TREA

National Institute for Metallurgy

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  • Johannesburg, ZA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Leaching of sulphidic mattes containing non-ferrous metals and iron
    • Patent number 4,431,613
    • Issue date Feb 14, 1984
    • National Institute for Metallurgy
    • Bernard Verbaan
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Selective imidazole ion exchange resins
    • Patent number 4,401,629
    • Issue date Aug 30, 1983
    • National Institute for Metallurgy
    • Robert D. Hancock
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Leaching of zinc containing sulphide minerals
    • Patent number 4,330,379
    • Issue date May 18, 1982
    • National Institute for Metallurgy
    • Bernard Verbaan
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Control of electrical arc furnaces
    • Patent number 4,296,269
    • Issue date Oct 20, 1981
    • National Institute for Metallurgy
    • Alistair B. Stewart
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Leaching process for zinc sulphide containing materials
    • Patent number 4,274,931
    • Issue date Jun 23, 1981
    • National Institute for Metallurgy
    • Bernard Verbaan
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Magnetic separators
    • Patent number 4,260,477
    • Issue date Apr 7, 1981
    • National Institute of Metallurgy
    • Ian J. Corrans
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Arc furnace electrode slip monitoring device
    • Patent number 4,227,030
    • Issue date Oct 7, 1980
    • National Institute for Metallurgy
    • Heinz W. H. Osterwold
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Selective ion exchange resins with pyridyl-imidazolyl chelating fun...
    • Patent number 4,202,944
    • Issue date May 13, 1980
    • National Institute for Metallurgy
    • Robert D. Hancock
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process for the treatment of platinum group metals and gold
    • Patent number 4,188,362
    • Issue date Feb 12, 1980
    • National Institute for Metallurgy
    • Roderick I. Edwards
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Recovery and purification of rhodium
    • Patent number 4,155,750
    • Issue date May 22, 1979
    • National Institute for Metallurgy
    • Roderick I. Edwards
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Recovery and purification of iridium
    • Patent number 4,130,625
    • Issue date Dec 19, 1978
    • The National Institute for Metallurgy
    • Ann P. Evers
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Separation and purification of platinum and palladium
    • Patent number 4,105,742
    • Issue date Aug 8, 1978
    • The National Institute for Metallurgy
    • Roderick I. Edwards
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Separation and purification of ruthenium
    • Patent number 4,105,442
    • Issue date Aug 8, 1978
    • The National Institute for Metallurgy
    • Monika M. Fieberg
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Determination of mineral concentrations in slurries thereof
    • Patent number 4,090,073
    • Issue date May 16, 1978
    • National Institute for Metallurgy
    • Johan P. R. De Villiers
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Separation of platinum group metals and gold
    • Patent number 3,985,552
    • Issue date Oct 12, 1976
    • National Institute for Metallurgy
    • Roderick Ivan Edwards
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Contacting liquids and solids in countercurrent
    • Patent number 3,957,635
    • Issue date May 18, 1976
    • National Institute of Metallurgy
    • Francis Louis Dirk Cloete
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL