| 杂质对磷酸萃取过程的影响 |
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| 引用本文： | 龚海燕,李军,陈亮,翁贤芬.杂质对磷酸萃取过程的影响[J].磷肥与复肥,2005,20(5):11-13. |
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| 作者姓名： | 龚海燕 李军 陈亮 翁贤芬 |
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| 作者单位： | 四川大学,化工学院,四川,成都,610065;四川理工学院,四川,自贡,646300 |
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| 摘 要： | 研究萃取相比与磷酸萃取率和杂质分离系数之间的关系,考察硫酸和铁2种杂质对磷酸萃取率的影响。实验结果表明:随着相比提高,磷酸萃取率上升,且各杂质分离系数提高;硫酸的存在有利于磷酸萃取,且存在一个最佳含量,使磷酸对硫酸分离系数最大;而铁离子的存在则不利于磷酸萃取。
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| 关 键 词： | 磷酸 溶剂萃取 杂质分离系数 |
| 文章编号： | 1007-6220(2005)05-0011-03 |
| 修稿时间： | 2005年3月4日 |
Effect of impurities on extraction of phosphoric acid |
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| GONG Hai-yan,LI Jun,CHEN Liang,WENG Xian-fen.Effect of impurities on extraction of phosphoric acid[J].Phosphate & Compound Fertilizer,2005,20(5):11-13. |
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| Authors: | GONG Hai-yan LI Jun CHEN Liang WENG Xian-fen |
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| Affiliation: | GONG Haiyan~1,LI Jun~1,CHEN Liang~1,WENG Xianfen~2 |
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| Abstract: | Some relationships are studied among the phase ratio, extraction efficiency and separation coefficients, and the influences of 2 impurities SO_4~(2)and Fe~(3+)on extraction efficiency of phosphoric acid are discussed. The experimental results show that the extraction efficiency of phosphoric acid and the separation coefficients of impurities rise with the increasing phase ratio; the impurity H_2SO_4 is positive to the extraction of phosphoric acid under an optimum amount of H_2SO_4, with the maximum separation coefficient between the phosphoric acid and sulfuric acid; meanwhile the impurity Fe~(3+)is negative. |
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| Keywords: | phosphoric acid solvent extraction impurity separation coefficient |
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