Real thing!Quality requirements for quartz sand for ultra-white glass
Ultra-clear glass can achieve a transmittance of more than 91.5%, and its optical properties are widely used in solar power generation, solar thermal power generation, information display, architectural decoration, and smart agriculture. The iron content in the ultra-clear glass is 0.015% or less, and the high-quality ultra-clear glass for the photothermal glass for clean energy, the electronic glass for information display, and the like requires higher transmittance, and therefore requires silica sand has a lower iron content, which puts higher demands on the raw materials of glass. Among the ultra-white glass batch materials, quartz sand generally accounts for more than 60% of the weight ratio, which is the main factor affecting the iron content in the glass, and the melting temperature of the quartz sand is high, which determines the melting speed of the glass, so quartz sand in glass batch materials is the main research object. What are the requirements for the chemical co