Study on Mass Loss of Ludwigite in the Process of Carbothermal Reduction

Ran Liu; Xing Juan Wang; Yong Liang Gao; Qing Lu; Xiang Xin Xue

doi:10.4028/www.scientific.net/AMR.487.15

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 487Study on Mass Loss of Ludwigite in the Process of...

Study on Mass Loss of Ludwigite in the Process of Carbothermal Reduction

Abstract:

Using ludwigite as raw material, mass loss of ludwigite on the procedure of carbothermal reduction was studied. The effects of reduction temperature, carbon content, holding time were investigated by orthogonal experiment. Reduction temperature was the most influential factor for affecting the mass loss of ludwigite. The experimental results showed that the mass loss rate of samples increases with rising temperature, of which the maximum is 52.6wt% in the range from 1410°C to 1470°C. Mass loss rate of magnesia in ludwigite went up to 98.0% because it was reduced as gaseous magnesium vapor in the process of carbothermal reduction. The main phase of the reduction product was Fe2B, FeB and SiC. The paper can provide significant references for selective separation of valuable elements form ludwigite.

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Periodical:

Advanced Materials Research (Volume 487)

Pages:

15-19

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.487.15

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Online since:

March 2012

Authors:

Ran Liu, Xing Juan Wang, Yong Liang Gao, Qing Lu, Xiang Xin Xue

Keywords:

Carbothermal Reduction, Ludwigite, Mass Loss

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References

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