Patent ID: 8030236
Filing Date: 2011-10-04
Classification: C04B

Abstract:
1. A coarse-ceramic refractory batch (mix) comprising: a) at least one granular, refractory, mineral basic main component comprising one of an MgO- and a MgO and CaO-based refractory material and b) at least one granular, refractory, mineral, MgO-based, spinel-free elasticizing additive in a form selected from a group consisting of: whereby the additive being present in the batch (mix) in an amount which elasticizes the main component; and wherein said main component is present with the following particle size distribution, preferably in combination with the additive in a particle size distribution of a typical Fuller curve: 1-8 mm: from 20 to 50% by weight, in particular from 45 to 50% by weight, 0.25-1 mm: from 10 to 30% by weight, in particular from 15 to 20% by weight, <0.25 mm: from 20 to 60% by weight, in particular from 25 to 30% by weight.