MOLECULAR SIEVE AND PROCESS FOR MAKING THE SAME

摘要

1424501 Adsorbent for separating oxygen and nitrogen BERGWERKSVERBAND GmbH 4 Feb 1974 [3 Feb 1973] 05128/74 Heading B1L [Also in Divisions Cl C6 and C7] O 2 and N 2 are separated using a carboncontaining molecular sieve produced by a method which comprises the steps of providing porous coke and depositing an organic substance with a b.p. of between 200 and 300‹C in the pores to reduce their size, preferably to between 0.2 and 0.6 mÁ.