Title:
LITHIUM ISOTOPE SEPARATING AGENT AND SEPARATION OF LITHIUM ISOTOPE USING THE SAME
Document Type and Number:
Japanese Patent JP3020146
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a novel lithium isotope separating agent excellent in separation performance of lithium isotope and a method for efficiently separating lithium isotope using the same.
SOLUTION: The lithium isotope separating agent is composed of monensin or the derivative expressed by a formula (in the formula, each of R1-R4 represents hydrogen atom or hydrocarbon group) and the separating method is by allowing the lithium ion aq. solution, which contains 6Li and 7Li and is adjusted alkaline, to contact with a water immiscible organic solvent containing the separating agent and transferring a part of lithium ion to the organic solvent to increase the ratio of 7Li to 6Li in lithium ions remaining in an aq. solution. And the separating method of lithium isotope is by continuously transferring lithium ion in the alkaline adjusted lithium ion-containing aq. solution to an acidic adjusted aq. solution through a liquid film composed of the water immiscible organic solvent to obtain an aq. solution containing lower 7Li than 6Li.
Inventors:
Kenta Ohi
Yoji Makida
Hirofumi Kano
Akinari Sonoda
Takahiro Hirotsu
Yoji Makida
Hirofumi Kano
Akinari Sonoda
Takahiro Hirotsu
Application Number:
JP19060297A
Publication Date:
March 15, 2000
Filing Date:
June 30, 1997
Export Citation:
Assignee:
Director of Industrial Technology
International Classes:
B01D59/24; C01D15/00; (IPC1-7): B01D59/24
Domestic Patent References:
| JP59145022A |
Attorney, Agent or Firm:
220100025 Director, Shikoku Institute of Industrial Technology, Institute of Industrial Technology