chalcopyrite flotation chalcopyrite

chalcopyrite flotation chalcopyrite

Effect of Sodium Metabisulfite on Selective Flotation of ...

2021-12-7 · 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 and

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Flotation separation of molybdenite from chalcopyrite ...

The flotation results indicated that L-cysteine exhibited stronger depressing ability than the conventional chalcopyrite depressants of Na 2 S, NaHS and sodium thioglycolate, suggesting it could become a promising potential depressant in the selective flotation separation of molybdenite from chalcopyrite.

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Enhancing flotation separation of chalcopyrite and ...

2021-3-18 · Figure 3 showed the effect of PAAS dosage on the flotation behavior of chalcopyrite, serpentine and talc. The experiment was carried out at

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Influence of galvanic interaction between chalcopyrite and ...

Chalcopyrite is often associated with galena in nature, which brings great difficulties to the flotation recovery of chalcopyrite. One of the main reasons for these difficulties is that galvanic interaction between chalcopyrite and galena has a significant effect on the oxidation and flotation behavior of chalcopyrite.

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The depression behavior and mechanism of tragacanth

2021-8-1 · In contrast, as TG dosage increased, chalcopyrite flotation recovery decreased gradually and it was less than 20% when 100 mg/L TG was added. Therefore, TG was a potential effective depressant to realize the molybdenite-chalcopyrite flotation separation. Download : Download high-res image (140KB) Download : Download full-size image; Fig. 6.

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Improving the flotation separation of chalcopyrite from ...

2022-1-1 · A method of air oxidation pretreatment at 170 °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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Chalcopyrite Flotation without Collector - Surface Chemistry

2018-10-4 · Chalcopyrite Flotation without Collector – Surface Chemistry. It has been reported that chalcopyrite can be floated selectively from an ore

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Recover Ultrafine Chalcopyrite by Flotation

2018-4-3 · Flotation of ultrafine chalcopyrite can be improved by processing the ore with (1) split-circuit design and (2) intense agitation conditioning before flotation.

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Effect of organic depressant lignosulfonate calcium on ...

The flotation tests of single mineral show that LSC can depress the flotation of pyrite in a certain pH range,but it has little effect on chalcopyrite flotation. Flotation separation of a mixture of chalcopyrite and pyrite can be completed to obtain a copper concentrate grade up to 24.73% with a recovery of 80.36%.

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Characterization and Flotation of Sulfur from

2013-12-24 · 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 14.5% in a single-stage froth flotation. The chalcopyrite flotation concentrate can be sent back to chloride leaching circuits.

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Chalcopyrite Flotation without Collector - Surface Chemistry

2018-10-4 · Chalcopyrite Flotation without Collector – Surface Chemistry. It has been reported that chalcopyrite can be floated selectively from an ore containing pyrite, sphalerite, and silicious gangue minerals without using a collector.

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Enhancing flotation separation of chalcopyrite and ...

2021-3-18 · Figure 3 showed the effect of PAAS dosage on the flotation behavior of chalcopyrite, serpentine and talc. The experiment was carried out at

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Recover Ultrafine Chalcopyrite by Flotation

2018-4-3 · Flotation of ultrafine chalcopyrite can be improved by processing the ore with (1) split-circuit design and (2) intense agitation conditioning before flotation. At equivalent or even lower collector consumption, a split circuit flotation design,

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Frontiers | Effect of Grinding Media on Grinding-Flotation ...

Grinding media have significant influence on the flotation of chalcopyrite and pyrite. This effect is mainly related to the change in the surface properties of chalcopyrite and pyrite. This paper investigates the influence of steel ball and nano-ceramic ball grinding on the floatability of chalcopyrite and pyrite. Flotation results, as well-scanning electron microscopy (SEM), X-ray ...

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Effect of dextrin on flotation separation and surface ...

2020-11-27 · The flotation recovery of chalcopyrite and arsenopyrite in concentrate and tailings after flotation of mixed minerals are shown in Table 2. It can be seen from Table 2 that the flotation recovery of chalcopyrite in concentrate products is about 71%, while the flotation recovery of arsenopyrite is less than 29%. Compared with the results of ...

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Sodium Metabisulfite on Selective Flotation of ...

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 and slightly reduced

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Effect of organic depressant lignosulfonate calcium on ...

The flotation tests of single mineral show that LSC can depress the flotation of pyrite in a certain pH range,but it has little effect on chalcopyrite flotation. Flotation separation of a mixture of chalcopyrite and pyrite can be completed to obtain a copper concentrate grade up to 24.73% with a recovery of 80.36%.

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Characterization and Flotation of Sulfur from Chalcopyrite ...

2017-5-10 · The upgraded flotation concentrate f Vo1. 2, No.1 Characterization and Flotation of Sulfur from Chalcopyrite Concentrate Leaching 3 can serve as the feed for the above-mentioned or similar processes to produce selenium- and tellurium

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Separation mechanism of chalcopyrite and pyrite due to ...

2022-1-12 · The effects of H2O2 on the flotation separation of chalcopyrite and pyrite in seawater were investigated. Pyrite was more significantly oxidized by 0.05 vol% H2O2 in seawater at pH 8, as compared to that of chalcopyrite. Under optimized condition, a ...

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Flotation separation of chalcopyrite from talc using ...

2017-5-26 · Keywords: talc, chalcopyrite, flotation, separation, carboxymethyl chitosan Introduction Talc is a common gangue of copper-nickel sulfide ores around the world. Talc easily floats into a concentrate because of its surface hydrophobicity (Shortridge et al., 2000; Beattie et al., 2006). The Dongguashan copper mine is located in Tongling city, China.

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Effect of dextrin on flotation separation and surface ...

2020-11-27 · The flotation recovery of chalcopyrite and arsenopyrite in concentrate and tailings after flotation of mixed minerals are shown in Table 2. It can be seen from Table 2 that the flotation recovery of chalcopyrite in concentrate products is about 71%, while the flotation recovery of arsenopyrite is less than 29%. Compared with the results of ...

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(PDF) A Study of Temperature Effect on the Xanthate’s ...

2020-5-10 · adsorption on chalcopyrite surface and, the refore, chalcopyrite flotation. The te sted temperatures are specifically selected from 25 °C to 65 °C becaus e of the potential h igh temperature ...

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A STUDY OF FLOTATION AND LEACHING BEHAVIOUR

2011-3-17 · 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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Effects of Sodium Alginate on the Flotation Separation of ...

In this paper, the effect of sodium alginate (SA) on the flotation separation of molybdenite (MoS 2) from chalcopyrite using kerosene as collector was systematically investigated.The results of single-mineral micro-flotation tests indicated that SA exhibited strong depression on chalcopyrite flotation while it imposed no impact on the floatability of molybdenite.

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Activation-flotation kinetics of depressed marmatite and ...

2016-8-1 · Within the range investigated, the highest flotation performances of depressed marmatite and depressed chalcopyrite were obtained at 2.5 mL/L sodium hypochlorite with zinc recovery rate of 93.8 percent and 3 mL/L sodium hypochlorite with copper recovery rate of 94.6 percent, respectively, after four minutes of flotation.

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Investigation of Flotation Parameters for Copper Recovery ...

A flotation pre-treatment study for the separation of enargite (Cu 3 AsS 4) from chalcopyrite (CuFeS 2) ores of different origins was investigated in this work.The copper ore bearing enargite mineral contained 5.87 mass% As and 16.50 mass% Cu while the chalcopyrite bearing ore contained 0.32 mass% As and 21.63 mass% Cu.

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Structural Modification of Xanthate Collectors To

2021-1-15 · 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,

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Electrochemical and spectroscopic study of interfacial ...

2016-1-31 · Comparative voltammetry and differential double-layer capacitance studies were performed to evaluate interfacial interactions between chalcopyrite (CuFeS 2) and n-isopropyl xanthate (X) in the presence of ammonium bisulfite/39wt% SO 2 and caustic starch at different pH values. Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, contact angle

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武汉理工大学资源与环境工程学院欢迎您

2019-5-17 · Improved understanding of chalcopyrite flotation in seawater using sodium hexametaphosphate. Minerals Engineering, 2019, 134, 269-274. Q1 2.707. 2. Yubiao Li*, Hongduo Wang, Wanqing Li, Clement Lartey, Shaoxian Song. A

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