The Analysis of Valence State of Np and Pu in Chinese High‐Level Liquid Waste

Autor:	Liu Xuegang, Song Chongli, Liang Junfu
Rok vydání:	2006
Předmět:	Valence (chemistry) Chemistry General Chemical Engineering Neptunium Radiochemistry Inorganic chemistry chemistry.chemical_element Americium General Chemistry Uranium Liquid waste Solvent extraction Plutonium
Zdroj:	Solvent Extraction and Ion Exchange. 24:485-498
ISSN:	1532-2262 0736-6299
Popis:	The valence states of neptunium and plutonium in simulated and genuine Chinese high‐level liquid waste (HLLW) have been studied by solvent extraction. A TRPO process has been developed in our laboratory in recent years in which 30% TRPO‐kerosene was used as extractant. This process demonstrates good extraction efficiency for neptunium as well as uranium, plutonium, and americium. A countercurrent solvent extraction experiment with genuine HLLW has been carried out with 16 stages of centrifugal extractors. The results of valence state experiments showed that the neptunium and plutonium were mainly in the tetravalent state respectively. It is not necessary to regulate the valence state of neptunium before HLLW treatment by the Chinese TRPO process.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e700703faaf7470104995ad2ae4da997 https://doi.org/10.1080/07366290600762553 Zobrazit plný text záznamu