Effect Of Ph To Iron Bearing Copper In Flotation


    This study examined the bulk flotation of copper and zinc utilizing .... 4.9 Effect of collector dosage on copper grade in the flotation concentrate 30 ... to the processing of arsenic bearing ores and concentrates (Makita, et.al. .... The higher pH serves to depress the iron sulfide gangue minerals which are commonly present.

  • Flotation method for the recovery of minerals

    a water suspension of the ?nely divided ore at a pH at which the metal ... silicate bearing mineral, and also with the recovery of iron oxide ... ?otation recovery of minerals containing copper and iron, .... The graph shows a marked effect of pH.

  • Pyrite-Gold Recovery in Copper Rougher Flotation Tailings

    at the head of copper flotation (copper rougher feed) and ... ores, chalcopyrite and gold are the main valuable mineral/metal phases, with ... flotation circuit due to the detrimental effect on Cu final grade. ... chalcopyrite and covellite were the major copper-bearing ... flotation time was 15 min and the pulp pH was kept constant.

  • GOLD RECOVERY - FLOTATION.pdf - The Vespiary

    ores, base metal ores, copper}nickel ores, platinum .... shape factor also affects gold recovery using a gravity .... effect on gold-bearing sulfide flotation, at a pH.

  • Effects of Process Parameters on Selective Flotation ... - [email protected]

    granulomery for rougher and cleaner flotation, pH of the pulp, dosage of collector ... used as depressant and copper sulphate as activator for zinc bearing minerals. ... constant presence of iron in all grains of sphalerite could be due to structural...

  • Contributions to an improved understanding of the flotation process.

    Aug 31, 2005 ... For example, the pH – Eh effect on the surface chemistry is of critical ..... gangue minerals by modifiers such as copper sulphate, which are extensively ...... flotation of gold bearing iron sulphides, Proceedings of the XVIIIth.

  • Dissolved-Air Flotation of Metal Ions

    Jun 18, 2007 ... as hydroxide precipitates of metal-bearing wastes mainly by amines (3) or ... Effect of sodium sulfide and pH on the removal of copper ions by...

  • Characterization and Flotation of Sulfur from Chalcopyrite ...

    with a copper grade of 14.5% in a single-stage froth flotation. The chalcopyrite ... refined copper [3]. As early as 1923, ferric chloride leaching was applied to one sulfide ore and was .... The effect of kerosene with 20 g/t pine oil at pH 6 is given in .... Involved in the Dissolution of Chalcopyrite in Chloride-bearing Lixiviants”,.

  • Minerals Engineering International Online - Commodities: Arsenic ...

    G. Long, Y. Peng, D. Bradshaw, Flotation separation of copper sulphides from ... of arsenic(V) with ferric iron by lime neutralization: Process parameter effects on ... for the beneficiation of arsenic-bearing copper ores, Minerals Engineering, Vol. .... T. Nakamura, Effect of pH on atmospheric scorodite synthesis by oxidation of...

  • View/Open - Aaltodoc

    flotation where pH, collector and depressant dosages were varied to provoke changes in the responses of copper recovery and grade, iron and nickel recoveries. ... Keywords: Copper flotation, Statistical modelling, Response Surface ...... This thesis will solely focus on the flotation of copper-bearing minerals as well as.

  • Flotation chemistry of complex sulphide ores : Recycling ... - pure.ltu.se

    surface iron and calcium carbonates on chalcopyrite in the presence of process water and ... carbonate species on sphalerite were also revealed at pH 11.5 in the ... Water: Effect of calcium and sulphate ions in sulphide flotation. ..... copper on the pyrite surface, preventing the adsorption of xanthate and thus leading to the.


    Figure 1 Effect of pH on collectorless flotation recoveries on ..... tion response of the lateritic nickel-bearing iron with ... pH after activation with copper sulfate.

  • bacterial leaching of complex sulphides from mine tailings altered by ...

    flotation of this material to bring sulphide concentrate suitable for further processing by ... proportion of the copper and zinc bearing minerals are found as fine inclusions and intergrowths with pyrite and ... restricting the access of the ferric ions onto mineral surfaces. .... The effect of pH variation between 1.5 and 1.9 has been.

  • The effect of quartz on the flotation of pyrite depressed by serpentine

    For example, zinc metal hydrolysis products adsorb selectively on sphalerite surface in ... Effect of pH on the flotation recovery of quartz, serpentine and pyrite. ..... Recovery mechanisms for pentlandite and MgO-bearing gangue minerals in nickel ores ... Some factors that affect beneficiation of sulphide nickel–copper ores.

  • Leaching Characteristics of Upgraded Copper Flotation Tailings

    Aug 26, 2012 ... Abstract—The copper flotation tailings from Konkola Copper mine in Nchanga, Zambia ... in temperature and a decrease in pH levels. In comparison to the ... cupriferous micas, calcites, siliceous, feldspar and iron bearing oxide gangue ... interstitial tricking effect on the concentrating bed which simulates a...

  • Base Metal and Iron Ore Mining - IFC

    base metals (copper, lead, nickel, and zinc) and of iron. The documents on Aluminum and on. Coal Mining and ... This acid mine drainage (AMD) can have a pH of. 3 or lower; sulfate ... of sulfide-bearing materials and can present a significant ... effects on aquatic resources and downstream us- ... needed for floatation water.

  • Designing the Optimal Flotation Circuit – The ... - Jameson Cell

    3. ABSTRACT. OZ Minerals' Prominent Hill copper-gold concentrator in South Australia ... In addition to recovery of valuable minerals, the flow sheet for this iron oxide-hosted ... 25 microns or finer for adequate liberation of the fluorine-bearing minerals. Satisfactory .... the effect of ageing on flotation performance;. • prediction...

  • Interpreting the role of reagents in the flotation of platinum- bearing ...

    base metal sulphide (BMS) minerals present in the Reef, either as ... bearing Merensky ores. J.G. WIESE, M. ... the majority of the added copper, at these alkaline pH values ..... flotation, although the positive effect of copper sulphate. Figure 6:...

  • Differential flotation of copper-zinc at Prieska Copper Mines ... - saimm

    van die koper by 'n amper neutrale pH met die gebruik van 'n sink-sianide sfaleriet ... The copper and zinc-bearing .... depress iron sulphides and the choice of reagents may be ... is iron-bearing .... effect on pyrite flotation independently.