GB569687A - Improved process for absorbing nitrogen oxides - Google Patents

Improved process for absorbing nitrogen oxides

Info

Publication number
GB569687A
GB569687A GB1145643A GB1145643A GB569687A GB 569687 A GB569687 A GB 569687A GB 1145643 A GB1145643 A GB 1145643A GB 1145643 A GB1145643 A GB 1145643A GB 569687 A GB569687 A GB 569687A
Authority
GB
United Kingdom
Prior art keywords
stages
nitrogen oxides
acid
per cent
absorbing nitrogen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1145643A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1145643A priority Critical patent/GB569687A/en
Publication of GB569687A publication Critical patent/GB569687A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

569,687. Nitric acid. KALOUS, M. J. July 14, 1943, No. 11456. [Class 1 (ii)] In absorbing nitrogen oxides contained in gases by passage under a pressure not exceeding nine atmospheres in progressive stages in contact with nitric acid of decreasing strength from, say 60 per cent to very weak acid or water, a temperature of between 40‹ C. and 100‹ C. is employed in one or more stages where the acid strength is not more than 40 per cent whilst in other stages in which the acid strength is not greater than 40 per cent, the temperature is below 40‹ C. The stages employing the higher and lower temperature may alternate.
GB1145643A 1943-07-14 1943-07-14 Improved process for absorbing nitrogen oxides Expired GB569687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1145643A GB569687A (en) 1943-07-14 1943-07-14 Improved process for absorbing nitrogen oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1145643A GB569687A (en) 1943-07-14 1943-07-14 Improved process for absorbing nitrogen oxides

Publications (1)

Publication Number Publication Date
GB569687A true GB569687A (en) 1945-06-05

Family

ID=9986587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1145643A Expired GB569687A (en) 1943-07-14 1943-07-14 Improved process for absorbing nitrogen oxides

Country Status (1)

Country Link
GB (1) GB569687A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399965A (en) * 1963-09-11 1968-09-03 Pullman Inc Production of 68 to 70% nitric acid
US3658472A (en) * 1968-07-01 1972-04-25 Ugine Kuhlmann Manufacture of nitric acid
US4024219A (en) * 1974-08-21 1977-05-17 Mitsubishi Jukogyo Kabushiki Kaisha Process for removing nitrogen oxide from a waste gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399965A (en) * 1963-09-11 1968-09-03 Pullman Inc Production of 68 to 70% nitric acid
US3658472A (en) * 1968-07-01 1972-04-25 Ugine Kuhlmann Manufacture of nitric acid
US4024219A (en) * 1974-08-21 1977-05-17 Mitsubishi Jukogyo Kabushiki Kaisha Process for removing nitrogen oxide from a waste gas

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