Patent ID: 9457337
Filing Date: 2016-10-04
CPC Classification: B01J,C01B

Claim Text:
1. A material for purification of a fluid feed stream comprising a zeolite adsorbent having a silica to alumina ratio of less than or equal to 4:1, and partially ion exchanged with either a first low range or second high range of lithium charged balancing cations and/or a mixture of the two wherein said zeolite has pores defined by ring structures comprising at most 10 tetrahedrally coordinated atoms of the silicon and/or aluminum types having an oxygen to argon selectivity greater than or equal to a ratio of 3:1 and an oxygen capacity of greater than or equal to 10 weight percent, wherein said oxygen capacity is measured at a pressure in the range of about of about 9-10 Torr and a temperature of 77 degrees Kelvin after 4 hours of equilibration time and wherein said oxygen to argon selectivity is obtained by dividing said oxygen capacity by said argon capacity of said adsorbent measured at a pressure in a range of about 697-700 Torr and a temperature of 87 degrees Kelvin after 8 hours of equilibration time.