高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 413.
• Chemistry in Surface Science • 上一篇 下一篇
YUE Shan-Tang1, WANG Yan-Zhi2, CHEN Ming-Zi2, HAN Shu-Ming2, LI De-Qian1, SU Qiang1
YUE Shan-Tang1, WANG Yan-Zhi2, CHEN Ming-Zi2, HAN Shu-Ming2, LI De-Qian1, SU Qiang1
摘要:
Naphthenic acid is a specific, effective extractant to separate yttrium and other rare earth metals and to purify yttrium. But, it has some weaknesses as follows:(1) The extraction separation of yttrium is performed under the condition of higher pH value, thus, the extractant, affected by the impurities of high valence metal ions, is easily emulsified. (2) It is a by-product of industry, so, its quality is not stable. In addition, it has a higher solubility in aqueous solution. (3) The separation factor of lanthanum/yttrium is less and is also affected by temperature, and so on[1].
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