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/2016/031896

Kind Code:

A1

Abstract:

Through the present invention, deuterium-depleted water is produced easily and inexpensively. A method for removing heavy water and semi-heavy water from water and producing deuterium-depleted water, wherein the method has an adsorption step for supplying water vapor to a predetermined adsorbent at a pressure at which the heavy water and semi-heavy water are adsorbed on the adsorbent and light water is not readily adsorbed, causing the heavy water and semi-heavy water to be adsorbed, and recovering the water vapor not adsorbed on the adsorbent. The method also has a desorption step for maintaining the vapor pressure of the periphery of the predetermined adsorbent on which the water vapor is adsorbed in a range in which heavy water and semi-heavy water are not readily desorbed, and recovering the water vapor desorbed from the adsorbent.

Inventors:

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

Application Number:

PCT/JP2015/074154

Publication Date:

March 03, 2016

Filing Date:

August 27, 2015

Export Citation:

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Assignee:

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

International Classes:

C01B5/02; B01D53/047; B01D59/26

Foreign References:

JPH10128072A	1998-05-19
JPS5334098A	1978-03-30
JPH0531331A	1993-02-09

Other References: