DE443455C - Process for the production of potassium cyanide or potassium sodium cyanide from calcium cyanamide - Google Patents

Process for the production of potassium cyanide or potassium sodium cyanide from calcium cyanamide

Info

Publication number
DE443455C
DE443455C DED42791D DED0042791D DE443455C DE 443455 C DE443455 C DE 443455C DE D42791 D DED42791 D DE D42791D DE D0042791 D DED0042791 D DE D0042791D DE 443455 C DE443455 C DE 443455C
Authority
DE
Germany
Prior art keywords
potassium
cyanide
calcium cyanamide
production
sodium
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
DED42791D
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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
Priority claimed from DED39454D external-priority patent/DE442966C/en
Application filed by Degussa GmbH filed Critical Degussa GmbH
Priority to DED42791D priority Critical patent/DE443455C/en
Application granted granted Critical
Publication of DE443455C publication Critical patent/DE443455C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/08—Simple or complex cyanides of metals
    • C01C3/10—Simple alkali metal cyanides

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Herstellung von Kaliumcyanid oder Kaliumnatriumcyanid aus Kalkstickstoff. Durch Patent 442 966 ist ein Verfahren geschützt, gemäß welchem aus durch Schmelzen von Kalkstickstoff mit Kochsalz enthaltenden Rohschmelzen handelsfähiges. Cyannatriusn gewonnen wird.Process for the production of potassium cyanide or potassium sodium cyanide from calcium cyanamide. Patent 442,966 protects a method according to which from crude melts containing calcium cyanamide with table salt that can be sold. Cyannatriusn is obtained.

Weitere Untersuchungen haben ergeben, daß man das Verfahren des Hauptpatentes auch anwenden kann auf Rohcyanide, welche durch Schmelzen von Kalkstickstoff mit Chlorkalium oder Gemischen von Chlorkalium und Chlornatrium erhalten werden.Further investigations have shown that the process of the main patent can also be used on raw cyanide, which is produced by melting calcium cyanamide with Potassium chloride or mixtures of potassium chloride and sodium chloride can be obtained.

Wie gefunden wurde, erhält man durch Konzentrieren der Lösungen derartiger Schmelzen unter vorausgehender oder gleichzeitiger Ausfällung des Kalks mit Alkalisalzen (Kalium- oder Natriumsalzen oder Gemischen beider), deren Säuren mit Kalk schwer lösliche oder unlösliche Verbindungen zu bilden vermögen, Laugen, welche praktisch nur noch Kaliumcyanid bzw. Kaliumnatriumcyanid enthalten. Die Arbeitsweise entspricht dem im Hauptpatent beschriebenen Verfahren.It has been found that such solutions are obtained by concentrating the solutions Melting with preceding or simultaneous precipitation of the lime with alkali salts (Potassium or sodium salts or mixtures of both), their acids with lime difficult Can form soluble or insoluble compounds, alkalis, which are practical only contain potassium cyanide or potassium sodium cyanide. The way of working corresponds the process described in the main patent.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Kaliumcyanid oder Kaliumnatriumcyanid aus Kalkstickstoff gemäß Patent 442 966, dadurch gekennzeichnet, daß man den Kalkstickstoff anstatt mit Chlornatrium mit Chlorkalium oder Chlorkalium und Chlornatrium schmilzt, das Schmelzgut in Wasser löst und die erhaltenen Laugen unter vorausgehender oder gleichzeitiger Ausfällung des Kalks mit Alkalisalzen, deren Säuren mit Kalk schwer lösliche oder unlösliche Verbindungen zu bilden vermögen, bis zur Sättigung an Cyanid konzentriert.PATENT CLAIM: Process for the production of potassium cyanide or potassium sodium cyanide from calcium cyanamide according to patent 442,966, characterized in that the calcium cyanamide instead of sodium chloride, it melts with potassium chloride or potassium chloride and sodium chloride, the melting material dissolves in water and the alkalis obtained under previous or Simultaneous precipitation of the lime with alkali salts, the acids of which are difficult with lime Able to form soluble or insoluble compounds, up to saturation of cyanide concentrated.
DED42791D 1921-04-05 1922-11-24 Process for the production of potassium cyanide or potassium sodium cyanide from calcium cyanamide Expired DE443455C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED42791D DE443455C (en) 1921-04-05 1922-11-24 Process for the production of potassium cyanide or potassium sodium cyanide from calcium cyanamide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED39454D DE442966C (en) 1921-04-05 1921-04-05 Process for the production of sodium cyanide from calcium cyanamide
DED42791D DE443455C (en) 1921-04-05 1922-11-24 Process for the production of potassium cyanide or potassium sodium cyanide from calcium cyanamide

Publications (1)

Publication Number Publication Date
DE443455C true DE443455C (en) 1927-04-28

Family

ID=25971461

Family Applications (1)

Application Number Title Priority Date Filing Date
DED42791D Expired DE443455C (en) 1921-04-05 1922-11-24 Process for the production of potassium cyanide or potassium sodium cyanide from calcium cyanamide

Country Status (1)

Country Link
DE (1) DE443455C (en)

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