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  • Flotation of a copper sulphide ore from Okiep using thiol

    copper. Batch flotation tests were used to assess the performance in terms of mass-water recovery, sulphur grade-recovery and copper grade-recovery relationships and the Klimpel rate constant for copper recovery. The results showed that the di-ethyl-dithiocar-bamate (di C2-DTC) was the weakest collector of copper sulphide minerals.

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  • 60 Centuries of Copper: The Flotation Process

    This explains why, in order to smelt 4 million tons of new copper in 1963, nearly 400 million tons of ore had to be handled and treated in various ways. Flotation depends on the fact that the grains of some minerals, and especially of metals, differ in the degree to which their surfaces can

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  • Flotation separation of copper sulphides from arsenic

    01-11-2014· Cytec’s Aerofloat, a dithiophosphate, is used as a collector and Interfroth 63 is added as a frother. Sodium meta-bi-sulphite (SMBS) is added to control lead and zinc levels in copper concentrate. All reagents are added to the head of the rougher, there are no reagents added along either flotation

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  • Chalcopyrite and pyrite floatabilities in the presence of

    07-05-2007· One of the principal problems in flotation of copper complex 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. In this study, the effect of sodium sulfide, sodium metabisulfite (SMBS), and their dosages (100, 200,

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  • (PDF) The kinetics modeling of chalcopyrite and pyrite

    It is therefore clear that in this study, SMBS did not have a desirable influence on copper Figure 5 shows the flotation kinetics behavior of chalcopyrite recovery as the copper recovery remained relatively constant and pyrite using 15 g/t Z11, 25 g/t F7240, 15 g/ MIBC, and in both the absence and presence of SMBS.

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  • 60 Centuries of Copper: The Flotation Process

    This explains why, in order to smelt 4 million tons of new copper in 1963, nearly 400 million tons of ore had to be handled and treated in various ways. Flotation depends on the fact that the grains of some minerals, and especially of metals, differ in the degree to which their surfaces can

    Details >
  • Flotation separation of copper sulphides from arsenic

    01-11-2014· Cytec’s Aerofloat, a dithiophosphate, is used as a collector and Interfroth 63 is added as a frother. Sodium meta-bi-sulphite (SMBS) is added to control lead and zinc levels in copper concentrate. All reagents are added to the head of the rougher, there are no reagents added along either flotation

    Details >
  • (PDF) A Study on Selective Flotation in Low and High

    Basically, in the flotation of copper complex ores, a high pH value is required to separate valuable sulphide minerals from pyrite or pyrrhotite in the presence of xanthate

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  • (PDF) The kinetics modeling of chalcopyrite and pyrite

    It is therefore clear that in this study, SMBS did not have a desirable influence on copper Figure 5 shows the flotation kinetics behavior of chalcopyrite recovery as the copper recovery remained relatively constant and pyrite using 15 g/t Z11, 25 g/t F7240, 15 g/ MIBC, and in both the absence and presence of SMBS.

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  • Depression mechanisms of sodium bisulphite in the

    01-04-2006· First, we present an investigation into the effect of sodium bisulphite on the flotation of copper activated sphalerite; the investigation was designed to allow us to ascertain the degree of effectiveness of sodium bisulphite as a depressant and to optimise the conditioning parameters for the subsequent surface analysis of the treated sphalerite.

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  • Sodium metabisulfite Wikipedia

    Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na 2 S 2 O 5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent.

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  • 1 Froth Flotation Fundamental Principles

    This means that 95.7% of the copper present in the ore was recovered in the concentrate, while the rest was lost in the tailings. (c) The % Cu Loss can be calculated by subtracting the % Cu Recovery from 100%: % Cu Loss = 100 95.7 = 4.3% This means that 4.3% of the copper

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  • (PDF) Recovery Improvement of Coarse Particles by

    In the present study, stage addition of chemical reagents is used to improve copper grade and recovery of coarse size fractions (i.e.,>100 µm) at industrial rougher flotation cells.

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  • Flotation collectors Solvay

    Designed to operate across a broad range of alkalinity levels and provide faster flotation kinetics, our flotation collectors have become the industry standard in the recovery of copper, gold, molybdenum, lithium and other metals. AEROPHINE®, AERO® and AEROFLOAT® collectors (promoters) are used extensively for the flotation of sulfide minerals

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  • Mining Industry Copper Sulfide Ore and Flotation

    3 Summary of the copper mineral flotation process (1) Copper minerals (such as chalcopyrite and covellite) that do not contain iron are similar in floatability. Cyanide and lime have weaker inhibition on them, so a large amount of lime can be added to inhibit pyrite in the separation of copper and sulfur without seriously affecting the floatability of copper minerals.

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