nash effect on the flotation of copper sulphides

nash effect on the flotation of copper sulphides

  • Role of starch and metabisulphite on pure pyrite and pyritic copper .

    Depression of pyrite is very important in sulphide ore flotation. .. also recorded and the change in potential shows that pulp potential decreased as NaSH . bisulphite is required than starch but metabisulphite is more effective as a depressant. 3.2. Pyritic copper ore. 3.2.1. Effect of starch. First, flotation was carried out with.

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  • sart process testwork and design Ausenco

    The sulfide ore is treated through a flotation circuit to produce pyrite and copper concentrates. The pyrite concentrate is treated in the CIL. Copper concentrate is ... Effect of NaSH Addition on the SART Process. Feed Copper. Grade mg/l. NaSH. Addition. % Stoich. Neutralised Effluent. Copper. Recovery %. Cyanide Conc.

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  • GREAT MINES Zambia InfoMine

    treated through flotation, with the mixed and sulphide ore float tailings being thickened and discharged to the tailings storage facilities, and the oxide float tailings being leached, followed by solid liquid separation in a CCD circuit. Copper recovery from solution is by clarification and conventional SX and EW. Kansanshi thus.

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  • Flotation of mixed copper oxide and sulphide minerals . Axis House

    copper sulphides present in the blend were bornite and chalcopyrite, while the oxides were malachite and minor azurite. From previous flotation investigations of mixed copper oxide and sulphide minerals using xanthate and hydroxamate collectors it was hard to distinguish the impact of the alkyl hydroxamate collector on.

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  • Okontrollerad skumning i molybdenflotation: Studier och lösningar

    flotation process could be assumed to contain mostly copper concentrate, process water, thio anions and residuals of KAX . the three factors temperature, water quality and amount of depressant (NaSH) was set at low and high levels . within the same UV absorbance range as the much larger sulphide ion peak. Activated.

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  • Improving fine copper and gold flotation recovery: a plant evaluation .

    Nov 12, 2013 . While the sulphide copper minerals chalcopyrite and bornite are known to be paramagnetic; gold is not paramagnetic. Gold's response to ... Since magnetic aggregation only affects the recovery of fine mineral, the flotation performance of the fine mineral was determined separately from the coarse mineral.

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  • Froth Flotation Department of Chemical Engineering

    will produce compensating effects in other areas (Klimpel, 1995) . (e) Enrichment Ratio. Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product. % Weight. % Cu Assay. Feed. 100. 2.09 ... for sulfide minerals being floated with xanthate, but does not affect flotation when sulfide minerals.

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  • Sodium hydrosulfide Wikipedia

    Sodium hydrosulfide is the chemical compound with the formula NaHS. This compound is the product of the half neutralization of hydrogen sulfide (H2S) with sodium hydroxide. NaHS is a useful reagent for the synthesis of organic and inorganic sulfur compounds, sometimes as a solid reagent, more often as an aqueous.

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  • Role of starch and metabisuphite on pure pyrite and pyritic copper .

    Mar 12, 2015 . Full text (PDF) . Depression of pyrite is very important in sulphide ore flotation. This paper investigates the role of non toxic depressants on the flotation of pyrite. Starch and meta bisulphite were used as a depressant for pure pyrite sample and a pyritic copper ore at two different pHs values.

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  • Effects of pH and pulp potential on selective separation of .

    selective molybdenite flotation by Na2S/NaSH addition, because. Na2S/NaSH acts as a depressant for copper sulfide in the appropriate pulp potential [7]. It was found that changes in pulp potential as an effective factor resulted in dual effects of Na2S and NaSH on flotation and depression behavior of sulphide minerals.

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  • Flotation of a copper sulphide ore from Okiep . Semantic Scholar

    Flotation of a copper sulphide ore from. Okiep using thiol collectors and their mixtures by G. Hangone*, D. Bradshaw, and Z. Ekmekci. Paper written on project work carried out in partial fulfilment of. MSc thesis. Synopsis. This paper investigates the effects of thiol collectors: xanthates, dithiophosphates, dithiocarbamates.

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  • The Effect of Seaweed Glue in the Separation of Copper . MDPI

    Jan 25, 2018 . The Effect of Seaweed Glue in the Separation of. CopperMolybdenum Sulphide Ore by Flotation. Zhixiang Chen 1, Guohua Gu 1,*, Shuangke Li 1,*, Chongqing Wang 2 and Renfeng Zhu 1,3. 1. School of Minerals Processing and Bio Engineering, Central South University, Changsha 410083, China;.

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  • Cytec Solutions

    partial NaSH replacement and we are seeing strong interest in all of these products. We have . Use of AEROPHINE® 3418A Promoter for Sulfide Minerals Flotation . ... The Impact of PLS Viscosity on Solvent Extraction. 8. Figure 1. Impurities Balance Scheme. Heap. PLS Pond. EW. SX. Raffinate. Pond. Copper Cathode.

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  • Mining reagents Aluminium and Chemical Resources

    Through our association with CALDIC, we are now also able to supply a range of flotation frothers (MIBC, Poly glycols) and defoaming agents (glycol or ethyl based). In addition, we are able to offer CMC Depressants, Sodium Hydrogen Sulphide liquid concentrates (NaSH) essentially used as Copper Sulphidizing agent or.

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  • Role of starch and metabisulphite on pure pyrite and pyritic copper .

    Depression of pyrite is very important in sulphide ore flotation. .. also recorded and the change in potential shows that pulp potential decreased as NaSH . bisulphite is required than starch but metabisulphite is more effective as a depressant. 3.2. Pyritic copper ore. 3.2.1. Effect of starch. First, flotation was carried out with.

    Live Chat
  • Recovery of cobalt and copper through reprocessing of tailings from .

    Dec 27, 2017 . Full text (PDF) . In the Katanga province of the Democratic Republic of Congo (DRC), effluents from flotation of oxidised ores of copper and cobalt are stored in settling ponds in . activation or the formation of a metal sulphide or elementary ... depressing effect from the excess NaSH introduced in the pulp.

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  • Flotation of mixed copper oxide and sulphide minerals . Axis House

    copper sulphides present in the blend were bornite and chalcopyrite, while the oxides were malachite and minor azurite. From previous flotation investigations of mixed copper oxide and sulphide minerals using xanthate and hydroxamate collectors it was hard to distinguish the impact of the alkyl hydroxamate collector on.

    Live Chat
  • Flotation of a copper sulphide ore from Okiep . Semantic Scholar

    Flotation of a copper sulphide ore from. Okiep using thiol collectors and their mixtures by G. Hangone*, D. Bradshaw, and Z. Ekmekci. Paper written on project work carried out in partial fulfilment of. MSc thesis. Synopsis. This paper investigates the effects of thiol collectors: xanthates, dithiophosphates, dithiocarbamates.

    Live Chat
  • Flotation using NaHS Sodium Hydrosulfide Froth Flotation .

    I work in the gold mine mill were we extract gold and silver from both oxide, sulphate and transitional ore at mill rate of 680 t/h, just now we introduce NaSH replacing copper at flotation other reagent in place froth, promoter, PAX. What will be the best recommended dosing rate for the NaSH for.

    Live Chat
  • Froth Flotation Department of Chemical Engineering

    will produce compensating effects in other areas (Klimpel, 1995) . (e) Enrichment Ratio. Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product. % Weight. % Cu Assay. Feed. 100. 2.09 ... for sulfide minerals being floated with xanthate, but does not affect flotation when sulfide minerals.

    Live Chat
  • Cyanide Management by SART

    Telfer Gold Mine treats both gold/copper oxide and sulfide ores in a remote location in the Great Sandy Desert,. Western .. concentrate from the sulfide flotation plant. . The effects of pH and NaSH addition on cyanide and copper recovery were also examined. A summary of the findings of this testwork is presented below:.

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  • Recovery of cobalt and copper through reprocessing of tailings from .

    Dec 27, 2017 . Full text (PDF) . In the Katanga province of the Democratic Republic of Congo (DRC), effluents from flotation of oxidised ores of copper and cobalt are stored in settling ponds in . activation or the formation of a metal sulphide or elementary ... depressing effect from the excess NaSH introduced in the pulp.

    Live Chat
  • Laboratory Evaluation of the Flotation Response of a Copper . waset

    determine the effect of two types of gasoil rinkalore mixtures on the . should be noted that copper cobalt oxide ores do not generally . used: sodium sulhydrate (NaSH) as the activator and sodium silicate (Na2SiO3) as the dispersant. The flotation reagent compositions and laboratory operating conditions are specified.

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  • Okontrollerad skumning i molybdenflotation: Studier och lösningar

    flotation process could be assumed to contain mostly copper concentrate, process water, thio anions and residuals of KAX . the three factors temperature, water quality and amount of depressant (NaSH) was set at low and high levels . within the same UV absorbance range as the much larger sulphide ion peak. Activated.

    Live Chat
  • Role of starch and metabisuphite on pure pyrite and pyritic copper .

    Mar 12, 2015 . Full text (PDF) . Depression of pyrite is very important in sulphide ore flotation. This paper investigates the role of non toxic depressants on the flotation of pyrite. Starch and meta bisulphite were used as a depressant for pure pyrite sample and a pyritic copper ore at two different pHs values.

    Live Chat
  • Cyanide Management by SART

    Telfer Gold Mine treats both gold/copper oxide and sulfide ores in a remote location in the Great Sandy Desert,. Western .. concentrate from the sulfide flotation plant. . The effects of pH and NaSH addition on cyanide and copper recovery were also examined. A summary of the findings of this testwork is presented below:.

    Live Chat
  • Flotation of a copper sulphide ore from Okiep . Semantic Scholar

    Flotation of a copper sulphide ore from. Okiep using thiol collectors and their mixtures by G. Hangone*, D. Bradshaw, and Z. Ekmekci. Paper written on project work carried out in partial fulfilment of. MSc thesis. Synopsis. This paper investigates the effects of thiol collectors: xanthates, dithiophosphates, dithiocarbamates.

    Live Chat
  • Improving fine copper and gold flotation recovery: a plant evaluation .

    Nov 12, 2013 . While the sulphide copper minerals chalcopyrite and bornite are known to be paramagnetic; gold is not paramagnetic. Gold's response to ... Since magnetic aggregation only affects the recovery of fine mineral, the flotation performance of the fine mineral was determined separately from the coarse mineral.

    Live Chat
  • Flotation using NaHS Sodium Hydrosulfide Froth Flotation .

    I work in the gold mine mill were we extract gold and silver from both oxide, sulphate and transitional ore at mill rate of 680 t/h, just now we introduce NaSH replacing copper at flotation other reagent in place froth, promoter, PAX. What will be the best recommended dosing rate for the NaSH for.

    Live Chat
  • English (pdf) SciELO SA

    final metal products of sufficient purity and in a suitable commercial form to meet customer specifications. Historically for metals like copper, nickel, zinc and lead recovery from sulphide deposits, processing has included mining, flotation of concentrates and finally smelting/refining of the concentrates through to final products.

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