| 冠醚-1,2-二氯乙烷在苦味酸体系中对轻希土元素的萃取 |
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| 引用本文： | 段震文,周金中,汪德熙.冠醚-1,2-二氯乙烷在苦味酸体系中对轻希土元素的萃取[J].核化学与放射化学,1986(4). |
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| 作者姓名： | 段震文 周金中 汪德熙 |
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| 作者单位： | 中国原子能科学研究院 北京
(段震文，周金中)，中国原子能科学研究院 北京(汪德熙) |
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| 摘 要： | 本文在文献1]的基础上,研究了二环己基-18-冠-6(DC18C6)和二环己基-15-冠-5(DC15C5)在苦味酸体系中对La~(3+),Ce~(3+),Pr~(3+),Nd~(3+),Sm~(3+),Eu~(3+),Gd~(3+)七个轻希土元素的萃取,求得了萃合常数和萃合物在有机相中的离解常数,并测定了苦味酸在水相对七个希土元素的一级络合常数。
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| 关 键 词： | 冠醚 轻希土元素 溶剂萃取 |
EXTRACTION OF LIGHT RARE EARTH IN PICRIC ACID MEDIUM WITH CROWN ETHERS-1, 2-DICHLOROETHANE |
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| DUANG ZHENGWEN ZHOU JINZHONG WANG DEXI.EXTRACTION OF LIGHT RARE EARTH IN PICRIC ACID MEDIUM WITH CROWN ETHERS-1, 2-DICHLOROETHANE[J].Journal of Nuclear and Radiochemistry,1986(4). |
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| Authors: | DUANG ZHENGWEN ZHOU JINZHONG WANG DEXI |
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| Abstract: | Results on the extraction of La3+, Ce3 + , Pr3 + , Nd3+ , Sm3+, Eu3+and Gd3+ in picric acid medium with DC18C6 and DC15C5 in dichloroethane are reported on the basis of the extraction of picric acid with crown ethers. The extraction constants and the dissociation constants of extracted compounds in the organic phase are calculated. The first order complexing constants of the seven rare earth elements by picric acid are determined. |
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| Keywords: | Crown ethers Light rare earth elements Solvent Extraction |
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