Patent ID: 7708957
Filing Date: 2010-05-04
Classification: B01J,C04B,F23G

Abstract:
1. A chemical processing apparatus comprising a plurality of ceramic media formed at a sintering temperature, said media arc physically distinct and readily separable from one another after thermal cycling in the apparatus from a first temperature that is less than the media's sintering temperature to a second temperature which is at least 50° C. higher than the media's sintering temperature and then back to the first temperature, wherein said media comprises MgO, SiO 2 and Al 2 O 3 , said MgO is between 48 and 78 percent by weight, said SiO 2 is between 5 and 30 percent by weight and said Al 2 O 3 is between 5 and 30 percent by weight of said media and wherein said media's porosity is between 24 percent and 38 percent based on media's apparent volume.