| 利用工业酒精处理铬渣 |
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| 引用本文： | 段素华,尹棋亚,张迎明,李道荣.利用工业酒精处理铬渣[J].水资源保护,2009,25(3):66-67. |
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| 作者姓名： | 段素华 尹棋亚 张迎明 李道荣 |
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| 作者单位： | 河南工业大学化学化工学院,河南,郑州,450001 |
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| 基金项目： | 高等学校博士学科点专项科研基金 |
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| 摘 要： | 利用工业酒精处理铬渣,使毒性大的Cr6+还原为毒性小的Cr3+,再用氨水中和,将Cr3+以Cr(OH)3的沉淀形式进行回收,从而达到铬渣的安全堆放。对Cr6+的解毒效果进行了单因素试验,得到最佳工艺条件:每10 g铬渣用酒精3 mL,酸度为0.5 mol/L,反应温度为40℃,反应时间为1 h。
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| 关 键 词： | 工业酒精 铬渣 解毒 工艺条件 |
| 修稿时间： | 2009/5/19 0:00:00 |
Study on utilization of denatured alcohol for chromium slag treatment |
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| DUAN Su-hua,YIN Qi-ya,ZHANG Ying-ming,LI Dao-rong.Study on utilization of denatured alcohol for chromium slag treatment[J].Water Resources Protection,2009,25(3):66-67. |
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| Authors: | DUAN Su-hua YIN Qi-ya ZHANG Ying-ming LI Dao-rong |
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| Affiliation: | ( College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China ) |
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| Abstract: | Denatured alcohol was used to dispose the chromium slag and reduce the toxic Cr （Ⅵ） to less toxic Cr （Ⅲ）. When ammonium water （NH3·H2O） was added to the trivalent chromium solution, Cr（OH）3 was precipitated and recycled, which was safe to heap on the chromium slag. A single factor experiment was carried out to study the detoxifcation effect on Cr （VI）. The optimum condition for the process is 3 mL denatured alcohol per 10 g chromium slag, with an acidity （H＋） of 0.5 mol/L, a reaction temperature of 40℃, and a reaction time of 1 h. |
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| Keywords: | denatured alcohol chromium slag detoxification technologcial conditions |
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