Separation of nitrogen isotopes by displacement band chromatography
Conference
·
· Sep. Sci. Technol.; (United States)
OSTI ID:6186755
A study of the separation of /sup 14/N and /sup 15/N isotopes via displacement band chromatography was conducted using sulfonated styrene-divinylbenzene resins. Starting with a feed solution of 0.5 N NH/sub 4/OH (containing 51% /sup 15/N), a band was developed that generated a concentration profile ranging from 11 to 85% /sup 15/N. The separative power and HETP (height equivalent to a theoretical plate) were found to be dependent on the resin characteristics (size, crosslinkage) and operating parameters (superficial velocity, concentration). The use of a 7/10-micrometer-size, high performance resin increased the separative power by a factor of 17 and decreased the HETP by a factor of 10, when compared to a 100/200 mesh Dowex 50W-X12 resin under similar process conditions. The HETP could further be reduced by lowering the superficial velocity and/or eluant concentration.
- Research Organization:
- MRC-MOUND, Miamisburg, OH (USA)
- OSTI ID:
- 6186755
- Report Number(s):
- CONF-871038-
- Conference Information:
- Journal Name: Sep. Sci. Technol.; (United States) Journal Volume: 23:12,13
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
CHEMICAL REACTIONS
CHROMATOGRAPHY
CROSS-LINKING
DATA
EFFICIENCY
EXPERIMENTAL DATA
INFORMATION
ION EXCHANGE CHROMATOGRAPHY
ION EXCHANGE MATERIALS
ISOTOPE SEPARATION
ISOTOPES
LIGHT NUCLEI
MATERIALS
NITROGEN 14
NITROGEN 15
NITROGEN ISOTOPES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC ION EXCHANGERS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERIZATION
POLYMERS
POLYOLEFINS
POLYSTYRENE-DVB
QUANTITY RATIO
RESINS
SEPARATION PROCESSES
SIZE
STABLE ISOTOPES
SULFONES
VELOCITY
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
CHEMICAL REACTIONS
CHROMATOGRAPHY
CROSS-LINKING
DATA
EFFICIENCY
EXPERIMENTAL DATA
INFORMATION
ION EXCHANGE CHROMATOGRAPHY
ION EXCHANGE MATERIALS
ISOTOPE SEPARATION
ISOTOPES
LIGHT NUCLEI
MATERIALS
NITROGEN 14
NITROGEN 15
NITROGEN ISOTOPES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC ION EXCHANGERS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERIZATION
POLYMERS
POLYOLEFINS
POLYSTYRENE-DVB
QUANTITY RATIO
RESINS
SEPARATION PROCESSES
SIZE
STABLE ISOTOPES
SULFONES
VELOCITY