flotation oxidised copper ore

(PDF) Investigation into the mineralogy and flotation ...

Optimisation and control of laboratory geological oxidation/alteration on the mineralogy and ﬂotation sulphidisation of oxidised copper ores with an ion selective electrode. Aust. performance of .

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Long Term Stockpiling of Copper Ore, Batu Hijau | Mine Waste

This is equivalent to a loss of about 400,000t of copper, due to stockpiling. The approaches developed for preserving the value of the stockpiled ore included: • Increasing the flotation recovery of oxidised ore using Controlled Potential Sulfidisation (CPS).

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Role of sodium sulfide in the flotation of oxidized copper ...

Abstract. This paper reviews uses of sodium sulfide in the flotation of oxide minerals of copper, lead, and zinc. The activation and depression effects of sodium sulfide are of particular importance because of their applications with oxidized lead and copper ores.

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The Effects of Different Depressants on Oxidised Copper ...

For refractory oxidised copper ores of Huidong Sichuan province, studing the different depressants on the influence of oxidised copper ores flotation behavior. The results showed that: the depressanting effect of the combination of sodium hexametaphosphate primarily is better. When the dosage of the combination of sodium hexametaphosphate and sodium humate reagent is 300 g/t, ratio is 2:1,the ...

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Processing Oxidised Nickel Ore With Flotation

Flotation oxidised copper ore; flotation oxidised copper our products flotation froth flotation, the ground ore is mixed with water to form a slurry and the desired mineral is rendered hydrophobic by the addition of a surfactant or collector chemical although some mineral surfaces are naturally.

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INVESTIGATION OF EFFECTIVE PARAMETERS FOR .

porphyry copper flotation is generally controlled by pH. The presence of clay in the ore is the main reason for unstable froths and lowered frothing power. It has been shown that destabilization of frother takes place in the presence of ultrafine particles (Srdjan 2007). It is a common practice that during flotation of

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The influence of microwave pre treatment on copper flotation

The influence of microwave pretreatment on copper flotation copper recovery of 54% is obtained compared with a copper recovery of % for ore treated for second at 5 kW. After second microwave exposure, a copper recovery of % is achieved. It can be seen that the final cumulative

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Froth Flotation Method JXSC Machine

The flotation of gold and silver minerals is mostly carried out in alkaline pulp medium, but for some goldbearing pyrite and pyrrhotite, it is suitable for flotation in weak acid pulp medium. Oxygen has an effect on the flotation process of goldsilver sulfide ore oxidized to different degrees.

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Flotation of the oxidized ores of zinc

paration on those ores 1n Which the difterence between specific gravity 0'1 the deaired mineral and the gangue mined is amall..A1J a result there 1. need :tor a. method ot beneficiating yar10U8 depos!ts ot oxidized '].'he two OotmnlBrclally lmportant oxidized zInc m1nerals under con.lderat1oD are an1th80nite, the zinc carbonate and ...

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Oxidative weathering of a copper sulphide ore and its ...

In this study, a copper sulphide ore has been artiﬁcially oxidised for varying lengths of time and a series of grinding and ﬂotation tests under several grinding environments were completed at each time interval to study the combined effect of ore oxidation and grinding .

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(PDF) Oxidative weathering of a copper sulphide ore and ...

In the flotation of copper ores, several processing plants report that copper recovery is affected by the proportion and reactivity of pyrite in the ore, with the effect becoming more intense when ...

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flotation of oxidized lead zinc ores

· How to Process Oxidized Lead Zinc Ore by Flotation 911 Metallurgist Mar 19, 2017 The problem of treating oxidized lead zinc ores for the production of . Flotation Oxidised Copper Ore hsfoerdertechnikeu. Flotation Behavior of Iranian Oxidized Zinc Ore Using, In the present study, the flotation behavior of oxidized zinc ore from ...

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China Copper Oxide Ore Froth Flotation Concentration Plant ...

Working Process of Copper Ore Flotation Processing Plant: Firstly, the material ore is sent to the Jaw Crusher for primary crushing. Then the ore with a proper size will be sent into the Ball Mill for fine crushing and grinding. After that,the ore powder goes into the next procedure: classifying.

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The Effects of Different Depressants on Oxidised Copper ...

Abstract: The ore is the oxide ore of Copper lead and zinc, The ore has high Oxidation rate of Pb,nearly 50%. which contains % of Pb,% of Zn,% of Cu. The flotation flowsheet consisting of the scene is "Part of the mixed flotation—inhibitor Zn and Pb .

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A successful operational initiative in copper oxide ...

In general, the conventional flotation methods of copper sulfide ores do not apply to oxide ores. Flotation with fatty acids or surface sulphidisation of copper oxide minerals and their subsequent flotation using sulfhydryl collectors are two main methods for the Cu recovery from oxide ores.

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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 the samples Compound Pure Pyrite Sample % .

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EFFECT OF GRINDING CHEMISTRY ON THE SULPHIDISATION .

Oxidised sulphide mineral and oxide mineral were studied separately in the first approach. The oxidised sulphide ore was studied by artificially oxidising a copper sulphide ore to various states during 16 months. For each oxidation state, the effect of chemistry was

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Copper ores Danafloat Home

Effective flotation collector reagent selection is dependent on the sulphide minerals present, their mineral associations in the ore, and circuit characteristics. Because an ore typically has more than one copper sulphide mineral type, often a combination of sulphide flotation collectors is used to maximize metallurgical performance.

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Flotation of a copper sulphide ore from Okiep using thiol ...

froth flotation performance obtained with a borniterich copper sulphide ore from Okiep Copper Mine with a feed grade of % copper. Batch flotation tests were used to assess the performance in terms of masswater recovery, sulphur graderecovery and copper graderecovery relationships and the Klimpel rate constant for copper recovery.

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A study of the flotation characteristics of a complex ...

ore after sulphidisation showed a copper deportment of % cuprite, % malachite, % chalcopyrite and % chrysocolla, suggesting that all oxide copper minerals present in the LQ ore, except chrysocolla, are amenable to flotation using SIBX after sulphidisation.

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RECOVERY OF COPPER FROM OXIDE COPPER ORE BY .

flotation tests were unsuccessful in terms of both recovery and grade of concentrate product. The highest copper recovery of concentrate was found as % with % copper content. The concentrate with highest copper grade of % was obtained with only % copper recovery. Unsuccessful flotation of the test

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ThirtyYear Plant Practice of Sulphidisation Flotation ...

Since 1960, the Dongchuan Copper Mining Bureau, Yunnan Province, China, has treated copper oxidised ores by sulphidisation – flotation technique only to recover copper. In order to improve the metallurgical performances and economics of flotation, extensive development work has been carried out during the past 30 years: several specific flotation flowsheets have evolved from the...

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