flotation copper collectorless

flotation copper collectorless

A potential application of collectorless flotation in a ...

Request PDF | A potential application of collectorless flotation in a copper/gold operation | A recent study found that chalcopyrite in the Telfer ore could float without a collector whilst pyrite ...

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Depressing mechanisms of sodium bisulphite in the ...

2005-4-4 · The effect of sodium bisulphite on the collectorless flotation of copper-activated sphalerite has been studied at pH 9 with nitrogen purging. X-ray photoelectron spectroscopy (XPS), time of flight secondary ion mass spectroscopy (ToF-SIMS) and ion chromatography (IC) have been used to identify a mechanism of interaction of sulphite ions with sphalerite particles.

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INFLUENCE OF FROTHER TYPE AND DOSE ON

2015-5-6 · Influence of frother type and dose on collectorless flotation of copper-bearing shale 549 minutes and after this time only the aqueous solution of frother was pumped to the column. In each flotation tests the feed and aqueous solution flow rates were controlled 3by a peristaltic pump. The feed flow rate was 18 dm /h and the aqueous

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Depressing mechanisms of sodium bisulphite in the ...

The effect of sodium bisulphite on the collectorless flotation of copper-activated sphalerite has been studied at pH 9 with nitrogen purging. X-ray photoelectron spectroscopy (XPS), time of flight secondary ion mass spectroscopy (ToF-SIMS) and ion chromatography (IC) have been used to identify a mechanism of interaction of sulphite ions with sphalerite particles.

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A potential application of collectorless flotation in a ...

2010-10-1 · Leroux et al. (1989) trialled collectorless flotation in a complex sulphide ore plant and found that chalcopyrite was preferentially recovered in the absence of a collector. It was also confirmed that an oxidising atmosphere was essential for collectorless flotation. Collectorless flotation was promoted when the pulp potentials were greater than about 0 mV (SCE).

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Effect of surface oxide/hydroxide products on the ...

The change in collectorless flotation of sphalerite with pH and Cu(II) concentration was correlated with the type and proportion of species present on the sphalerite surface. The solution and surface species were determined using a combination of analytical techniques including zeta potential measurement and X-ray photoelectron spectroscopy.

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COLLECTORLESS FLOTATION OF SULPHIDE MINERALS ...

The plant-scale collectorless flotation of copper sulfide ore was carried out in 1989.The grade and recovery of copper concentrate were similar to those of collector-induced flotation.The collectorless flotation(CLF)is divided into three types according to mineral structures ...

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The effect of water quality on the collectorless flotation ...

2012-6-6 · Water quality had no effect on the collectorless flotation of chalcopyrite which was very strong, in excess of 96% copper recovery, but all three lower quality waters had a detrimental effect on the recovery of bornite compared to that obtained in distilled water. The depressant effect was so strong that the little recovery achieved in these ...

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AN INVESTIGATION OF COPPER RECOVERY FROM A

2010-1-19 · The flotation of a natural porphyry copper ore with bornite and malachite was investigated via fundamental work with pure minerals and a bench-scale testing regime. The ... Figure 4.12 : Comparison between collectorless bornite flotation and flotation with PAX,

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硫化铜矿石的无捕收剂浮选 - 中南大学学报(自然科学版 ...

Abstract: In this work,the flotation of copper sulfide ores is achieved without using collectors.The resultsof the collectorless flotation tests are comparable to those obtained by sing thiol collectors.The gradeof the Cu concentrate obtained in the laboratory close-circuit ests is 26.15% Cu with a recovery of95.3%,where a disseminated copper ore containing 1.88% Cu s used.The effects of some ...

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A potential application of collectorless flotation in a ...

Request PDF | A potential application of collectorless flotation in a copper/gold operation | A recent study found that chalcopyrite in the Telfer ore could float without a collector whilst pyrite ...

Read More
Depressing mechanisms of sodium bisulphite in the ...

The effect of sodium bisulphite on the collectorless flotation of copper-activated sphalerite has been studied at pH 9 with nitrogen purging. X-ray photoelectron spectroscopy (XPS), time of flight ...

Read More
Influence of frother type and dose on

Influence of frother type and dose on collectorless flotation of copper-bearing shale in a flotation column Kowalczuk, P. B. , Mroczko, D. , Drzymala, J. Details

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Collectorless flotation of marmatite with pine oil ...

2015-7-15 · I. collectorless flotation, XPS and dissolution study. Int J Miner Process. 1997;50(1–2):1. Google Scholar [21] Fornasiero D, Ralston J. Effect of surface oxide/hydroxide products on the collectorless flotation of copper-activated sphalerite. Int J

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The collectorless flotation of sphalerite

Abstract. The flotation of sphalerite has been demonstrated without the use of collectors. The effect of redox potential, pH, and copper-activation have been investigated in tests using samples of pure mineral. It has been found that in general, collectorless flotation of sphalerite can be accomplished at potentials greater than -200 mV, SHE ...

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Dissolved-Air Flotation of Metal Ions

2007-6-18 · Collectorless Flotation of Copper Ions Experiments were initially conducted with only copper ions in solution; sodium sulfide was used to precipitate a colloidal CuS (artificial covellite). Figure 1 illustrates the results obtained without any additional reagent. Cu removal drops to about 5% in the pH range from 3 to 6; above pH 6 it

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The effect of water quality on the collectorless flotation ...

2012-6-6 · Water quality had no effect on the collectorless flotation of chalcopyrite which was very strong, in excess of 96% copper recovery, but all three lower quality waters had a detrimental effect on the recovery of bornite compared to that obtained in distilled water. The depressant effect was so strong that the little recovery achieved in these ...

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The Sidelight of Chinese Technology on Mineral

2017-4-12 · 2.1 Collectorless flotation of copper sulphide ore〔4 〕 In our work, the flotation of copper sulfide ores is achieved without using collectors. The results of the collectorless flotation tests are comparable to those obtained by using thiol collectors. The grade of the ...

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硫化铜矿石的无捕收剂浮选 - 中南大学学报(自然科学版 ...

Abstract: In this work,the flotation of copper sulfide ores is achieved without using collectors.The resultsof the collectorless flotation tests are comparable to those obtained by sing thiol collectors.The gradeof the Cu concentrate obtained in the laboratory close-circuit ests is 26.15% Cu with a recovery of95.3%,where a disseminated copper ore containing 1.88% Cu s used.The effects of some ...

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硫化矿浮选电化学(英文版)-中南大学胡岳华教授课题组

2015-4-12 · Chapter 3 Collectorless Flotation in the Presence of Sodium Sulphide 3.1 Description of Behavior 3.2 Nature of Hydrophobic Entity 3.3 Surface Analysis and Sulphur-Extract 3.4 Comparison between Self-Induced and Sodium Sulphide-Induced Collectorless

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Influence of frother type and dose on

Influence of frother type and dose on collectorless flotation of copper-bearing shale in a flotation column Kowalczuk, P. B. , Mroczko, D. , Drzymala, J. Details

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硫化铜矿石的无捕收剂浮选 - 中南大学学报(自然科学版 ...

Abstract: In this work,the flotation of copper sulfide ores is achieved without using collectors.The resultsof the collectorless flotation tests are comparable to those obtained by sing thiol collectors.The gradeof the Cu concentrate obtained in the laboratory close-circuit ests is 26.15% Cu with a recovery of95.3%,where a disseminated copper ore containing 1.88% Cu s used.The effects of some ...

Read More
Collectorless flotation of marmatite with pine oil ...

2015-7-15 · I. collectorless flotation, XPS and dissolution study. Int J Miner Process. 1997;50(1–2):1. Google Scholar [21] Fornasiero D, Ralston J. Effect of surface oxide/hydroxide products on the collectorless flotation of copper-activated sphalerite. Int J

Read More
The effect of water quality on the collectorless flotation ...

2012-6-6 · Water quality had no effect on the collectorless flotation of chalcopyrite which was very strong, in excess of 96% copper recovery, but all three lower quality waters had a detrimental effect on the recovery of bornite compared to that obtained in distilled water. The depressant effect was so strong that the little recovery achieved in these ...

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Superficial Speciation by FTIR Spectroscopy of Floated PbS ...

2021-2-17 · Abstract. The presence of copper aqueous (+2) in the pulps that feed the flotation circuits is due to the oxidation of the copper contained in sulfides (chalcopyrite) and in oxides (malachite) as a result of the galvanic reactions that occur during grinding copper aqueous (+2) can have a negative effect during the collectorless flotation of galena.

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中南大学学报/自然科学版/英文版-官方网站-免费论文下载-作

2010-12-27 · prove the collectorless flotation of the pyrite in the alkaline solutions. It is also called NazS-induced flota- tion. But the collectorless flotation of chalcopyrite was depressed by NazS. The flotation tests of a copper sulphide ore have shown that the collectorless flotation and separation of chalcopyrite and pyrite could be achieved.

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Collectorless flotation - MIM Holdings Limited

The collectorless flotation of chalcopyrite requires that the flotation occurs in a neutral or slightly oxidising environment. Previous studies have shown that freshly fractured flotation of chalcopyrite increased when the redox potential (Eh) was in the neutral or slightly oxidising region.

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JME

2021-9-28 · The collectorless flotation and separation of sulphide minerals by Eh control, International Journal of Mineral Processing, 23: 55-84. [13]. Fornasiero, D., Ralston, J., (2006). Effect of surface oxide/hydroxide products on the collectorless flotation of copper-activated sphalerite, International Journal of

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硫化矿浮选电化学(英文版)-中南大学胡岳华教授课题组

2015-4-12 · Chapter 3 Collectorless Flotation in the Presence of Sodium Sulphide 3.1 Description of Behavior 3.2 Nature of Hydrophobic Entity 3.3 Surface Analysis and Sulphur-Extract 3.4 Comparison between Self-Induced and Sodium Sulphide-Induced Collectorless

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磨矿和浮选过程中黄铁矿电化学行为的研究进展

2020-6-29 · Tao D P, Wang Y, Li L. An electrochemical study of surface oxidation and collectorless flotation of pyrite. Int J Electrochem Sci, 2018, 13(6): 5971 [28] Owusu C, e Abreu S B, Skinner W, et al. The influence of pyrite content on the flotation of chalcopyrite/pyrite

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