| 摘要 |
PROBLEM TO BE SOLVED: To produce a coke having high strength even by the use of a large amount of non-or slightly caking coal by decreasing the content of light component of chamber oven tar by solvent extraction, adding the treated tar to metallurgical coal containing a specific amount of non- or slightly caking coal, charging the mixture into a coke oven and carbonizing in the oven. SOLUTION: A chamber oven tar is extracted with a solvent to decrease the content of light components preferably to 6-15 wt.% of toluene-insoluble component and 3-8 wt.% of quinoline-insoluble component. The treated tar is added and mixed to a metallurgical coal containing 0-70 wt.% of non or slightly caking coal. The mixture is charged into a coke oven 6 and carbonized to obtain the objective coke.
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