【作者】 王瑞芬； 张胤；

【Author】 WANG Ruifen,ZHANG Yin (College of Rare Earth,Inner Mongolia University of Science and Technology,Baotou 014010)

【机构】 内蒙古科技大学稀土学院；

【摘要】 以铝粉、AlCl₃·6H₂O、稀土氯化物、稀土硝酸盐和蒸馏水为原料,通过调整原料配比、反应温度和陈化时间,经蒸发、结晶制备了一种高Al₁₃含量的PAC和两种新型铝基稀土复合絮凝剂,分别采用粉末XRD法和化学分析法对产物进行了表征.分析结果表明,自制PAC组成为5AlCl₃·8Al（OH）₃·37.5H₂O(以下简记为Al₁₃)和AlCl₃·6H₂O,新型铝基稀土复合絮凝剂的组成中除Al₁₃和AlCl₃·6H₂O外,还有原料稀土化合物,稀土化合物的加入对于絮凝剂中聚铝的化学组成基本没有影响,但对其结晶过程和结构有一定影响.更多还原

【Abstract】 A kind of high Al₁₃ content PAC and two new rare earth composite polyaluminum flocculants have been made with aluminum powder,aluminum chloride and distilled water. According to adjusting configuration of raw materials,the reaction temperature and the aging time,after evaporating and crystallizing,the polyaluminum acquired.The polyaluminum chloride is characterized by means of XRD,chemical analysis.The results show the composition of PAC is 5 AlCl₃·8Al（OH）₃·37.5H₂O and AlCl₃ 6H₂O,and the composition of the new Rare Earth composite polyaluminum flocculants is 5 AlCl₃·8Al（OH）₃·37.5H₂O,AlCl₃ 6H₂O and raw material rare earth compound,the addition of rare earth compound has no influence on the chemistry composing of polyaluminum form of the flocculants but has some influence on the crystal process and structure of the polyaluminum flocculants.更多还原