Gas separation with lithium-containing ZSM-2 metallosilicates

Details Gas separation with lithium-containing ZSM-2 metallosilicates Gas separation with lithium-containing ZSM-2 metallosilicates

1996-04-23

1998-07-14

Lewis, Michael

Gas separation: processes

Solid sorption

Including reduction of pressure

95138, B01D 5302

Patent

active

057797668

ABSTRACT:
The present invention is a method of selective adsorptively separating nitrogen from oxygen using a crystalline metallosilicate having a ZSM-2 structure with a Si/Al ratio less than 2.0 and a lithium cation exchange of at least 50%, wherein the composition has the chemical formula:

REFERENCES:
patent: 3123441 (1964-03-01), Haden, Jr. et al.
patent: 3411874 (1968-11-01), Ciric
patent: 5268023 (1993-12-01), Kirner
patent: 5415683 (1995-05-01), Leavitt
Martens, J.A., et al., "Phase Discrimination with Si MAS NMR in EMT/FAU Zeolite Intergrowths." J. Phys. Chem 1993: 5132-35.
Barrer, Richard M. And Sieber, Werner. "Hydrothermal Chemistry of Silicates. Part 21. Zeolites from Reaction of Lithium and Caesium Ions with Tetramethylammonium Aluminosilicate Solutions." J.C.S. Dalton 1977: 1,020-26.

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