Title:
METHOD AND APPARATUS FOR ENRICHMENT OF HEAVY COMPONENT OF OXYGEN ISOTOPES
Document Type and Number:
WIPO Patent Application WO/2000/027509
Kind Code:
A1
Abstract:
A method for enriching a heavy component of oxygen isotopes which comprises subjecting an oxygen material containing heavy components of oxygen isotopes to low temperature distillation to thereby enrich at least one of the following oxygen molecules containing one or more heavy components of oxygen isotopes: ?16¿O?17¿O, ?16¿O?18¿O, ?17¿O?17¿O, ?17¿O?18¿O, and ?18¿O?18¿O; and an apparatus therefor. A method for further enriching the at least one oxygen molecule enriched above, which comprises subjecting a plurality of oxygen isotope molecules containing the above heavy components of oxygen isotopes which have been enriched by the above low temperature distillation to isotope scrambling; and an apparatus therefor are also disclosed.
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Inventors:
HAYASHIDA SHIGERU (JP)
KIHARA HITOSHI (JP)
EGOSHI NOBUAKI (JP)
KAWAKAMI HIROSHI (JP)
KIHARA HITOSHI (JP)
EGOSHI NOBUAKI (JP)
KAWAKAMI HIROSHI (JP)
Application Number:
PCT/JP1999/006198
Publication Date:
May 18, 2000
Filing Date:
November 08, 1999
Export Citation:
Assignee:
NIPPON OXYGEN CO LTD (JP)
HAYASHIDA SHIGERU (JP)
KIHARA HITOSHI (JP)
EGOSHI NOBUAKI (JP)
KAWAKAMI HIROSHI (JP)
HAYASHIDA SHIGERU (JP)
KIHARA HITOSHI (JP)
EGOSHI NOBUAKI (JP)
KAWAKAMI HIROSHI (JP)
International Classes:
B01D59/04; B01J19/32; F25J3/02; F25J3/08; (IPC1-7): B01D59/04; F25J3/02
Foreign References:
| JPH07148419A | 1995-06-13 | |||
| JPS63232825A | 1988-09-28 |
Attorney, Agent or Firm:
Shiga, Masatake (Takadanobaba 3-chome Shinjuku-ku Tokyo, JP)
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