O21 = Cu~O +SOz [i] AF~50o c= --64,850 cal followed by Cu20 + 1702 = 2CuO [2] AF~50oC= --6090 cal

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Effect of Roasting Temperature for Copper Leaching of ...

2018-12-6  perature 500˚C, roasting time 3 h, concentrate and potassium chloride 1:0.7 was 93.2%. Figure 4 and Figure 5 are shown SEM-EDX analysis results on roasting concentrate with KCl and solid residue after leaching. From Figure 4, it can be seen that roasting cake surface was changed, and the copper sulfide minerals2018-12-6  perature 500˚C, roasting time 3 h, concentrate and potassium chloride 1:0.7 was 93.2%. Figure 4 and Figure 5 are shown SEM-EDX analysis results on roasting concentrate with KCl and solid residue after leaching. From Figure 4, it can be seen that roasting cake surface was changed, and the copper sulfide minerals

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Roasting of Sulfide Minerals - Physical Chemistry of ...

2016-2-10  Summary. In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. In the extraction of metals from sulfides, roasting is applied to achieve different objectives depending on the overall process flow sheet.2016-2-10  Summary. In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. In the extraction of metals from sulfides, roasting is applied to achieve different objectives depending on the overall process flow sheet.

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A technique to determine ore variability in a sulphide ore ...

2019-10-1  There is a good correlation between experimental and predicted values, except the Cu Enriched ore, which indicates predictive capability of OI% methodology. It must be noted that mineralogy and surface oxidation of the copper enriched ore is considerably different from that of the sulphide ore. Download : Download high-res image (172KB)2019-10-1  There is a good correlation between experimental and predicted values, except the Cu Enriched ore, which indicates predictive capability of OI% methodology. It must be noted that mineralogy and surface oxidation of the copper enriched ore is considerably different from that of the sulphide ore. Download : Download high-res image (172KB)

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Chalcocite Oxidation Roasting - 911metallurgist

2021-2-4  Partial roasting of sulfide copper minerals was practiced industrially for many years as a practical means of adjusting sulfur content to appropriate levels for matte-smelting. The development of fluid-bed systems has introduced possibilities of selectively roasting one or more mineral components in the same ore by judicious regulation of roast ...2021-2-4  Partial roasting of sulfide copper minerals was practiced industrially for many years as a practical means of adjusting sulfur content to appropriate levels for matte-smelting. The development of fluid-bed systems has introduced possibilities of selectively roasting one or more mineral components in the same ore by judicious regulation of roast ...

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METHOD OF ROASTING COPPER SULPHIDE

A method of roasting copper-iron-sulphide ore concentrate or mixture, wherein the ratio of sulphur values to copper values is preferably at least one, to yield a calcined product, for the separation and recovery of copper values by acid leaching and electrolytic deposition, having at least 99 percent of its copper values soluble in dilute sulphuric acid and no more than 10 percent of the iron ...A method of roasting copper-iron-sulphide ore concentrate or mixture, wherein the ratio of sulphur values to copper values is preferably at least one, to yield a calcined product, for the separation and recovery of copper values by acid leaching and electrolytic deposition, having at least 99 percent of its copper values soluble in dilute sulphuric acid and no more than 10 percent of the iron ...

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The roasting of copper sulphides. II. Natural copper

The roasting of precipitated copper sulphide in a current of air has been investigated by thermogravimetric analysis in the temperature range 150–800° under isothermal conditions.The roasting of precipitated copper sulphide in a current of air has been investigated by thermogravimetric analysis in the temperature range 150–800° under isothermal conditions.

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Oxidation of Copper Sulfides and Secondary Sulfide ...

Secondary copper sulfide enrichment is widely accepted today as resulting from oxidation of copper sulfide minerals, downward migration of soluble copper sulfates, and precipitation as copper sulfide by reaction with primary sulfide minerals. Chalcopyrite is replaced preferentially to pyrite.Secondary copper sulfide enrichment is widely accepted today as resulting from oxidation of copper sulfide minerals, downward migration of soluble copper sulfates, and precipitation as copper sulfide by reaction with primary sulfide minerals. Chalcopyrite is replaced preferentially to pyrite.

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(PDF) Recovery of Copper from Copper Sulfide

Abstract. Sulfation roasting was studied to extract copper from the copper sulfide concentrate. Sodium sul-. fite was added as sulfation a gent to the copper sulfide co ncentrate during roasti ng ...Abstract. Sulfation roasting was studied to extract copper from the copper sulfide concentrate. Sodium sul-. fite was added as sulfation a gent to the copper sulfide co ncentrate during roasti ng ...

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Supergene Oxidation of Copper Deposits: Zoning and ...

2011-5-30  accumulations associated with weathering of copper sulfide deposits, with emphasis on minerals that occur in the supergene oxide zones of porphyry copper and skarn ore deposits.“Copper oxides” are defined as those copper minerals containing oxidized anions, especially copper oxides, sensu strictu, sulfates, phosphates, carbonates, and ...2011-5-30  accumulations associated with weathering of copper sulfide deposits, with emphasis on minerals that occur in the supergene oxide zones of porphyry copper and skarn ore deposits.“Copper oxides” are defined as those copper minerals containing oxidized anions, especially copper oxides, sensu strictu, sulfates, phosphates, carbonates, and ...

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Kinetics of oxidation of copper sulfide - Welcome to IAS ...

2016-5-16  SEVERAL investigators,I-5 have studied the oxidation of copper sulfides and it has been generally agreed that in the temperature range 750° to 950°C, the oxida-tion of cuprous sulfide canbe represented as Cu2S + i~-O21 = Cu~O +SOz [i] AF~50o c= --64,850 cal followed by Cu20 + 1702 = 2CuO [2] AF~50oC= --6090 cal2016-5-16  SEVERAL investigators,I-5 have studied the oxidation of copper sulfides and it has been generally agreed that in the temperature range 750° to 950°C, the oxida-tion of cuprous sulfide canbe represented as Cu2S + i~-O21 = Cu~O +SOz [i] AF~50o c= --64,850 cal followed by Cu20 + 1702 = 2CuO [2] AF~50oC= --6090 cal

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Roasting of Sulfide Minerals - Physical Chemistry of ...

2016-2-10  Summary. In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. In the extraction of metals from sulfides, roasting is applied to achieve different objectives depending on the overall process flow sheet.2016-2-10  Summary. In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. In the extraction of metals from sulfides, roasting is applied to achieve different objectives depending on the overall process flow sheet.

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In–situ XRD and EDS method study on the oxidation ...

2017-6-12  Oxidation mechanism of Ni–Cu sulphide ore. Considering the aforementioned results, the reaction sequence of the Ni–Cu sulphide ore during the roasting in 2017-6-12  Oxidation mechanism of Ni–Cu sulphide ore. Considering the aforementioned results, the reaction sequence of the Ni–Cu sulphide ore during the roasting in

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Explain the following:Partial roasting of sulphide ore is ...

Partial roasting of sulphide ore is done in the metallurgy of copper. Partial reduction of sulphide ores give copper oxide which further reacts with copper sulphide to show auto reduction. 2CuS + 3O 2 Partial roasting of sulphide ore is done in the metallurgy of copper. Partial reduction of sulphide ores give copper oxide which further reacts with copper sulphide to show auto reduction. 2CuS + 3O 2

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METHOD OF ROASTING COPPER SULPHIDE

A method of roasting copper-iron-sulphide ore concentrate or mixture, wherein the ratio of sulphur values to copper values is preferably at least one, to yield a calcined product, for the separation and recovery of copper values by acid leaching and electrolytic deposition, having at least 99 percent of its copper values soluble in dilute sulphuric acid and no more than 10 percent of the iron ...A method of roasting copper-iron-sulphide ore concentrate or mixture, wherein the ratio of sulphur values to copper values is preferably at least one, to yield a calcined product, for the separation and recovery of copper values by acid leaching and electrolytic deposition, having at least 99 percent of its copper values soluble in dilute sulphuric acid and no more than 10 percent of the iron ...

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The roasting of copper sulphides. II. Natural copper

The roasting of precipitated copper sulphide in a current of air has been investigated by thermogravimetric analysis in the temperature range 150–800° under isothermal conditions.The roasting of precipitated copper sulphide in a current of air has been investigated by thermogravimetric analysis in the temperature range 150–800° under isothermal conditions.

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Supergene Oxidation of Copper Deposits: Zoning and ...

2011-5-30  accumulations associated with weathering of copper sulfide deposits, with emphasis on minerals that occur in the supergene oxide zones of porphyry copper and skarn ore deposits.“Copper oxides” are defined as those copper minerals containing oxidized anions, especially copper oxides, sensu strictu, sulfates, phosphates, carbonates, and ...2011-5-30  accumulations associated with weathering of copper sulfide deposits, with emphasis on minerals that occur in the supergene oxide zones of porphyry copper and skarn ore deposits.“Copper oxides” are defined as those copper minerals containing oxidized anions, especially copper oxides, sensu strictu, sulfates, phosphates, carbonates, and ...

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HIGH OXIDATIVE PROCESS FOR DEAD ROASTING OF

2018-1-4  The ore bodies: Coka Marin, Tenka and Blagojev Kamen, in Eastern Serbia, contain polymetallic sulfide minerals rich in precious metals: silver and gold. Basically, these minerals contain: chalcopyrite, CuFeS2, pyrite, FeS2, as well as lead and zinc sulfide. Oxidation roasting of sulfide compound is the first stage of processing sulfide ...2018-1-4  The ore bodies: Coka Marin, Tenka and Blagojev Kamen, in Eastern Serbia, contain polymetallic sulfide minerals rich in precious metals: silver and gold. Basically, these minerals contain: chalcopyrite, CuFeS2, pyrite, FeS2, as well as lead and zinc sulfide. Oxidation roasting of sulfide compound is the first stage of processing sulfide ...

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Oxidative Hydrometallurgy of Sulphide Minerals

2018-9-25  Sulphide minerals are one of the most important sources of value metals, such as gold, silver, copper, zinc, etc. Due to the strong sulphur binding to these minerals, metals are usually extracted by pyrometallurgical route or hydrometallurgy with chemical oxidation. Of these, hydrometallurgy apparently has a lower environmental impact, which has2018-9-25  Sulphide minerals are one of the most important sources of value metals, such as gold, silver, copper, zinc, etc. Due to the strong sulphur binding to these minerals, metals are usually extracted by pyrometallurgical route or hydrometallurgy with chemical oxidation. Of these, hydrometallurgy apparently has a lower environmental impact, which has

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REACTION MECHANISM AND KINETICS OF SULFIDE

2017-9-27  Sulfide copper concentrate from domestic ore deposit (Bor, Serbia) was subjected to oxidation in the air atmosphere due to a better understanding of reaction mechanism and oxidation of various sulfides present in the copper concentrate at elevated temperatures. Results of the initial sample characterization showed that2017-9-27  Sulfide copper concentrate from domestic ore deposit (Bor, Serbia) was subjected to oxidation in the air atmosphere due to a better understanding of reaction mechanism and oxidation of various sulfides present in the copper concentrate at elevated temperatures. Results of the initial sample characterization showed that

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Roasting in Metallurgy - Mineral Processing Metallurgy

2016-10-31  In metallurgy, the operation of roasting, as a preliminary to chlorination, has for its object the expulsion of the sulphur, arsenic, antimony and other volatile substances existing in the ore, and the oxidation of the metals left behind, so as to leave nothing 2016-10-31  In metallurgy, the operation of roasting, as a preliminary to chlorination, has for its object the expulsion of the sulphur, arsenic, antimony and other volatile substances existing in the ore, and the oxidation of the metals left behind, so as to leave nothing

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Roasting of Sulfide Minerals - Physical Chemistry of ...

2016-2-10  Summary. In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. In the extraction of metals from sulfides, roasting is applied to achieve different objectives depending on the overall process flow sheet.2016-2-10  Summary. In addition to common metals like copper, lead, zinc, and nickel, a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. In the extraction of metals from sulfides, roasting is applied to achieve different objectives depending on the overall process flow sheet.

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Chapter 6 Copper Production Technology

1996-11-20  Copper ore, other minerals, waste rock (gangue) Copper minerals, iron and other metallic pyrites, byproducts, and gangue Same as mining but in the form of fine particles Copper minerals, iron pyrites, miscellaneous minerals (including valuable byproducts), and water (8-10%) Copper sulfide (CU2S), iron sulfide (FeS), byproducts, tramp elements ...1996-11-20  Copper ore, other minerals, waste rock (gangue) Copper minerals, iron and other metallic pyrites, byproducts, and gangue Same as mining but in the form of fine particles Copper minerals, iron pyrites, miscellaneous minerals (including valuable byproducts), and water (8-10%) Copper sulfide (CU2S), iron sulfide (FeS), byproducts, tramp elements ...

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LIST OF ORES AND THEIR NAMES SULPHIDE ORE

2021-5-27  LIST OF ORES AND THEIR NAMES SULPHIDE ORE PbS Galena HgS Cinnabar ZnS Zinc blende Cu2S Copper glance CuFeS2 Copper Pyrites (Chalcopyrite) FeS2 Iron pyrites or Fool's gold Ag2S Silver glance or Argentite Cu2S.Ag2S Copper silver glance Ag2S.Sb2S3 Pyrargirite or Rubisilver HALIDE ORE NaCl Rock Salt KCl Sylvine2021-5-27  LIST OF ORES AND THEIR NAMES SULPHIDE ORE PbS Galena HgS Cinnabar ZnS Zinc blende Cu2S Copper glance CuFeS2 Copper Pyrites (Chalcopyrite) FeS2 Iron pyrites or Fool's gold Ag2S Silver glance or Argentite Cu2S.Ag2S Copper silver glance Ag2S.Sb2S3 Pyrargirite or Rubisilver HALIDE ORE NaCl Rock Salt KCl Sylvine

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