Title:
LITHIUM ISOTOPE CONCENTRATION DEVICE, MULTI-STAGE LITHIUM ISOTOPE CONCENTRATION DEVICE, AND LITHIUM ISOTOPE CONCENTRATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/190771
Kind Code:
A1
Abstract:
This lithium-isotope enrichment device 1 comprises a treatment tank 7 which is divided into a supply tank 11 and a recovery tank 12 by means of an electrolyte membrane 2 having lithium ion conductivity, and recovers, into the recovery tank 12, an aqueous solution ES for the recovery of 6Li of which the isotope ratio of 6Li is high from a Li-containing aqueous solution FS stored in the supply tank 11. While a power supply 51, which is connected between a second electrode 32 of a porous structure provided on a recovery tank 12-side surface of the electrolyte membrane 2 and a third electrode 33 provided to be spaced apart from the electrolyte membrane 2 in the recovery tank 12, applies a voltage V1 with the second electrode 32 being made to be positive, the lithium-isotope enrichment device 1 connects a first electrode 31 provided in the supply tank 11 to the second electrode 32.
Inventors:
SASAKI KAZUYA (JP)
SHINMURA KIYOTO (JP)
TOKUYOSHI RYOYA (JP)
SHINMURA KIYOTO (JP)
TOKUYOSHI RYOYA (JP)
Application Number:
PCT/JP2023/012998
Publication Date:
October 05, 2023
Filing Date:
March 29, 2023
Export Citation:
Assignee:
UNIV HIROSAKI (JP)
International Classes:
B01D59/42; C02F1/48
Foreign References:
| JP2019141807A | 2019-08-29 | |||
| JP2019141808A | 2019-08-29 | |||
| CN103736395A | 2014-04-23 | |||
| CN112473370A | 2021-03-12 | |||
| JP2002079059A | 2002-03-19 | |||
| JP2012055881A | 2012-03-22 | |||
| JP2019081953A | 2019-05-30 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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