chalcopyrite flotation chalcopyrite

  • Characterization and Flotation of Sulfur from Chalcopyrite

    Characterization and Flotation of Sulfur from Chalcopyrite

    Vo1. 2 Characterization and Flotation of Sulfur from Chalcopyrite Concentrate Leaching 7 A sodium silicate dosage of 50 g/t increases the sulfur grade of the concentrate to 89 with a recovery of 91 . The grade of both copper and siliceous material has

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  • A Review on Novel Techniques for Chalcopyrite Ore Processing

    A Review on Novel Techniques for Chalcopyrite Ore Processing

    The different concentrates obtained through differential flotation in pyrometallurgy are usually of poor quality with low metal recovery. This further makes pyrometallurgical processing of chalcopyrite very difficult and costly and rendered them difficult to commercialize.

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  • Mining Industry Copper Sulfide Ore and Flotation Process

    Mining Industry Copper Sulfide Ore and Flotation Process

    Jul 09 2019 · The chalcopyrite located on the surface of the deposit is oxidized for a long time with low hardness easy to be pulverized and the floatability is also deteriorated. The most commonly used collector for flotation chalcopyrite is xanthate chalcopyrite is easy emerged in

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  • Dual effects of sodium sulfide on the flotation behavior

    Dual effects of sodium sulfide on the flotation behavior

    This study explores the flotation behavior of chalcopyrite in the presence of different concentrations of sodium sulfide (Na2S·9H2O) at pH 12 under controlled potential conditions. It was observed that the flotation of chalcopyrite is not depressed completely when the pulp potential is low even at high concentrations of sodium sulfide i.e. 10−1–10−2 mol/L. However a partial and

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  • Flotation separation of chalcopyrite from talc using

    Flotation separation of chalcopyrite from talc using

    Abstract Flotation separation of chalcopyrite from talc using carboxymethyl chitosan as a depressant was studied. Flotation tests indicated that carboxymethyl chitosan had a selective depression effect on talc and the use of carboxymethyl chitosan as the depressant could achieve flotation separation of chalcopyrite from talc at pH 7.

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  • Electrolysis Oxidation of Chalcopyrite and Molybdenite for

    Electrolysis Oxidation of Chalcopyrite and Molybdenite for

    Electrolysis oxidation of chalcopyrite and molybdenite was investigated via various electrochemical methods with the aim of realizing selective flotation of these minerals.

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  • Mining Industry Copper Sulfide Ore and Flotation Process

    Mining Industry Copper Sulfide Ore and Flotation Process

    Jul 09 2019 · The chalcopyrite located on the surface of the deposit is oxidized for a long time with low hardness easy to be pulverized and the floatability is also deteriorated. The most commonly used collector for flotation chalcopyrite is xanthate chalcopyrite is easy emerged in

    Get Price
  • Flotation of chalcopyrite in water containing bacteria

    Flotation of chalcopyrite in water containing bacteria

    In this study we investigated the effect of bacteria (E. coli) on mineral (chalcopyrite) flotation performance using both microflotation and scale-up batch flotation tests. Microflotation results indicated that the presence of E. coli in water had an adverse effect on the flotation of chalcopyrite.

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  • Copper FlotationElmhurst College

    Copper FlotationElmhurst College

    Flotation Concentration Asarco Mining Operations in Arizona Mission Mine Tucson Text edited by Rob Vugteveen Director Asarco Mineral Discovery Center . Ore Concentration by Froth Flotation. The chalcopyrite grains become coated with xanthate molecules with their hydrophobic ends waving around trying desperately to get out of the water.

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  • A Review on Novel Techniques for Chalcopyrite Ore Processing

    A Review on Novel Techniques for Chalcopyrite Ore Processing

    The different concentrates obtained through differential flotation in pyrometallurgy are usually of poor quality with low metal recovery. This further makes pyrometallurgical processing of chalcopyrite very difficult and costly and rendered them difficult to commercialize.

    Get Price
  • NIOSHTIC-2 Publications Search10004717The Flotation

    NIOSHTIC-2 Publications Search10004717The Flotation

    The flotation of chalcocite bornite chalcopyrite and pyrite has been studied in a microflotation cell in which the potential of a bed of the mineral particles could be controlled electromechanically.

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  • Control of grinding conditions in the flotation of

    Control of grinding conditions in the flotation of

    Mar 01 2003 · Read "Control of grinding conditions in the flotation of chalcopyrite and its separation from pyrite International Journal of Mineral Processing" on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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  • Effect of Regrinding Conditions on the Flotation of

    Effect of Regrinding Conditions on the Flotation of

    The effects of regrinding conditions on chalcopyrite flotation and its separation from pyrite were studied. It was found that the stainless steel grinding media which produced an oxidising environment was more beneficial for the separation of chalcopyrite from pyrite after regrinding.

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  • NIOSHTIC-2 Publications Search10008188Effect of

    NIOSHTIC-2 Publications Search10008188Effect of

    Chalcopyrite floatability increased with increasing flotation pulp potential. For given grinding conditions flotation with air gave higher chalcopyrite recovery than flotation with n2. For the natural ore chalcopyrite was depressed while molybdenite was floated with n2 and chalcopyrite was subsequently recovered by flotation with air.

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  • Selective flotation of chalcopyrite and molybdenite with

    Selective flotation of chalcopyrite and molybdenite with

    The selective flotation of chalcopyrite (CuFeS 2) and molybdenite (MoS 2) was studied using surface oxidation treatments (i.e. ozone (O 3) and hydrogen peroxide (H 2 O 2)).The results indicated that the oxidation treatments had different effects on the wettability of chalcopyrite and molybdenite.

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  • Effects of size distribution on flotation kinetics of

    Effects of size distribution on flotation kinetics of

    flotation rate constant as the particle size distribution can be found so that the conclusions and the law about effects of size distribution on flotation kinetics of Chalcopyrite can be concluded. I. EXPERIMENTAL A. Preparation of experimental sample The

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  • Slime coating of kaolinite on chalcopyrite in saline water

    Slime coating of kaolinite on chalcopyrite in saline water

    In saline water flotation the salinity can cause a distinguishable slime coating of clay minerals on chalcopyrite particles through its effect on their electrical double layers in aqueous solutions.

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  • Copper Sulfide FlotationMineral Processing  Metallurgy

    Copper Sulfide FlotationMineral Processing Metallurgy

    The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore ranging from 60-65 silica with pyrite arsenopyrite and calcite with 3 to 4 copper. This flowsheet though simple is adequate for tonnages of 100 to 500 tons or more per day depending on the size of equipment

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  • Separation Process of Chalcopyrite Galenite Sphalerite

    Separation Process of Chalcopyrite Galenite Sphalerite

    Under relatively coarse fineness chalcopyrite and pyrite can be fully dissociated and separated. Separation Turn chalcopyrite first pyrite second. 1.2 Bulk Flotation This method is suitable for the combination of chalcopyrite and pyrite in the ore. The size of the coalition of chalcopyrite

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  • Selective Flotation of Chalcopyrite and Marmatite by MBT

    Selective Flotation of Chalcopyrite and Marmatite by MBT

    Aug 13 2012 · Various collectors were compared in the selective flotation of copper–zinc ore by using isopropyl ethylthionocarbamate (Z-200) buthl xanthate ammonium dibutyl dithiophosphate and mercapto benzothiazole (MBT). The latter showed effective selectivity in the flotation of chalcopyrite and marmatite and was selected for a detailed study by using cyclic voltammetry and Tafel. The

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  • Effect of Ultrasonic Pre-Treatment and Aeration on

    Effect of Ultrasonic Pre-Treatment and Aeration on

    the flotation of pyrite while the decrease in recovery under alkaline conditions may be related to the formation of iron hydroxide species or lack of dixanthogen on the surface. As shown in Fig. 3(b) flotation behaviour of the mixture of chalcopyrite and pyrite is to some extent

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  • (PDF) Selective flotation of chalcopyrite from pyrite

    (PDF) Selective flotation of chalcopyrite from pyrite

    Flotation results showed that the selective flotation of pyrite from galena can be achieved under the preferred reagent scheme i.e. 400 g/t chitosan (10 kDa) 1600 g/t ethyl xanthate and 100 g

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  • NIOSHTIC-2 Publications Search10004717The Flotation

    NIOSHTIC-2 Publications Search10004717The Flotation

    The flotation of chalcocite bornite chalcopyrite and pyrite has been studied in a microflotation cell in which the potential of a bed of the mineral particles could be controlled electromechanically.

    Get Price
  • Copper FlotationElmhurst College

    Copper FlotationElmhurst College

    Flotation Concentration Asarco Mining Operations in Arizona Mission Mine Tucson Text edited by Rob Vugteveen Director Asarco Mineral Discovery Center . Ore Concentration by Froth Flotation. The chalcopyrite grains become coated with xanthate molecules with their hydrophobic ends waving around trying desperately to get out of the water.

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  • Flotation separation of chalcopyrite from galena by

    Flotation separation of chalcopyrite from galena by

    Flotation separation of chalcopyrite from galena by sodium humate and ammonium persulfate Rui-zeng LIU 1 Wen-qing QIN 1 Fen JIAO Xing-jie WANG Bin PEI2 Yong-jun YANG2 Chun-hua LAI3 1. School of Minerals Processing and Bioengineering Central South University Changsha 410083 China 2.

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  • Flotation separation of chalcopyrite from galena by

    Flotation separation of chalcopyrite from galena by

    Flotation separation of chalcopyrite from galena by sodium humate and ammonium persulfate Rui-zeng LIU 1 Wen-qing QIN 1 Fen JIAO Xing-jie WANG Bin PEI2 Yong-jun YANG2 Chun-hua LAI3 1. School of Minerals Processing and Bioengineering Central South University Changsha 410083 China 2.

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  • Effects of size distribution on flotation kinetics of

    Effects of size distribution on flotation kinetics of

    flotation rate constant as the particle size distribution can be found so that the conclusions and the law about effects of size distribution on flotation kinetics of Chalcopyrite can be concluded. I. EXPERIMENTAL A. Preparation of experimental sample The

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  • Porphyry chalcopyrite beneficiation plant

    Porphyry chalcopyrite beneficiation plant

    porphyry chalcopyrite beneficiation plant Samples of mineral specimen grade chalcopyrite porphyry copper ore and porphyry copper tailings were used in this study nearly pure African chalcopyrite was used to determine the hydrophobic characteristics of chalcopyrite. The . pyrite beneficiation plant flotation machine for sale

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  • Chlorides on Chalcopyrite FlotationMDPI

    Chlorides on Chalcopyrite FlotationMDPI

    Figure 2 shows the effects of typical soluble chloride salts on chalcopyrite flotation. As the pulp was adjusted to pH 10 using NaOH approximately 10º4 M Na was added to the slurry which was present as a background Na concentration.

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  • NIOSHTIC-2 Publications Search10008188Effect of

    NIOSHTIC-2 Publications Search10008188Effect of

    Chalcopyrite floatability increased with increasing flotation pulp potential. For given grinding conditions flotation with air gave higher chalcopyrite recovery than flotation with n2. For the natural ore chalcopyrite was depressed while molybdenite was floated with n2 and chalcopyrite was subsequently recovered by flotation with air.

    Get Price
  • Copper FlotationElmhurst College

    Copper FlotationElmhurst College

    Flotation Concentration Asarco Mining Operations in Arizona Mission Mine Tucson Text edited by Rob Vugteveen Director Asarco Mineral Discovery Center . Ore Concentration by Froth Flotation. The chalcopyrite grains become coated with xanthate molecules with their hydrophobic ends waving around trying desperately to get out of the water.

    Get Price
  • Flotation kinetics and thermodynamic behavior of

    Flotation kinetics and thermodynamic behavior of

    The monomineral flotation test and microcalorimetry were used to study the flotation kinetics and thermodynamic behavior of chalcopyrite and pyrite in high alkaline systems of lime and NaOH. The results showed that in these systems there were less hydrophilic substances on the chalcopyrite surface so that the apparent activation energy of sodium butyl xanthate (SBX) adsorption on chalcopyrite

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  • Structural Modification of Xanthate Collectors To Enhance

    Structural Modification of Xanthate Collectors To Enhance

    Structural Modification of Xanthate Collectors To Enhance the Flotation Selectivity of Chalcopyrite Xin Ma † Liuyin Xia ‡ Shuai Wang † Hong Zhong † and Hui Jia† †College of Chemistry and Chemical Engineering Central South University Changsha 410083 People s Republic of China ‡Surface Science University of Western Ontario London Ontario N6G0J3 Canada

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  • Flotation separation of chalcopyrite from talc using

    Flotation separation of chalcopyrite from talc using

    Abstract Flotation separation of chalcopyrite from talc using carboxymethyl chitosan as a depressant was studied. Flotation tests indicated that carboxymethyl chitosan had a selective depression effect on talc and the use of carboxymethyl chitosan as the depressant could achieve flotation separation of chalcopyrite from talc at pH 7.

    Get Price
  • NIOSHTIC-2 Publications Search10011589Effect of

    NIOSHTIC-2 Publications Search10011589Effect of

    Increased chalcopyrite floatability was observed with more positive flotation pulp potentials. For given grinding conditions the type of flotation gas has a strong effect on recovery. For example for natural ore chalcopyrite was depressed while molybdenite was floated with n2 and chalcopyrite was subsequently recovered by flotation with air.

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  • Effect of Ultrasonic Pre-Treatment and Aeration on

    Effect of Ultrasonic Pre-Treatment and Aeration on

    the flotation of pyrite while the decrease in recovery under alkaline conditions may be related to the formation of iron hydroxide species or lack of dixanthogen on the surface. As shown in Fig. 3(b) flotation behaviour of the mixture of chalcopyrite and pyrite is to some extent

    Get Price