AT79301B - Process for the production of ammonia from cyanamide and its salts. - Google Patents

Process for the production of ammonia from cyanamide and its salts.

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Publication number
AT79301B
AT79301B AT79301DA AT79301B AT 79301 B AT79301 B AT 79301B AT 79301D A AT79301D A AT 79301DA AT 79301 B AT79301 B AT 79301B
Authority
AT
Austria
Prior art keywords
salts
cyanamide
sodium
water
added
Prior art date
Application number
Other languages
German (de)
Original Assignee
It Per Il Carburo Di Calcio So
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 It Per Il Carburo Di Calcio So filed Critical It Per Il Carburo Di Calcio So
Application granted granted Critical
Publication of AT79301B publication Critical patent/AT79301B/en

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  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 




   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2


 

Claims (1)

EMI2.1 Kalkstickstoff, durch Erhitzen mit Wasser oder Dampf und Alkalihydrat oder Karbonat, untet Druck, dadurch gekennzeichnet, dass von den genannten Stoffen nur geringe Mengen, die lediglich eine Kontaktwirkung ausüben, zugesetzt werden. EMI2.1 Calcium cyanamide, by heating with water or steam and alkali hydrate or carbonate, under pressure, characterized in that only small amounts of the substances mentioned, which only have a contact effect, are added. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass den Cyanamidsalzen kleine Mengen Chlornatrium oder-kalium oder schwefelsaures Natron oder Kali oder andere Salze dieser Alkalien zugesetzt werden. 2. The method according to claim 1, characterized in that the cyanamide salts small amounts of sodium or potassium chloride or sodium sulphate or potassium or other salts of these alkalis are added. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Cyanamidsalze-anstatt mit Wasser als solchem-mit Wässern vermischt werden, die lösliche Natron-und Kalisalze enthalten, wie z. B. mit Mutterlaugen gewisser gewerblicher Betriebe, Solwässern, Meerwasser und dgl. 3. The method according to claim 1, characterized in that the cyanamide salts - instead of with water as such - are mixed with waters containing soluble sodium and potassium salts, such as. B. with mother liquors from certain commercial operations, salt water, sea water and the like. 4. Verfahren nach Anspruch 2 und 3, dadurch gekennzeichnet, dass ausser Chlornatrium oder-kalium auch kohlensaures Ammonium zugesetzt wird. 4. The method according to claim 2 and 3, characterized in that in addition to sodium or potassium chloride, carbonate of ammonium is also added. 5. Verfahren nach Anspruch 2 und 3, dadurch gekennzeichnet, dass die Cyanamidmischung mit Chlornatrium vor dem Destillieren zwecks Erzielung von Ammoniak mit Ammoniakgas und Kohlensäureanhydrid bei 40 bis 600 und unter einer bis zwei Atmosphären Druck behandelt wird. 5. The method according to claim 2 and 3, characterized in that the cyanamide mixture is treated with sodium chloride prior to distillation to obtain ammonia with ammonia gas and carbonic anhydride at 40 to 600 and under one to two atmospheres pressure.
AT79301D 1914-02-18 1914-02-18 Process for the production of ammonia from cyanamide and its salts. AT79301B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT79301T 1914-02-18

Publications (1)

Publication Number Publication Date
AT79301B true AT79301B (en) 1919-12-10

Family

ID=3600823

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79301D AT79301B (en) 1914-02-18 1914-02-18 Process for the production of ammonia from cyanamide and its salts.

Country Status (1)

Country Link
AT (1) AT79301B (en)

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