Published May 13, 1980
| Version v1
Patent
Enrichment of nitrogen isotopes by induced isomerization of isocyanides
Creators
Description
The essentially monochromatic infrared radiation from a laser device with a frequency coincident with a vibrational absorption band of an isocyanide, for example, methyl isocyanide (CH3NC), leads to isomerization to the corresponding nitrile, in this example, acetonitrile (Ch3CN). This isomerization is accomplished isotopically selectively for vibrational bands which exhibit an isotope shift. As a consequence, the enrichment and separation of nitrogen or carbon isotopes may be accomplished
Availability note (English)
U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.Additional details
Additional titles
- Augmented title (English)
- Patent
Publishing Information
- Imprint Pagination
- v p.
- IPC:
- Int. Cl.B01D 59/00.
- IPC
- Int. Cl.B01D 59/00.
- Patent number
- US patent document 4,202,741/A/
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 13672062
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- CARBON DIOXIDE LASERS; CARBON ISOTOPES; CARBON MONOXIDE LASERS; CARBON 12; CARBON 13; CYANIDES; INFRARED RADIATION; ISOMERIZATION; ISOTOPE SEPARATION; LASER ISOTOPE SEPARATION; NEODYMIUM LASERS; NITRILES; NITROGEN ISOTOPES; NITROGEN 14; NITROGEN 15; SPECTRAL SHIFT
- Descriptors DEC
- AMPLIFIERS; CHEMICAL REACTIONS; ELECTROMAGNETIC RADIATION; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; GAS LASERS; ISOTOPES; LASERS; LIGHT NUCLEI; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; RADIATIONS; SEPARATION PROCESSES; SOLID STATE LASERS; STABLE ISOTOPES