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| Treatment for Myanmar Nickel Laterite with RKEF Process |
| Received:July 18, 2012 Revised:July 25, 2012 |
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| DOI：doi：10.3969/j.issn.1007-7545.2013.01.003 |
| KeyWord:nickel laterite; drying; reduction roasting; ferronickel alloy; pelletizing; rotary kiln; electric furnace |
| Author | Institution |
| ZHAO Jing-fu |
沈阳有色金属研究院 |
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| Abstract: |
| The pilot plant test on ferronickel alloy production from Myanmar Dagon Hill nickel laterite by rotary kiln-electric furnace smelting process (RKEF) was introduced. The optimum process parameters include moisture of 20%~22% in dried ore, pre-reduction temperature of 900 ℃, reductant dosage of 7%, nickel grade in ferronickel alloy of 19%; 25% of dust as dosage of wet laterite, the moisture of dustball of 30% in palletizing process, slag and ferronickel alloy discharging temperature in electric furnace smelting process of 1 550~1 600 ℃ and 1 450~1500 ℃, respectively. |
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