Small-pored crystalline titanium molecular sieve zeolites and th

Details Small-pored crystalline titanium molecular sieve zeolites and th Small-pored crystalline titanium molecular sieve zeolites and th

1998-12-11

2000-05-30

Spitzer, Robert H.

Gas separation: processes

Solid sorption

Inorganic gas or liquid particle sorbed

95 96, 95117, 95138, 95902, 423331, 423598, 423718, B01D 5304

Patent

active

060686820

ABSTRACT:
Novel gas separation agents with precisely and predictably controlled pore sizes within the range of 3-4 Angstrom units and their preparation from ETS-4 by exchange with cations, particularly multivalent cations such as strontium followed by drying and calcination to effect controlled pore shrinkage is disclosed. These novel materials have utility in gas separation processes particularly the separation of nitrogen from a mixture of the same with methane.

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Naderi et al., "Phase transformation of microporous titanosilicate ETS-4 into narsarsukite", Zeolites vol. 17 437-443, (1996).
Philippou et al., "Structural investigation of ETS-4", Zeolites vol. 16, 98-107 (1996).
Zeolite Molecular Sieves, Donald W. Breck, Krieger Publishing Company, Malabar, Florida, 1984, p. 636.
Kuznicki et al., "Synthesis and Adsorptive Properties of Titanium Silicate Molecular Sieves", from Synthesis of Microporous Materials--molecular sieves vol. 1, 427-453 (1992).

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