Journal
JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY
Volume 51, Issue 2, Pages 113-116Publisher
TECHNICAL FACULTY, BOR-SERBIA
DOI: 10.2298/JMMB140905016W
Keywords
Molten slag; Density; Molar volume; Improved Archimedean method
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In order to optimize the removal of boron during the refining of slag to obtain solar grade silicon, the density of molten slag was measured by an improved Archimedean method within a temperature range from 1073 to 1373 K. It was found that the density of molten slag at 1723 K can be deduced by linear fitting, and that the slag density decreases with increasing temperature. However, a reduction in slag density occurs with decreasing CaO concentration. An increase in the molar volume of slag was also observed with increasing temperature.
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