in vertical retorts

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  • C22B19/14
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electric arc furnace dust recycling apparatus and method

    • Patent number 9,376,732
    • Issue date Jun 28, 2016
    • EMPIRE TECHNOLOGY DEVELOPMENT LLC
    • Ezekiel Kruglick
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Reduction apparatus, reduction apparatus manufacture method, and va...

    • Patent number 8,142,710
    • Issue date Mar 27, 2012
    • MG Century Mining Corporation
    • Jiqiang Zhang
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process and apparatus for extracting zinc

    • Patent number 7,790,099
    • Issue date Sep 7, 2010
    • David Wilson Investments Pty. Ltd.
    • David Wilson
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Oven mercury retorting device

    • Patent number 5,891,216
    • Issue date Apr 6, 1999
    • Summit Valley Equipment and Engineering, Inc.
    • Charles H. Washburn
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method of making pig iron with zinc recovery

    • Patent number 5,567,225
    • Issue date Oct 22, 1996
    • Hoogovens Staal. B.V.
    • Johannes G. Bernard
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Continuous feed shaft retort appartus for recovery of non-ferrous m...

    • Patent number 5,028,034
    • Issue date Jul 2, 1991
    • Zia Patent Company
    • Norman G. Bishop
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Continuous feed shaft retort process for recovery of non-ferrous me...

    • Patent number 4,963,182
    • Issue date Oct 16, 1990
    • ZIA Technology, Inc.
    • Norman G. Bishop
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Apparatus for simultaneously separating volatile and non-volatile m...

    • Patent number 4,655,437
    • Issue date Apr 7, 1987
    • Huron Valley Steel Corp.
    • Leonard Fritz
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method and apparatus for simultaneously separating volatile and non...

    • Patent number 4,606,760
    • Issue date Aug 19, 1986
    • Huron Valley Steel Corp.
    • Leonard Fritz
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process for recovering zinc

    • Patent number 4,323,391
    • Issue date Apr 6, 1982
    • Toho Aen Kabushiki Kaisha
    • Tsuneo Honda
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process for the volatilization of zinc and/or lead from metallurgic...

    • Patent number 4,200,454
    • Issue date Apr 29, 1980
    • Metallgesellschaft AG
    • Carl-August Maelzer
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3768995

    • Patent number 3,768,995
    • Issue date Oct 30, 1973
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3271021

    • Patent number 3,271,021
    • Issue date Sep 6, 1966
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3262774

    • Patent number 3,262,774
    • Issue date Jul 26, 1966
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3198505

    • Patent number 3,198,505
    • Issue date Aug 3, 1965
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3097835

    • Patent number 3,097,835
    • Issue date Jul 16, 1963
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3033674

    • Patent number 3,033,674
    • Issue date May 8, 1962
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2931059

    • Patent number 2,931,059
    • Issue date Apr 5, 1960
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2863758

    • Patent number 2,863,758
    • Issue date Dec 9, 1958
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2536365

    • Patent number 2,536,365
    • Issue date Jan 2, 1951
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2493823

    • Patent number 2,493,823
    • Issue date Jan 10, 1950
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2457552

    • Patent number 2,457,552
    • Issue date Dec 28, 1948
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2349619

    • Patent number 2,349,619
    • Issue date May 23, 1944
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2132858

    • Patent number 2,132,858
    • Issue date Oct 11, 1938
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2126325

    • Patent number 2,126,325
    • Issue date Aug 9, 1938
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2096779

    • Patent number 2,096,779
    • Issue date Oct 26, 1937
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2067085

    • Patent number 2,067,085
    • Issue date Jan 5, 1937
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    1983025

    • Patent number 1,983,025
    • Issue date Dec 4, 1934
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    1981028

    • Patent number 1,981,028
    • Issue date Nov 20, 1934
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    1968413

    • Patent number 1,968,413
    • Issue date Jul 31, 1934
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents