Dissolution of North Korean Magnesite by using Hydrochloric Acid

Ui-Hyun Baek; Hyungkyu Park; Jin-Young Lee; Jungshin Kang

Korean Chemical Engineering Research, Vol.55, No.5, 711-717, October, 2017

DOI10.9713/kcer.2017.55.5.711 Export Citation

Dissolution of North Korean Magnesite by using Hydrochloric Acid

Ui-Hyun Baek¹, Hyungkyu Park¹, Jin-Young Lee^{1, 2}, and Jungshin Kang^{1, 2, †}

¹Strategic Minerals Utilization Research Department, Korea Institute of Geoscience and Mineral Resources, 124, Gwahak-ro, Yuseong-gu, Daejeon, 34132, Korea
²Department of Resources Recycling, University of Science and Technology, 217, Gajeong-ro, Yuseong-gu, Daejeon, 34113, Korea

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A fundamental study was conducted on the dissolution of North Korean magnesite using hydrochloric acid to understand the dissolution behavior of the magnesium and impurities. The influence of the acid concentration, particle size of the magnesite, reaction temperature, and pulp density on the dissolution of magnesium, iron, calcium, aluminum, and silicon dioxide was studied. The experimental results showed that 98.5% of magnesium, 86.9% of iron, 87.3% of calcium, 23.6% of aluminum, and 20.4% of silicon dioxide were dissolved when magnesite particle sizes within the range of 75~105 μm were reacted using 3 M HCl solution under 6% pulp density at 363 K for 3 h. The residues that remained after the dissolution were silicon dioxide, talc, and clinochlore.

Keywords:North Korean magnesite;Dissolution of magnesite using HCl;Dissolution of magnesium;Dissolution of impurities

[References]

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[2] Friedrich HE, Mordike BL, Magnesium Technology, Springer-Verlag, Berlin Heidelberg, Germany (2016).

[3] Kipouros GJ, Sadoway DR, Advances in Molten Salt Chemistry 6, Elsevier Science Publishers B.V., Netherlands (1987).

[4] Eom HC, Park H, Kim C, Kim S, Yoon H, J, Korean Inst. Resources Recycling, 18, 38 (2009)

[5] Tveten KW, Mejdell GT, Marcussen JB, United States Patent, 5120514 (1992).

[6] Mejdell GT, Baumann HM, Tveten KW, United States Patent, 5112584 (1992).

[7] White C, Berube M, United States Patent, 5980854 (1999).

[8] Harris GB, Peacey JG, Monette S, United States Patent, 4743347 (1988).

[9] Jenkins DH, Sheehan GJ, Frost MT, Trans. Inst. Min Metall. C, 118, 205 (2009)

[10] Hosgun HL, Kurama H, Ind. Eng. Chem. Res., 51(3), 1087 (2012)

[11] Lacin O, Donmez B, Demir F, Int. J. Miner. Process., 75(1-2), 91 (2005)

[12] Bakan F, Lacin O, Bayrak B, Sarac H, Int. J. Miner. Process., 80(1), 27 (2006)

[13] Hanawalt JD, Nelson CE, Peloubet JA, Trans. AIME, 147, 273 (1942)

[14] Wagman DD, Evans WH, Parker VB, Schumm RH, Halow I, Bailey SM, Churney KL, Nuttall RL, J. Phys. Chem. Ref Data, 11, 2 (1982)

[15] Ranjitham AM, Khangaonkar PR, Hydrometallurgy, 23, 177 (1990)

[16] Ross GJ, Can. J. Chem., 45, 3031 (1967)

[17] Mase H, Bull. Chem. Soc. Jpn., 34, 214 (1961)

[18] Park KH, Nam CW, Kim HH, J. Korean Inst. Resources Recycling, 24, 3 (2015)

[19] Fournier RO, Rowe JJ, Am. Mineral., 62, 1052 (1977)

[20] Kim CW, et al., Deposits in North Korea (3), Science Encyclopedia Publishers, Pyongyang, North Korea (1991).

[21] Song GL, Atrens A, Adv. Eng. Mater., 1, 11 (1999)