| abstract |
Hollow ceramic bodies are produced by coating a combustible or thermally decomposable organic body with a ceramic-binder combination, and heating at 200-2000 degrees C so that the organic body is removed, the binder is removed or incorporated into the ceramic material, and the latter is sintered. The hollow ceramic body is used as a catalyst carrier having reduced wieght and heat capacity compared with conventional, plain ceramic catalyst carriers. The hollow ceramic bodies can also be used as thermal insulators, heat carriers, additives for building materials, filling bodies for exchange towers or fractionating columns, etc. |