AT53148B - Process for the preparation of concentrated nitric acid. - Google Patents

Process for the preparation of concentrated nitric acid.

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Publication number
AT53148B
AT53148B AT53148DA AT53148B AT 53148 B AT53148 B AT 53148B AT 53148D A AT53148D A AT 53148DA AT 53148 B AT53148 B AT 53148B
Authority
AT
Austria
Prior art keywords
nitric acid
preparation
concentrated nitric
oxygen
peroxide
Prior art date
Application number
Other languages
German (de)
Original Assignee
Le Nitrogene S A
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 Le Nitrogene S A filed Critical Le Nitrogene S A
Application granted granted Critical
Publication of AT53148B publication Critical patent/AT53148B/en

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  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung konzentrierter Salpetersäure. 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 
 EMI1.4 
 
 EMI1.5 
 
 EMI1.6 
 das Stickoxyd nach und nach in Stickstoffperoxyd : 
 EMI1.7 
 so dass solcherart alles Peroxyd   allmählich   in Salpetersäure übergeführt werden kann. Dieselbe ist aber notwendigerweise-selbst wenn man versuchen würde, die theoretische Wassermenge zu   verwenden-verdünnt,   da das sauerstoffhaltige Gas, welches man in dem Gemenge zirkulieren lassen muss,   bekanntermassen   stets dahin wirkt, die Salpetersäure, ohne Rücksicht auf ihre anfängliche Konzentration, auf eine solche von   600/u zurÜck-   zuführen. 



   Der vorliegenden Erfindung gemäss gelingt es nun reine, konzentrierte Salpetersäure in folgender Weise darzustellen :
Man giesst flüssiges Stickstoffperoxyd in einen mit Rührwerk versehenen Autoklaven und setzt   allmählich   die theoretisch erforderliche Menge Wasser, d. h. ein Molekül Wasser 
 EMI1.8 
 Autoklaven Sauerstoff unter Druck eingeführt wird, bis keine Absorption desselben mehr erfolgt. Das sich hiebei ergebende Produkt ist rote rauchende Salpetersäure von   mehr als   
 EMI1.9 
 



     Dieses Verfahren   kann vorteilhaft auch dann Anwendung finden, wenn das Stickstoffperoxyd nicht im flüssigen Zustande, sondern von porösem Material, wie llolzkohle, absorbiert vorliegt. Hiebei ergibt sich der Vorteil, dass der Druck des anzuwendenden Sauerstoffes verringert werden kann. 



   PATENT-ANSPRÜ('HE :
1. Verfahren zur   Darstellung von Salpetersäure von   sehr hohem Konzentrationsgrade, 
 EMI1.10 
 Sauerstoff unter Druck behandelt wird. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of concentrated nitric acid.
 EMI1.1
 
 EMI1.2
 
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 the nitric oxide gradually into nitric peroxide:
 EMI1.7
 so that in this way all peroxide can gradually be converted into nitric acid. But it is necessarily - even if one were to try to use the theoretical amount of water - diluted, since the oxygen-containing gas, which must be allowed to circulate in the mixture, is known to always have an effect on nitric acid, regardless of its initial concentration return those of 600 / u.



   According to the present invention, pure, concentrated nitric acid can now be produced in the following way:
Liquid nitrogen peroxide is poured into an autoclave equipped with a stirrer and gradually the theoretically required amount of water is added; H. a molecule of water
 EMI1.8
 Autoclave oxygen is introduced under pressure until no more absorption of the same occurs. The resulting product is red fuming nitric acid of more than
 EMI1.9
 



     This method can also be used advantageously when the nitrogen peroxide is not in the liquid state but is absorbed by porous material such as charcoal. This has the advantage that the pressure of the oxygen to be used can be reduced.



   PATENT CLAIM ('HE:
1. Process for the preparation of nitric acid of very high degrees of concentration,
 EMI1.10
 Oxygen is treated under pressure.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das als Ausgangsmaterial dienende Stickstoffperoxyd von einem porösen Material, wie Holzkohle, absorbiert zur Anwendung gelangt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. The method according to claim 1, characterized in that the nitrogen peroxide serving as the starting material is used absorbed by a porous material such as charcoal. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT53148D 1910-01-06 1911-01-06 Process for the preparation of concentrated nitric acid. AT53148B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH53148X 1910-01-06

Publications (1)

Publication Number Publication Date
AT53148B true AT53148B (en) 1912-04-25

Family

ID=30121089

Family Applications (1)

Application Number Title Priority Date Filing Date
AT53148D AT53148B (en) 1910-01-06 1911-01-06 Process for the preparation of concentrated nitric acid.

Country Status (1)

Country Link
AT (1) AT53148B (en)

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