PROCESS FOR INCREASING THE ACTIVITY OF ZEOLITE CONTAINING PARTICULATE SOLIDS

摘要

A process for increasing the activity of a zeolite-containing particulate solid contain- ing contaminants which block the pores of the zeolite and adversely affect the activity thereof wherein the contaminated zeolitic ma- terial is slurried with a liquid containing an acid, detergent or surfactant, the slurry is ag- itated to liberate the pore-blocking contami- nants from the zeolite pores so that they are suspended in the liquid, a portion of the liq- uid is withdrawn from the slurry and filtered to remove the suspended contaminants, the resulting liquid is returned to the slurry, and the treated zeolite-containing particulate solid is removed from the solution and recovered.