| Extraction Behavior of Rare Earths with 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 Using Solid-liquid Extraction Technique |
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| 引用本文： | 高锦章,潘仲巍,杜新贞,康敬万,白光弼. Extraction Behavior of Rare Earths with 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 Using Solid-liquid Extraction Technique[J]. 稀有金属(英文版), 1993, 0(3) |
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| 作者姓名： | 高锦章 潘仲巍 杜新贞 康敬万 白光弼 |
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| 作者单位： | Gao Jinzhang Pan Zhongwei Du Xinzhen Kang Jingwan Bai Guangbi Institute of Chemistry，Northwest Normal University，Lanzhou 730070，China |
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| 摘 要： | 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 REP_3.The equilib-rium extraction constants and pH_(1/2) 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,pH_(1/2) value and atomic number was obtained.The mechanism of solid-liquid extraction isanalogous to that of liquid-liquid extraction.
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Extraction Behavior of Rare Earths with 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 Using Solid-liquid Extraction Technique |
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| Gao Jinzhang Pan Zhongwei Du Xinzhen Kang Jingwan Bai Guangbi Institute of Chemistry,Northwest Normal University,Lanzhou ,China. Extraction Behavior of Rare Earths with 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 Using Solid-liquid Extraction Technique[J]. Rare Metals, 1993, 0(3) |
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| Authors: | Gao Jinzhang Pan Zhongwei Du Xinzhen Kang Jingwan Bai Guangbi Institute of Chemistry Northwest Normal University Lanzhou China |
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| Affiliation: | Gao Jinzhang Pan Zhongwei Du Xinzhen Kang Jingwan Bai Guangbi Institute of Chemistry,Northwest Normal University,Lanzhou 730070,China |
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| Abstract: | The extraction behavior of rare earths was studied by using paraffin with ceresin as a diluent containing 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5.In solid phase,the composition of complexes is REP_3.The equilib- rium extraction constants and pH_(1/2) values of solid-liquid extraction are higher than those of normal liquid-liquid extraction.The extraction efficiency tends to maximum when the ratio of phases is 1:1.When the extraction temperature is higher than the melting point of paraffin and the extraction time is over 10 min,the extraction efficiency keeps constant.Moreover,the relationship among separation factor,equilibrium extrac- tion constant,pH_(1/2) value and atomic number was obtained.The mechanism of solid-liquid extraction is analogous to that of liquid-liquid extraction. |
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| Keywords: | Solid-liquid extraction Rare earths 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 |
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