Carbon-containing refractory, production method thereof, and pitch-containing refractory raw material

Abstract From the Canadian patent

A configuration in which particles of pitch 2 having a softening point in the range of 70 to 200°C and a diameter equal to or smaller than 30 µm are held on the surfaces of particles of a refractory raw material 3 having a diameter equal to or smaller than 50 µm is employed. This pitch-containing refractory raw material 1 can be used with the pitch being in a fine-particle form without any aggregation even after the long-term storage. Using it as a part of a raw material formulation allows the fine particles of pitch to be uniformly dispersed during the mixing or kneading process. The resulting carbon-containing refractory has an excellent corrosion resistance. It also provides …