AT140566B - Process for extracting air components with a higher boiling point than oxygen - Google Patents

Process for extracting air components with a higher boiling point than oxygen

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Publication number
AT140566B
AT140566B AT140566DA AT140566B AT 140566 B AT140566 B AT 140566B AT 140566D A AT140566D A AT 140566DA AT 140566 B AT140566 B AT 140566B
Authority
AT
Austria
Prior art keywords
oxygen
boiling point
higher boiling
air components
extracting air
Prior art date
Application number
Other languages
German (de)
Original Assignee
Linde Eismasch 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 Linde Eismasch Ag filed Critical Linde Eismasch Ag
Application granted granted Critical
Publication of AT140566B publication Critical patent/AT140566B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Gewinnung der   LufthestandteHe   mit höherem   Siedepunkt   als Sauerstoff. 
 EMI1.1 
 anlagen gewonnen werden, dass aus diesem Sauerstoff die zusammen mit den Edelgasen angereicherten Kohlenwasserstoffe entfernt werden und das iibrigbleibende Gemisch von Sauerstoff und Krypton 
 EMI1.2 
 durch Rektifikation traten überraschenderweise Schwierigkeiten auf. 



   Es wurde gefunden, dass diese Schwierigkeiten verschwinden, wenn die Rektifikation des SauerstoffKrypton-Gemisches unter erhöhtem Druck, insbesondere unter Drücken von mehr als 1'7 alu, durch-   geführt wird.   Dieses Ergebnis war insofern nicht zu erwarten, als im allgemeinen Rektifikationen mit wachsendem Druck infolge der   Annäherung der Gleichgewichtskurven sich   immer schwieriger durchführen lassen. Der Grund für die günstige Wirkung der Druckerhöhung in diesem Falle diirfte darin zu suchen sein, dass bei   Atmosphärendruck   Krypton und Sauerstoff nicht mehr unbegrenzt im flüssigen Zustand miteinander mischbar sind, sondern bei höheren Kryptonkonzentrationen das Edelgas sich zum Teil in fester Form ausscheidet.

   Bei höheren Drücken bilden dagegen Krypton und Sauerstoff eine lückenlose Mischungsreihe, die auch bei kryptonreichen   Gemischen   flüssig bleibt. 



   PATENT-ANSPRÜCHE :
1. Verfahren zur Gewinnung der Luftbestandteile mit   höherem   Siedepunkt als Sauerstoff nach Stammpatent Nr. 134751, dadurch gekennzeichnet, dass die Zerlegung des Sauerstoff-Krypton-Gemisches durch Rektifikation unter erhöhtem Druck durchgeführt wird. 

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



   <Desc / Clms Page number 1>
 



  Process for the extraction of the air residue with a higher boiling point than oxygen.
 EMI1.1
 systems are obtained so that the hydrocarbons enriched together with the noble gases are removed from this oxygen and the remaining mixture of oxygen and krypton
 EMI1.2
 surprisingly, difficulties arose from rectification.



   It has been found that these difficulties disappear if the rectification of the oxygen-krypton mixture is carried out under increased pressure, in particular under pressures of more than 17 aluminum. This result was not to be expected insofar as rectifications are generally more difficult to carry out with increasing pressure as a result of the convergence of the equilibrium curves. The reason for the favorable effect of the pressure increase in this case is likely to be that at atmospheric pressure krypton and oxygen are no longer infinitely miscible in the liquid state, but at higher krypton concentrations the noble gas is partly precipitated in solid form.

   At higher pressures, on the other hand, krypton and oxygen form a complete series of mixtures that remain liquid even with mixtures that are rich in krypton.



   PATENT CLAIMS:
1. Process for obtaining the air components with a higher boiling point than oxygen according to parent patent no. 134751, characterized in that the decomposition of the oxygen-krypton mixture is carried out by rectification under increased pressure.

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

 

Claims (1)

2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Rektifikation unter Drücken von mehr als 1-7 (il (t durehgeführt wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. The method according to claim 1, characterized in that the rectification is performed under pressures of more than 1-7 (il (t). ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT140566D 1931-11-14 1934-05-05 Process for extracting air components with a higher boiling point than oxygen AT140566B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE168834X 1931-11-14
DE140566X 1933-05-13

Publications (1)

Publication Number Publication Date
AT140566B true AT140566B (en) 1935-02-11

Family

ID=29403353

Family Applications (1)

Application Number Title Priority Date Filing Date
AT140566D AT140566B (en) 1931-11-14 1934-05-05 Process for extracting air components with a higher boiling point than oxygen

Country Status (1)

Country Link
AT (1) AT140566B (en)

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