A SOLUTION, FOR CESIUM REMOVAL FROM HIGH-SALINITY ACIDIC OR ALKALINE LIQUID WASTE: THE CROWN CALIX[4]ARENES
A SOLUTION, FOR CESIUM REMOVAL FROM HIGH-SALINITY ACIDIC OR ALKALINE LIQUID WASTE: THE CROWN CALIX[4]ARENES
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DOI：
10.1081/ss-100100688
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发表时间：
1999-04
影响因子：
2.8
通讯作者：
J. Dozol;N. Simon;V. Lamare;H. Rouquette;S. Eymard;B. Tournois;D. D. Marc-D.;R. M. Macias
中科院分区：
文献类型：
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作者：
J. Dozol;N. Simon;V. Lamare;H. Rouquette;S. Eymard;B. Tournois;D. D. Marc-D.;R. M. Macias
科学文献中有大量关于从废液中提取铯的文章。从20世纪40年代开始，几种无机交换剂被用于去除铯，如沸石，六氰高铁酸盐，磷酸锆，磷钼酸铵，以及最近的结晶硅钛酸盐。后来，人们提出了有机化合物，如甲酸树脂、四苯基硼，或萃取剂，如双酚内酯或冠醚。一般来说，这些化合物只能在限制性条件下（碱性介质、低盐度等）才能有效去除铯，随着废液酸度（或盐度）的增加，这些化合物的性能大多会急剧下降。必须采取措施来改善萃取剂的性能。有限数量的无机交换器可以去除铯，但它们往往不能被洗脱或需要大量的盐水洗脱液，导致大量的二次废物。杯[4]芳烃monocro……
ABSTRACT The scientific literature abounds with articles on the extraction of cesium from liquid waste. From the 1940s, several classes of inorganic exchangers were used for cesium removal, such as zeolites, hexacyanoferrates, zirconium phosphate, ammonium phosphomolybdate, and, more recently, crystalline silicotitanate. Later, organic compounds like formophenolic resins, tetraphenylboron, or extractants such as dicarbollides or crown ethers were proposed. Generally, these compounds were only able to efficiently remove cesium under restrictive conditions (alkaline medium, low salinity, etc.) The performances of most of these compounds strongly decreased as the acidity (or salinity) of the liquid waste increased. Artifices had to be implemented to improve the performances of extractants. A restricted number of inorganic exchangers allowed the cesium removal, but often they could not be eluted or needed prohibitive volumes of saline eluent, leading to large volumes of secondary waste. Calix[4]arenes monocro...