煤矸石酸溶法制得聚合氯化铝铁钙的形态  

Morphology of PAFCC Prepared by Coal Gangue Leaching Method

作　　者：何丽莉[1] 徐新阳[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2013年第10期1477-1480,1484,共5页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51078604)

摘　　要：利用扫描电镜、X射线能谱、红外光谱、X射线衍射等现代分析检测技术对聚合氯化铝铁钙(PAFCC)进行形态结构研究与表征.比较了未煅烧合成产品和经煅烧合成的PAFCC产品形貌、特征基团及微晶相结构.结果表明:煅烧有利于制备聚合氯化铝铁钙;未煅烧合成产品是具有短柱状晶体形貌,主要含有钠、铝、铁、钙、氯等元素的化合物;PAFCC形貌呈类空心管柱状结晶体,是一种含有钙、铝、铁多羟基的无机高分子絮凝剂;煅烧使煤矸石活性增强,对合成PAFCC起了重要作用;在高岭土废水水样混凝实验中,制得的PAFCC混凝性能优于未煅烧合成产品和工业聚合铝(PAC).The morphological structure and characterization of the polymeric aluminum ferric chloride calcium （PAFCC） flocculant were studied using TEM, EDS, IR spectroscope and X-ray diffraction analysis techniques. The morphology, feature groups and microcrystalline phase structure of noncalcined synthetic products and calcined synthetic PAFCC products were compared. The results showed that the calcined products are silicic acid （aluminum） substance with high activity and the noncalcined synthetic products are compound mainly contained sodium, aluminium,iron, calcium, chlorine and other elements with short columnar crystal morphology. PAFCC has hollow tube of columnar crystals morphology and it is an inorganic polymer which has chloride, aluminum ferric polyhydroxy. The calcination process enhanced coal gangue activity and played an important role in the synthesis process of PAFCC. Using kaolin wastewater, the coagulation effect of PAFCC is superior to that of noncalcined synthetic products and PAC.

关 键 词：形态 特征基团 结构 微晶相 聚合氯化铝铁钙 

分 类 号：X705[环境科学与工程—环境工程]