CH137402A - Process for the preparation of scatterable, non-dusting calcium cyanamide. - Google Patents

Process for the preparation of scatterable, non-dusting calcium cyanamide.

Info

Publication number
CH137402A
CH137402A CH137402DA CH137402A CH 137402 A CH137402 A CH 137402A CH 137402D A CH137402D A CH 137402DA CH 137402 A CH137402 A CH 137402A
Authority
CH
Switzerland
Prior art keywords
dusting
preparation
scatterable
calcium cyanamide
treated
Prior art date
Application number
Other languages
German (de)
Inventor
Lonza Elektrizitaetswerk Basel
Emil Dr Luescher
Original Assignee
Lonza Ag
Emil Dr Luescher
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 Lonza Ag, Emil Dr Luescher filed Critical Lonza Ag
Publication of CH137402A publication Critical patent/CH137402A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C7/00—Fertilisers containing calcium or other cyanamides
    • C05C7/02—Granulation; Pelletisation; Degassing; Hydrating; Hardening; Stabilisation; Oiling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

  

  Verfahren     zitr        Darltelluno    von streubarem,     nichtstäubendem    Kalkstickstoff.    Im Hauptpatent Nr.<B>133,209</B> wird gesagt,       da.ss    man Kalkstickstoff durch     Behandlung     mit     Calciumnitrat,        we.lühes    weniger     als    4  Moleküle     Kristallwasser    enthält, oder mit       solchem        CaIciumnitrat    im Gemisch mit an  dern Salzen, zum Beispiel     Kaliumnitrat     oder     Natriumnitrat,    in eine gut streubare  und nicht stäubende Form überführen kann.  



  Es wurde gefunden, dass man ein ähn  liches Resultat erzielt, wenn man den Kalk  stickstoff nur mit Nitraten der Alkalien,  zum Beispiel mit Kalium- oder     Natriumni-          trat,    oder mit Gemischen dieser beiden  Stoffe behandelt.  



  <I>Beispiel:</I>  100 kg Kalkstickstoff wurden mit 20 kg  eines Gemisches, bestehend aus 54,3 kg     Ka-          liumnitrat    und 45,7 kg     Natriumnitrat    in  einer Trommel erwärmt und zusammengesin  tert. Es wurde ein     krümeliges,    gut streu  bares Produkt erhalten.



  Process zitr Darltelluno of scatterable, non-dusting calcium cyanamide. In the main patent no. <B> 133,209 </B> it is stated that calcium cyanamide is obtained by treating it with calcium nitrate, which contains less than 4 molecules of water of crystallization, or with such calcium nitrate mixed with other salts, for example potassium nitrate or Sodium nitrate, in a readily dispersible and non-dusting form.



  It has been found that a similar result is obtained if the calcium carbonate is treated only with nitrates of alkalis, for example with potassium or sodium nitrate, or with mixtures of these two substances.



  <I> Example: </I> 100 kg of calcium cyanamide were heated in a drum with 20 kg of a mixture consisting of 54.3 kg of potassium nitrate and 45.7 kg of sodium nitrate and sintered together. A crumbly, easily scatterable product was obtained.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von streuba rem und nicht stäubendem Kalkstickstoff, dadurch gekennzeichnet, dass man ihn mit Nitraten der Alkalien behandelt. UNTERANSPRÜCHE: 1. Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass man den Kalk stickstoff mit. Kaliumnitrat behandelt. Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass man .den Kalk- stickstoff mit Natriumnitrat behandelt. PATENT CLAIM: Process for the preparation of scattered and non-dusting calcium cyanamide, characterized in that it is treated with nitrates of alkalis. SUBClaims: 1. Method according to claim, characterized in that the lime nitrogen with. Potassium nitrate treated. Process according to patent claim, characterized in that the lime nitrogen is treated with sodium nitrate. Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass man den Kalk stoff mit Gemischen von Kalium- und @Tatriumnitrat behandelt. Process according to claim, characterized in that the lime is treated with mixtures of potassium and sodium nitrate.
CH137402D 1927-12-22 1927-12-22 Process for the preparation of scatterable, non-dusting calcium cyanamide. CH137402A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH137402T 1927-12-22
CH133209T 1927-12-22

Publications (1)

Publication Number Publication Date
CH137402A true CH137402A (en) 1929-12-31

Family

ID=25712037

Family Applications (1)

Application Number Title Priority Date Filing Date
CH137402D CH137402A (en) 1927-12-22 1927-12-22 Process for the preparation of scatterable, non-dusting calcium cyanamide.

Country Status (1)

Country Link
CH (1) CH137402A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242249B (en) * 1961-07-14 1967-06-15 Wintershall Ag Process for the production of granulated mixed fertilizers from calcium cyanamide and potassium salt
DE1592809B1 (en) * 1963-03-06 1971-12-30 Wintershall Ag Process for the production of granulated mixed fertilizers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242249B (en) * 1961-07-14 1967-06-15 Wintershall Ag Process for the production of granulated mixed fertilizers from calcium cyanamide and potassium salt
DE1592809B1 (en) * 1963-03-06 1971-12-30 Wintershall Ag Process for the production of granulated mixed fertilizers

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