Open AccessMeasurement of CaO-SiO2-SaCl2 slag density by an improved Archimedean method
Author(s) -
Y. Wang,
Kazuki Morita
Publication year - 2015
Publication title -
journal of mining and metallurgy. section b, metallurgy/journal of mining and metallurgy. section b, metallurgy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 20
eISSN - 2217-7175
pISSN - 1450-5339
DOI - 10.2298/jmmb140905016w
Subject(s) - slag (welding) , refining (metallurgy) , materials science , boron , silicon , atmospheric temperature range , metallurgy , range (aeronautics) , mineralogy , thermodynamics , chemistry , composite material , physics , organic chemistry
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