1. Home
  2. > Blog Detail

Pgm extraction process of chrome

Process optimization of a chrome ore gra vity concentration plant ... the influence of the primary PGM extraction circuit and secondary chromite extraction activity as applied specifically to UG2

  • Leaching and recovery of platinum group metals from
    Leaching and recovery of platinum group metals from

    Existing processes for the recovery of platinum group metals (PGM) from UG-2 ores place stringent requirements with regard to chromite content (about 2.8 per cent) upon feed material to the plant. The conventional process sequence involves: smelting of a flotation concentrate to remove gangue material and to produce an iron-nickel-copper-PGM matte

    Get Price
  • Chromium: Jubilee results buoyed by record production from
    Chromium: Jubilee results buoyed by record production from

    Nov 27, 2020 As a result, much of the chromite-rich waste, post-PGM extraction, constitutes fine and ultra-fine grains at the sub-60-micron level. Since most of the chromite losses during the conventional washing process occur in this size fraction, industry-wide metallurgical R&D efforts have focused on improving recovery at this particle size

    Get Price
  • how to extract chrome from ore
    how to extract chrome from ore

    Extraction of the pure metal from ores is a complex process, and includes milling the ore, a froth floatation process, and smelting at high temperatures. This removes base metals, notably iron and sulfur, and concentrates PGM- platinum group metals- gold, platinum and palladium

    Get Price
  • Tharisa Minerals drives processing optimisation with
    Tharisa Minerals drives processing optimisation with

    May 24, 2018 Despite a simple minerals processing flowsheet, Tharisa’s ore body mineralogy allows the company to maximise chrome extraction upfront in the process, followed by PGM extraction in the second part of the process, and finally a third pass to extract additional chrome, explains Tharisa mine metallurgical manager Alston Smith, noting that this

    Get Price
  • THE PRIMARY PRODUCTION OF PLATINUM GROUP
    THE PRIMARY PRODUCTION OF PLATINUM GROUP

    Extraction and refining Extraction, concentration and refining of PGMs require complex, costly and energy-intensive processes that may take up to six months to produce refined metal from the time the first PGM-bearing ore is broken in a mine. 1 Chamber of Mines of South Africa, Annual Report 2012; figure does not include recycling

    Get Price
  • Selective Recovery of Platinum Group Metals from
    Selective Recovery of Platinum Group Metals from

    The main process technologies for recovery of PGMs are categorized as pyrometallurgical methods, selective chlo-rination processes, and hydrometallurgical methods, such as solvent extraction. Recovery of PGMs by pyrometal-lurgy requires various processes, which take a long time and consume a large amount of energy. In pyrometallurgical

    Get Price
  • refining of platinum group metals / priciple flow sheet
    refining of platinum group metals / priciple flow sheet

    most sophisticated industrial inorganic chemistry: refining of platinum group metals ore concentrate. pgm ore concentrate The figure below shows a typical assay of a South African platinum group metals ore concentrate obtained as the filter cake after sulfuric acid leach (according to the Sherrit process) of a Merensky reef converter matte

    Get Price
  • BRPI0502276A - hydrolyzed collagen and chromium / collagen
    BRPI0502276A - hydrolyzed collagen and chromium / collagen

    PROCESS FOR EXTRACTION OF HYDROLIZED COLLAGEN AND CHROME / COLLAGEN COMPLEX OF CHROME-CURRENT LEATHER WASTE . This invention is a process for the extraction of hydrolyzed collagen and chromium / collagen complex from chrome-tanned leather waste where the first process uses Enzyme JOANA F LIX-1H, and Enzyme JOANA F LIX-2H. The second one

    Get Price
  • WO2004090178A1 - Recovery of platinum group metals
    WO2004090178A1 - Recovery of platinum group metals

    ABSTRACT A process of recovering platinum group metals (PGMs) from a pregnant solution or leachate containing PGM values and base metals, typically a cyanide solution or leachate. A non-selective precipitation of the PGM values and base metals to form an insoluble precipitate comprising the PGM values and base metals is followed by selective leaching of the precipitate

    Get Price
  • Chrome Web Store
    Chrome Web Store

    Discover great apps, games, extensions and themes for Google Chrome

    Get Price
  • OUTOTEC SMELTING SOLUTIONS FOR THE PGM
    OUTOTEC SMELTING SOLUTIONS FOR THE PGM

    Outotec also has hydrometallurgical processes available for further treatment and extraction of PGMs, which are also briefly discussed. Introduction The platinum group metals (PGMs) have exceptional physical and chemical properties that have made them indispensable to modern society. Platinum and palladium especially play an

    Get Price
  • Rapid and selective recovery of palladium from platinum
    Rapid and selective recovery of palladium from platinum

    Nov 15, 2018 Extraction of Pd(II) as a function of HCl or HNO 3 concentration. In hydrometallurgical extraction processes, metal ions are usually leached using very highly concentrated solutions of

    Get Price
  • Allow or block access to websites - Google Chrome
    Allow or block access to websites - Google Chrome

    Whenever a system component can process user-supplied data or content from the web, chrome-untrusted:// URLs are used. If you want to block chrome://settings, chrome://os-settings or chrome-untrusted://, use the SystemFeaturesDisableList policy. This blocks all the settings, not just part of it

    Get Price
  • Development of PGMs and Chrome Extraction
    Development of PGMs and Chrome Extraction

    recovery of chrome). PGMs are associated with the base metals sulphides and silicates (not chrome). The near-perfect separation of chrome from the PGMs can be achieved because of the chrome removal step within the flotation circuit, the bulk of the fine chromatite particles in . Development of PGMs and Chrome Extraction

    Get Price
  • Extraction of Platinum Group Metals | IntechOpen
    Extraction of Platinum Group Metals | IntechOpen

    Feb 21, 2018 Processing of PGM involves comminution, flotation, smelting, converting, base metals refinery and precious metals refinery. Due to increasing chrome content in the feed and the challenges associated with operating high chrome feed, alternative routes to smelting of PGM are being investigated. Some hydrometallurgical routes have been proposed

    Get Price
  • A Chrome Jewel in The PGM Crown | Multotec News
    A Chrome Jewel in The PGM Crown | Multotec News

    The material is delivered to site via a newly constructed 10 km overland pipeline that feeds the ore directly into the plant. Once the chrome has been extracted it is delivered to Lonmin’s adjacent concentrator plant for additional PGM extraction. The plant itself is incredibly neat and compact, occupying a very small footprint

    Get Price
  • TREATING CHROME TAILINGS FOR PGMs
    TREATING CHROME TAILINGS FOR PGMs

    Aug 19, 2008 The process at Millsell involves six stages, the first of which is the obviously the mining that produces the tailings. The mines, in upgrading the chromite content of their ore, produce a tailings stream that contains the majority of the PGMs of the ROM chrome ores. It is these chrome ores with elevated levels of PGMs that are treated

    Get Price
  • PGM Ore Processing at Impala's UG-2 Concentrator
    PGM Ore Processing at Impala's UG-2 Concentrator

    processed due to the high chrome content in the feed and subsequently in the final concentrate. Very little of the chrome itself exhibits any degree of positive floatability, but when excessive grinding takes place it reports to the final concentrate in the form of entrainment. The chrome occurs in the ore as a chrome spinel with iron oxide and

    Get Price
  • OVERVIEW OF PGM PROCESSING
    OVERVIEW OF PGM PROCESSING

    PGM grades and ratios of Platinum (vs Palladium) • The UG2 Reef, a chromite-rich reef, is more consistent, but lacks Merensky’s high yield of Gold, Copper and Nickel byproducts. In the last decade, PGM miners recover chromite as a separate product • Platreef is a wider reef with lower PGM values, but higher base metal content (c. 5 times) 5

    Get Price
  • (PDF) Commercial Processes for the Extraction of
    (PDF) Commercial Processes for the Extraction of

    Commercial Processes for the Extraction of Platinum Group Metals (PGMs) 123 a mineral phase reconstruction process was proposed to recover PGMs from spent auto-exhaust catalyst [ 72 ]

    Get Price
top
images