| 摘要 |
<p>The method of separating krypton-xenon concentrate from air, containing 1-46 per cent by volume of krypton, 0.1 - 4 per cent by volume of xenon, 94.9 - 46 per cent by volume of nitrogen, not more than 2 per cent by volume of oxygen, and not more than 2 per cent by volume of hydrocarbons, consists in that air at a temperature of 90-110 DEG K is passed through adsorbents having the same temperature, the size of the inlet openings in the voids of the adsorbent being from 5 to 150 A. Xenon, krypton, nitrogen, oxygen, and hydrocarbons are adsorbed on this material and then said gases are desorbed from it by increasing stepwise the temperature from 90 DEG -110 DEG K to 250 DEG -280 DEG K in the course of from one to three hours and from 250-280 DEG K to 500-650 DEG K in the course of from 2 to 4 hours.</p> |
