GB346463A - Improved process for the production of cyanamides of alkaline earth metals - Google Patents
Improved process for the production of cyanamides of alkaline earth metalsInfo
- 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
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.].
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) |
-
0
- BE BE366483D patent/BE366483A/xx unknown
-
1929
- 1929-12-23 FR FR687129D patent/FR687129A/en not_active Expired
- 1929-12-24 GB GB39413/29A patent/GB346463A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR687129A (en) | 1930-08-05 |
BE366483A (en) |
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