模拟高放废液中冠醚萃取锶的分配比模型
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摘要: 采用均匀设计方法设计了实验点，用复合型优化方法回归出了复杂体系中冠醚（二环已基１８冠６）萃取锶的分配比经验模型。对冠醚－正辛醇萃取不同稀释倍数的模拟高放废液中锶的分配比的实验结果与模型计算值进行了比较。结果表明，给出的锶分配比的经验模型的相对偏差在±１０％以内，平均相对偏差为４．３％。模型可用于萃取流程设计与计算。Abstract: A DISTR1BUTION KATIO MODEL OF STRONTIUM BY CROWN ETHER EXTRACTION FROM SIMULATED HLLWCHEN JING；WANG QIUPING；WANG JIANCHEN；SONG CHONGLI（Institute of Nuclear Energy Technology，Tsinghua University，P.O.Box 1021，Beijing 102201）ABSTRACT An experiential distrbution ratio mdel for strontium extraction by dicyclohexano-18-crown-6-n-octanol from simulated high-level waste is establised．The experimental points forthe model are designed by experimental homogeneous-design method．The regression of distribu-tion ratio model of strontium is carried out by the complex-optimization method. The model isverified with experimental distribution ratio data in different extraction conditions.The resultsshow that the relative deviations are within ±10％and the mean relative divination is 4．4％be-tween the calculated data and the experimental ones.The experiential model together with an it-eration program can be used for the strontium extraction process calculation,Key words Distribution ratio model Crown ether Strontium Solvent extraction HLLW
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[1] １ＺｈｕＹ，ＳｏｎｇＣ．ＲｅｃｏｖｅｒｙｏｆＮｅｐｔｕｎｉｕｍ，ＰｌｕｔｏｎｉｕｍａｎｄＡｍｅｒｉｃｉｕｍＦｒｏｍＨｉｇｈｌｙＡｃｔｉｖｅＷａｓｔｅ，ＴｒａｌｋｙｌＰｈｏｓｐｈｉｎｅＯｘｉｄｅＥｘｔｒａｃｔｉｏｎＩｎ：ＭｏｒｓｓＬＲ，ＦｕｇｅｒＪｅｄｓ．ＴｒａｎｓｕｒａｎｉｕｍＥｌｅｍｅｍｔ：ＡＨａｌｆＣｅｎｔｕｒｙ．Ｗａｓｈｉｎｇ－ｔｏｎＤ，Ｃ．ＵＳＡ：ＡｍｅｒｉｃａｎＣｈｅｍｉｃａｌＳｏｃｉｅｔｙ，１９９２．２何龙海，翁锡，杨大助．冠醚萃取法去除高放废液中的锶．中国核科技报告．ＣＮＩＣ－００７４４，１９９３．３何龙海，翁锡，杨大助，等．冠醚萃取法从高放废液中去除锶Ⅲ．二环己基１８冠６－辛醇－「２]对锶的萃取．核化学与放射化学．１９９４，１６（１）：１８．４ＳｃｈｕｌｚＷＷ．，ＢｒａｙＬＡ．ＳｏｌｖｅｎｔＥｘｔｒａｃｔｉｏｎＲｅｃｏｖｅｒｙｏｆＢｙｐｒｏｄｕｃｔ￣（１３７）Ｃｓａｎｄ￣（９０）ＳｒＦｒｏｍＨＮＯ＿３Ｓｏｌｕｔｉｏｎｓ─—ＡＴｅｃｈｎｏｌｏｇｙＲｅｖｉｅｗａｎｄＡｓｓｅｓｓｍｅｎｔ．ＳｅｐＳｃｉＴｅｃｈｎｏｌ，１９８７，２２（２＆３）：１９１．５ＢｌａｓｉｕｓＥ，ＫｌｅｉｎＷ，ＳｃｈｏｎＵＪ．ＳｅｐａｒａｔｉｏｎｏｆＳｔｒｏｎｔｉｕｍＦｒｏｍＮｕｃｌｅａｒＷａｓｔｅＳｏｌｕｔｉｏｎｓｂｙＳｏｌｖｅｎｔＥｘｔｒａｃｔｉｏｎｗｉｔｈＣｒｏｗｎＥｔｈｅｒｓ．ＪＲａｄｉｏａｎａｌＮｕｃｌＣｈｅｍ，Ａｒｔｉｃｌｅｓ，１９８５，８９（２）：３８９．６秦建候，邓勃，王小芹，分析测试数理统计处理中计算机的应用．北京：化学工业出版社，１９８９．３３４．
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