| 重铬酸钾法测硫酸亚铁中铁含量废液中铬离子的回收与再生 |
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| 引用本文： | 王岩. 重铬酸钾法测硫酸亚铁中铁含量废液中铬离子的回收与再生[J]. 辽东学院学报(自然科学版), 2003, 10(1): 35-36 |
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| 作者姓名： | 王岩 |
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| 作者单位： | 丹东职业技术学院,实验中心,辽宁,丹东,118003 |
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| 摘 要： | 重铬酸钾法测定硫酸亚铁含量后的废液可用氨水沉淀铬离子,用氢氧化钠溶解,双氧水为氧化剂,硫酸为酸化剂,最后用氯化钾进行复分解反应,再生出回收率较高的重铬酸钾供学生反复使用。
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| 关 键 词： | 重铬酸钾 再生 回收率 |
| 文章编号： | 1008-2174(2003)01-0035-02 |
| 修稿时间： | 2002-11-12 |
The Reclaimation and Regeneration of Cr3+ in the Discard Solution of Testing Fe in FeSO4 with the Method of K2Cr2O7 |
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| WANG Yan. The Reclaimation and Regeneration of Cr3+ in the Discard Solution of Testing Fe in FeSO4 with the Method of K2Cr2O7[J]. Journal of Liaodong University(Natural Sciences), 2003, 10(1): 35-36 |
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| Authors: | WANG Yan |
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| Abstract: | Precipitating Cr3+ in the discard solution with ammonia water while testing Fe2 in FeSO4 by the method of K2Cr2O7 Soluting the precipitates with NaOH, H2O2 as oxidant, H2SO4 as acidification. Reacting with KC1 as double decomposition. Finally regenerating K2Cr2O7 with higher rate of reclamation. |
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| Keywords: | K2Cr2O7 regeneration the reclaimation rate |
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