发明名称 |
FREMGANGSMAATE VED FREMSTILLING AV JERNOXYDPELLETS |
摘要 |
Iron ore or concentrates containing about 0.5 to about 3.0% silica, 0.5 to 1.0% bentonite and 96.5 to 99.0% iron oxide together with 7.0 to 12.0% moisture is pelletized, the pellets are surface-coated with about 1 to about 4.5% limestone and fired at a temperature of about 2100 DEG to about 2400 DEG F., the formed pellets being suitable for direct reduction temperatures above 1400 DEG F in a shaft furnace with a minimum of clustering. |
申请公布号 |
NO140601(C) |
申请公布日期 |
1980.07.10 |
申请号 |
NO19740002851 |
申请日期 |
1974.08.08 |
申请人 |
USS ENGINEERS AND CONSULTANTS, INC., |
发明人 |
GOETZMAN, HAROLD EDWARD, |
分类号 |
C22B1/14;C21B13/02;C22B1/24;(IPC1-7):22B1/14;21B13/00 |
主分类号 |
C22B1/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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