WASTE SMOKE TREATING AGENT AND METHOD FOR PRODUCING CEMENT BY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain a waste smoke treating agent which, when it becomes wastes, can be easily used as a cement material without carrying out a complicated calculation for proportioning raw materials and to provide a method for producing a cement by using the same as a part of the raw materials. SOLUTION: The waste smoke treating agent has a composition of 60-70 mass % CaO, 10-17 mass % SiO2, 1-5 mass % Al2O3, and 1-3 mass % Fe2O3. When the agent becomes a soot-containing one after it is used, it is washed with water and is then fed into a cement production process in the position where the temperature is in the range of 700-1,100 deg.C.