DE407617C - Process for the production of nitric acid from nitrous gases - Google Patents

Process for the production of nitric acid from nitrous gases

Info

Publication number
DE407617C
DE407617C DEF53571D DEF0053571D DE407617C DE 407617 C DE407617 C DE 407617C DE F53571 D DEF53571 D DE F53571D DE F0053571 D DEF0053571 D DE F0053571D DE 407617 C DE407617 C DE 407617C
Authority
DE
Germany
Prior art keywords
nitric acid
production
nitrous gases
water
nitrous
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
DEF53571D
Other languages
German (de)
Inventor
Dr Hanns Carstens
Dr Wolf Johannes Muller
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.)
Bayer AG
Original Assignee
Farbenfabriken Vorm Friedr Bayer and Co
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 Farbenfabriken Vorm Friedr Bayer and Co filed Critical Farbenfabriken Vorm Friedr Bayer and Co
Priority to DEF53571D priority Critical patent/DE407617C/en
Application granted granted Critical
Publication of DE407617C publication Critical patent/DE407617C/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)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Description

Verfahren zur Herstellung von Salpetersäure aus nitrosen Gasen. Bei Verarbeitung nitroser Gase auf w<ißrige Salpetersäure kommt man bei den bekannten Verfahren der Berieselung mit Wasser auf eine Salpetersäure, welche im praktischen Betrieb etwa 5o bis 55 Prozent enthält. Versuche von F ö r s t e r , Z. f. angew. Chemie, Band 33, 1920, S. i i 3, 122, 129 haben gezeigt, daß man so im Maximum zu einer Säure von 7oProzent kommen kann, dies jedoch unterBedingungen,welche sich impraktischen Großbetrieb nicht verwirklichen lassen, weil die Reaktionsgeschwindigkeit mit steigender Säurekonzentration stark abnimmt.Process for the production of nitric acid from nitrous gases. When processing nitrous gases to aqueous nitric acid, the known methods of sprinkling with water result in nitric acid which in practical operation contains about 50 to 55 percent. Attempts by F ö rster, f Z. Angew.. Chemie, Volume 33, 1 920, p ii 3, 122, 129 have shown that one can get so at the maximum to an acid of 7oProzent, this, however, under conditions which extends Do not allow impractical large-scale operations to be realized because the rate of reaction decreases sharply with increasing acid concentration.

Es wurde nun die Beobachtung gemacht. claß man unter Vermittlung adsorbier ender Substanzen durch Einwirken von Sauerstoff bzw. Luft und Wasser auf adsorbierte Nitrose leicht zu wesentlich höher konzentrierter Salpetersäure kommen kann.The observation was now made. one must adsorb through mediation ender substances by the action of oxygen or air and water on adsorbed Nitrose can easily lead to significantly higher concentrated nitric acid.

Beispielsweise kann bei Anwendung von Iiieselsäuregel als Adsorbens und Zugabe des nötigen Wassers als solches. bei Oxydation mit Luft eine Säure von 8o Prozent durch Austreiben in der Hitze gewonnen werden. Bei anderen Versuchen wurden Säuren bis zu 9o Prozent Gehalt an Salpetersäure erhalten.For example, when using silicic acid gel as an adsorbent and adding the necessary water as such. when oxidized with air an acid of 80 percent can be obtained by expelling in the heat. With other attempts Acids with a nitric acid content of up to 90 percent were obtained.

Man kann natürlich auch so verfahren, daß man Sauerstoff (auch in Form von Luft) mit Wasserdampf vermischt über das Adsorbat leitet oder bei der Adsorption von Nitrose und Sauerstoff enthaltenden Gasen Wasserdampf oder Wasser in entsprechenden Mengen zugibt.You can of course also proceed in such a way that oxygen (also in Form of air) mixed with water vapor passes over the adsorbate or during adsorption of nitrous and oxygen-containing gases water vapor or water in corresponding Admits quantities.

Claims (1)

PATENT-ANsPRUCH: Verfahren zur Herstellung von Salpetersäure aus nitrosen Gasen, dadurch gekennzeichnet, daß man auf nitrose Gase in Gegenwart von Adsorbentien Sauerstoff und Wasser einwirken läßt.PATENT CLAIM: Process for the production of nitric acid from nitrous Gases, characterized in that one uses nitrous gases in the presence of adsorbents Allows oxygen and water to act.
DEF53571D 1923-02-26 1923-02-27 Process for the production of nitric acid from nitrous gases Expired DE407617C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF53571D DE407617C (en) 1923-02-26 1923-02-27 Process for the production of nitric acid from nitrous gases

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE211845X 1923-02-26
DEF53571D DE407617C (en) 1923-02-26 1923-02-27 Process for the production of nitric acid from nitrous gases

Publications (1)

Publication Number Publication Date
DE407617C true DE407617C (en) 1924-12-19

Family

ID=25760974

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF53571D Expired DE407617C (en) 1923-02-26 1923-02-27 Process for the production of nitric acid from nitrous gases

Country Status (1)

Country Link
DE (1) DE407617C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756127A (en) * 1952-06-30 1956-07-24 Union Oil Co Chemical oxidation process in the adsorbed phase

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756127A (en) * 1952-06-30 1956-07-24 Union Oil Co Chemical oxidation process in the adsorbed phase

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