Extraction Behavior of Rare Earths with 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 Using Solid-liquid Extraction Technique
来源期刊：Rare Metals1993年第3期
论文作者：高锦章 潘仲巍 杜新贞 康敬万 白光弼
文章页码：198 - 202
摘 要：<正> The extraction behavior of rare earths was studied by using paraffin with ceresin as a diluent containing1-phenyl-3-methyl-4-benzoyl-pyrazolone-5.In solid phase,the composition of complexes is REP3.The equilib-rium extraction constants and pH1/2 values of solid-liquid extraction are higher than those of normalliquid-liquid extraction.The extraction efficiency tends to maximum when the ratio of phases is 1:1.When theextraction temperature is higher than the melting point of paraffin and the extraction time is over 10 min,theextraction efficiency keeps constant.Moreover,the relationship among separation factor,equilibrium extrac-tion constant,pH1/2 value and atomic number was obtained.The mechanism of solid-liquid extraction isanalogous to that of liquid-liquid extraction.
高锦章，潘仲巍，杜新贞，康敬万，白光弼
摘 要：<正> The extraction behavior of rare earths was studied by using paraffin with ceresin as a diluent containing1-phenyl-3-methyl-4-benzoyl-pyrazolone-5.In solid phase,the composition of complexes is REP3.The equilib-rium extraction constants and pH1/2 values of solid-liquid extraction are higher than those of normalliquid-liquid extraction.The extraction efficiency tends to maximum when the ratio of phases is 1:1.When theextraction temperature is higher than the melting point of paraffin and the extraction time is over 10 min,theextraction efficiency keeps constant.Moreover,the relationship among separation factor,equilibrium extrac-tion constant,pH1/2 value and atomic number was obtained.The mechanism of solid-liquid extraction isanalogous to that of liquid-liquid extraction.
关键词：
