Rapid Determination of SiO2 in Iron Ore

Abstract

Abstract: The iron ore sample is decomposed with NaOH+Na₂O₂ flux and the melt is digested with dilute hydrochloric acid to convert the SiO₂ into soluble silicic acid.Then the silicon dioxide content in the sample is determined by molybdenum-blue spectrophotometry.The method that is simple, accurate and reliable enables a rapid macroanalysis of silicon dioxide, well meeting the control requirement of iron ore beneficiation.

Key words: Iron ore, Silicon dioxide content, Silicon molybdenum-blue spectrophotometry

CHEN Ping, 吕Xian-Jun , SUN Li-Jun. Rapid Determination of SiO₂ in Iron Ore[J]. Metal Mine, 2009, 39(02): 102-104.

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Rapid Determination of SiO₂ in Iron Ore

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