| 水热法还原铬酸钾/重铬酸钾制备水合氧化铬的实验 |
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| 引用本文： | 姚芝茂,李佐虎,张懿.水热法还原铬酸钾/重铬酸钾制备水合氧化铬的实验[J].过程工程学报,2003,3(1):62-67. |
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| 作者姓名： | 姚芝茂 李佐虎 张懿 |
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| 作者单位： | 中国科学院过程工程研究所,北京,100080 |
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| 基金项目： | 国家“863”计划资助项目(编号:2001AA647010) |
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| 摘 要： | 研究了水热法蔗糖还原铬酸钾/重铬酸钾为水合氧化铬的工艺过程. 考察了蔗糖用量比Rm、等温温度Tiso与等温时间tiso对Cr(VI)还原过程的影响规律，并通过L9(34)正交试验得出了三个因素的相对影响程度为tiso
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| 关 键 词： | 水热法 蔗糖 铬酸钾 重铬酸钾 水合氧化铬 |
| 文章编号： | 1009-606X(2003)01-0062-06 |
| 修稿时间： | 2002年5月15日 |
Experiments on Reducing Potassium Chromate and Potassium Dichromate to Chromic Oxide Hydrate under Hydrothermal Conditions |
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| YAO Zhi-mao,LI Zuo-hu,ZHANG Yi.Experiments on Reducing Potassium Chromate and Potassium Dichromate to Chromic Oxide Hydrate under Hydrothermal Conditions[J].Chinese Journal of Process Engineering,2003,3(1):62-67. |
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| Authors: | YAO Zhi-mao LI Zuo-hu ZHANG Yi |
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| Abstract: | Reduction of potassium chromate and potassium dichromate to chromic oxide hydrate under hydrothermal conditions using sucrose as the reducing agent was investigated. The effects of the stoichiometric mole ratio of sucrose to chromate or dichromate salts (Rm), the isothermal temperature (Tiso) and time (tiso) on the conversion of Cr6+ to Cr3+ were also studied in detail. By using the orthogonal experiment L9(34), the order of the above affecting factors was obtained: tiso
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| Keywords: | hydrothermal condition sucrose potassium chromate potassium dichromate chromic oxide hydrate |
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