GB1141483A - Process and equipment for preparing 14c-labelled alkali metal cyanides - Google Patents
Process and equipment for preparing 14c-labelled alkali metal cyanidesInfo
- Publication number
- GB1141483A GB1141483A GB3960466A GB3960466A GB1141483A GB 1141483 A GB1141483 A GB 1141483A GB 3960466 A GB3960466 A GB 3960466A GB 3960466 A GB3960466 A GB 3960466A GB 1141483 A GB1141483 A GB 1141483A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali metal
- hcn
- solution
- labelled
- isotope
- 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
- C01C3/08—Simple or complex cyanides of metals
- C01C3/10—Simple alkali metal cyanides
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21H—OBTAINING ENERGY FROM RADIOACTIVE SOURCES; APPLICATIONS OF RADIATION FROM RADIOACTIVE SOURCES, NOT OTHERWISE PROVIDED FOR; UTILISING COSMIC RADIATION
- G21H5/00—Applications of radiation from radioactive sources or arrangements therefor, not otherwise provided for
- G21H5/02—Applications of radiation from radioactive sources or arrangements therefor, not otherwise provided for as tracers
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,141,483. Radio-active compounds. MEDIMPEX GYOGYSZERKULKERESKEDELMI VALLALAT. 5 Sept., 1966, No. 39604/66. Heading G6R. An alkali metal cyanide labelled with the C 14 isotope is prepared by decomposing barium carbonate containing the C 14 isotope by heating in a hydrogen stream at a temperature exceeding 720‹ C. in the presence of SiO 2 and/or GeO 2 , converting the carbon oxides formed to methane, catalytically reacting the methane with hydrogen and ammonia to form HCN, absorbing the HCN in an alcoholic alkali metal hydroxide solution, evaporating the solution, and extracting alkali metal cyanide from the residue with liquid ammonia. The process may be operated continuously with nearly quantitative yields. Suitable apparatus comprises a barium carbonate decomposition tube leading to a tube containing nickel catalyst for converting the CO 2 to CH 4 ; water is removed in a cooled trap and the gas then led through liquid ammonia, the resulting gas mixture being passed through a tube containing platinum catalyst to form HCN; the absorption of HCN, evaporation of the solution, and extraction of the residue are all carried out in the same vessel. A pressure regulator is connected to the initial decomposition tube.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE687350 | 1966-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1141483A true GB1141483A (en) | 1969-01-29 |
Family
ID=3849418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3960466A Expired GB1141483A (en) | 1966-09-23 | 1966-09-05 | Process and equipment for preparing 14c-labelled alkali metal cyanides |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE687350A (en) |
| GB (1) | GB1141483A (en) |
-
1966
- 1966-09-05 GB GB3960466A patent/GB1141483A/en not_active Expired
- 1966-09-23 BE BE687350D patent/BE687350A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE687350A (en) | 1967-03-01 |
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