Extraction of Cs+ and Sr2+ from HNO3 Solution Using Macrocyclic Polyethers
作者： I. H. Gerow , J. E. Smith , M. W. Davis
DOI: 10.1080/01496398108068537
关键词: Chemistry 、 Nitric acid 、 Alkali metal 、 Tributyl phosphate 、 Crown Compounds 、 Aqueous two-phase system 、 PUREX 、 Inorganic chemistry 、 Sulfonic acid 、 Qualitative inorganic analysis
摘要: Abstract A series of crown compounds has been studied in connection with the development a solvent extraction process for removing Cs+ and Srs2+ from acidic high activity nuclear waste. Crown were investigated because their ability to form organic soluble complexes alkali metals alkaline earth metals. The (tributyl phosphate kerosene) was chosen its compatibility Purex currently used at Savannah River Plant plutonium uranium purification. found not be sufficiently strong complexing agents extract these an aqueous phase inorganic anion such as nitrate or chloride. However, use large anions which also functioned liquid ion exchangers made it possible 3 M HNO3 while leaving Sr2+ La3+ behind. .02 bis-(4,4′(5′)-[q-hydroxyheptyl]-benzo)-18-crown-6 0.076 (5 vol-%) didodecylnaphthalene sulfonic acid (DNS)-27 vol-...
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