آخرین محصولات
The galena flotation in function of grindability | SpringerLink
This paper presents the results of industrial research of influence of grinding fineness on the results of galena mineral flotation from the ore of the mine "Rudnik."
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Dual effects of sodium sulfide on the flotation behavior of
This study explores the flotation behavior of chalcopyrite in the presence of different concentrations of sodium sulfide (Na 2 S·9H 2 O) 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, …
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Selective flotation separation of galena from
Galena (PbS) and sphalerite (ZnS) are the main sources of lead and zinc and usually associated in sulfide deposits. Because of the similar surface properties of these …
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Study on the Effect and Mechanism of Pulp Temperature on Galena Flotation
The effct of pulp temperature change on galena flotation was studied though the single mineral flotation test with butyl xanthate (NaBX) as the collector and 4-Methyl-2-pentanol (MIBC) as the frother. Meanwhile, the effect mechanisms of pulp temperature change on recovery were investigated by infrared spectrum, Zeta potential, …
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Investigations on the selective depression of fenugreek gum …
Artificial mixed minerals flotation results further proved that FG could selectively depress galena flotation, ... Fig. 3 exhibits the influence of FG concentration on the flotation recoveries of chalcopyrite and galena at pH 8.5, where the sulfide flotation was normally performed (C. Liu et al., 2019). Besides, a typical organic depressant for ...
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Study on the Effect and Mechanism of Pulp Temperature on …
The results indicated that pulp temperature had a significant influence on the recovery of galena flotation, and the recovery at 5 ℃ decreased by 7 percentage …
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Effect of Chain Structure of Xanthate on Galena Flotation
In this regard, the influences of length (2-5 carbon) and structure (straight: normal and branched: iso) of xanthate's hydrocarbon chain on flotation recovery of galena were investigated under ...
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A review of the effect of water quality on flotation
Recycling of process water in sulphide flotation: effect of calcium and sulphate ions on flotation of galena. Miner. Eng. (2012) H. Jenkins et al. ... The stability of the froth is known to strongly affect flotation performance. Literature shows that both frothers and ions reduce bubble coalescence, and stabilise the bubbles that form ...
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Effect of iron contamination from grinding media on the flotation of
Research Highlights In flotation, fine galena and chalcopyrite are affected by iron oxidation species emanating from grinding media to a much greater extent than intermediate size fractions. Grinding conditions have a more pronounced effect on fine galena flotation than fine chalcopyrite flotation. Fine particles are more easily oxidised …
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Influence of galvanic interaction between chalcopyrite …
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 …
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Control of grinding conditions in the flotation of galena …
Aeration during grinding interfered with oxygen reduction occurring on the mineral acting as the cathode, as a result of galvanic interaction, and influenced the …
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Flotation and surface modification characteristics of galena
The flotation tests and XPS analyses on galena, sphalerite and pyrite have been carried out in a collecting-depressing-reactivating system (hereafter referred as the CDR system). In this system, sulfide minerals were first collected and activated by the collector, and then depressed strongly by Ca(OH)2 in the strong alkaline solution, and …
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Effects of pyrite on the flotation behavior and electrochemical
The flotation recovery of galena decreases while that of pyrite increases when two minerals are mixed together due to the influence of galvanic interaction on the formation of hydrophilic ...
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The influence of galvanic interaction on the
However, the influence on the flotation of each mineral is still debatable (Qin et al., 2015b, Trahar et al., 1994), similar to the cases of galvanic couples composed of other sulfide minerals. In addition, the effect of galvanic interaction between pyrite and galena on their dissolution and surface composition in the flotation system has not ...
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A review on the electrochemistry of galena flotation
This study provides a comprehensive review of the influence of electrochemical conditions on galena surface chemistry and electrochemical processes in the flotation system. The electrochemical flotation behavior of galena and its …
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Effect of galvanic contact on the flotability of galena in the …
In this paper, the effect of various electrochemical environments in the galena flotation is investigated. The electrochemical environments consisted of a ball mill for grinding of galena ore and a Denver flotation cell for flotation of galena in the laboratory scale. In order to achieve the maximum recovery with sodium hyposulfite, the …
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Study of the Collectorless Flotation Behavior of Galena in
It is observed that in the absence of collector and Fe 3+ metal ions at pH 10, the maximum cumulative flotation of galena was 59% w/w. The presence of only 5 mg/L of Fe 3+ depresses flotation, having a cumulative flotation percentage of 54% w/w. Increasing the Fe 3+ concentration to 25 mg/L further depresses the collectorless …
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Flotation recovery of chalcopyrite and galena as a …
The influence of humic acid on the flotation of galena under different redox conditions was studied based on micro-flotation experiment. The results showed that the humic acid was an effective ...
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The galena flotation in function of grindability
This paper presents the results of industrial research of influence of grinding fineness on the results of galena mineral flotation from the ore of the mine "Rudnik."
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The influence of galvanic interaction on the
XPS analysis verified that the galvanic interaction enhanced the galena oxidation, leading to an increase in oxysulfide/hydroxide components on its surface. …
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Studies of Grinding Media Corrosion from Galvanic Interaction on Galena
Effect of Grinding Media on Galena Flotation 3.1.1. Galena Flotation The influence of five types of grinding media (mild steel, 10% chromium, 20% chromium, cast iron and ceramic media) on galena flotation behavior (purged with air) is shown in Figure 1. It can be seen that ceramic grinding medium produced maximum galena recovery and mild steel ...
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Investigations on the depressant effect of sodium alginate on galena
It can be seen that the pulp pH has certain influence on the galena flotation in the presence of both SA and collector. In the SA + BX system, galena kept good flotability across the whole pH range tested, showing that SA could not depress the galena flotation at any pH. In the SA + DACE system, the depressant effect of SA towards galena ...
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Surface modification mechanism of galena with H2SO4 and
The influence of humic acid on the flotation of galena under different redox conditions was studied based on micro-flotation experiment. The results showed that the humic acid was an effective ...
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Investigating fine galena recovery problems in the lead circuit of
For example, Cullinan et al. (1999) reported that the grinding media type had a large influence on the flotation of fine galena particles (−10 μm). Show abstract. In the processing of minerals, the ore is ground to small particles to liberate the valuable minerals which are then separated from the ore waste material by froth flotation. The ...
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Effect of pre-oxidation on galena in the flotation separation of
The influence of humic acid on the flotation of galena under different redox conditions was studied based on micro-flotation experiment. The results showed that the humic acid was an effective ...
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A review on the electrochemistry of galena flotation
The flotation results showed that BDT had good flotation selectivity for chalcopyrite and galena, which achieved up to 96.67% and 50.26%, respectively, at pH 6 using a collector dosage of 100 g/t.
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Surface proximity effect of galena and its influence on synergistic
The atoms on the galena (1 0 0) surface will rearrange. Conclusion. The proximity effect induced by the adsorption of butyl xanthate on the galena (1 0 0) surface and its influence with other butyl xanthate and methyl xanthate have been investigated based on DFT method, and the conclusion can be summarized as followings: 1.
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Influence of water resources and metal ions on galena …
such as galena, silver and copper, must be selectively removed from the main valuable mineral sphalerite and water quality could influence this selectivity. A typical composition of the ore is shown in Table I. During flotation of sulphides at Rosh Pinah plant, various factors can influence the performance of the flotation plant.
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(PDF) Improving separation efficiency of galena flotation using the
A flotation device named Aerated Jet Flotation Cell (AJFC) was adopted to improve the separation efficiency of galena flotation. Reducing bubble size and optimizing turbulence distribution were ...
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Studi pengaruh variasi pH pada proses flotasi bijih galena
T The process of concentration based on flotation can increase the levels ofgalena ore which has a low galena content of 2-8%. With this research usinggalena ore from Purwakarta, West Java, can increase the content of galena. Theresults of this study use a flotation device with a floating process or released as aconcentrate of valuable minerals …
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