REFRACTORY COMPOSITION AND REFRACTORY

摘要

PROBLEM TO BE SOLVED: To obtain a refractory improved in spalling resistance without lowering corrosion resistance as compared to conventional refractories and to obtain a composition suitable for obtaining the refractory. SOLUTION: This refractory composition contains a refractory filler, carbon and a binder. The binder is a mixture of 40-80 wt.% undenatured phenol resin and 60-20 wt.% alkyl-denatured phenol resin which gives residual carbon in an amount of >=15 wt.% when it is heated to 750 deg.C. The refractory is obtained by heating the refractory composition.