| 摘要 |
Refractory material based on mineral fillers, coal or coke and a solvent, and opt. contg. reactive resins and plasticisers, also contains 3-20 wt % distn. and/or oxidn. residue (I) obtd. from the prodn. of dimethyl terephthalate. Ratio of (I) to reactive resin is 1-10:1. Pref. the distn. (I) has an acid value of is not >30 and a melting range of 40-60 degrees C and its graphitisable carbon contentin a reducing atmos. is 65-75 wt %. Pref. the oxidn. (I) has an acid value of 40-100 and a melting range of 50-90 degrees C and its graphitisable carbon content in a reducing atmos. is 70-80 wt %. Used as a stopping material for tapholes in blast furnaces, refractory lining for channels and repair material for refractory linings in blast furnace. |
