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    • 50. 发明专利
    • Manufacturing method of coke for blast furnace
    • 用于烤炉的焦炭制造方法
    • JP2009227929A
    • 2009-10-08
    • JP2008078225
    • 2008-03-25
    • Nippon Steel Corp新日本製鐵株式会社
    • FUJIOKA YUJISAITO KOUJIKATO KENJI
    • C10B57/04C10C1/18C10C3/08
    • PROBLEM TO BE SOLVED: To provide a method of improving caking capacity of a raw material coal and obtaining cheaply a high-strength coke for blast furnace by adding a good binder to the raw material coal by effectively making use of only the components having an effect on caking capacity out of components constituting coal tar and/or coal tar pitch. SOLUTION: In the method of manufacturing the coke for blast furnace by adding a binder into a blended coal containing 20-60 mass% of a non- or slightly-caking coal, mixing them and then carbonizing in a coke oven, a substance is added, as the binder, into the blended coal in an amount of 0.5-10 mass%. Herein, the substance is obtained by dissolving one or more of coal tar, a coal tar heavy fraction and coal tar pitch in an alcohol solvent, separating into an alcohol-soluble substance containing aromatic carbonyl compounds and an alcohol-insoluble substance, the other portion, and making the alcohol-insoluble substance the binder. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种提高原料煤的结块能力的方法,并且通过仅利用组分来增加原料煤中的良好粘合剂,便宜地获得高炉焦炭的高强度焦炭 对构成煤焦油和/或煤焦油沥青的组分的结块能力有影响。 解决方案:在通过向含有20-60质量%的非结晶或轻微结块煤的混合煤中加入粘合剂的方法制造高炉焦炭的方法,将它们混合,然后在焦炉中碳化, 将作为粘合剂的物质以0.5〜10质量%的量添加到混合煤中。 这里,通过将煤焦油,煤焦油重馏分和煤焦油沥青中的一种或多种溶解在醇溶剂中,分离成含有芳香族羰基化合物的醇溶性物质和醇不溶性物质而得到, ,并使该醇不溶性物质成为粘合剂。 版权所有(C)2010,JPO&INPIT