|
CHEMICAL COMPOSITION, % |
||
|
Component |
Color |
|
|
Grey |
White |
|
|
Al2O3 |
25-28.5 |
34-36 |
|
SiO2 |
54-58 |
53-59 |
|
Fe2O3 |
2-5 |
1-2 |
|
K2O+Na2O |
3-6 |
1.3-1.7 |
|
CaO |
0.5-3.5 |
1-1.9 |
|
MgO |
1-2 |
0.3-0.6 |
|
PHYSICAL
PROPERTIES |
||
|
|
|
|
|
|
Grey |
White |
|
Specific
gravity, g/cm3 |
0.6-0.8 |
0.65-0.75 |
|
Melting
point, C |
1300 |
1600 |
|
Bulk
density, g/cm3 |
0.34-0.44 |
0.38-0.42 |
|
L.O.I.,
% |
0.5-2 |
>1 |
|
pH |
6-8 |
|
|
Floatability,
% |
>95% |
|
|
Moisture,
% |
<0.5% |
|
|
PARTICLES
DISTRIBUTION, % |
||||||
|
|
Grade |
|||||
|
STANDART |
COARSE |
FINE |
||||
|
Passing,
% |
Grey |
White |
Grey |
White |
Grey |
White |
|
500
Micron |
100 |
100 |
100 |
100 |
100 |
100 |
|
300
Micron |
85-99 |
97-99 |
93-99 |
95-99 |
100 |
100 |
|
150
Micron |
25-50 |
30-55 |
0-20 |
10-30 |
70-100 |
70-100 |
|
100
Micron |
5-15 |
25-40 |
0 |
0-10 |
20-40 |
10-50 |
|
Av. grain size, Micron |
160-190 |
160-190 |
170-195 |
190-220 |
110-140 |
100-140 |