【摘要】 用共沉淀／热结晶法制备了尖晶石型金属复合氧化物ＬｉＡｌＭｎＯ４，用Ｘ－射线衍射、ＤＴＡ—ＴＧ分析、ＦＴ—ＩＲ光谱、ｐＨ滴定和Ｋｄ测定研究了该化合物的Ｌｉ＋抽出、嵌入及离子交换性质。研究表明，Ｌｌ＋的抽出／嵌入过程主要是离子交换，为局部规整反应；该化合物酸处理产物对Ｌｉ＋的交换容量约４．５ｍｍｏｌ／ｇ，对Ｌｉ＋显示了记忆性离子筛效应。更多还原

【Abstract】 Lithium-aluminum-manganese oxide (LiAlMnO4), a spinel-type metal oxide, was prepared by a coprccipation / thermal crystallization method. The Li+ extraction / inserhon with this material were investigated by X-ray, DTA-TG analyses, FT-IR spectroscopy, pH titration, and Kd measurement. The chemical analysis showed that the Li+ extraction / insertion be progressed mainly by an ion-exchange mechanism. It’s the topotactic reaction. The acidtreated samples had an ion exchange capacity (IEC) of 4.5mmol/g for Li+. It had a memorial ion-sieve property for Li+.更多还原