Invention Application
- Patent Title: FERROCOKE MANUFACTURING METHOD
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Application No.: US15548900Application Date: 2016-02-01
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Publication No.: US20180023166A1Publication Date: 2018-01-25
- Inventor: Hidekazu Fujimoto , Takashi Anyashiki , Toru Shiozawa
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE STEEL CORPORATION
- Current Assignee: JFE STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Priority: JP2015-021695 20150206
- International Application: PCT/JP2016/052875 WO 20160201
- Main IPC: C22B1/242
- IPC: C22B1/242 ; C10B53/08 ; C10L5/06 ; C10B31/02 ; C10B1/04 ; C10L5/04 ; C10B57/06 ; C10B45/00

Abstract:
In a ferrocoke manufacturing method by shaping and carbonizing a mixture of coal and iron ore, a hardly softening coal having a button index (CSN) of not more than 2.0 is used as the coal. The coal can be a blend of hardly softening coal and easily softening coal, and the hardly softening coal can be a coal having a button index (CSN) of 1.0 and a volatile matter of not less than 17%, and the easily softening coal can be a coal satisfying that a value obtained by multiplying CSN of easily softening coal by a blending ratio of easily softening coal in all coals is a range of 0.3-5.2. The coal can also be a blend of hardly softening coal and easily softening coal, and the hardly softening coal can be a coal having a button index (CSN) of 1.5-2.0, and the easily softening coal can be a coal satisfying that a value obtained by multiplying CSN of easily softening coal by a blending ratio of easily softening coal in all coals is nit more than 5.0.
Public/Granted literature
- US11486022B2 Ferrocoke manufacturing method Public/Granted day:2022-11-01
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