| 水泥灰岩 |
CaO ≥55% (CaCO 3 ≥98.14%) |
|
|
MgO ≤0.5% |
| 电石灰岩 |
CaO ≥53-54% (CaCO 3 ≥95%) |
R 2 O 3 ≤1.0% |
|
MgO ≤1.0% |
| 制造氮肥 |
CaO ＞54% (CaCO 3 ＞96.36%) |
R 2 O 3 ＜1.0% |
|
|
| 制造磷肥 |
CaO ＞53% (CaCO 3 ＞94.57%) |
R 2 O 3 ＜3.0% |
|
|
| 制糖灰岩 |
CaCO 3 ＞95% (CaO ＞53.24%) |
R 2 O 3 ＜1.5% |
MgCO 3 ＜1.5% |
R 2 O＜0.25% |
| 陶瓷灰岩 |
CaCO 3 ＞96% (CaO ＞53.80%) |
|
MgCO 3 ＜1.0% |
SiO 2 ＜2% |
| 添料灰岩 |
CaO ≥54% (CaCO 3 ≥96.36%) |
|
|
Fe 2 O 3 ≤1% |
| 玻璃灰岩 |
CaO ≥54% (CaCO 3 ≥96.36%) |
|
|
Fe 2 O 3 ≤0.15% |
| 饲料灰岩 |
CaO ≥54.92% (CaCO 3 ≥98%) |
Hg≤0.1ppm pb≤30ppm As≤10ppm F≤2000ppm |