process for the production of sorbierenden compositions

摘要

A process is provided comprising: (a) contacting (i) at least one zinc component, where said zinc component comprises zinc oxide, or a compound convertible to zinc oxide, (ii) at least one silica component, where said silica component comprises silica, or a compound convertible to silica, (iii) at least one colloidal oxide component, and (iv) at least one pore generator, to form a moist composition, where said moist composition has a moisture content from about 22 to about 33 weight percent based on the weight of said moist composition; (b) extruding said moist composition to form an extruded, moist composition where said extruded, moist composition has a moisture content from about 22 to about 33 weight percent based on the weight of said extruded, moist composition; and (c) sphering said extruded, moist composition to form a sphered, extruded, moist composition that has a particle size from about 0.5 to about 15 millimeters.