研究论文
胡勇有,涂传青,高健,张小平.羟基聚合氯化铝铁溶液的形态分布特征[J].环境科学学报,2000,20(5):608-611
羟基聚合氯化铝铁溶液的形态分布特征
- Species distribution of hydroxyl polymeric aluminum-ferric chloride
- 基金项目：国家自然科学基金项目(29677004)资助
- 作者
- 单位
- 胡勇有
- 华南理工大学环境科学与工程系, 广州 510640
- 涂传青
- 华南理工大学环境科学与工程系, 广州 510640
- 高健
- 华南理工大学环境科学与工程系, 广州 510640
- 张小平
- 华南理工大学环境科学与工程系, 广州 510640
- 摘要：采用改进的AlFeFerron逐时络合比色法定量研究了HPAFC的形态分布, 结合酸解聚实验和酸反滴定实验结果, 描述了其形态分布特征.在碱化度B为10-20内, nAl/nFe=9∶1时, 单体和二聚体[Al+Fe]a达20%-60%;nAl/nFe=5∶5时达30%-50%.nAl/nFe=9∶1时, 中间多核羟基络合物[Al+Fe]b达20%-55%;nAl/nFe=5∶5时达5%-20%.nAl/nFe=9∶1时, 溶胶[Al+Fe]c达15%-35%;nAl/nFe=5∶5时达30%-50%.HPAFC的形态是间断分布.
- Abstract：The species distribution of hydroxyl polymeric aluminum-ferric chloride (HPAFC) was quantitatively studied with improved Al-Fe-Ferron time-colorimetric procedure, acid depolymerization and continuous acid reverse titration experiments and the species distribution of HPAFC was described.When basicity was in the range of 1.0-2 0, the monomer and dimer [Al+Fe]a were 20%—60% for nAl/ nFe =9∶1 and 30%—50% for nAl/ nFe =5∶5;the intermediate multinuclear complex compounds [Al+Fe]b were 20-55% for nAl/ nFe =9∶1 and 5%—20% for nAl/ nFe =5∶5;and the sol [Al+Fe]c were 15%—35% for nAl/ nFe =9∶1 and 30%—50% for nAl/ nFe =5∶5.The species distribution characteristics of HPAFC were discontinuty.
- Key words：Hydroxyl polymeric aluminum-ferric chloride species distribution time complexcolorimetric procedure
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