Preparation of High Concentration Polyaluminum Chloride with High Alc Content by Membrane Distillation
Preparation of High Concentration Polyaluminum Chloride with High Alc Content by Membrane Distillation
复制标题
膜蒸馏法制备高浓度高Alc聚合氯化铝
DOI：
10.1016/s1004-9541(09)60195-6
复制
发表时间：
2011-02-01
影响因子：
3.8
通讯作者：
Luan Zhaokun
中科院分区：
文献类型：
--
作者：
Zhao Changwei;Wang Jun;Luan Zhaokun
采用直接接触式膜蒸馏（DCMD）工艺制备高浓度高铝碳含量聚合氯化铝（PACl）。研究了铝的总浓度（Al-T）和形态分布的变化。结果表明，在DCMD过程中，随着操作时间的延长，Al-T含量增加，而通量下降。Al-c含量从65%增加到81%，Al-b含量从34%下降到18%，Al-a含量几乎为1%。2.1用DCMD法成功地制备了Al-c含量为81%的PAC。因此，DCMD法是制备高浓度高铝碳含量PAC的有效方法。
A direct contact membrane distillation (DCMD) process was applied to prepare high concentration polyaluminum chloride (PACl) with high Al-c content. The changes in total Al concentration (Al-T) and Al species distribution were investigated. The results showed that Al-T increased but the flux decreased with operating time during the DCMD process. The Al-c content increased from 65% to 81% while the Al-b content decreased from 34% to 18%, and the Al-a content was almost 1% in the process. 2.1 mol.L-1 PACl with 81% Al-c was successfully prepared by DCMD method. Thus the DCMD is an effective method for preparing high concentration PACl with high Al-c content.