METHOD FOR PRODUCING DEUTERIUM-DEPLETED WATER, METHOD FOR SEPARATING HEAVY WATER AND LIGHT WATER, AND METHOD FOR PRODUCING DEUTERIUM-ENRICHED WATER

Title:

METHOD FOR PRODUCING DEUTERIUM-DEPLETED WATER, METHOD FOR SEPARATING HEAVY WATER AND LIGHT WATER, AND METHOD FOR PRODUCING DEUTERIUM-ENRICHED WATER

Document Type and Number:

WIPO Patent Application WO/2016/158549

Kind Code:

A1

Abstract:

Deuterium-depleted water having lowered concentration of heavy water and semi-heavy water can be easily produced within a short period of time by using the fact that light water is desorbed from a definite adsorbent at a higher initial speed than heavy water and semi-heavy water. A method for producing deuterium-depleted water by removing heavy water and semi-heavy water from water, said method being characterized by comprising a desorption step for reducing the relative pressure around a definite adsorbent, which has adsorbed water vapor, and then collecting the water vapor desorbed from the adsorbent during a period wherein the desorption speed of light water exceeds the desorption speed of heavy water and semi-heavy water.

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Inventors:

KANEKO KATSUMI (JP)
TAKAGI TOSHIO (JP)
MURATA KATSUYUKI (JP)
FUTAMURA RYUSUKE (JP)

Application Number:

PCT/JP2016/058911

Publication Date:

October 06, 2016

Filing Date:

March 22, 2016

Export Citation:

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Assignee:

UNIV SHINSHU (JP)
KOTOBUKI TSUSHOU CO LTD (JP)

International Classes:

B01D59/26; B01D53/047

Foreign References:

JPH10128072A	1998-05-19
JP2012158499A	2012-08-23
JP2012005920A	2012-01-12

Other References:

IWAI YASUNORI: "Application of Pressure Swing Adsorption to Water Detritiation Process", JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, vol. 42, no. 6, 25 June 2005 (2005-06-25), pages 566 - 572, XP055318872

Attorney, Agent or Firm:

DOBASHI AKIRA (JP)
Hiroshi Tsuchihashi (JP)

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