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The formation of sulfate sulfur during roasting of Chinese molybdenite concentrate

J. Beňa, M. Gregor, and J. Bizmár

Slovak Technical University, Bratislava

 

Abstract: During production of ferromolybdenum, MoO3 is formed by oxidizing roasting of MoS2, but some residual S remains in the sulfate form which is not desirable. During roasting of Chinese molybdenite concentrate, all of the S is bound as Fe2(SO4)3 and Al2(SO4)3. In view of this fact and by applying thermodynamic equations, Kp = (27/4)̅P2SO3(̅PT̅ P2SO3)-3, a table was made showing at given SO3 content in the smelter gas, the temp. (600-50°) at which the sulfates are not formed.

Full paper in Portable Document Format: 1710-11a765.pdf (in Slovak)

 

Chemical Papers 17 (10-11) 765–775 (1963)

Friday, March 29, 2024

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