Technique to reduce the zeolite molecular sieve solubility in an

Details Technique to reduce the zeolite molecular sieve solubility in an Technique to reduce the zeolite molecular sieve solubility in an

1979-05-29

1980-12-09

Marantz, Sidney

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 46R, 210691, 252455Z, 423328, 536 1, C13K 300, C13D 312, C13K 1100, C13K 300

Patent

active

042382432

ABSTRACT:
A process for separating a component from a feed mixture comprising an aqueous solution of a mixture of different components, such as a mixture of saccharides, in which the mixture is contacted with an adsorbent comprising a crystalline aluminosilicate which selectively adsorbs a component from the feed mixture. The adsorbed component is then recovered by contacting the adsorbent with a desorbent material such as water to effect the desorption of the adsorbed component from the adsorbent. There is an undesirable tendency for the silicon constituent of the crystalline aluminosilicate to dissolve in the aqueous system. The process comprises the impregnation of the crystalline aluminosilicate with aluminum cations which substantially reduces the undesirable dissolution.

REFERENCES:
patent: 3691099 (1972-09-01), Young
patent: 3730910 (1973-05-01), Albers
patent: 3798177 (1974-03-01), Reed
patent: 3849463 (1974-11-01), Dwyer
patent: 4014711 (1977-03-01), Odawara

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