深海锰结核改性吸附锂离子的试验研究  

STUDY ON MODIFICATION OF DEEP-SEA MANGANESE NODULES TO ADSORB LITHIUM ION

作　　者：范艳青[1] 蒋训雄[1] 汪胜东[1] 赵磊[1] 冯林永[2] 

机构地区：[1]北京矿冶研究总院,北京100044 [2]昆明理工大学,昆明650093

出　　处：《矿冶》2008年第3期41-45,共5页Mining And Metallurgy

基　　金：国家自然科学基金项目(50474077);中国大洋协会资助项目(DY105-04-01-13)

摘　　要：深海锰结核和锂盐通过固相合成反应制备锂离子筛前驱体,通过酸洗转型得到离子筛。该离子筛的成功合成在以天然矿物制备锂离子筛方面取得突破,对深海锰结核的非冶炼利用,开发功能材料具有重要意义。锂离子筛的静态饱和吸附容量为19.5mg/g,Li+的离子分配系数Kd值远大于其他碱金属及碱土金属离子的Kd值,锂钾、锂镁、锂钙等的分离因数非常大,具有很高的选择性。The precursor of lithium ion sieve is composed by solid-phase synthesis reaction using deep-sea manganese nodules and lithium salt. The ion sieve is obtained by washing precursor with acid. That is a breakthrough in producing ion sieve with natural mineral. It is of great significance in non-smelting and development of functional materials for manganese nodules. The static saturated absorption capacity of ion sieve is up to 19.5 mg/g. The Ka（distribution coefficient of Li^＋ ） is far bigger than the Ka of alkaline metals and alkaline earth metals. The separation factors are very big between lithium and potassium, magnesium, calcium et al, which means a very high selectivity.

关 键 词：深海锰结核 离子筛 锂 吸附 

分 类 号：TF521.6[冶金工程—钢铁冶金]