| abstract |
The invention relates to a refractory batch and to a process for its production. The batch comprises a refractory metal oxide main component containing Al 2 O 3 ; the refractory metal oxide main component containing 40 to 60% by weight of Al 2 O 3 ; a phosphate bond, in particular, the phosphate bond being produced by at least one of a phosphoric acid and a monoaluminum phosphate; finely particulate SiC having a grain size of <0.2 mm, the batch containing 3 to 15% by weight of the finely particulate SiC; and the grain size distribution of the SiC being selected so that more than 2.0% of the SiC, based on a total quantity of the batch, is <0.045 mm, whereby said batch excludes the presence of boron phosphate. |