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Com Keywords: Flash Smelting Furnace, Reaction Shaft, Freeze Slag, Surface Tension Abstract. According to the reaction shaft operation characteristics during the flash smelting process, 15 groups of slag samples containing high Fe3O4 were prepared by some chemical reagents, and then the slag surface tensions were measured using a RTW-10 type synthetic test instrument for melt physical property by means of suspension link. The effects of temperature ( T ), basicity ( B ), the Fe/SiO2 ratio ( mFe / mSiO ), Fe3O4 content ( wFe O ), Cu2O content ( wCu O ), MgO content ( wMgO ) and CaO content ( wCaO ) on the slag surface tension ( σ ) were also studied.

Res. Vol. 9 (1981),P. 378-381. A. 37 (1964),P. 46~51. [6] S. Yamashita, M Okubo, S. 37-52. [7] P. G. West-sells: ‘Fundamental study of the deposition of cobalt from electrolytes containing zinc, PhD thesis, The university of British Columbia, British Columbia, Canadian(1996). [8] Y. Lu: ‘The effect of impurities on the deposition of zinc sulphate solution, master thesis, Kunming university of science and technology, Kunming, China (2004). (in Chinese) [9] G. ZENG: Mechanism of coblat removal from zinc sulphate solution, PhD thesis, Kunming university of science and technology, Kunming, China (2006).

759T J mol (3) Where, Ki, ∆Gi are the equilibrium constant and Gibbs free energy of the balance equation i respectively. From the balance equations, all of the compound molecule activities can be expressed by the activities of simple molecules, and so does other compounds by calculation. 5N33+2N49+3N50+N51+N53+N66) (7) d=∑n(1/3N4+N15+N16+N53+N54+N55+N56+N57) (8) e=∑n(N5+N17+7N18+N19+2N20+6N21+N29+N30+3N31+N32+N38+N39+N40+N41+N42+2N49 +N50+N54+N55+N56+9N58+2N59+N60+N64) (9) f=∑n(N6+N24+N25+N46+3N47+N48+N52+N61+2N62+N63+N64+2N65+2N66) (10) g=∑n(N7+N9+N10+2N11+N12+N13+N14+N15+2N16+N22+N29+2N30+2N31+N33+N35+2N36+2N37+N39 +N41+3N42+3N43+2N44+N48+5N49+3N50+N51+2N54+4N55+6N56+4N57+3N58+5N59+3N60) h=∑n(N8+N23+N26+N27+N28+N34+N43+N52) (11) (12) Making simultaneous equations between the chemical equilibrium equations (from Eq.

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Advances in Metallurgical and Mining Engineering by Edited by Hongxi Zhu Linjiang Wang

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