Drying process using chabazite-type adsorbents

Details Drying process using chabazite-type adsorbents Drying process using chabazite-type adsorbents

1985-12-12

1987-05-05

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

55 35, 55 75, 210689, B01D 1504, B01D 5302

Patent

active

046630520

ABSTRACT:
A process for the removal of water and other polar compounds from an acidic stream containing water and at least one acid compound comprising contacting the acidic stream with an adsorbent comprising a chabazite-type zeolite wherein said adsorbent has a M.sub.2 O/Al.sub.2 O.sub.3 mole oxide ratio of at least 0.5 where "M" is at least one cation selected from the group consisting of potassium, rubidium and cesium.

REFERENCES:
patent: 3224167 (1965-12-01), Jones
patent: 3720041 (1973-03-01), Alvarez et al.
Barrer, R. M. et al., "Synthetic Chabazites: Correlation between Isomorphous Replacements, Stability, and Sorption Capacity", (1956), pp. 2892-2903.
Passaglia, E., "The Crystal Chemistry of Chabazites", The American Mineralogist, vol. 55, pp. 1278-1301 (1970).
Kraychy, P. N. et al., "Molecular Sieves Dehydrate High-Acid Gas at Pine Creek", Oil and Gas Journal, (1966).
Collins, J. J., "A Report on Acid-Resistant Molecular Sieve Types AW-300 and AW-500", Oil and Gas Journal (1963).
Material Safety Sheet M-4679-A, Union Carbide Corp., Aug. 1984.
Sherman, John D., "Ion Exchange Separations with Molecular Sieve Zeolites", 83rd National Meeting, American Institute of Chemical Engineers, Houston, Texas, Mar. 20-24, 1977.

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