1. Gas Separation by Adsorption Processes;Yang,1997
2. C.C. Chao. Process for Separating Nitrogen from Mixtures Thereof with Less Polar Substances. US Patent. 1989, 4,859, 217.
3. Size effects of extraframework monovalent cations on the thermal stability and nitrogen adsorption of LSX zeolite;Fan;Microporous Mesoporous Mater.,2015
4. C.G. Coe, J. F. Kirner, R. Pierantozzi, T. R. White. Nitrogen Adsorption with a Ca and/or Sr Exchanged Zeolite. US Patent. 1992, 5, 152, 813.
5. C. G. Coe, J. F. Kirner, R. Pierantozzi, T. R. White. Nitrogen Adsorption with a Divalent Cation Exchanged Zeolite. US Patent. 1993, 5, 258, 058.