Title:
METHOD FOR TREATING RETAINED PLUTONIUM IN WASTE ORGANIC PHASE IN PUREX PROCESS
Document Type and Number:
WIPO Patent Application WO/2023/155278
Kind Code:
A1
Abstract:
A method for treating retained plutonium in a waste organic phase in a PUREX process. The waste organic phase in the PUREX process contains an organic solvent and plutonium, and the method comprises: enabling the waste organic phase in the PUREX process to be in contact with an aqueous phase reverse extraction liquid containing 2,6-dipicolinic acid, and performing reverse extraction to obtain a plutonium reverse extraction product; enabling the plutonium in the reverse extraction liquid to be subjected to adsorption, transformation, and desorption on a column by means of an anion exchange column, and finally recycling the plutonium in the reverse extraction liquid. By means of the method, plutonium in the waste organic phase can be effectively eluted and recycled, and especially plutonium in the waste organic phase placed for a long time can be effectively eluted.
Inventors:
LIU QIAN (CN)
ZHU LIYANG (CN)
HAO XUAN (CN)
LAN YOUSHI (CN)
ZHOU JIN (CN)
YANG SULIANG (CN)
TIAN GUOXIN (CN)
CHEN QIN (CN)
ZHANG GUOGUO (CN)
ZHU LIYANG (CN)
HAO XUAN (CN)
LAN YOUSHI (CN)
ZHOU JIN (CN)
YANG SULIANG (CN)
TIAN GUOXIN (CN)
CHEN QIN (CN)
ZHANG GUOGUO (CN)
Application Number:
PCT/CN2022/084634
Publication Date:
August 24, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
CHINA INST ATOMIC ENERGY (CN)
International Classes:
C22B60/04; C22B7/00
Foreign References:
| CN105761770A | 2016-07-13 | |||
| CN106893878A | 2017-06-27 | |||
| CN111863301A | 2020-10-30 | |||
| JP3049320B1 | 2000-06-05 |
Other References:
HAO, XUAN; LIU, QIAN; ZHANG, GUOGUO; ZHU, LIYANG; ZHOU, JIN: "Study on Adsorption of DPA-Pu(IV)/U(VI) Complex on Strongly Basic Anion Exchange Resin", ATOMIC ENERGY SCIENCE AND TECHNOLOGY, BEIJING : YUANZINENG CHUBANSHE, CN, vol. 56, no. 8, 1 August 2022 (2022-08-01), CN , pages 1616 - 1625, XP009548705, ISSN: 1000-6931, DOI: 10.7538/yzk.2021.youxian.0532
Attorney, Agent or Firm:
INNOTRACK INTELLECTUAL PROPERTY LAW FIRM (CN)
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