氯氧化锆废弃物制备层状硅酸钠的研究  

Study on preperations of crystalline layered sodium disilicate with wastes of zirconium oxychloride

作　　者：李国昌[1] 王萍[1] 

机构地区：[1]山东理工大学材料学院,淄博255091

出　　处：《环境工程学报》2009年第5期897-901,共5页Chinese Journal of Environmental Engineering

摘　　要：以氯氧化锆生产中排放的废弃物碱性废水和酸性硅渣为主要原料制备了层状硅酸钠。研究了不同工艺条件下样品的基本性能。结果表明，碱性废水和酸性硅渣为主要原料，可制备出性能良好的层状硅酸钠。其晶型主要为6型，钙离子交换容量（CEC）可达270nlg／g，pH在11～12之间，完全满足洗涤助剂的基本要求。此方法为氯氧化锆废弃物的综合利用提供了一条新途径。Crystalline layered sodium disilicate was prepared with wastes of zirconium oxychloride. The basic properties of crystalline layered sodium disilicate in different technology were studied. The results showed that the wastes of zirconium oxychloride can be made into crystalline layered sodium disilicate with good proper- ties. Its main crystal form was δ form, the calcium ion exchange capacity was 270 mg/g, the pH value was 11-12, and the properties can meet the demand of detergent builder. This technique provided a new route for the integrated use of wastes of zirconium oxychloride.

关 键 词：氯氧化锆 废弃物 层状硅酸钠 钙离子交换容量 洗涤助剂 

分 类 号：X705[环境科学与工程—环境工程]