Silica-bound calcium-containing zeolite a granulate

Details Silica-bound calcium-containing zeolite a granulate Silica-bound calcium-containing zeolite a granulate

1988-05-11

1990-08-21

Stoll, Robert L.

Gas separation

Means within gas stream for conducting concentrate to collector

55 75, 423328, 502 65, 502407, 502414, B01D 5314, C01B 3328

Patent

active

049503120

ABSTRACT:
A SiO.sub.2 -bound, substantially carbonate-free, calcium-containing zeolite A granulate in which the calcium content is 0.4 to 1 mole CaO/mole Al.sub.2 O.sub.3 and a process for the production such SiO.sub.2 -bound calcium exchanged zeolite A granulate in a CO.sub.2 -free atmosphere at temperatures of 350.degree. C. to 700.degree. C. The SiO.sub.2 -bound zeolite granulate A being useful as an adsorbent in the recovery of oxygen by the pressure change adsorption process.

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G. Reiss, Chem. Ind., XXXV, Nov. 1983, pp. 689-692.
Bauer et al., "New Selective Sorbents: Porous Crystals as Molecular Filters", British Chemical Engineering, May 1959, pp. 267-279.

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