TREA

Refining

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Industry

  • CPC
  • C22B17/06
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Parent Industries

CCHEMISTRY METALLURGY C22Metallurgy C22BPRODUCTION AND REFINING OF METALS PRETREATMENT OF RAW MATERIALS C22B17/00Obtaining cadmium

Current Industry

C22B17/06Refining
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for enhanced purification of high-purity metals
    • Patent number 6,932,852
    • Issue date Aug 23, 2005
    • Dowa Mining Co., Ltd.
    • Kishio Tayama
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Apparatus for enhanced purification of high-purity metals
    • Patent number 6,805,833
    • Issue date Oct 19, 2004
    • Dowa Mining Co., Ltd.
    • Kishio Tayama
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Extraction of impurities from structures containing mercury, cadmiu...
    • Patent number 6,514,457
    • Issue date Feb 4, 2003
    • Raytheon Company
    • David R. Rhiger
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method of forming stoichiometric II-VI compounds of high purity
    • Patent number 4,911,905
    • Issue date Mar 27, 1990
    • Texas Instruments Incorporated
    • Donald F. Weirauch
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Solids refining apparatus
    • Patent number 4,720,373
    • Issue date Jan 19, 1988
    • Research Corporation
    • Lawrence R. Holland
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Purification of Cd and Te by zone refining
    • Patent number 4,690,725
    • Issue date Sep 1, 1987
    • Cominco Ltd.
    • Roelof P. Bult
    • C30 - CRYSTAL GROWTH
  • Information Patent Grant

    Solids refining process
    • Patent number 4,584,054
    • Issue date Apr 22, 1986
    • Research Corporation
    • Lawrence R. Holland
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method and apparatus of refining crude cadmium
    • Patent number 4,077,799
    • Issue date Mar 7, 1978
    • Preussag Aktiengesellschaft Metall
    • Hans Wilhelm Wieking
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method and apparatus of refining crude cadmium
    • Patent number 4,010,937
    • Issue date Mar 8, 1977
    • Preussag Aktiengesellschaft Metall
    • Hans Wilhelm Wieking
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3577232
    • Patent number 3,577,232
    • Issue date May 4, 1971
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3449116
    • Patent number 3,449,116
    • Issue date Jun 10, 1969
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3448973
    • Patent number 3,448,973
    • Issue date Jun 10, 1969
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3449117
    • Patent number 3,449,117
    • Issue date Jun 10, 1969
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    2178763
    • Patent number 2,178,763
    • Issue date Nov 7, 1939
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2112191
    • Patent number 2,112,191
    • Issue date Mar 22, 1938
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2060453
    • Patent number 2,060,453
    • Issue date Nov 10, 1936
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2040269
    • Patent number 2,040,269
    • Issue date May 12, 1936
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    1644431
    • Patent number 1,644,431
    • Issue date Oct 4, 1927
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents