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GB151583A - Method of producing cyanamide from calcium cyanamide - Google Patents

Method of producing cyanamide from calcium cyanamide

Info

Publication number
GB151583A
GB151583A GB17983/20A GB1798320A GB151583A GB 151583 A GB151583 A GB 151583A GB 17983/20 A GB17983/20 A GB 17983/20A GB 1798320 A GB1798320 A GB 1798320A GB 151583 A GB151583 A GB 151583A
Authority
GB
United Kingdom
Prior art keywords
cyanamide
solution
carbon dioxide
calcium
gases
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
GB17983/20A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB151583A publication Critical patent/GB151583A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/16—Cyanamide; Salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fertilizers (AREA)

Abstract

Cyanamide practically free from dicyandiamide is obtained in solution by supplying successive quantities of calcium cyanamide to water or a cyanamide solution while supplying enough carbon dioxide to maintain the solution neutral or only slightly alkaline. By starting with a cyanamide solution, very strong solutions can be obtained. The reaction is effected at a temperature not above 70 DEG C., and the carbon dioxide is preferably supplied under pressure, being blown into the solution by nozzles; or other means of bringing the gas into intimate contact with the liquid may be employed, such as beaters; or the solution containing calcium cyanamide may be sprayed into an atmosphere of carbon dioxide. The carbon dioxide may be pure or mixed with other gases, as for instance combustion or lime kiln gases.
GB17983/20A 1919-09-19 1920-06-30 Method of producing cyanamide from calcium cyanamide Expired GB151583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE151583X 1919-09-19

Publications (1)

Publication Number Publication Date
GB151583A true GB151583A (en) 1921-06-30

Family

ID=20300244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17983/20A Expired GB151583A (en) 1919-09-19 1920-06-30 Method of producing cyanamide from calcium cyanamide

Country Status (4)

Country Link
DE (1) DE354949C (en)
FR (1) FR520633A (en)
GB (1) GB151583A (en)
NL (1) NL10536C (en)

Also Published As

Publication number Publication date
DE354949C (en) 1922-06-17
FR520633A (en) 1921-06-28
NL10536C (en)

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