工业稀盐酸和铝酸钙制取结晶氯化铝研究  

STUDY ON THE PREPARATION OF CRYSTALLINE ALUMINUM CHLORIDE FROM INDUSTRIAL DILUTE ACID AND CALCIUM ALUMINUM

作　　者：刘邦煜[1] 王宁[1] 石莉[1] 凌宏文[1] 陈娟[1] 田元江[1] 

机构地区：[1]中国科学院地球化学研究所地球深部物质与流体作用实验室

出　　处：《地球与环境》2008年第3期266-269,共4页Earth and Environment

基　　金：中国科学院科技支黔项目;固体废物处理与资源化省部共建教育部重点实验室(西南科技大学)开放基金项目

摘　　要：通过对常压下采用工业稀盐酸和铝酸钙制备结晶氯化铝净水剂的试验研究,考察了铝酸钙低浓度盐酸浸取时原料配比、浸出时间、浸出温度对三氧化二铝溶出率的影响,并对三氯化铝结晶阶段的机理进行了探讨,实验结果表明低浓度工业废酸可以用于制备结晶氯化铝。项目研究成果为低浓度工业废盐酸的处置与利用提供了新的思路。Experimental study was conducted on the preparation of crystalline aluminum chloride from industrial diluted hydrochloric acid and calcium aluminates under atmospheric pressure condition. Influences of the dosage of hydrochloric acid, extracting time and extracting temperature on the extracting rate were examined, and the mechanism of aluminum chloride＇s crystallization was investigated as well. Experimental results showed that low-concentration industrial waste acid can be used for the preparation of crystalline aluminum chloride. This research opens up a new approach for the disposal and utilization of industrially spent acids of low concentrations.

关 键 词：结晶氯化铝 净水剂 盐酸 铝酸钙 

分 类 号：X78[环境科学与工程—环境工程]