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pyrite flotation minerals

Pyrite is a major gangue mineral associated with galena and other valuable minerals and it is necessary to selectively remove pyrite to upgrade the lead concentrate by froth flotation In this study the flotation experiments of a single mineral and mixed minerals were performed using chitosan with different molecular weights MW 2−3 3minus6 10 and 100 kDa as a depressant ethyl  quarry around doornpoort in pretoria

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  • pyrite flotation minerals

    Pyrite Tailings Recovery by Flotation Pyrite has long been used as a source of sulphur and its recovery as a byproduct from the flotation of certain base metal ores is a well established practice Large tonnages of mill tailings which have accumulated as a result of various milling operations frequently contain significant amounts of pyrite

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  • pyrite flotation minerals

    Flotation tests of single mineral and binary mineral mixture were conducted in an XFG flotation machine with a 40 mL plexiglass cell at an impeller speed of 1700 rmin In each experiment 20 g of single or binary mineral mixture 10 g chalcopyrite plus 10 g pyrite samples were placed in an ultrasonic bath for 5 min to remove the surface oxides

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  • pyrite flotation minerals

    Pyrite floats at very low pH or gets entrapped during flotation Column flotation will give good results for such problems It has forth washing system where entrapped minerals are separated to get very clean concentrate 4 years of RD in RDM proved to reduce silica from 7

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  • pyrite flotation minerals

    hydroxide species that inhibit chalcopyrite flotation Copper activation of pyrite increases collector adsorption onto pyrite surface promoting its flotation which subsequently lowers the overall chalcopyrite recovery and grade Xu et al 1995 Peng et al 2003

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  • pyrite flotation minerals

    Pyrite Flotation A Review Sulfide minerals are semiconductors and pyrite is the major gangue mineral associated with these ores Main interest in the processing of complex sulfide ores has focused on the rejection of pyrite and selectivity problem that arises owing to the similar electrochemical behavior of pyrite to the other sulfide minerals in

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  • pyrite flotation minerals

    Pyrite The mineral pyrite or iron pyrite also known as fools gold is an iron sulfide with the chemical formula FeS 2 ironII disulfide Pyrite is considered the most common of the sulfide minerals Pyrites metallic luster and pale brassyellow hue give it a superficial resemblance to gold

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  • pyrite flotation minerals

    The sulphide minerals are compounds of the metals with sulphur Nearly all these minerals have a metallic luster ie the peculiar shining appearance of metals such as gold silver copper lead tin iron etc They are all heavy minerals and nearly all are of economic importance Iron Pyrites or Pyrite

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  • pyrite flotation minerals

    Iron sulfide pyrite pyrrhotite marcasite depressant used in the flotation separation of base metal sulphides Also used as an alternative partial cyanide replacement to depress iron and zinc sulfides in Pb Zn flotation UNIMAX SD210 Iron sulfide pyrite pyrrhotite marcasite depressant used in the flotation separation of base metal sulfides

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  • pyrite flotation minerals

    In ore beneficiation flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer Sulfide and nonsulfide minerals as well as native metals are recovered by froth flotation

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  • pyrite flotation minerals

    Pyrite Depression in Copper Flotation The more flotation collector you have on the higher you will need to increase that pH for effective pyrite depression You also need to insure your pyrite and copper minerals are well liberated for good chemical separation by pH In froth flotation depressing pyrite or any metal is impossible if minerals are locked

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  • pyrite flotation minerals

    Serpentine a magnesium silicate mineral with positive surface charge in many sulfide ores around the world usually deteriorates the flotation behavior by covering the target mineral surface

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  • pyrite flotation minerals

    Flotation studies of single minerals were performed first to investigate the effects of pulp pH LY concentration SHMP concentration on the flotation of pyriteserpentine system And the results are shown in Fig 4 Fig 5 Fig 4 shows the flotation recovery of pyrite as a function of pulp pH with and without serpentine particles It is evident that high recoveries 98 of pyrite was obtained in the

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  • pyrite flotation minerals

    Pyrite Flotation Supertor Mine additiond income for the facility Because this facility is currently operating the pyrite flotation circuit on an as needed basis to suppiy demand pyritebearing tailings continue to be discharged to the tailings impoundment Because the pyrite flotation has not fully eliminated a

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  • pyrite flotation minerals

    Dec 20 2018 · 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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  • pyrite flotation minerals

    electrodes The electrodes were platinum gold chalcopyrite pyrite and galena In solution potentials were linearly dependent on pH with a di erent slope for each electrode Chalcopyrite pyrite sphalerite and galena minerals flotation tests were performed in a

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  • pyrite flotation minerals

    Pyrite Depression in Copper Flotation The more flotation collector you have on the higher you will need to increase that pH for effective pyrite depression You also need to insure your pyrite and copper minerals are well liberated for good chemical separation by pH In froth flotation depressing pyrite or any metal is impossible if minerals are locked

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  • pyrite flotation minerals

    INFLUENCE OF PYRITE CONTENT ON THE FLOTATION OF CHALCOPYRITE AFTER REGRINDING WITH ISAMILL Clement Owusu Max Zanin Daniel Fornasiero and Jonas AddaiMensah Ian Wark Research Institute University of South Australia Mawson Lakes SA 5095 Australia Email

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  • pyrite flotation minerals

    Keywords Selective flotation Sphalerite Pyrite Depressants 1 Introduction Pyrite is one of the major diluents of copper lead and zinc concentrates One explanation for the high flotation of pyrite in alkaline pH conditions is its inadvertent activation by copper either

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  • pyrite flotation minerals

    Sep 01 2019 · The value mineral in the ore is mainly pyrite and the dominant gangue mineral is pyrophyllite 12 Froth flotation a physicochemical separation process that utilizes the difference in surface properties of the valuable minerals and the gangue minerals is the main technique to recover pyrite from pyrophyllite and other gangue minerals at the present time 3

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  • pyrite flotation minerals

    complete pyrite 1 marmatite 2 cleiophane 3 covellite 4 and chalcopyrite 5 flotation only pyrite Figure 2 curve 1 but even of chalcopyrite at pH ≤ 105 Figure 2 curve 5 Optimal conditions for depression of iron sulphides by lime The X values calculated from equations 1 – 3 are

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  • pyrite flotation minerals

    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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  • pyrite flotation minerals

    0845 The interactions of thiol collectors with frothers on pyrite quartz and chalcocite 1215 Effect of hydrogen peroxide on the separation of copper sulfide minerals and arsenicbearing copper minerals using flotation

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  • pyrite flotation minerals

    Froth flotation is considered to be the most widely used method for ore beneficiation In ore beneficiation flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer

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  • pyrite flotation minerals

    The flotation results showed that coarser serpentine possessed a weaker depression effect on the pyrite flotation process and the use of KAlSO42·12H2O could efficiently limit the detrimental

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  • pyrite flotation minerals

    Dec 20 2018 · 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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  • pyrite flotation minerals

    As a solid waste kaolinitetype pyrite flotation tailings KPFT are a type of lowquality kaolin that contain impurities such as iron and titanium In this study KPFT were calcined at 800 °C for two hours

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  • pyrite flotation minerals

    Lecture 5 Flotation 1 CHAPTER 7– FLOTATION OF SULPHIDE MINERALS Contents Xanthate adsorption Oxidation reactions Activation depression Flotation of chalcopyrite galena sphalerite pyrite Selective flotation PbZn bulk flotation Sulphide minerals are floated by sulphydryl collectors thiocomponds Adsorption of Sulphydryl Collectors

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  • pyrite flotation minerals

    Flotation In the late 1970s and early 1980s there were approximately 25 pyrite flotation plants operating in South Africa These were located in the gold mining areas where the slimes dams were retreated mainly to produce a concentrate for sulphuric acid production The gold content was 05gton of which about 50 was recovered in the concentrate

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  • pyrite flotation minerals

    Pyrite is a major gangue mineral associated with galena and other valuable minerals and it is necessary to selectively remove pyrite to upgrade the lead concentrate by froth flotation

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  • pyrite flotation minerals

    Having good selectivity in the flotation for sulfide ores because of its weak collector for pyrite Having good flotation effects on copper lead zinc stibnite and other sulfide minerals It can improve the separation effects on lead and zinc under the conditions of high alkalinity

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  • pyrite flotation minerals

    GoldPyrite ores Where the gold is intimately associated with various sulphide minerals especially iron sulphides which include pyrite arsenopyrite and pyrrhotite flotation recovery of the gold is dependent on recovery of the associated minerals In this case gold follows the associated sulphide mineral recovery

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  • pyrite flotation minerals

    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

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  • pyrite flotation minerals

    The recovery of these copper minerals by flotation or hydrometallurgy from ores typically containing 05TCu open pit mines and 12TCu underground mines is of great commercial importance

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  • pyrite flotation minerals

    In mineral flotation eg chalcopyrite flotation against pyrite the current strategy is to maximize the copper recovery by floating some pyrite at the rougher stage while further rejecting it

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  • pyrite flotation minerals

    Single mineral flotation test results show that lime depresses pyrite more strongly than sodium hydroxide when pH is in the range of 70115 at pH 115 lime and sodium hydroxide depress

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  • pyrite flotation minerals

    Request PDF on ResearchGate Collectorless Flotation of Oxidized Pyrite Pyrite is a chemically active mineral the surface of which oxidizes when exposed to the atmosphere and to aqueous

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  • pyrite flotation minerals

    flotation sulfides zeta potential isoelectric point mechanism of action chalcopyrite pyrite pyrrhotite galena tennantite sphalerite

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