Separatory process using organic bound adsorbents

Abstract

Abstract A process for separating a component from a feed blend comprising an aqueous solution of a mixture of different components, such as a blend of saccharides. In the process the blend is contacted with an adsorbent comprising a crystalline aluminosilicate and cation exchange resin mixture which selectively adsorbs a component from the feed blend. 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 a crystalline aluminosilicate to dissolve in an aqueous system and for the volume of a cationic exchange resin to change with the ionic strength of an aqueous medium. The adsorbent of this invention is dispersed in a binder material comprising a water permeable organic polymer and the effect is a substantial reduction of the undesirable dissolution and volume changes. The adsorbent is manufactured by mixing together powder of the crystalline aluminosilicate, powder of the cationic exchange resin, powder of the organic polymer binder, and a liquid organic solvent, extruding the mixture into an extrudate and drying the extrudate.

Inventors

• 👤 Santi Kulprathipanja
• 👤 Armand J. DERosset

Bibliographic Details