pH Control of Flue Gas Desulfurization in Sintering Process with Pyrolusite

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Abstract:

The effect of rhodochrosite as the annexing agent of pH of pyrolusite slurry on desulfurization and manganese leaching was studied. The influence of the byproduct of sulfuric acid in the sintering flue gas desulfurization process on desulfurization and resource utilization of absorbent was also investigated. The results show that rhodochrosite produced the same effect as a pH buffering agent. High desulfurization and manganese leaching rates were maintained for a long period. This study showed the possibility of resource utilization of low-grade rhodochrosite.

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Advanced Materials Research (Volumes 864-867)

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1592-1597

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December 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] LIU Li-quan. Study of Leaching Pyrolusite ore by Sulfur Dioxide[M]. chengdu, Sichuan university, Master's degree paper, (1999).

Google Scholar

[2] ZHU Xiao-fan, XU Hai-yan. Effect of Agitation Rate on the Reaction of Removal SO2 with Pyrolusite Pulp[J]. Journal of Sichuan university, 2002, 34(1): p.121.

Google Scholar

[3] ZHU Xiao-fan, LIU Ruo-bing, JIANG Wen-ju. Application of Jet Bubbling Reaction to Flue Gas Desulfuration by Pyrolusite Pulp[J]. Environmental Engineering: 2003, 21(1): p.47.

Google Scholar

[4] F. Veglio, L. Toro. Fractional factorial experiments in the development of manganese dioxide leaching by sucrose in sulfuric acid solutions[J]. Hydrometallurgy, 1994, 36: p.215.

DOI: 10.1016/0304-386x(94)90007-8

Google Scholar

[5] H.A. Hancock, D.I. Fray. Use of coal and lignite to dissolve manganese dioxide in acidic solutions[C]. Trans. Inst. Min. Metall., 1986, Sec. C 95. C: p.27.

Google Scholar

[6] S.C. Das, P.K. Sahoo, P.K. Rao. Extraction of manganese from low-grade manganese ores by FeSO4 leaching[J]. Hydrometallurgy, 1982, 8: p.35.

DOI: 10.1016/0304-386x(82)90029-9

Google Scholar

[7] K.M. Parida, B.B. Nayak, K.K. Rao, S.B. Rao. Kinetics and mechanism of the reductive leaching of manganese ores by iron pyrites in mild acidic solutions[C]. EPD Congress, 90, in: D.R. Gaskell(Ed. ), The Minerals Metals and Materials Society, 1990: p.217.

Google Scholar

[8] S.B. Kanungo B.R. Sant. Beneficiation of low-grade manganese ores by hydrometallurgical methods[J]. Mines, Met. Fuels. 1974, 2(6): p.173.

Google Scholar

[9] P.G. Chamberlain, J.E. Pahlman, C.A. Rhoades. Recent research in leaching manganese [C]. Paper presented at the Society of Mining Engineers, AIME Fall Meeting, Salt Lake City, UT, 1982, 10: p.89.

Google Scholar

[10] J. E. Pahlman, S. E. Khalafalla. Leaching of domestic manganese with dissolved SO2 [C], paper presented at the Society of Mining Engineers, AIME Annual Meeting, Los Angeles, CA, February 26 to March 1.

Google Scholar

[11] WU Fu-zhong, Study on Sulphur Flows Analysis for Iorn & Steel Process and Technology of Flue Gas Desulfurization With Pyrolusite and Rhodochrosite[D]. China, Shenyang, Northeastern university doctoral dissertation, (2008).

Google Scholar