High purity quartz sand

It is made from natural crystal rock of one to four grade or perfect natural quartz after procedure of election, calcination, breaking up, acid-dealing, high purity water washing, drying, classification and magnetism filtration. The annual output is 6,000 ton. Granularity range:1-0.5mm,0.5-0.2mm,0.2-0.01mm,0.01-0.075mm, 45um. Main compositions: SiO2≥99.9-99.99%, Fe2O3≤5-100ppm. Main use:It is used in the industries such as refractory quartz glass tube, high-grade glass products, electrical equipments and optic-fibre products.