TREA

using oxalic acids

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Industry

  • CPC
  • C22B3/0025
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Parent Industries

CCHEMISTRY METALLURGY C22Metallurgy C22BPRODUCTION AND REFINING OF METALS PRETREATMENT OF RAW MATERIALS C22B3/00Extraction of metal compounds from ores or concentrates by wet processes

Current Industry

C22B3/0025using oxalic acids
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for preparation of high purity, crystalline cobalt nitrate f...
    • Patent number 8,986,644
    • Issue date Mar 24, 2015
    • Wuhan Kaidi Engineering Technology Research Institute Co., Ltd.
    • Yiming Han
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Recovery of scandium, yttrium and lanthanides from zircon sand
    • Patent number 5,039,336
    • Issue date Aug 13, 1991
    • Westinghouse Electric Corp.
    • Robert J. Feuling
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process for selective extraction of contaminant elements from mixtu...
    • Patent number 5,039,496
    • Issue date Aug 13, 1991
    • Henkel Kommanditgesellschaft auf Aktien
    • Ralf Kehl
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Cobalt recovery method
    • Patent number 4,908,462
    • Issue date Mar 13, 1990
    • Starloy Industrial Co., Ltd.
    • Nobuo Ohtsuka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method of processing nuclear fuel scraps
    • Patent number 4,891,163
    • Issue date Jan 2, 1990
    • Sumitomo Metal Mining Company Limited
    • Cyuzaburo Tanaka
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Method for recovering casting refractory compositions from investme...
    • Patent number 4,815,516
    • Issue date Mar 28, 1989
    • Precision Castparts Corp.
    • David H. Sturgis
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Process for preventing the extraction of technetium and/or rhenium,...
    • Patent number 4,764,352
    • Issue date Aug 16, 1988
    • Commissariat a l'Energie Atomique
    • Andre Bathellier
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Recovery of cobalt and chromium
    • Patent number 4,608,084
    • Issue date Aug 26, 1986
    • GTE Products Corporation
    • Richard A. Scheithauer
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Recovery of cobalt
    • Patent number 4,594,230
    • Issue date Jun 10, 1986
    • GTE Products Corporation
    • Richard A. Scheithauer
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Separation of uranium from technetium in recovery of spent nuclear...
    • Patent number 4,528,165
    • Issue date Jul 9, 1985
    • The United States of America as represented by the United States Department o...
    • Horace A. Friedman
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Extraction of plutonium ions from aqueous sulfuric acid solutions w...
    • Patent number 4,442,071
    • Issue date Apr 10, 1984
    • Kernforschungszentrum Karlsruhe GmbH
    • Karl H. Lieser
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Recovery of yttrium and europium from contaminated solutions
    • Patent number 4,432,948
    • Issue date Feb 21, 1984
    • U.S. Philips Corporation
    • Herman R. Heytmeijer
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Recovery of yttrium and europium from contaminated solutions
    • Patent number 4,386,056
    • Issue date May 31, 1983
    • Westinghouse Electric Corp.
    • Herman R. Heytmeijer
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Hydrometallurgical process for recovering precious metals from anod...
    • Patent number 4,293,332
    • Issue date Oct 6, 1981
    • Institute of Nuclear Energy Research
    • Wei Ko Wang
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Purification of combustion catalysts and solid propellant compositi...
    • Patent number 4,166,045
    • Issue date Aug 28, 1979
    • United Technologies Corporation
    • Thomas P. Rudy
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method for the recovery of actinide elements from nuclear reactor w...
    • Patent number 4,162,230
    • Issue date Jul 24, 1979
    • The United States of America as represented by the United States Department o...
    • E. Philip Horwitz
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process for recovering gold
    • Patent number 4,113,467
    • Issue date Sep 12, 1978
    • Douglas S. Harrington
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Treatment of copper refinery slimes
    • Patent number 4,094,668
    • Issue date Jun 13, 1978
    • Newmont Exploration Limited
    • John C. Yannopoulos
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method for recovery of platinum and iridium from catalysts
    • Patent number 4,069,040
    • Issue date Jan 17, 1978
    • Rhone-Poulenc Industries
    • Maryvonne Thomas
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Refining of noble group metals
    • Patent number 3,979,207
    • Issue date Sep 7, 1976
    • Matthey Rustenburg Refiners (Proprietary)
    • John James MacGregor
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Extraction method for non-ferrous metals
    • Patent number 3,958,985
    • Issue date May 25, 1976
    • Chemsep Corporation
    • Steven Jon Anderson
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3840469
    • Patent number 3,840,469
    • Issue date Oct 8, 1974
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    3760060
    • Patent number 3,760,060
    • Issue date Sep 18, 1973
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3725035
    • Patent number 3,725,035
    • Issue date Apr 3, 1973
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    3127236
    • Patent number 3,127,236
    • Issue date Mar 31, 1964
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2916349
    • Patent number 2,916,349
    • Issue date Dec 8, 1959
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2759792
    • Patent number 2,759,792
    • Issue date Aug 21, 1956
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    1718616
    • Patent number 1,718,616
    • Issue date Jun 25, 1929
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents