Adsorptive Separation of N2 and Ar by some Zeolites Exchanged with Ca2+
Guan Li-Li;Duan Lian-Yun;Xie You-Chang
Acta Phys. -Chim. Sin. . 2002, (11): 998 -1004 .  DOI: 10.3866/PKU.WHXB20021108