A Critical Review on the Mineralogy and Processing for HighGrade Quartz
· Highpurity quartz (HPQ, SiO 2) is an important material widely used in semiconductor technologies, high temperature lamp tubing, thinfilm transistorliquid crystal display (TFTLCD), telecommuniions, and optics [].Common quartz ores (vein quartz, quartz sandstone, etc.) inferior to crystalgrade quartz have been used to prepare HPQ owing to the .
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