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Separation of isotopes of nitrogen and oxygen by low temperature distillation of nitrogen oxide

Journal Article:

Abstract

In general, the distillation parameters, such as the number of theoretical plate (NTP) and the height equivalent to a theoretical plate (HETP), can be obtained from the operation at the steady state. However, it is time-consuming to achieve the steady state especially in the case of isotope separation. In this paper, with the purpose of simultaneous separation of isotopes of nitrogen and oxygen by NO distillation, we tried to determine the distillation parameters by an analytical method through the transient-state operation. It was confirmed that the results from the analysis were in good agreement with those observed for the operation at the steady state. Enrichment of the isotopes was carried out using a distillation column with a height of 1 m and inside diameter of 12 mm. The dependence of HETP on liquid flow rate was measured by the proposed method. The obtained HETP values were from 2 to 4 cm. The operation time of about 5 h was found to be long enough to determine the distillation parameters.
Publication Date:
Feb 01, 1987
Product Type:
Journal Article
Reference Number:
JPN-87-058678; EDB-87-133663
Resource Relation:
Journal Name: Radioisotopes (Tokyo); (Japan); Journal Volume: 36:2
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; NITROGEN 15; ISOTOPE SEPARATION; OXYGEN 18; DISTILLATION; DISTILLATION EQUIPMENT; EFFICIENCY; NITROGEN OXIDES; CHALCOGENIDES; EQUIPMENT; EVEN-EVEN NUCLEI; ISOTOPES; LIGHT NUCLEI; NITROGEN COMPOUNDS; NITROGEN ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; OXIDES; OXYGEN COMPOUNDS; OXYGEN ISOTOPES; SEPARATION PROCESSES; STABLE ISOTOPES; 400202* - Isotope Effects, Isotope Exchange, & Isotope Separation
OSTI ID:
6369000
Research Organizations:
Institute of Physical and Chemical Research, Wako, Saitama, Japan
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: RAISA
Submitting Site:
HEDB
Size:
Pages: 57-63
Announcement Date:

Journal Article:

Citation Formats

Isomura, Shohei, Tonooka, Yasuhiko, and Kaetsu, Hayato. Separation of isotopes of nitrogen and oxygen by low temperature distillation of nitrogen oxide. Japan: N. p., 1987. Web.
Isomura, Shohei, Tonooka, Yasuhiko, & Kaetsu, Hayato. Separation of isotopes of nitrogen and oxygen by low temperature distillation of nitrogen oxide. Japan.
Isomura, Shohei, Tonooka, Yasuhiko, and Kaetsu, Hayato. 1987. "Separation of isotopes of nitrogen and oxygen by low temperature distillation of nitrogen oxide." Japan.
@misc{etde_6369000,
title = {Separation of isotopes of nitrogen and oxygen by low temperature distillation of nitrogen oxide}
author = {Isomura, Shohei, Tonooka, Yasuhiko, and Kaetsu, Hayato}
abstractNote = {In general, the distillation parameters, such as the number of theoretical plate (NTP) and the height equivalent to a theoretical plate (HETP), can be obtained from the operation at the steady state. However, it is time-consuming to achieve the steady state especially in the case of isotope separation. In this paper, with the purpose of simultaneous separation of isotopes of nitrogen and oxygen by NO distillation, we tried to determine the distillation parameters by an analytical method through the transient-state operation. It was confirmed that the results from the analysis were in good agreement with those observed for the operation at the steady state. Enrichment of the isotopes was carried out using a distillation column with a height of 1 m and inside diameter of 12 mm. The dependence of HETP on liquid flow rate was measured by the proposed method. The obtained HETP values were from 2 to 4 cm. The operation time of about 5 h was found to be long enough to determine the distillation parameters.}
journal = {Radioisotopes (Tokyo); (Japan)}
volume = {36:2}
journal type = {AC}
place = {Japan}
year = {1987}
month = {Feb}
}