Special product from SHC Vietnam:
LIMESTONE / CALCIUM CARBONATE / CALCITE IN COARSE SIZE
- Purity: 98% CaCO3
- Whiteness: 90%, 95%, 96%, 98%
- Size: 0.0-1.0mm, 0.1-0.7mm, 0.8-1.5mm, 1.0-2.0mm, 1.0-3.0mm
- Mesh size: 20 mesh, 30 mesh, 40 mesh
Limestone and calcium carbonate in coarse sizes (0-3mm) have various industrial applications based on their physical and chemical properties. Here are some of their key usages:
1. Construction & Building Materials
- Road Base & Asphalt: Used as an aggregate in road construction for stability and durability.
- Concrete & Cement Production: Acts as a filler material to enhance strength and reduce shrinkage.
- Brick & Block Manufacturing: Mixed into concrete blocks, paving stones, and other construction materials.
2. Steel & Metallurgical Industry
- Flux in Steelmaking: Helps remove impurities in blast furnaces during iron and steel production.
- Desulfurization: Used to reduce sulfur content in molten metal.
3. Agriculture & Soil Conditioning
- Soil pH Adjustment: Helps neutralize acidic soils, improving fertility for crops.
- Animal Feed: A source of calcium for poultry, cattle, and other livestock to improve bone health.
4. Glass & Ceramics Industry
- Glass Manufacturing: Acts as a stabilizer and improves transparency and strength.
- Ceramics & Tiles: Used as a flux to lower the melting point and enhance durability.
5. Water Treatment & Environmental Uses
- Wastewater Treatment: Helps remove heavy metals and neutralize acidic water.
- Flue Gas Desulfurization (FGD): Used in power plants to reduce sulfur dioxide emissions.
6. Paper & Pulp Industry
- Used in some processes to improve paper brightness, printability, and opacity.
7. Chemical Industry
- Production of Quicklime & Slaked Lime: Heating limestone produces calcium oxide (quicklime), which is further processed into calcium hydroxide (slaked lime).
- Manufacturing of Calcium-based Chemicals: Used in producing calcium chloride, calcium nitrate, etc.
| CHEMICAL INDEX | TEST METHODS | RESULT |
|
CaCO3 |
TCVN9191:2012 |
98.28% |
|
Ca |
TCVN9191:2012 |
39.31% |
|
MgO |
TCVN9191:2012 |
1.32% |
|
HEAVY METAL INDEX |
UNIT |
RESULTS |
TEST METHODS |
NOTE |
|
Arsenic (As) |
Mg/kg |
Non-Exist |
V31-29-ICP-MS |
LOD = 1.50 |
|
Lead (Pb) |
Mg/kg |
Non-Exist |
V31-29-ICP-MS |
LOD = 0.50 |
|
Mercury (Hg) |
Mg/kg |
Non-Exist |
V31-28-ICP-MS |
LOD = 0.05 |
|
Cadmium (Cd) |
Mg/kg |
Non-Exist |
V31-29-ICP-MS |
LOD = 0.50 |
|
Flo (F) |
Mg/kg |
Non-Exist |
V31-86 (AOAC 975.08) |
LOD = 2.00 |
|
PHYSICAL INDEX |
TEST METHODS |
RESULT |
|
Whiteness |
TCVN 2231:2016 |
97.25% |
|
Bulk Density |
|
90 lbs./cu. ft |
|
Mesh Size |
|
16 x 40 |
|
Hardness |
Mohs scale |
3.0 |
|
Effective Size |
|
0.4 mm |
|
Moisture |
V11-36 (TCVN 4326:2001) |
0.20% |
CONDITION FOR OPERATION
|
A gravel support bed is recommended |
Backwash rate: 8-12 gpm/sq. ft. |
|
Water pH range: 5.0-7.0 |
Backwash Bed Expansion: 12% minimum |
|
Bed depth: 24-30 in |
Service flow rate: 3-6 gpm/sq. ft. but may be modified to adapt to local conditions |
|
Freeboard: 50% of bed depth (min.) |
|
CONTACT US TO IMPORT LIMESTONE FROM VIETNAM:
Mr. Steve (International Sales Manager)
Phone: +84 936 181 398
Email: export4@shcgroup.vn
Skype: export4@shcgroup.vn
