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by reducing in gaseous or solid state

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Industry

  • CPC
  • C22B15/0021
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Parent Industries

CCHEMISTRY METALLURGY C22Metallurgy C22BPRODUCTION AND REFINING OF METALS PRETREATMENT OF RAW MATERIALS C22B15/00Obtaining copper

Current Industry

C22B15/0021by reducing in gaseous or solid state
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Bio-reduction of metal ores integrated with biomass pyrolysis
    • Patent number 11,753,698
    • Issue date Sep 12, 2023
    • Carbon Technology Holdings, LLC
    • James A. Mennell
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Method of producing copper powder and copper powder
    • Patent number 7,534,283
    • Issue date May 19, 2009
    • Dowa Electronics Materials., Ltd.
    • Tomoya Yamada
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method for direct metal making by microwave energy
    • Patent number 6,277,168
    • Issue date Aug 21, 2001
    • Xiaodi Huang
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Process for recovering metals from solution through solvent extract...
    • Patent number 4,561,887
    • Issue date Dec 31, 1985
    • Sociedad Minera Pudahuel Ltda., C.P.A.
    • Esteban M. Domic
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process for thermal-activation of chalcopyrite-pyrite concentrates
    • Patent number 4,201,748
    • Issue date May 6, 1980
    • Cominco Ltd.
    • Godefridus M. Swinkels
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Hydrometallurgical recovery of metal values
    • Patent number 4,200,455
    • Issue date Apr 29, 1980
    • UOP Inc.
    • James A. Bradbury
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    High temperature reduction of copper salts
    • Patent number 4,192,676
    • Issue date Mar 11, 1980
    • Cyprus Metallurgical Processes Corporation
    • James E. Reynolds
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Hydrometallurgical recovery of metal values
    • Patent number 4,069,294
    • Issue date Jan 17, 1978
    • UOP Inc.
    • Laurence G. Stevens
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Ore treatment process
    • Patent number 4,057,422
    • Issue date Nov 8, 1977
    • Rollan Swanson
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Recovery of copper and zinc as sulfides from copper-iron sulfides
    • Patent number 4,049,770
    • Issue date Sep 20, 1977
    • Sherritt Gordon Mines Limited
    • Godefridus Maria Swinkels
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Fluidized hydrogen reduction process for the recovery of copper
    • Patent number 4,039,324
    • Issue date Aug 2, 1977
    • Cyprus Metallurgical Processes Corporation
    • Frank M. Stephens
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Production of copper and sulfur from copper-iron sulfides
    • Patent number 3,964,901
    • Issue date Jun 22, 1976
    • Sherritt Gordon Mines Limited
    • Godefridus Maria Swinkels
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Extraction of zinc and lead from their sulfides
    • Patent number 3,957,503
    • Issue date May 18, 1976
    • Rollan Swanson
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Extraction of copper from copper sulfides
    • Patent number 3,933,475
    • Issue date Jan 20, 1976
    • Rollan Swanson
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Use of scavenger in recovery of metal values
    • Patent number 3,932,170
    • Issue date Jan 13, 1976
    • The United States of America as represented by the Secretary of the Interior
    • Ishwarlal D. Shah
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3929468
    • Patent number 3,929,468
    • Issue date Dec 30, 1975
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3918962
    • Patent number 3,918,962
    • Issue date Nov 11, 1975
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3894927
    • Patent number 3,894,927
    • Issue date Jul 15, 1975
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3880650
    • Patent number 3,880,650
    • Issue date Apr 29, 1975
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3876748
    • Patent number 3,876,748
    • Issue date Apr 8, 1975
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3855384
    • Patent number 3,855,384
    • Issue date Dec 17, 1974
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3802868
    • Patent number 3,802,868
    • Issue date Apr 9, 1974
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3701648
    • Patent number 3,701,648
    • Issue date Oct 31, 1972
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3622304
    • Patent number 3,622,304
    • Issue date Nov 23, 1971
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3589892
    • Patent number 3,589,892
    • Issue date Jun 29, 1971
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    3383198
    • Patent number 3,383,198
    • Issue date May 14, 1968
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    2758020
    • Patent number 2,758,020
    • Issue date Aug 7, 1956
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2663631
    • Patent number 2,663,631
    • Issue date Dec 22, 1953
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    2045226
    • Patent number 2,045,226
    • Issue date Jun 23, 1936
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    1770866
    • Patent number 1,770,866
    • Issue date Jul 15, 1930
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents