| 摘要 |
An industrial shaped adsorbent for the non-cryogenic separation of gases from air, comprising from 70 to 95% by weight zeolites, and, correspondingly, from 30 to 5% by weight of a clay binder, (a) said zeolites consisting essentially of mixtures of X and A zeolites having an X crystallinity greater than or equal to 95% and an A crystallinity less than or equal to 5%, a toleune standard adsorption of 23+/-1% and an X-ray spectrum characteristic of a practically pure faujasite, and with the Si/Al ratio of the crystalline component being 1+/-0.03, and (b) with the adsorbent having a 2Ca/Al ratio between about 80 and 99%, a nitrogen adsorption between 16 and 23.5 L/kg and a ratio of the nitrogen to the oxygen adsorption capacities under 1 bar between 3.5 and 4.5 and the process of making such adsorbents.
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