AT111846B - Process for converting cyanates into cyanides. - Google Patents

Process for converting cyanates into cyanides.

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Publication number
AT111846B
AT111846B AT111846DA AT111846B AT 111846 B AT111846 B AT 111846B AT 111846D A AT111846D A AT 111846DA AT 111846 B AT111846 B AT 111846B
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Austria
Prior art keywords
cyanates
cyanides
converting
desc
cyanate
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German (de)
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Ig Farbenindustrie Ag
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Publication of AT111846B publication Critical patent/AT111846B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Umsetzung von Cyanaten in Cyanide. 



   Es wurde gefunden, dass sich Cyanate durch Einwirkung reduzierender Gase bei erhöhter Temperatur quantitativ in Cyanide   umsetzen lassen. Die Cyanate können hiebei   in reiner Form oder auch in Gemischen mit ändern Salzen oder Stoffen angewandt werden
Beispiel 1 :   Durch   geschmolzenes Kaliumcyanat wird bei   750- ('so lange   Wasserstoff geleitet. bis das Gas wasserfrei abgeht. Es hinterbleibt eine   Schmelze   von fast reinem Cyankalium. 



     Beispiel 2 : l'ber ein Gemenge   von   Natriul1lcyanat   und Magnesia oder (Graphit, welche als indifferente Magerungsmittel dienen, wird bei 700 ('so lange   Kohlenoxyd geleitet,   bis kein Kohlendioxyd mehr entsteht. Die Schmelze, deren Cyanat nahezu quantitativ in Cyanid umgesetzt ist. kann in an sich bekannter Weise auf   Cyannatrium   verarbeitet werden. 

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



   <Desc / Clms Page number 1>
 



  Process for converting cyanates into cyanides.



   It has been found that cyanates can be converted quantitatively into cyanides by the action of reducing gases at elevated temperatures. The cyanates can be used in pure form or in mixtures with other salts or substances
Example 1: Hydrogen is passed through molten potassium cyanate at 750- ('until the gas leaves anhydrous. A melt of almost pure potassium cyanide remains.



     Example 2: Carbon oxide is passed over a mixture of sodium cyanate and magnesia or (graphite, which serve as an inert lean agent, until no more carbon dioxide is formed. The melt, the cyanate of which is almost quantitatively converted into cyanide. can be processed on cyan sodium in a manner known per se.

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

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Umsetzung von Cyanaten in Cyanide. dadurch gekennzeichnet, dass auf Cyanate bei erhöhter Temperatur reduzierende Gase zur Einwirkung gebracht werden. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for converting cyanates into cyanides. characterized in that reducing gases are brought into action on cyanates at elevated temperature. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT111846D 1927-01-31 1928-01-04 Process for converting cyanates into cyanides. AT111846B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE111846X 1927-01-31

Publications (1)

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AT111846B true AT111846B (en) 1928-12-27

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ID=29276373

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AT111846D AT111846B (en) 1927-01-31 1928-01-04 Process for converting cyanates into cyanides.

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AT (1) AT111846B (en)

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