DE600903C - Process for preparing carbide for azotation - Google Patents

Process for preparing carbide for azotation

Info

Publication number
DE600903C
DE600903C DE1930600903D DE600903DD DE600903C DE 600903 C DE600903 C DE 600903C DE 1930600903 D DE1930600903 D DE 1930600903D DE 600903D D DE600903D D DE 600903DD DE 600903 C DE600903 C DE 600903C
Authority
DE
Germany
Prior art keywords
carbide
nitrogen
azotation
azotization
preparing carbide
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
DE1930600903D
Other languages
German (de)
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.)
BAYERISCHE STICKSTOFFWERKE AKT
Original Assignee
BAYERISCHE STICKSTOFFWERKE AKT
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 BAYERISCHE STICKSTOFFWERKE AKT filed Critical BAYERISCHE STICKSTOFFWERKE AKT
Application granted granted Critical
Publication of DE600903C publication Critical patent/DE600903C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/002—Synthesis of metal cyanides or metal cyanamides from elementary nitrogen and carbides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Description

Verfahren zur Vorbereitung von Carbid für die Azotierung Man hat in letzter Zeit mehrfach versucht, bei der Azotierung von Carbid bessere Ausbeuten dadurch zu erzielen, daß. das Carbid einer Vorbehandlung mit Stickstoff unterworfen wird. Man hat z. B. vorgeschlagen, die Carbidherstellung selbst in Stickstoffatmosphäre vorzunehmen oder das aus den Carbidöfen kommende flüssige Carbid einer Vorazotierung durch strömenden Stickstoff zu unterwerfen. Bei a11 diesen Verfahren ist ein sehr erheblicher Stickstoffaufwand notwendig, der in keinem Verhältnis zu der auf diese Weise erzielten Stickstoffaufnahme steht.Process for preparing carbide for azotization Attempted several times recently, better yields in the azotization of carbide to achieve that. the carbide is subjected to a pretreatment with nitrogen will. One has z. B. proposed the carbide production itself in a nitrogen atmosphere or the liquid carbide coming from the carbide furnaces of a pre-azotization subdue by flowing nitrogen. At a11 this procedure is a very considerable nitrogen expenditure necessary, which is out of proportion to that on this Way achieved nitrogen uptake.

Es wurde gefunden, daß man dieselben Ausbeuteverbesserungen auf viel einfacherem Wege mit sehr geringem Stickstoffaufwand dadurch erhalten kann, daß man die Abkühlung des Carbids in einer ruhenden Stickstoffatmosphäre vornimmt. Das .Verfahren wird in der Weise ausgeführt, daß man das aus dem Carbidofen kommende flüssige Carbid in mehr oder weniger luftdicht verschließbare Gefäße absticht, die vorher oder nachher mit Stickstoff, gegebenenfalls unter Druck, gefüllt werden. Das auf diese Weise erhaltene Carbid hat einen verhältnismäßig geringen Stickstoffgehalt, in der Regel etwa r bis 3 °/o, der aber genügt, die bei der vollständigen Azotierung stickstoffhaltiger Carbide beobachteten günstigen Ergebnisse ebenfalls hervorzurufen.It has been found that you can get the same yield improvements on much Easier way with very little nitrogen expenditure can be obtained in that the carbide is cooled in a static nitrogen atmosphere. That .The method is carried out in such a way that the coming from the carbide furnace liquid carbide in more or less airtight closable vessels that before or afterwards with nitrogen, optionally under pressure, are filled. The carbide obtained in this way has a relatively low nitrogen content, as a rule about 3 to 3 per cent., but this is sufficient for the complete azotization nitrogenous carbides were also observed to produce favorable results.

Claims (1)

PATENT ANSI'1tUC11: Verfahren zur Vorbereitung von Carbid für die Azotierung durch Abkühlen des Carbids in einer Stickstoffatmosphäre, dadurch gekennzeichnet, daß die Abkühlung des abgestochenen Carbids in geschlossenen Gefäßen in ruhende Stickstoffatmosphäre, gegebenenfalls unter Druck, vorgenommen wird.PATENT ANSI'1tUC11: Method of preparing carbide for the Azotization by cooling the carbide in a nitrogen atmosphere, characterized in that that the cooling of the tapped carbide in closed vessels in dormant Nitrogen atmosphere, optionally under pressure, is made.
DE1930600903D 1930-10-18 1930-10-18 Process for preparing carbide for azotation Expired DE600903C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE600903T 1930-10-18

Publications (1)

Publication Number Publication Date
DE600903C true DE600903C (en) 1934-08-03

Family

ID=6574620

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930600903D Expired DE600903C (en) 1930-10-18 1930-10-18 Process for preparing carbide for azotation

Country Status (1)

Country Link
DE (1) DE600903C (en)

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