Ion-exchange resin, macroreticular

Schulz, W. W. Macroreticular Ion Exchange Resin Cleanup of Purex Process Solvent U.S. Atomic Energy Commission Report ARH-SA-58, Atlantic Richfield Hanford Co. Richland, Washington 1970. 

The use of Nafion/silica composites and zeolite catalysts in this kind of reaction has been studied. These composites containing different amounts of Nafion catalyst are compared with the original material and with Amberlyst 15, a well known macroreticular ion-exchange resin, which achieves remarkable results in several acid catalyzed reactions (81). 

K 9. — — The pore structure of macroreticular ion exchange resins. Symposium... 

K 12. — Macroreticular ion exchange resins. II. Utilization in water conditioning. Amber-hi-lites No. 79 (1964). 

R. Kunin, Pore Structure of Macroreticular Ion-Exchange Resins , in Ion Exchange in the Process Industries , Society of Chemical Industry, London, 1970, p. 10. 

Extensive studies in the laboratory and in the field verified the excellent boron selectivity of this ion-exchange resin however, some serious deficiencies in kinetics and physical stability were encountered. More recently an analog of this product, Amberlite XE-243 (Amberlite XE-243 is now commercially available under the designation Amberlite IRA-943), based upon a macroreticular styrene-divinylbenzene, was developed which overcame these deficiencies. The difference between the two structures is only physical. The macroreticular structure of the new boron-selective ion exchanger is similar to that of other macroreticular ion-exchange resins that have been previously described (2, 3). 

In contrast to the microreticular or gel-type ion-exchange resins, the macroreticular ion-exchange resins possess a pore structure superimposed... 

Kun Kenneth A., and Kunin Robert. Pore structure of some macroreticular ion exchange resins. J. Polym. Sci. Part B. 2 no. 8 (1964) 587-591. 

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