TREA

by reduction of nitrogen oxides or nitrites with bisulfite or sulfur dioxide

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  • CPC
  • C01B21/1427
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CCHEMISTRY METALLURGY C01Inorganic chemistry C01BNON-METALLIC ELEMENTS COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C C01B21/00Nitrogen Compounds thereof

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C01B21/1427by reduction of nitrogen oxides or nitrites with bisulfite or sulfur dioxide
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Patents Grantslast 30 patents

  • Information Patent Grant

    Disulfonate process control
    • Patent number 5,015,455
    • Issue date May 14, 1991
    • Allied-Signal Inc.
    • Laszlo J. Balint
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Abatement of NO.sub.x from hydroxylamine disulfonate process
    • Patent number 4,996,036
    • Issue date Feb 26, 1991
    • Allied-Signal Inc.
    • William B. Fisher
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Hydroxylamine purification via liquid/liquid extraction
    • Patent number 4,166,842
    • Issue date Sep 4, 1979
    • Allied Chemical Corporation
    • Allen A. Tunick
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    3421855
    • Patent number 3,421,855
    • Issue date Jan 14, 1969
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    3407036
    • Patent number 3,407,036
    • Issue date Oct 22, 1968
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    3185732
    • Patent number 3,185,732
    • Issue date May 25, 1965
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    3149912
    • Patent number 3,149,912
    • Issue date Sep 22, 1964
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2845331
    • Patent number 2,845,331
    • Issue date Jul 29, 1958
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2812238
    • Patent number 2,812,238
    • Issue date Nov 5, 1957
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2785954
    • Patent number 2,785,954
    • Issue date Mar 19, 1957
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2772145
    • Patent number 2,772,145
    • Issue date Nov 27, 1956
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2752224
    • Patent number 2,752,224
    • Issue date Jun 26, 1956
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2686106
    • Patent number 2,686,106
    • Issue date Aug 10, 1954
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2677599
    • Patent number 2,677,599
    • Issue date May 4, 1954
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2555667
    • Patent number 2,555,667
    • Issue date Jun 5, 1951
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2458404
    • Patent number 2,458,404
    • Issue date Jan 4, 1949
    • C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents