UNIVERSAL SOLVENT EXTRACTION (UNEX) FLOWSHEET TESTING FOR THE REMOVAL OF CESIUM, STRONTIUM, AND ACTINIDE ELEMENTS FROM RADIOACTIVE, ACIDIC DISSOLVED CALCINE WASTE

Autor:	Jack D. Law, R. Scott Herbst, B. N. Zaitsev, V. M. Esimantovskiy, Vasily Babain, Terry A. Todd, V. N. Romanovskiy, Igor V. Smirnov
Rok vydání:	2002
Předmět:	inorganic chemicals Radionuclide Strontium Chemistry General Chemical Engineering Radiochemistry Extraction (chemistry) Radioactive waste chemistry.chemical_element General Chemistry Actinide Diluent Solvent Caesium
Zdroj:	Solvent Extraction and Ion Exchange. 20:429-445
ISSN:	1532-2262 0736-6299
Popis:	The presence of long-lived radionuclides presents a challenge to the management of radioactive wastes. Separation of the radionuclides from the waste solutions has the potential of significantly decreasing the costs associated with the immobilization and disposal of the radioactive waste by minimizing waste volumes. Typically, several separate processes are required for the separation of cesium, strontium, and actinides from radioactive wastes. A novel solvent extraction process, the Universal Extraction (UNEX) process, has been developed for the simultaneous separation of cesium, strontium, and the actinides from radioactive acidic waste solutions. The UNEX process solvent consists of chlorinated cobalt dicarbollide for the extraction of 137Cs, polyethylene glycol for the extraction of 90Sr, and diphenyl-N,N-di-n-butylcarbamoylmethyl phosphine oxide for the extraction of the actinides and lanthanides. A non-nitroaromatic polar diluent, phenyltrifluoromethyl sulfone, is used for this process. A U...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d3051d1020a67040da35dc00d4073c85 https://doi.org/10.1081/sei-120014366 Zobrazit plný text záznamu