发明名称 |
METHOD FOR SMELTING NICKEL OXIDE ORE |
摘要 |
Provided is a method for smelting nickel oxide ore by which the occurrence of cracking due to heat shock can be suppressed when nickel oxide ore is pelletized and charged into a smelting step (reduction step). A method for smelting nickel oxide ore according to the present invention uses pellets of nickel oxide ore, the method being characterized by comprising a pellet production step S1 for producing pellets from nickel oxide ore, and a reduction step S2 for heating the resulting pellets at a predetermined reduction temperature in a reduction furnace, the reduction step S2 comprising preheating the pellets obtained in the pellet production step S1 to a temperature of 350 to 600°C in the reduction furnace and thereafter charging the pellets into the reduction furnace and raising the temperature of the reduction furnace to the reduction temperature. |
申请公布号 |
CA2956259(A1) |
申请公布日期 |
2016.02.04 |
申请号 |
CA20152956259 |
申请日期 |
2015.06.30 |
申请人 |
SUMITOMO METAL MINING CO., LTD. |
发明人 |
TAKAHASHI, JUNICHI;INOUE, TAKU;OKADA, SHUUJI |
分类号 |
C22B23/02;C22B1/245;C22B5/10;C22C33/04 |
主分类号 |
C22B23/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|