JPS5462201A - Cob coal for production of metallurgical coke - Google Patents
Cob coal for production of metallurgical cokeInfo
- Publication number
- JPS5462201A JPS5462201A JP12820077A JP12820077A JPS5462201A JP S5462201 A JPS5462201 A JP S5462201A JP 12820077 A JP12820077 A JP 12820077A JP 12820077 A JP12820077 A JP 12820077A JP S5462201 A JPS5462201 A JP S5462201A
- Authority
- JP
- Japan
- Prior art keywords
- less
- coal
- cob
- production
- substance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: The title cob coal suitable for production of metallurgical coke by carbonization in a coke oven, containing a small amount of a caking coal and a bituminous substance as a main coke net work component, and as much as 10W70 wt.% of a slightly or non-caking coal and a carbonaceous substance.
CONSTITUTION: A cob coal for production of metallurgical coke having a volatile content in the range of not less than 25 and less than 45% d, and a density not less than 0.90 g/cm3, consisting of (A) not less than 20 and less than 85 wt.% of coal having a volatile content not less than 16% d and a Gieseler fluidity (M.F.) not less than 5 D.D.P.M.(Dial Division per Minute), (B) less than 70 wt.% of a slightly or non-caking coal and/or a carbonaceous substance having a Gieseler fluidity (M.F.) less than 5 D.D.P.M., and (C) 3W15 wt.% of a bituminous substance having a softening point lower than 75°C, and (D) less than 45 wt.% of a bituminous substance having a softening point not lower than 75°C and lower than 300°C as binders. The bituminous substances react with coal of a main component in a carbonization process to promote softening of the cob coal, and the cob coal is softened and collapsed to give an ordinary cob coal.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12820077A JPS5462201A (en) | 1977-10-27 | 1977-10-27 | Cob coal for production of metallurgical coke |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12820077A JPS5462201A (en) | 1977-10-27 | 1977-10-27 | Cob coal for production of metallurgical coke |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5462201A true JPS5462201A (en) | 1979-05-19 |
Family
ID=14978932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12820077A Pending JPS5462201A (en) | 1977-10-27 | 1977-10-27 | Cob coal for production of metallurgical coke |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5462201A (en) |
-
1977
- 1977-10-27 JP JP12820077A patent/JPS5462201A/en active Pending
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