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copper pyrite floatation

Copper Flotation   Elmhurst University

Copper Flotation Elmhurst University

The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime simply water and ground up limestone to give a basic pH, pine oil yes,es from trees a by product CuFeS 2 and leave the pyrite FeS 2 alone. Air is blown into the tanks

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2

A study on the effect of active pyrite on flotation of

Abstract: Active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. Misreported pyrite into copper concentrates decreased the grade and recovery of copper. In this study, the effective parameters on the flotation process including grinding condition and chemical parameters were evaluated in order to

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4

Copper Sulphide Ore Reagents For Copper Flotation

Flotation of copper ores.in most plants engaged in the flotation of ores containing copperbearing sulphide minerals with or without pyrite, pine oil is employed as a frother with one of the xanthates or aerofloat reagents orbination of two or more of them as the promoter.inquire now pdf a review of the flotation of copper minerals.

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7

A study on the effect of active pyrite on flotation of

Abstract: Active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. Misreported pyrite into copper concentrates decreased the grade and recovery of copper. In this study, the effective parameters on the flotation process including grinding condition and chemical parameters were evaluated in order to

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8

Pyrite Flotation Froth Flotation Sulphide Oxide

Can you list the factors affects the floatability of pyrite from refractory low grade ore.I used a Wemco lab flotation cell and aimed on analysing factors like collector dosages PAX, Activator Copper sulphate,MIBC , pH and others like pulp density and particle size 70 and 150 microns .However

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10

Copper and Pyrite Separation by Selective and Sequential

The Problem with copper pyrite ores This flowsheet, is designed for the treatment of a copper iron sulfide ore containing appreciable values in gold. The major portion of the gold is associated with the copper but the pyrite contains appreciable gold values also. The demand for pyrite for sulphuric acid also gives added incentive for the recovery of the pyrite

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13

Influence of pyrite content on the flotation of

In the flotation of copper ores several processing plants report that copper recovery is affected by the proportion and type of pyrite in the ore, with the effectg more intense when the feed ore particles are fine, i.e. in fine regrinding. In this work, a model mix mineral system consisting of chalcopyrite and pyrite with varying pyrite content in the range 20 80 wt. was used to

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14

Chalcopyrite and pyrite floatabilities in the presence of

One of the principal problems in flotation ofplex ores is the presence of pyrite and copper activated pyrite in moderately alkaline pHs. Misreported pyrite into copper concentrates dramatically declines copper grade and its recovery.

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17

Copper Flotation Elmhurst University

The copper minerals and waste rock are separated at the mill using froth flotation.

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20

Floatation of Ok Tedi Pyrite AusIMM

Pyrite is a significant gangue sulphide mineral in the Ok Tedi copper ore. Its presence in the flotation concentrate is not entirely desirable since it lowers the grade of the final copper concentrate. Lime depression of the pyrite has been practiced with some success. However, it has been observed that at the pH for pyrite

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21

Flotation of Pyrite

Table of ContentsDescription of SamplesPreparation of SamplesFactors Affecting Flotation of PyriteKind and Physical Condition of MineralSize of Mineral GrainsMethod

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PDF Selective flotation of chalcopyrite from pyrite

Flotation results of single mineral and binary mineral mixture showed that HEDP possessed a better selectivity for the separation of chalcopyrite from pyrite than EX. Zeta potential measurement

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23

Flotation of copper sulfide minerals and pyrite with new

De ionized water and tap water had a flotation suppressionpared with doubly distilled water. Flotation results with single minerals are correlated with those for copper and pyrite from natural ores. Several novel collectors have now been developed for sulfide flotation in

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28

Adsorbing Flotation of Copper Hydroxo Precipitates by

The removal of copper ions from dilute aqueous solutions by the addition of mineral pyrite fine particles was undertaken by following an adsorbing scavenging flotation mechanism. Pyrite generally constitutes a residual or a solid industrial waste by product in mixed sulfides processing plants.

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29

Selective Flotation of Chalcopyrite and Pyrite from a

Description. A process that allows selective flotation separation of low Cu/S ratio minerals chalcopyrite and pyrite from high Cu/S ratio minerals bornite and chalcocite from a mixed copper mineral concentrate under controlled oxidative reductive potential conditions has been developed.

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30

ROLE OF STARCH AND METABISUPHITE ON PURE PYRITE

Role of starch and metabisulphite on pure pyrite and pyritic copper ore flotation 41 Mineralogical study also showed that about 50 of ore is formed by pyrite, as a major mineral in the ore. Table 1. Chemical analyses of thepound Pure Pyrite Sample Pyritic Copper

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32

Lime use and functionality in sulphide mineral flotation

Nov 01, 2019· Sulphide ores are the major source of valuable metals such as copper, lead, zinc, and nickel, as well as gold, silver, and platinum group metals PGMs, and flotation is the dominant industrial process to recover these metals via the production of a sulphide concentrate.

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33

Interaction of copperII ions with pyrite and its

Xumeng Chen, Yongjun Peng, Dee Bradshaw, Effect of regrinding conditions on pyrite flotation in the presence of copper ions, International Journal of Mineral Processing, 10.1016/j.minpro.2013.08.007, 125, 129 136, 2013.

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34

Pyrite flotation: Magmapany's Superior Facility

A description of the technical aspects of the pyrite flotation operation is provided below. 2.2 Pyrite Flotation and Drying The pyrite flotation operation at Superior uses pre existing equipment. The system manipulates the pH of a normal copper flotation operation in order to float pyrite

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35

Optimization of a Copper/Molybdenum Flotation Circuit by

Optimization of a Copper/Molybdenum Flotation Circuit by Depressing Pyrite from the Rougher Flotation Stage Using Different Scheme of Reagents A thesis submitted in partial fulfillment of the requirements for the degree of Master Of Science in

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39

Influence of pyrite content on the flotation of

In the flotation of copper ores several processing plants report that copper recovery is affected by the proportion and type of pyrite in the ore, with the effectg more intense when the feed ore particles are fine, i.e. in fine regrinding. In this work, a model mix mineral system consisting of chalcopyrite and pyrite with varying pyrite content in the range 20 80 wt. was used to

Read more
40

Method of floatation of copper zinc pyrite ore versions

The method of floatation of copper zinc pyrite ore includes grinding in alkaline medium, conditioning with reagents collectors and a foaming agent, collective copper zinc floatation to produce a collective concentrate, containing minerals of copper and naturally activated sphalerite, and tails.

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42

Method of floatation of copper zinc pyrite ore versions

The method of floatation of copper zinc pyrite ore includes grinding in alkaline medium, conditioning with reagents collectors and a foaming agent, collective copper zinc floatation to produce a collective concentrate, containing minerals of copper and naturally activated sphalerite, and tails. The collector isposition of selective weak

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43

Depression of pyrite in porphyry copper flotation

Pyrite in the feed was Cu activated, and adsorbed xanthate even at high pH 10.5,g highly floatable Limited pyrite depression was achieved by increasing the pH with lime Na2SO3and DETA were effective in preventing/reversing the activation of pyrite in the presence of O2, reducing pyrite recovery by 50 .

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47

Effect of pyrite content of feed and configuration of

Mar 01, 2018· In copper flotation plants, the general strategy is to maximize the recovery of copper minerals along with floating some pyrite at the rougher stage non selective bulk flotation followed by further rejection of iron sulfides at the cleaner stage after regrinding.

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48

Interaction of copperII ions with pyrite and its

Xumeng Chen, Yongjun Peng, Dee Bradshaw, Effect of regrinding conditions on pyrite flotation in the presence of copper ions, International Journal of Mineral Processing, 10.1016/j.minpro.2013.08.007, 125, 129 136, 2013.

Read more
52

PDF Effect of different depressants on galena flotation

One of the principal problems in flotation ofplex ores is the presence of pyrite and copper activated pyrite in moderately alkaline pHs. Misreported pyrite into copper concentrates

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53

Floatation of Ok Tedi Pyrite AusIMM

Description Pyrite is a significant gangue sulphide mineral in the Ok Tedi copper ore. Its presence in the flotation concentrate is not entirely desirable since it lowers the grade of the final copper concentrate. Lime depression of the pyrite has been practiced with some success.

Read more
56

Pyrite flotation: Magmapany's Superior Facility

A description of the technical aspects of the pyrite flotation operation is provided below. 2.2 Pyrite Flotation and Drying The pyrite flotation operation at Superior uses pre existing equipment. The system manipulates the pH of a normal copper flotation operation in order to float pyrite

Read more
59

ROLE OF STARCH AND METABISUPHITE ON PURE PYRITE

Role of starch and metabisulphite on pure pyrite and pyritic copper ore flotation 43 occurred with 1.7 mg/ dm3, while 21 depression occurred with the same dosages of starch at pH 6.5 where pyrite flotation is expected to be weak at pH 10.

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