C - Chemistry – Metallurgy – 10 – B
Patent
C - Chemistry, Metallurgy
10
B
202/11
C10B 45/02 (2006.01) C10B 57/04 (2006.01)
Patent
CA 1146903
METHOD FOR MANUFACTURE OF BLAST FURNACE COKE FROM BLENDED COAL PREPONDERANTLY CONTAINING LOW GRADE COAL ABSTRACT OF THE DISCLOSURE Blast furnace coke allowed to contain low grade coal in a notably higher blending ratio is manufactured by a method which comprises blending not less than 60% of blended coal having an adjusted total moisture content of not more than 4% with not more than 40% of briquettes and carbonizing the resultant mixture. The blended coal essentially consists of not less than 80% of coking coal and not more than 20% of low grade coal. When coking coal of a kind which has segregated the coking property according to grain size distribution is pulverized and clas- sified by sifting and the portion of fine particles is used as mixed with the coking coal, the blending ratio of the low grade coal in the blended coal can be increased up to 35%. The briquettes essentially consist of not less than 10% of coking coal and not more than 90% of low grade coal.
351923
Kubo Keiji
Takahashi Hiromichi
Tsuyuguchi Michio
Kirby Eades Gale Baker
Sumikin Coke Company Limited
Sumitomo Metal Industries Ltd.
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