白庙子斜发沸石水热离子交换性能研究  

Study on the Hydrothermal Cation Exchange of Baimiaozi Clinoptilolite

作　　者：陈铁旦[1] 苗茵[1] 李曼尼[1] 

机构地区：[1]内蒙古大学化学化工学院,呼和浩特010021

出　　处：《内蒙古大学学报（自然科学版）》2006年第6期646-650,共5页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家自然科学基金(29867001)资助

摘　　要：研究了白庙子斜发沸石在水热离子交换中阳离子交换容量、配位阳离子交换度及K+、N a+、C a2+离子在该矿样上的交换量.实验发现,该矿铵离子交换容量为1.73 mm o l/g,配位阳离子交换度C a2+>K+>M g2+>N a+.在铵改性矿样NH4Z上K+离子属超容量交换,交换量达78.2 m g/g,对海水提钾有应用价值.在不同离子交换矿样上C a2+交换量NH4Z>N aZ>KZ>O rZ,在钠改性矿样N aZ上C a2+离子交换量可达32.4 m g/g,对硬水软化有应用价值.The cation exchange capacity, the exchange degrees of coordinated cations and the exchange amounts of K^＋ ,Na^＋ ,Ca^2＋ in Baimiaozi Clinoptilolite were studied by using hydrothermal cation exchange technology. The results showed that the exchange capacity of ammonium cation was 1.73 mmol/g and the exchange degree of coordinated cations was Ca^2＋〉K^＋〉Mg^2＋ 〉Na^＋. The exchange amount of K^＋ was 78.2 mg/g belonging to the super capacity exchange in NH4^＋ modified sample,and the exchange amount of Ca^2＋ was 32. 4 mg/g in Na^＋ modified sample. Baimiaozi clinoptilolite can be applied in the K^＋ abstraction from seawater and softening of hard water.

关 键 词：斜发沸石 水热离子交换 配位阳离子交换度 阳离子交换量 

分 类 号：P578.971[天文地球—矿物学]