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NICKEL AND COBALT ORES FLOTATION

Developments in Flotation Flotation of Nickel Sul\de Minerals Collectorless Wotation It is known that chalcopyrite and pyrrhotite can be Soated without collectors at electrode potentials of 400 mV and 50 mV respectively, and pyrite does not Soat even at 700 mV The underlying mechanism causing hy-drophobicity, although obscure, is attributed ....

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Collectorless flotation of chalcopyrite and sphalerite ,

01-03-1981 0183 32 The flotation of chalcopyrite and sphalerite from copper and copper-zinc ores has been achieved without using thiol-type collectors Typically, a sulfide ore sample is first treated with sodium sulfide either during grinding or during the preflotation conditioning period, and then the chalcopyrite is floated with frother alone...

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Improving the flotation separation of chalcopyrite from ,

01-01-2022 0183 32 A method of air oxidation pretreatment at 170 176 C was developed for the selective separation of chalcopyrite and galena Single mineral and artificially mixed mineral flotation experiments indicated that the hydrophobicity of chalcopyrite was greatly reduced, and galena maintained outstanding floatability after pretreatment by high-temperature air oxidation...

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Flotation separation of chalcopyrite from galena using ,

15-01-2022 0183 32 In a typical single mineral flotation test, the chalcopyrite or galena sample 20 g and DI 40 mL were added to the flotation tank, the pH of the suspension was adjusted by H 2 SO 4 and NaOH, and the mixture was stirred for 2 min Afterward, LBG was added and stirred for 3 min to ensure full interaction with the mineral sample...

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A STUDY OF FLOTATION AND LEACHING BEHAVIOUR OF BORNITE ,

17-03-2011 0183 32 Collectorless flotation of chalcopyrite observed under oxidizing conditions using air is thought to be prevalent even in the presence of a collector obscuring the selectivity of the process Leaching of the mixtures of bornite and chalcopyrite at mass ,...

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Copper Sulfide Flotation

13-04-2016 0183 32 Flowsheet for treatment of Copper Sulfide ores rich inminerals such as chalcopyrite with gold and silver as well as arsenopyrite The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver valu The ore, ranging from 60-65 silica, with pyrite, arsenopyrite, and calcite with 3 to 4 copper...

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Enhancing flotation separation of chalcopyrite and ,

18-03-2021 0183 32 Separation effects of sodium polyacrylate PAAS and gum Arabic GA on flotation of chalcopyrite and magnesium silicate minerals using potassium butyl xanthate PBX as collector were ....

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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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Chalcopyrite Flotation without Collector

04-10-2018 0183 32 It has been reported that chalcopyrite can be floated selectively from an ore containing pyrite, sphalerite, and silicious gangue minerals without using a collector Sodium sulfide was used as a promoter, presumably to clean the chalcopyrite surface of its hydrophilic oxidation products...

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Chalcopyrite Cu Sphalerite Zn Separation by Flotation

14-04-2016 0183 32 Xanthate Z-11 or reagent Z-200 is added to the conditioner to promote the chalcopyrite and float it in the Sub-A circuit as shown Note that a scavenger or middling product is taken at the end of the circuit and returned to the regrind section for further grinding...

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PDF A Review of the Flotation of Copper Minerals

The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 05 TCu open pit mines and 1-2 TCu underground mines is of ,...

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FLOTATION AND ADSORPTION STUDIES OF CHALCOPYRITE ,

The chalcopyrite sample used in all the experiments was obtained from Chitradurga Copper Mines Karnataka, India It was subjected to a series of concentration procedures such as froth flotation, heavy media separation and isodynamic separation and only the -72 100 BSSmesh portion from dry screening was selected...

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Characterization and Flotation of Sulfur from Chalcopyrite ,

flotation tailings and can be readily recovered by flotation with different flotation reagents When amyl xanthate is used, 85 of chalcopyrite can be recovered with a copper grade of 145 in a single-stage froth flotation The chalcopyrite flotation concentrate can be sent back to chloride leaching circuits...

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Chalcopyrite Cu Sphalerite Zn Separation by Flotation

14-04-2016 0183 32 REGRIND AND SELECTIVE FLOTATION The bulk copper-zinc concentrate after thickening is reground to all minus 325 mesh Even at this grind microscopic examination shows inclusions of chalcopyrite in sphalerite grains Zinc sulphate and cyanide are added to the regrind mill to effectively depress the sphalerite...

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Effect of Ultrasonic Pre

on Flotation Separation of Chalcopyrite from Pyrite Taheri, Bijan University of Kashan, Kashan, IR IRAN Lotfalian, Majid Graduate University of Advanced Technology, Kerman, IR IRAN ABSTRACT In this paper, the effect of ultrasonic pre ,...

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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 ,...

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Recover Ultrafine Chalcopyrite by Flotation

03-04-2018 0183 32 Recover Ultrafine Chalcopyrite by Flotation Previous Next Table of Contents Froth flotation is used almost universally in the beneficiation of base metal sulfide or Although flotation is very efficient for particles between 150 and 10 181 m in size, this efficiency drops off rapidly, as the particle sizes drop below 10 181 m...

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Effect of dextrin on flotation separation and surface ,

27-11-2020 0183 32 The micro-flotation test showed that dextrin had obvious inhibitory effect on arsenopyrite flotation, but had no inhibitory effect on chalcopyrite flotation After treating the surface of arsenopyrite with dextrin, the infrared spectra showed that new characteristic peaks, indicating that chemical adsorption and significant interaction between dextrin and ,...

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Effect of Sodium Metabisulfite on Selective Flotation of ,

07-12-2021 0183 32 Sodium metabisulfite MBS was used in this study for selective flotation of chalcopyrite and molybdenite Microflotation tests of single and mixed minerals were performed to assess the floatability of chalcopyrite and molybdenite The results of microflotation of single minerals showed that MBS treatment significantly depressed the floatability of chalcopyrite ,...

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Enhancing flotation separation of chalcopyrite and ,

18-03-2021 0183 32 Separation effects of sodium polyacrylate PAAS and gum Arabic GA on flotation of chalcopyrite and magnesium silicate minerals using potassium butyl xanthate PBX as collector were investigated....

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Mining Industry Copper Sulfide Ore and Flotation Process ,

09-07-2019 0183 32 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 a wide pH range 3 to 12...

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Flotation of chalcopyrite, pentlandite, pyrrhotite ores ,

01-11-1991 0183 32 FLOTATION OF CHALCOPYRITE, PENTLANDITE, PYRRHOTITE ORES TABLE 1 Approximate ore compositions Sudbury Thompson Shebandowan Pentlandite 30 71 50 Chalcopyrite 37 05 2 Pyrrhotite 20 23 20 Quartz 16 28 6 Feldspar 14 24 7 Chlorite 21 - 25 Biotite 11 7 - Amphibole 10 6 < 5 Carbonates 2 < 5 10 Tremolite - - 15 Talc - - 4 SUDBURY ,...

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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 test material was ore from HuiLi Lead-Zine Mine...

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Analysis of kinetic models for chalcopyrite flotation ,

23-12-2018 0183 32 of kinetic models for chalcopyrite flotation effect of operating parameters, Geosystem Engineering, DOI 101080/1226932820181560367 To link to this article https //doior g/101080/12269328 ....

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