Patent ID: 11944957
Assignee: CHONGQING INSTITUTE OF EAST CHINA NORMAL UNIVERSITY
Field: Chemical engineering (Chemistry)
Classification: CPC B  A  C | IPC A  B  C

Claim 1:
2. The glass fiber filter element according to claim 1, wherein the glass fiber mat comprises: 2.5 to 7.5 wt % of Al2O3, 4.5 to 8.5 wt % of MgO, 1.5 to 4.5 wt % of CaO, 3 to 6.5 wt % of B2O3, 4.5 to 7.5 wt % of a mixture of Fe2O, ZnO and BaO, 8 to 10.5 wt % of an alkali metal oxide R2O where R2O is selected from Na2O, K2O and a combination thereof, 56.5 to 66.5 wt % of SiO2, based on the total weight of the glass fiber mat.