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2016 Vol.26, Issue 6 Preview Page
Mineralogical Analysis and Mechano-Chemical Purification of Natural Silica Ore for High Purity Silica Powder
Jesik Park
,
Churl Kyoung Lee
,
Hyun-Kwon Lee†
School of Materials Science and Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi-si, Gyeongsangbuk-do 39177, Republic of Korea
†Corresponding author hklee@kumoh.ac.kr (H.-K. Lee, Kumoh Nat’l Inst. of Tech.)
June 2016. pp. 306-310
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Abstract

To produce 4N grade high-purity silica powder from natural ore, the mineralogical characteristics of natural silica ore were investigated and their effects on the purification process were revealed. The Chinese silica mineral ore used was composed of iron and aluminum as main impurities and calcium, magnesium, potassium, sodium, and titanium as trace impurities; these trace impurities generally exist as either single oxides or complex oxides. It was confirmed that liberation and acidic washing of the impurities were highly dependent on the particle size of the ground silica ore and on its mineralogical characteristics such as the distribution and phases of existing impurities. It is suggested that appropriate size reduction of silica ore should be realized for optimized purification according to the origin of the natural silica ore. A single step purification process, the mechano-chemical washing (MCW) process, was proposed and verified in comparison with the conventional multi step washing process.

Keywords
silica
purification
mineralogical analysis
impurity distribution
References
1
L Yong, W Yu-lian, Q Yan-fu, L Qian, G Bang-gui and LV Yue-feng, Journal of Anhui Science and Technology University, 2 (2008)
2
N Manfred and G Rehfeld, U.S Patent No. 4177235 (1979)
3
S Akira, N Yuki, A Yoshio and N Shunro, U.S. Patent No. 4676964 (1987)
4
T Makoto, T Kenji and K Masao, U.S. Patent No. 5458864 (1995)
5
F Veglio, B Passariello and C Abbruzzese, Ind. Eng. Chem. Res, 38(11); 4443 (1999)
10.1021/ie990156b
6
M Taxiarchou, D Panias, I Douni, I Paspaliaris and A Kontopoulos, Hydrometallurgy, 46(1); 215 (1997)
10.1016/S0304-386X(97)00015-7
7
A D Farmer, AF Collings and GJ Jameson, Ultrason. Sonochem, 7; 243-247,-0 (2000)
8
J Y Hyun, S B Jeong and Y B Chae, J. Miner. Soc. Korea, 19; 1 (2006)
9
Jr Robert and W Mcallister, U.S. Patent No. 2537904 (1951)
10
M Taxiarchou, D Panias, I Douni, I Paspaliaris and A Kontopoulous, Hydrometallurgy, 44; 287 (1997)
10.1016/S0304-386X(96)00075-8
11
A Kheloufi, M Fathi, H Rahab, A Kefaifi, A Keffous and S A Medjahed, Chem. Engineering Transactions, 32; 889 (2013)
12
I C Santos, A P Goncalves, C Silvasantos, M Almeida, M H Afonso and Cruz M Joaquina, Hydrometallurgy, 23; 237 (1990)
10.1016/0304-386X(90)90007-O
13
A Kheloufi, Y Berbar, A Kefaifi, A M Sid and F Kerkar, Proceedings of the 10th Int. Conf. on Chemical & Process Engr (2011)
14
G Liu, W Zhang, Z Ma and Y Lu, Non-Ferrous Mining and Metallurgy, 6; 26 (2007)
Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 26
  • No :6
  • Pages :306-310
  • Received Date : 2016-04-06
  • Revised Date : 2016-04-14
  • Accepted Date : 2016-04-20
  • DOI :https://doi.org/10.3740/MRSK.2016.26.6.306
Journal Informaiton Korean Journal of Materials Research Korean Journal of Materials Research
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