extraction of platinum

only platinum producer in South Africa and the only major producer in the world whose prime activity is the extraction of the platinum metals. From the outset Johnson Matthey has been associated with Rustenburg, $rst in developing methods for the extraction of the platinum metals from these OTCS, and thereafter as smelters

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  • US4685963A - Process for the extraction of platinum group

    US4685963A - Process for the extraction of platinum group

    A process for separating platinum group metals (PGM's) from various feedstock materials, is disclosed, wherein a plasma arc flame is employed to produce a superheated puddle on the surface of a slag layer to accelerate the association of platinum group metals with a collector material and formation of a recoverable layer of platinum group metals and collector material

  • Extracting platinum metals - Chemical Engineering | Page 1

    Extracting platinum metals - Chemical Engineering | Page 1

    Mar 01, 2016 Extracting platinum metals. By Paul Grad | March 1, 2016. The traditional method for recovering platinum-group metals (Pt, Pa, Ir, Os, Rh, Ru and Au) is not economically viable in the case of low-grade deposits, but researchers from the Western Australian School of Mines, Curtin University (Perth; www.curtin.edu.au) and the Dept. of Processing

  • (PDF) Extraction of Platinum Group Metals

    (PDF) Extraction of Platinum Group Metals

    The extraction process routes to recover high purity of platinum group elements are also reviewed. The classification briefly describes the different types of ore deposits

  • BINARY EXTRACTION OF PLATINUM METALS: Solvent Extraction

    BINARY EXTRACTION OF PLATINUM METALS: Solvent Extraction

    May 16, 2007 The interrelation of the binary extraction constant of chloro complex acids of platinum metals with the extraction constant of hydrochloric acid and the anion-exchange constant is described. We studied platinum metal extraction by salts of organic acids and organic bases and showed that in the systems involving binary extractants, such as salts

  • Selective Extraction of Platinum(IV) from the Simulated

    Selective Extraction of Platinum(IV) from the Simulated

    The recycling of rare metals such as platinum (Pt) from secondary resources, such as waste electronic and electrical equipment and automotive catalysts, is an urgent global issue. In this study, simple secondary amides and urea, N-(2-ethylhexyl)acetamide, N-(2-ethylhexyl)octanamide, and 1-butyl-3-(2-ethylhexyl)urea, which selectively extract Pt(IV) from a simulated effluent containing numerous

  • Extraction of platinum, palladium and gold by cyanidation

    Extraction of platinum, palladium and gold by cyanidation

    Apr 01, 1994 The highest platinum extraction of 36.8% was achieved by cyanidation at pH 9.5 after a pre-treatment with 300 kg/t NaC1 at a redox potential of 570-620 mV and pH 1.0, followed by filtration of the slurry before cyanidation (test 15). However, the corresponding palladium extraction value was only 25.6%. Thus, even though the platinum extractions

  • Process for extraction of platinum group metals from

    Process for extraction of platinum group metals from

    Process for extraction of platinum group metals from chromite-bearing ore . United States Patent 4295881 . Abstract: A process for treating chromite-bearing ores to obtain useful mineral values, especially platinum group metal, therefrom wherein the ore is separated into magnetic and non-magnetic fractions; the non-magnetic fraction, containing

  • Recovery of platinum group metals from spent automotive

    Recovery of platinum group metals from spent automotive

    13 hours ago Extraction of platinum group metals from solutions after the second stage of leaching. As the third step of the proposed hydrometallurgical process, extraction of metal ions from the solutions S2, S4 and S6 after the second stage of leaching was performed with

  • Hydrometallurgical recovery of platinum group metals

    Hydrometallurgical recovery of platinum group metals

    This literature review focuses on the extraction and separation processes used in the platinum group metals industry nowadays. The information available is partly limited as companies are not willing to give their secrets away. Most of the processes reviewed are meant

  • How do you separate platinum from other metals

    How do you separate platinum from other metals

    Feb 11, 2021 How do you separate platinum from other metals? Platinum Group Metal Separation Schemes. Platinum can be removed, in the absence of palladium and gold, by ion exchange if iridium is in the Ir (III) oxidation state. Palladium extraction systems based on both long chain alkyl sulphides (3) and hydroxyoximes have been reported in recent years

  • US4382067A - Solvent extraction of platinum group metals

    US4382067A - Solvent extraction of platinum group metals

    This invention relates to the separation and purification of the platinum group metals; more particularly it relates to the separation of mixtures of Pt and/or Pd from Rh and/or Ru. In more detail, the present invention relates to a process for the separation or purification of platinum group metals in which either platinum, iridium (IV) and/or palladium (II) are present in aqueous solution

  • Solvent extraction of platinum group metals - Matthey

    Solvent extraction of platinum group metals - Matthey

    Solvent extraction of platinum group metals . United States Patent 4382067 . Abstract: This invention relates to the separation and purification of the platinum group metals; more particularly it relates to the separation of mixtures of Pt and/or Pd from Rh and/or Ru. In more detail, the present invention relates to a process for the separation

  • The Properties and Applications of Platinum

    The Properties and Applications of Platinum

    Aug 21, 2020 Platinum is always found alongside other PGMs. In South Africa's Bushveld complex and a limited number of other ore bodies, PGMs occur in sufficient quantities so as to make it economical to exclusively extract these metals; whereas, at Russia's Norilsk and Canada's Sudbury deposits platinum and other PGMs are extracted as by-products of nickel and copper

  • Platinum Production Cost - How High is too High

    Platinum Production Cost - How High is too High

    Then, it can establish the site, buy all the equipment and physically extract the platinum ore. And after the mine is tapped out, the mining company may be required to rehabilitate the site to pre-mining conditions. As one can see, the platinum production costs go well beyond the mere act of pulling the metal from the ground

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