Title:
METHOD FOR RESTRAINING SWELLING OF DEPHOSPHORIZING-TREATED SLAG IN MOLTEN IRON
Document Type and Number:
Japanese Patent JP3541666
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method with which the swelling of dephosphorizing- treated slag in molten iron can be restrained without executing aging treatment.
SOLUTION: This restraining method for swelling of dephosphorizing-treated slag in the molten iron is executed by mixing a silica-containing material having latent hydraulic property or pozzolanic reactivity to the dephosphorizing-treated slag in the molten iron. Then, this method is executed in the condition that the mixing ratio of the silica-containing material having the latent hydraulic property or the pozzolanic reactivity is made to ≥1% of the dephosphorizing- treated slag.
Inventors:
Yasuto Miyata
Satoshi Numata
Satoshi Numata
Application Number:
JP5980998A
Publication Date:
July 14, 2004
Filing Date:
March 11, 1998
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
C21C7/00; C21C1/02; C21C5/36; C21C5/52; F27D15/00; (IPC1-7): C21C1/02; C21C5/36; C21C5/52; C21C7/00; F27D15/00
Domestic Patent References:
| JP8048549A | ||||
| JP7223857A | ||||
| JP4016534A | ||||
| JP54043236A | ||||
| JP50000011A | ||||
| JP62288143A |
Attorney, Agent or Firm:
Yasumitsu Nakahama
Previous Patent: INTERNAL COMBUSTION ENGINE
Next Patent: METHOD FOR RESTRAINING SWELLING OF STEELMAKING SLAG
Next Patent: METHOD FOR RESTRAINING SWELLING OF STEELMAKING SLAG