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  • Platinum Palladium Flotation

    The best flotation conditions for both rougher and cleaner flotation stages were applied to 5,000-gram charges of ore. The results of a typical flotation test are given in table 10. A detailed analysis of a cleaner concentrate is given in table 11. The platinum-group metal content was more than twice that of a rougher concentrate, and the Al2O3 and CaO contents were significantly lower (see

  • Froth Flotation of a Particular ore

    Reef platinum bearing ore using mixtures of SIBX with a dithiophosphate and a dithiocarbamate. Presented at Minerals Engineering Conference Precious Metals ‘15, Falmouth. Kloppers, L., Maree, W., Hangone, G. and Oyekola, O. 2016. Froth flotation of a Merensky Reef platinum bearing ore using mixtures of SIBX with a dithiophosphate and a dithiocarbamate, Minerals Engineering (87) 54–58

  • Froth flotation Wikipedia

    Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in mineral processing, stone recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century. It has been described as "the single most important operation used for the

  • Application of fundamentals in optimizing platinum

    The UG-2 ore is a platinum-bearing chromitite ore that contributes a growing proportion of the platinum group metal (PGM) production from the Bushveld Igneous Complex in Northern South Africa (McLaren and de Villiers, 1982, Phillips et al., 2008). The complexity of design of a UG2 concentrator circuit is primarily due to the PGM mineralogy and the fact that the ore contains multiple gangue

  • Platinum & Palladium Ore Flotation Pilot Plant

    Serpentinized platinum-palladium ore from the Stillwater Complex, Montana, was successfully floated on a pilot mill scale using a sodium isobutyl xanthate-normal dodecyl mercaptan combination at the natural pH of 8.2. Rougher flotation recovered 96 pct of the platinum and 86 pct of the palladium in a concentrate assaying 1.7 oz/ton Pt and 4.7 oz/ton Pd. Cleaning the rougher concentrate with a

  • Flotation ore dressing Britannica

    Flotation is widely used to concentrate copper, lead, and zinc minerals, which commonly accompany one another in their ores. Many complex ore mixtures formerly of little value have become major sources of certain metals by means of the flotation process. This article was most recently revised and updated by Chelsey Parrott-Sheffer, Research Editor.

  • OVERVIEW OF PGM PROCESSING

    PLATINUM Disclaimer: Ore (Merensky/ UG2/Platreef, 3-6 4E g/t) •Composite concentrate (100-500 4E g/t) •Tailings (to tailings dams) •Chromite recovery •Converter matte (>2,800 4E g/t) •Sulphuric acid •Autocatalysts •Jewellery •Other Industrial products (e.g. chemicals, electronics, fuel cells) Mining Crushing & Milling Froth Flotation Drying and smelting in electrical

  • How to Refine Precious Metals Step One: Concentration

    28/02/2014· Crushing, grinding and flotation are featured in this latest educational video. Silver, Gold, Platinum, Palladium and other PGM ore. Careers and technology on Mineral Engineering in precious metals.

  • The Characterisation of a Two Stage Flotation Circuit

    THE CHARACTERISATION OF A TWO STAGE FLOTATION CIRCUIT TREATING A COMPLEX PLATINUM AND CHROMITE ORE A Thesis submitted to the UNIVERSITY OF CAPE TOWN in Fulfilment of the Requirements for the Degree of MASTER OF SCIENCE IN ENGINEERING by Francis de Beer B Eng (Chemical Engineering) (Potchefstroom) Department of stone Engineering

  • The estimation of platinum flotation grade from froth

    The ore used was UG2 from Rustenburg provided by Anglo Platinum. The fractional factorial experimental design was of the form 26-3 i.e. an 1/8th fraction of runs generated by binary combination of six factors measured at two levels as summarized in Table I. The experiments were conducted in completely random order to avoid biased results. The six variables considered were air flowrate (x 1

  • A rheological investigation of the behaviour of two

    With the installation of ultrafine grinding on many platinum operations in southern Africa, there were concerns as to whether this would cause rheologically complex behaviour during the subsequent flotation of the ore. Rheologically complex behaviour refers to the non-Newtonian behaviour experienced by some suspensions, associated with exponential increases in yield stress and viscosity with

  • The effect of energy input on the flotation of a platinum

    This study investigates the effect of energy/power input on the flotation of a platinum ore in a pilot-scale oscillating grid flotation cell. Oscillating grids generate near ideal hydrodynamic environments, characterised by turbulence which is relatively homogeneous and isotropic. Secondary rougher feed and primary cleaner tail streams were floated in a pilot-scale oscillating grid flotation

  • Platinum Beneficiation Multotec

    Overview of a UG2 process flow sheet: ROM ore is fed to a sizing screen after being fed past an over belt magnet. This material is conveyed upfront in the beneficiation circuit to a de-sliming screen after crushing, via a hammer belt sampler.

  • DOI: 10.1595/147106704X1667 Treatment of Platinum

    The ore had the compositions shown in the Table. An X-ray microscopy study of the phase composition of the flotation concentrate showed that nickel is present as pentlandite and copper as chalcopyrite. Iron is present in these minerals and is also present as pyrrhotite and in rock-forming minerals (pyroxene, spinel and talc). Platinum group metals are found as their own sul-fides and in mixed

  • THE FLOTATION OF HIGH TALC-CONTAINING ORE FROM THE

    THE FLOTATION OF HIGH TALC-CONTAINING ORE FROM THE GREAT DYKE OF ZIMBABWE by VELAPHI MOSES NASHWA Supervisors: Doctor M. K. G. Vermaak and Professor J. C. Davidtz Department of Materials Science and Metallurgical Engineering University of Pretoria Abstract This project investigates the optimisation of platinum-group metals recovery at the Mimosa Mine in

  • The role of dithiophosphate as a co-collector Scinapse

    1/10/2012· The major loss of base metals in beneficiation of the Merensky Reef ore occurs during the separation of the siliceous gangue from the platinum group and base metal sulphides by selective flotation. The stone examines the use of amine complexes in managing inadvertent activation of pyroxene in a pentlandite-pyroxene flotation system at pH 9. Zeta potential, time of flight secondary

  • Effect of pH on the Recovery and Grade of Base Metal

    Abstract—This study investigated the effect of pH on the recovery and grade of the Platinum Group Metals (PGMs) and base metal sulphides from the UG2 ore of the bushveld complex. This was achieved through running a series of test work in a Denver flotation cell at varying pH 6-11 at constant reagent dosage. The UG-2 reef is characterized by two predominant gangue phases i.e. chromite and

  • Froth Flotation and Gold Extraction Manhattan Gold &

    23/07/2014· Most methods of water-based gold extraction are dependent on gold’s lack of buoyancy to work. However, froth flotation uses a different property of gold to separate it from ore. Froth flotation is a method for separating hydrophobic materials (which will not mix with water) from hydrophilic materials (which readily mix with water).

  • (PDF) Effect of Alteration on the Mineralogy and Flotation

    Effect of Alteration on the Mineralogy and Flotation Performance of PPM Platinum Ore. Chapter · January 2012 with 195 Reads How we measure 'reads' A 'read' is counted each time someone views a

  • Platinum Ores Article about Platinum Ores by The Free

    Such platinum concentrates are then refined. Complex sulfide platinum ores are concentrated by flotation, with subsequent multioperation pyrometallurgical, electrochemical, and stone treatment. The main countries producing platinum ore are the USSR, the Republic of South Africa, and Canada. The world reserves of platinum group metals