Al(III) speciation distribution and transformation in high concentration PACl solutions
文献类型：期刊论文
| 作者 | Huang Li; Tang Hong-xiao; Wang Dong-sheng; Wang Shui-feng; Deng Zai-jun |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2006 |
| 卷号 | 18期号:5页码:872-879 |
| 关键词 | PACl Al-13 B value pH speciation |
| 英文摘要 | Effects of AI(III) concentration and pH on the speciation of Al(III) in polyaluminum chloride (PACI) solutions especially on the Al,, fraction were investigated. A series of PACI samples were prepared over the range of AI(III) concentration from 0.01 to 2.0 mol/L with the B (OH/Al ratio) value from 1.0 to 2.5 by forced hydrolysis of AlCl3. The samples were characterized by ferrom assay, pH and Al-27 NMR. It was shown that the AI(III) concentration had a dramatic effect on the hydrolysis processes and the species distribution of PACI was in relate to the decrease of pH. The fraction of Al species, Al-b (or Al-13) decreased and Al, increased with increase of total AI(III) concentration. Under the condition of Al(III) 2.0 mol/L, B = 2.5, the pH value was 2.73 and no Al-13 could be detected. During diluting and aging, the species distribution evolved. The Al-13 could then be detected again and the amounts increased with time. If the diluted samples were concentrated by freeze dry at -35 degrees C or heating at 80 degrees C, the pH. value and Al-13 content would decrease with the increased concentration. It demonstrated that the key factor for formation of All., in concentrated PACI was pH value. |
| WOS记录号 | WOS:000240445400007 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22966]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Huang Li,Tang Hong-xiao,Wang Dong-sheng,et al. Al(III) speciation distribution and transformation in high concentration PACl solutions[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2006,18(5):872-879. |
| APA | Huang Li,Tang Hong-xiao,Wang Dong-sheng,Wang Shui-feng,&Deng Zai-jun.(2006).Al(III) speciation distribution and transformation in high concentration PACl solutions.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,18(5),872-879. |
| MLA | Huang Li,et al."Al(III) speciation distribution and transformation in high concentration PACl solutions".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 18.5(2006):872-879. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。