Mainly using potassium feldspar, divided into three types:
Material No.1 is of bulk type
Particle size: 20-140 mesh
The ingredient content is:
K20+Na20≥9.5%、
Fe203 ≤ 0.25% or ≤ 0.2% Al203≥14%、
Si02≥71%、Ca0<0.5%、Mg<0.5%
Mainly used in the float glass industry.
Material No. 2 is bagged:
Particle size: 20-120 mesh
The ingredient content is:
K20+Na20≥10.5%、
Fe203 ≤ 0.18% or ≤ 0.15% A1203≥16%、
Si02≥70%、Ca0<0.5%、Mg<0.5%
Mainly used in the glass tube and glass wool industries.
Material No. 3 is bagged or ton pack type:
Particle size: 20-120 mesh
The ingredient content is:
K20≥10-12%、Na20≤2.8%、
Fe203≤0.2%、Al203≥16%、
Si02≥68%、Ca0<0.5%、Mg<0.5%, Mainly used for glass blocks, glass wool, and glass shells