The Formation of Manganous Dithionate in the Manganese Oxide Flue Gas Desulfurization

Author(s): Pengyan Pu, Lin Yang, Lu Yao, Xia Jiang, Wenju Jiang*.

Journal Name: Recent Innovations in Chemical Engineering
Formerly: Recent Patents on Chemical Engineering

Volume 12 , Issue 4 , 2019

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Abstract:

Background & Objective: The Manganous Dithionate (MnS2O6, MD) was formed during the flue gas desulfurization process over manganese ore slurry, which impeded the following valuable using of the desulfurized lixivium. In this study, the MD formation and restraint in the desulfurization process using manganese was carefully investigated.

Methods & Results: Different type of manganese oxides/carbonate was used for the flue gas desulfurization, and the MD formation with the process was detected to obtain the basic information of the MD formation and restraint. The MD was directly formed by the uncompleted oxidation of SO2 with MnO2. The increased MD formation by Mn2O3, Mn3O4 and MnCO3 was due to their influence on the pH of slurry. Processability study showed that an increase in the acidity of slurry, the gaseous oxygen content and reaction temperature could inhibit the MD formation effectively. The optimum operating conditions to restrain the MD formation were temperature higher than 60°C, 10% or more oxygen and slurry pH lower than 3. The formed MD content was different with the different manganese compounds, which cloud be controlled by the ore-proportioning in industrial application.

Conclusion: Using anolyte to prepare the manganese slurry for desulfurization could perform a good MD formation restraint, which provided valuable technical support for the cleaner production of electrolytic manganese industry.

Keywords: Manganese oxides, flue gas desulfurization, manganese dithionate, formation and restraint, anolyte, electrolytic, manganese industry.

[1]
Zhu X, Jiang W, Su S, Jin Y, Liu X. The study of reaction mechanism of desulfurization in flue gas with pyrolusite pulp. Tech Equip Enviropollcont 2002; 3(3): 44-6.
[2]
Kanungo SB, Das RP. Extraction of metals from manganese nodules of the Indian Ocean by leaching in aqueous solution of sulphur dioxide. Hydrometallurgy 1988; 20(2): 135-46.
[http://dx.doi.org/10.1016/0304-386X(88)90047-3]
[3]
Senanayake G. A mixed surface reaction kinetic model for the reductive leaching of manganese dioxide with acidic sulfur dioxide. Hydrometallurgy 2004; 73(3-4): 215-24.
[http://dx.doi.org/10.1016/j.hydromet.2003.10.010]
[4]
Naik PK, Sukla LB, Das SC. Aqueous SO2 leaching studies on Nishikhal manganese ore through factorial experiment. Hydrometallurgy 2000; 54(2): 217-28.
[http://dx.doi.org/10.1016/S0304-386X(99)00075-4]
[5]
Mathieu Y, Tzanis L, Soulard M, Patarin J, Vierling M, Molière M. Adsorption of SO by oxide materials: A review. Fuel Process Technol 2013; 114(1): 81-100.
[http://dx.doi.org/10.1016/j.fuproc.2013.03.019]
[6]
Miller JD, Wan R-Y. Reaction kinetics for the leaching of MnO2 by sulfur dioxide. Hydrometallurgy 1983; 10(2): 219-42.
[http://dx.doi.org/10.1016/0304-386X(83)90007-5]
[7]
Senanayake G, Das GK. A comparative study of leaching kinetics of limonitic laterite and synthetic iron oxides in sulfuric acid containing sulfur dioxide. Hydrometallurgy 2004; 72(1-2): 59-72.
[http://dx.doi.org/10.1016/S0304-386X(03)00132-4]
[8]
Pagnanelli F, Furlani G, Valentini P, Vegliò F, Toro L. Leaching of low-grade manganese ores by using nitric acid and glucose: Optimization of the operating conditions. Hydrometallurgy 2004; 75(1): 157-67.
[http://dx.doi.org/10.1016/j.hydromet.2004.07.007]
[9]
Pahlman JE, Khalafalla SEJUBMRI. Leaching of domestic manganese ores with dissolved SO2. US Bur Mines Rep Invest 1988; 15(1): 15.
[10]
Qu B, Hu W, Deng L, et al. Fuels, simultaneous determination of dithionate and sulfate in leaching solution from SO2-leaching pyrolusite by ion chromatography. Energy Fuels 2016; 30(10): 8561-6.
[http://dx.doi.org/10.1021/acs.energyfuels.6b01333]
[11]
Chow N, Nacu A-M, Warkentin D, Fisher JW. Processing of manganous sulphate/dithionate liquors derived from manganese resource material. U.S. Patent 8460631B2, 2013.
[12]
Gernon MD, Bodar SL. Aqueous solutions containing dithionic acid and/or metal dithionate. U.S. Patent 7163915B2 2007.
[13]
McKee ML. Computational study of the mono- and dianions of SO2, SO3, SO4, S2O3, S2O4, S2O6, and S2O8. J Phys Chem 1996; 100(9): 3473-81.
[http://dx.doi.org/10.1021/jp952361k]
[14]
Lente G, Fábián I. Effect of dissolved oxygen on the oxidation of dithionate ion. Extremely unusual kinetic traces. Inorg Chem 2004; 43(13): 4019-25.
[http://dx.doi.org/10.1021/ic0499087] [PMID: 15206884]
[15]
He K, Su S, Ding S, Sun W. Formation characteristics of dithionate and sulfate ions in the pyrolusite leaching process with SO2. React Kinet Mech Catal 2018; 123(2): 757-70.
[http://dx.doi.org/10.1007/s11144-018-1365-5]
[16]
Qu B, Deng L, Deng B, He K, Liao B, Su S. Oxidation kinetics of dithionate compound in the leaching process of manganese dioxide with manganese dithionate. React Kinet Mech Catal 2018; 123(2): 743-55.
[http://dx.doi.org/10.1007/s11144-017-1284-x]
[17]
Wang S, Lu GQ. Effects of acidic treatments on the pore and surface properties of Ni catalyst supported on activated carbon. Carbon 1998; 36(3): 283-92.
[http://dx.doi.org/10.1016/S0008-6223(97)00187-5]
[18]
Soffer N. The determination of dithionate, sulphite and sulphate in manganese leach liquors. Analyst (Lond) 1961; 86(1029): 843-9.
[http://dx.doi.org/10.1039/an9618600843]
[19]
Lente G, Fábián I. Effect of dissolved oxygen on the oxidation of dithionate ion. Extremely unusual kinetic traces. Inorg Chem 2004; 43(13): 4019-25.
[http://dx.doi.org/10.1021/ic0499087] [PMID: 15206884]
[20]
Lee JH, Gilje J, Zeitlin H, Fernando Q. Low-temperature interaction of sulfur dioxide with Pacific ferromanganese nodules. Environ Sci Technol 2002; 12(13): 1428-31.
[http://dx.doi.org/10.1021/es60148a001]
[21]
Back AE, Ravitz SF, Tame KE. Formation of dithionate and sulphate in the oxidation of sulphur dioxide by manganese dioxide and air Bureau of Mines, United States Department of the Interior: Washington, D.C, Report of Investigations 4931 . 1952.


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Article Details

VOLUME: 12
ISSUE: 4
Year: 2019
Page: [287 - 295]
Pages: 9
DOI: 10.2174/2405520412666190821102847
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