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Sulfide Flotation

Sulfide ore flotation is a complex electrochemical system. Electron transfer not only occurs between the sulfide minerals and flotation reagent molecules, but it also happens among different sulfide minerals. Many sulfide minerals are narrow band gap …

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Flotation of an Oxidized Copper Sulfide Ore

Flotation of an Oxidized Copper Sulfide Ore . Ahmed A. Seifelnasr 1, Ghorashi Z. Zain 2, Abdel-Zaher M. Abouzeid *3. 1 Faculty of Petroleum and Mining Engineeri ng, Suez University, Suez, Egypt .

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Heterocyclic Reagents in Flotation of Sulfide Ore: A Review

The flotation of sulfide ores using benzimidazole-2-thione and 5-(butylthio)-1,3,4-thiodiazol-2-thiol was studied in . Both reagents are strong collectors. …

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New insights on the role of seawater in sulfide ore flotation …

In fact, in sulfide ore flotation concentrates, silica is usually the most common impurity. Accordingly, increasing the concentration makes it difficult to reduce the content of silica in the concentrate, indicating that in addition to quartz entrained by and useful minerals in the form of symbiosis in the concentrate, the sulfide mineral ...

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Principles and practice of sulphide mineral flotation

This paper presents both the fundamentals of sulphide mineral flotation and the practical aspects of sulphide ore flotation. The fundamental aspects of the flotation of sulphide minerals both in the absence and presence of thiol collectors are discussed in relation to their crystal structure, surface chemistry and electrochemical characteristics.

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CHAPTER 7 FLOTATION OF SULPHIDE MINERALS

xanthate are involved in chalcopyrite flotation, it would be expected that chalcopyrite is as sensitive to cyanide additions as pyrite is. 3. Sulphide as depressant Very stable cupric sulphide (CuS) will occur due to chemisorption of sulphide ions. Oxidation potential of the solution will be lowered when sulphide ion is added.

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Analysis of Lead-Zinc Sulfide Ore Flotation

This sulfide ore flotation processing plant is high effective to recovery sulfide minerals, suitable for processing Sulfide rock gold, copper, fluorite ore, etc. The plant design can be customized as per rock minerals conditions, capacity can be small,medium and big as per request.

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A Review of the Flotation of Copper Minerals

as the sulphide ore is simpler to recover by conventional flotation procedures and thus, more attractive to the plant operator. Oxi dic ore can be concentrated us ing flotation or, if i t has a ...

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Critical importance of pH and collector type on the flotation …

Selective flotation of sulphide minerals from complex ore is dependent on the several parameters such as: type and dosage of collectors, galvanic interactions and …

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1 Froth Flotation – Fundamental Principles

Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces …

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Recycling of process water in sulphide flotation: Effect of calcium …

The usual procedure in the flotation stage of complex sulphide ore is floating Cu and Pb minerals in the first stage while Zn mineral is floated in the second stage (Liu and Zhang, 2000, Woodcock et al., 2007).

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Lime use and functionality in sulphide mineral flotation: A …

Lime is the most common reagent used in sulphide minerals flotation, and its use in the flotation of the most common ore systems was reviewed in this paper. Lime plays a critical role by influencing collector adsorption on the different minerals, while also controlling dispersion of clays, pulp rheology, settling of particles in the thickeners ...

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Indium pre-enrichment from a Canadian sulphide ore via flotation

Table 1, Table 2 show the existing forms of In and the relative contents of the various minerals in the raw ore, respectively. Table 1 shows that 65% of In was associated with stannite and sphalerite; and 20% and 15% of In occurred as sulphide (roquesite) and hydroxide (dzhalindite), respectively. Moreover, the valuable minerals in the ore mainly …

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Understanding the effect of sulphate in mining-process …

There have been only a few studies on the effects of sulphate addition on the flotation of sulphide ores. For example, sulphate addition (63 mg/L) to a complex sulphide ore showed mixed results on the flotation of the major minerals: Pb recovery increased but Zn recovery decreased while Cu recovery slightly decreased.

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Redox potential control during flotation of a sulphide mineral ore

The ore is treated by bulk sulphide flotation with the aim of maximising the valuable minerals recovery and gangue minerals rejection. A major problem stemming from the existence of PGMs together with BMS is that, a loss of BMS during flotation will be accompanied by a loss of valuable minerals (PGMs) associated with the sulphides …

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Effect of particle size on flotation performance of complex sulphide

Nowadays, particle size is often measured and controlled in flotation concentrators. In this study the dependence of the froth structures on the particle size variation was investigated on the batch flotation of a sulfide ore from the Merensky reef in South Africa, and the size by size recovery curves were studied as well.

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Sulfide Ore

Flotation of sulphide concentrate as described above. Flotation of separate oxide concentrate as described below ... Low grade nickel sulphide ore of Mt Keith is known for its mineralogical diversity and metallurgical complexity. The predominant nickel minerals in this ore are pentlandite, millerite with small amounts of violarite and ...

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Flotation Reagents

In bulk flotation all of the sulphide minerals are collected and floated off together while the gangue remains unaffected and is rejected as tailing. Non- selective promoters serve very well for this purpose. ... and in general for sulphide or metallic minerals .01 to .20 lbs. per ton of ore are required. Flotation of metallic oxides and non ...

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The role of carboxy methyl cellulose in the flotation of a …

This CMC in nickel sulphide transition ore flotation 393 is presumably, at least in part, due to the presence of inorganic salts. Bahr and Rainer [20] found that the addition of inorganic salts promoted the flotation of copper and zinc sulphide fines. In a study on the effects of sodium chloride (mine water) on copper sulphide flotation.

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Efficient flotation recovery of lead and zinc from refractory …

The results indicate that 43.37% Pb and 66.01% Ag were recovered by the flotation of lead sulfide ore, and the average grades of Pb, Zn and Ag in the Pb concentrate were 52.73%, 10.17% and 7562.37 g/t, respectively. Furthermore, total 84.42% Zn was recovered by flotation of zinc sulfide minerals and Zn oxide minerals, and the …

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Electrochemical effects in flotation of a Turkish complex sulphide ore …

Flotation of a complex sulphide ore 1039 The effects of pH on flotation and pulp potential For the experiments where pH was varied Black ore was used in the presence of 80 g/t KAX and 20g/t NaAF and 25 g/t frother (Aerofroth 65). Previous studies on collectors showed that combination of these two collectors improved the recovery …

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Sulfide Minerals Flotation Process

Sulfide Ore Flotation Process Systems. The full sulfide rock minerals processing plant includes 4 systems. 1. Crushing System. Chute feeder is for feeding raw material to primary jaw crusher stably and evenly, can feed 0-300mm stones, if bigger size and capacity, can use grizzly vibration feeder. Then primary jaw crusher crushes the big rock to ...

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The formulation and use of mixed collectors in sulphide flotation

1. Introduction1.1.. ContextIn the practice of sulphide ore milling and flotation, the loss of paymetal(s) to flotation tailings is the largest loss of all unit processes in the flowsheet by which saleable metal is produced (Cramer, 2001).These losses can arise from various sources, ranging from inadequate process conditions to circuit and …

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Flotation of mixed oxide sulphide copper-cobalt minerals …

Bulk flotation experiments with Zambian copper-cobalt sulphide ore showed superior flotation performance, with improved kinetics, when using Sodium Ethyl Xanthate () as a collector instead of a blend of alkyl dithiophosphate and thionocarbamate collectors, with copper sulphides floating more rapidly than cobalt sulphides (Mainza et …

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Influence of grinding method on complex sulphide ore flotation…

International Journal of Mineral Processmg, 38 ( 1993 ) 157-175 157 Elsevaer Science Publishers B V, Amsterdam Influence of grinding method on complex sulphide ore flotation: a pilot plant study K.S. Eric Forssberga, T.V. Subrahmanyamb* and Leif K. Nilssona ~Dzvtston of Mmeral Ppoce~smg, Lulea Untverstt)' of Technology, S-951 87 …

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Sulfide Ore Processing

Sulfide ore beneficiation process is the physical or chemical treatment of sulfide ores, from which valuable sulfide minerals and waste rocks are separated. Non-valuable minerals are removed as much as possible to obtain a high-grade concentrate. In general, the main process of sulfide ore beneficiation is as follows: Flotation Separation

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Sulphide Gold Ore Treatment by Leaching and Flotation Process

Problem with gold recovery from sulphide ore: How may a mill get the maximum recovery of gold from a sulphide ore, at the least capital cost and at the same time obtain the highest net return.This latter point is most important. In many cases a gold mill using an all-cyanide flowsheet with fine grinding of all the ore will report very low …

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Froth Flotation (Sulphide & Oxide)

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN; Use Add New Topic to ask a New Question/Discussion about Flotation.; OR Select a Topic that Interests you.; Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.; …

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Online analysis of minerals from sulfide ore using …

This paper presents the study of Raman spectroscopy for online detection of enriched sulfide ore minerals from froth flotation. The Raman instrument with a custom-made probe connector allowed for the …

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Optimize flotation process of Mo–Bi sulfide ore for cleaner production

Batch flotation tests indicate that the collectorless flotation of Mo–Bi sulfide ore resulted in lower flotation kinetics but higher selectivity than those of the collector flotation process. Industrial-scale tests illustrate that introducing collectorless flotation into the sequential flotation in industrial production was a feasible and ...