Patent ID: 11932569
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A low iron silica sand product suitable for all grades of glass production, the sand product derived from crude ore having a sand content of about 75% to 80% by weight, a kaolin/mica content of about 15% to 25% by weight, a dark, heavy mineral content of about 1% to 2% by weight, and an Fe2O3 content of about 0.5% to 1.0% by weight, the low iron silica sand product comprising an SiO2 content of at least 99.8% by weight, an Fe2O3 content of less than about 0.008% by weight, an Al2O3 content of less than about 0.1% by weight, and a CaO content of less than about 0.05% by weight.