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| Study on the treating of nickel laterite from Indonesia using compound sodium salt |
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Received:February 14, 2017
Revised:February 22, 2017
Accepted:February 23, 2017
Published Online:October 18, 2017
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| DOI： |
| KeyWord:nickel laterite; reduction roasting;magnetic separation;ferronickel concentrate |
| Author | Institution |
| Gao Jian-yong |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology |
| Ding Yue-hua |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology |
| Hao Jian-zhang |
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Pangang Group Research Institute Co,Ltd,Panzhihua |
| Zeng Guan-wu |
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Pangang Group Research Institute Co,Ltd,Panzhihua |
| Geng Zhao-yang |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology |
| Sun Zheng-han |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology |
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| Abstract: |
| Nickel is widely used in modern society and is irreplaceable. With the depletion of nickel sulfide ore and the growing demand for nickel, the low-grade nickel laterite, which account for 72% of the world nickel resource, will be the main source for extraction of nickel. In this paper, according to the composition and structure of nickel laterite from Indonesia, magnetic separation after reduction roasting and leaching has been applied. The ration of sodium sulfate and sodium carbonate, coal dosage, roasting temperature, roasting time has been investigated. The result shows that when the ore , sodium sulfate , sodium carbonate and coal has a ratio of 100:14:8:8, and the sample is roasted under 1200℃ for 80min. a product ferronickel concentrate with 4.59% nickel can be attained and nickel recovery can reach 88.58%. The process can efficiently enrich laterite Ni, Fe, Al and other valuable metals, realizing the efficient utilization of laterite resources. |
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