GB310212A - An improved process for liquefying oxides of nitrogen - Google Patents

An improved process for liquefying oxides of nitrogen

Info

Publication number
GB310212A
GB310212A GB3254927A GB3254927A GB310212A GB 310212 A GB310212 A GB 310212A GB 3254927 A GB3254927 A GB 3254927A GB 3254927 A GB3254927 A GB 3254927A GB 310212 A GB310212 A GB 310212A
Authority
GB
United Kingdom
Prior art keywords
nitrogen
oxides
present
gases
nitric acid
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
GB3254927A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB3254927A priority Critical patent/GB310212A/en
Publication of GB310212A publication Critical patent/GB310212A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

310,212. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 2, 1927. Separating gases by liquefaction. - Oxides of nitrogen are liquefied by cooling in the presence of small amounts of anhydrous nitric acid which may contain nitrogen oxides; the liquefaction may be assisted by pressure. The acid may be added e.g., to gases obtained by burning ammonia, or it may be present in the gases to be condensed; or oxygen and wa.ter vapour may be allowed to be present in sufficient amounts to form acid. Undiluted nitrogen peroxide obtained by warming nitric acid in which nitrogen oxides have been dissolved is liquefied by cooling water at 18‹ C. when 2-4 per cent of nitric acid vapour by volume is present.
GB3254927A 1927-12-02 1927-12-02 An improved process for liquefying oxides of nitrogen Expired GB310212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3254927A GB310212A (en) 1927-12-02 1927-12-02 An improved process for liquefying oxides of nitrogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3254927A GB310212A (en) 1927-12-02 1927-12-02 An improved process for liquefying oxides of nitrogen

Publications (1)

Publication Number Publication Date
GB310212A true GB310212A (en) 1929-05-02

Family

ID=10340307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3254927A Expired GB310212A (en) 1927-12-02 1927-12-02 An improved process for liquefying oxides of nitrogen

Country Status (1)

Country Link
GB (1) GB310212A (en)

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