Patent ID: 8221717
Filing Date: 2012-07-17
Classification: B01D,B01J,C01B

Abstract:
1. A process for exchanging cations in an aluminosilicate, comprising: a. providing an ion-exchangeable aluminosilicate comprising a zeolite or a sodalite and a first cation associated with the zeolite or the sodalite as a counter ion; b. providing a second cation source comprising a second cation different from the first cation, wherein the second cation is selected from an alkali metal, an alkaline earth metal, an actinide, aluminum, gallium, indium, thallium, silicon, germanium, tin, lead, arsenic, antimony, and bismuth; c. providing an exchange solvent comprising a polyalkylene oxide glycol, a polyalkylene oxide glycol monoether, a polyalkylene oxide glycol diether, or any combination thereof; and d. combining the ion-exchangeable aluminosilicate and the second cation source in the exchange solvent under ion exchange conditions, to provide a mixture comprising the ion-exchanged aluminosilicate comprising the second cation associated with the zeolite or the sodalite as a counter ion; wherein: when the aluminosilicate comprises Zeolite Y, the second cation source comprises a cation different from Li when the aluminosilicate comprises Zeolite ZMS-5, the second cation source comprises a cation different from Li when the aluminosilicate comprises Zeolite L, the second cation source comprises a cation different from Ba