Refractory composition and process for the repair of a hot refractory wall

摘要

The present invention relates to refractory composition consisting essentially of 40-90 dry weight % of amorphous silica aggregates, up to 40 dry weight % of alumina based compounds, 10-15 dry weight % of clay, 0.2-2.0 dry weight % of a chemical binder and further containing 2 to 8 % of water. <??>These compositions are particularly useful for the repair of coke oven damaged wall in a gunning process.