采用水溶液离子交换法制备了锂离子和其它多价阳离子混合交换的13X分子筛,并测定了这些二元离子交换分子筛在25.C下的氮和氩的吸附等温线.研究发现,经二元离子交换的MgLiX、ZnLiX、NiLiX和LaLiX分子筛对氮的吸附能力和对氮氩的吸附分离能力都低于LiX分子筛,且随着多价离子在分子筛中的含量增加,分子筛的氮氩分离性能变差.说明在LiX和实验所制得的各种二元离子交换的分子筛中,LiX分子筛仍是最好的氮氩分离吸附剂.
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