| 用膜蒸馏方法制备高Alc含量的高浓度聚合氯化铝 |
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| 引用本文： | 赵长伟,王军,栾兆坤. 用膜蒸馏方法制备高Alc含量的高浓度聚合氯化铝[J]. 中国化学工程学报, 2011, 19(1): 173-176 |
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| 作者姓名： | 赵长伟 王军 栾兆坤 |
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| 作者单位： | State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China |
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| 基金项目： | Supported by National Natural Science Foundation of China(50708109,21076219); the National High Technology Research and Development Key Program of China(2007AA06Z339,2009AA062901) |
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| 摘 要： | A direct contact membrane distillation (DCMD) process was applied to prepare high concentration polyaluminum chloride (PACl) with high Alc content. The changes in total Al concentration (AlT) and Al species distribution were investigated. The results showed that AlT increased but the flux decreased with operating time during the DCMD process. The Alc content increased from 65% to 81% while the Alb content decreased from 34% to 18%, and the Ala content was almost 1% in the process. 2.1 mol•L1 PACl with 81% Alc was successfully prepared by DCMD method. Thus the DCMD is an effective method for preparing high concentration PACl with high Alc content.
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| 关 键 词： | polyaluminum chloride high concentration membrane distillation preparation |
| 收稿时间： | 2010-05-13 |
| 修稿时间： | 2010-9-18 |
Preparation of high concentration polyaluminum chloride with high Alc content by membrane distillation |
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| ZHAO Changwei,WANG Jun,LUAN Zhaokun. Preparation of high concentration polyaluminum chloride with high Alc content by membrane distillation[J]. Chinese Journal of Chemical Engineering, 2011, 19(1): 173-176 |
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| Authors: | ZHAO Changwei WANG Jun LUAN Zhaokun |
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| Affiliation: | State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China |
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| Abstract: | A direct contact membrane distillation (DCMD) process was applied to prepare high concentration polyaluminum chloride (PACl) with high Alc content. The changes in total Al concentration (AlT) and Al species distribution were investigated. The results showed that AlT increased but the flux decreased with operating time during the DCMD process. The Alc content increased from 65% to 81% while the Alb content decreased from 34% to 18%, and the Ala content was almost 1% in the process. 2.1 mol•L1 PACl with 81% Alc was successfully prepared by DCMD method. Thus the DCMD is an effective method for preparing high concentration PACl with high Alc content. |
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| Keywords: | polyaluminum chloride high concentration membrane distillation preparation |
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