Work

Technology for reprocessing mother liquor and washing solution from crystalization purification of HTGR SNF

Year: 2024

Type: article

Abstract: The extractants diphenyl-N,N-dioctylcarbamoylmethylphosphine oxide and diphenyl-N,N-diisobutylcarbamoylmethylphosphine oxide for the processing of spent fuel were tested. The conditions for extraction and separation of uranium and TPE–REE were determined. A technological scheme was proposed for processing spent nuclear fuel from high-temperature gas-cooled reactors. During dynamic testing, at least 99.9% of uranium and plutonium and at least 99.5% of americium and rare earth elements were extracted. The TPE + REE and U+Pu fractions were isolated. The U+Pu fraction contained approximately 5% Am, while the TPE + REE fraction had less than 0.1% U and Pu.

Source: Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.)

DOI: 10.31857/s0033831124020067

Authors: L. I. Tkachenko, V. L. Vidanov, E. V. Kenf, N. Yu. Volodina, Ya. O. Pleshakov, A. Yu. Shadrin

Institutions: V. G. Khlopin Radium Institute, "VNIINM" named after AA Bochvar

Language: English

Topic: Radioactive element chemistry and processing

Subfield: Inorganic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: bronze

OpenAlex ID: W4402504937

FWCI: 0.211

Cites: 18

Cited by: 2

Related to: 10