GB346463A - Improved process for the production of cyanamides of alkaline earth metals - Google Patents

Improved process for the production of cyanamides of alkaline earth metals

Info

Publication number
GB346463A
GB346463A GB39413/29A GB3941329A GB346463A GB 346463 A GB346463 A GB 346463A GB 39413/29 A GB39413/29 A GB 39413/29A GB 3941329 A GB3941329 A GB 3941329A GB 346463 A GB346463 A GB 346463A
Authority
GB
United Kingdom
Prior art keywords
cyanamides
carbon
alkaline
ammonia
production
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
GB39413/29A
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.)
CHIMIQUES POUR L IND SOC ET
Original Assignee
CHIMIQUES POUR L IND SOC ET
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 CHIMIQUES POUR L IND SOC ET filed Critical CHIMIQUES POUR L IND SOC ET
Publication of GB346463A publication Critical patent/GB346463A/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
    • C01C3/18—Calcium cyanamide
    • 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)
  • Catalysts (AREA)

Abstract

Calcium and like cyanamides are obtained by the action of ammonia or alkaline-earth carbonates or oxides admixed with carbon at temperatures up to 950 DEG C. Natural alkaline-earth carbonates may be used as calcium carbonate precipitated in the reaction of ammonia and carbon dioxide on calcium sulphate. The carbon may be in the form of wood charcoal, peat charcoal, anthracite, coke, or the like. Instead of carbon liquid or solid hydrocarbons may be added to the alkaline-earth carbonate or oxide, or gaseous hydrocarbons may be added to the ammonia gas stream. Specification 279,811, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to. Reference has been directed by the Comptroller to Specifications 277,714 and 338,023, [both in Class 1 (ii), Inorganic compounds, other than &c.].
GB39413/29A 1928-12-24 1929-12-24 Improved process for the production of cyanamides of alkaline earth metals Expired GB346463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE346463X 1928-12-24

Publications (1)

Publication Number Publication Date
GB346463A true GB346463A (en) 1931-03-24

Family

ID=6255245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39413/29A Expired GB346463A (en) 1928-12-24 1929-12-24 Improved process for the production of cyanamides of alkaline earth metals

Country Status (3)

Country Link
BE (1) BE366483A (en)
FR (1) FR687129A (en)
GB (1) GB346463A (en)

Also Published As

Publication number Publication date
FR687129A (en) 1930-08-05
BE366483A (en)

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