Calcium carbonate is a chemical compound with the formula CaCO3.It is estimated that about 4 percent of the earth\'s crust is made up of calcium carbonate. It is found naturally in the form of minerals and rocks, some of which include calcite, limestone, chalk, marble, and aragonite. Calcium carbonate is one of the most useful and versatile material. Wet and dry grinding methods are used in processing it for industrial applications. It is widely used in varied industries for environmental protection and use in industrial processes and applications, in the non-ferrous metals and minerals, iron and steel, chemicals, portable water, pulp and paper, oil & gas, cement and construction, agriculture, animal husbandry and aquaculture. Other applications are in waste water and sludge treatment, sugar refining, flue gas treatment, glass and ceramics, roads and soil stabilization, food preparation, supplements and many more.
The limestone is fed into the bucket elevator and subsequently transported to the raw material warehouse for grinding.
After grinding, the finished products are gathered by powder concentrator, and then conveyed to a screw conveyor.
The finished products are transported to the storage warehouse, while the excess gas is filtered by the dust collector.
The whole system is equipped with three pulse dust collectors to guarantee that the whole system is free of dust leakage.
The system is outfitted with an intelligent PLC control cabinet and an upper computer.
The system is equipped with an intelligent PLC control cabinet and an upper computer.
Ground Calcium Carbonate is one of the largest usage amount fillers in the rubber industry. Calcium carbonate can increase the volume of the rubber products, and save the consumption of the expensive natural rubber. Then it will save the cost. Calcium carbonate as the filer can increase the tensile strength, tear strength and abrasive resistance of the rubber products
Ground Calcium Carbonate Powder for Rubber Industry Standard(HG/T3249.4-2013)
| Item | GradeⅠ | GradeⅡ | Grade Ⅲ | Grade Ⅳ | Grade Ⅴ | GradeⅥ |
|---|---|---|---|---|---|---|
| CaCo3 Content | ≥95% | ≥95% | ≥95% | ≥95% | ≥95% | ≥95% |
| Whiteness | ≥94 | ≥93.5 | ≥93.5 | ≥93 | ≥93 | ≥91 |
| Oil-absorbed Value (g/100g) | 39 | 37 | 37 | 35 | 33 | 30 |
| Particle Size | 2.5μm D50 | 3.0μm D50 | 3.5μm D50 | 4.5μm D50 | -- | -- |
| 6μm D97 | 8μm D97 | 11μm D97 | 13μm D97 | 23μm D97 | 45μm D97 | |
| Insoluble Matter in HCL | ≤0.25% | ≤0.5% | ||||
| Activation Grade | ≥95% | ≥90% | ||||
| Other Index | Pb≤0.0010%, Cr(Ⅵ)≤0.0005%, Hg≤0.0001%, As≤0.0002%, Cd≤0.0002% | |||||
Calcium carbonate can play a role in the skeleton of plastic products. It can keep the stability of the plastic product shape. It can also increase the hardness and improve the surface gloss and surface smoothness of the plastic products.If the calcium carbonate whiteness above 90%, it can replace the expensive white pigment.
Ground Calcium Carbonate Powder for Plastic Industry Standard(HG/T3249.3-2013)
| Item | GradeⅠ | GradeⅡ | Grade Ⅲ | Grade Ⅳ | Grade Ⅴ | GradeⅥ | |
|---|---|---|---|---|---|---|---|
| CaCo3 Content | ≥95% | ≥95% | ≥95% | ≥95% | ≥95% | ≥95% | |
| Whiteness | ≥94 | ≥94 | ≥93 | ≥93 | ≥92 | ≥92 | |
| Oil-absorbed Value (g/100g) | 40 | 37 | 3 | 35 | 33 | 30 | |
| Particle Size | D50 | 2μm | 2.5μm | 3μm | 3.5μm | 4μm | 4.5μm |
| D97 | 5.5μm | 6μm | 8μm | 9μm | 11μm | 13μm | |
| Specific Surface Area(m2/g_ | 5.5 | 5 | 3.2 | 3 | 2.5 | 2 | |
| 105℃ volatile matter（w/%） | ≤0.5 | ||||||
| Other Index | Pb≤0.0005%, Cr(Ⅵ)≤0.0003%, Hg≤0.0002%, As≤0.0002%, Cd≤0.0002% | ||||||
Calcium carbonate in the water-based paint industry is more widely used. It can make the paint does not settle, easy to disperse, good gloss and other characteristics. The amount of water-based paint is about 20-60%.
Ground Calcium Carbonate Powder for Paint Industry Standard(HG/T3249.2-2013)
| Item | 2500 Mesh | 2000 Mesh | 1500 Mesh | 1000 Mesh | 800 Mesh | ||||||||||
| Super Grade | First Grade | Qualified | Super Grade | First Grade | Qualified | Super Grade | First Grade | Qualified | Super Grade | First Grade | Qualified | First Grade | Qualified | ||
| CaCo3 | ≥98% | ≥96% | ≥94% | ≥98% | ≥96% | ≥94% | ≥98% | ≥96% | ≥94% | ≥98% | ≥96% | ≥94% | ≥96% | ≥94% | |
| Whiteness | ≥96% | ≥94.5% | ≥91% | ≥96% | ≥94.5% | ≥91% | ≥96% | ≥94.5% | ≥91% | ≥96% | ≥94.5% | ≥91% | ≥93% | ≥91% | |
| Specific surface area | ≥6m2/g | ≥5m2/g | ≥3.2m2/g | ≥2.5m2/g | ≥2m2/g | ||||||||||
| Particle Size | D50 | ≤2μm | ≤2.5μm | ≤3μm | ≤4μm | ≤4.5μm | |||||||||
| D97 | ≤5μm | ≤6μm | ≤8μm | ≤11μm | ≤13μm | ||||||||||
| Oil Absorption | ≤40g/100g | ≤37g/100g | ≤37g/100g | ≤35g/100g | ≤33g/100g | ||||||||||
| Pb (W/%) | ≤0.0010 | ||||||||||||||
| Cr(VI) (W/%) | ≤0.0005 | ||||||||||||||
| Hg (W/%) | ≤0.0002 | ||||||||||||||
| As (W/%) | ≤0.0002 | ||||||||||||||
| Cd (W/%) | ≤0.0002 | ||||||||||||||
| Remark | Note: Pb=Plumbum; Cr=Chrome; Hg=Mercury; As=Arsenic; Cd= Cadmium | ||||||||||||||
Calcium Carbonate as the filler for paper, can guarantee the strength and whiteness of the paper. Then the less wood will be used, the cost is lower.
Ground Calcium Carbonate Powder for Paper-making Industry Standard(HG/T3249.1-2013)
| Item | GradeⅠ | GradeⅡ | Grade Ⅲ | Grade Ⅳ |
|---|---|---|---|---|
| CaCo3 Content | ≥98% | ≥98% | ≥98% | ≥98% |
| Whiteness | ≥95 | ≥94 | ≥94 | ≥93 |
| Oil-absorbed Value (g/100g) | 35 | 33 | 31 | 29 |
| Particle Size | 4μm D50 | 4.5μm D50 | - | - |
| 11μm D97 | 13μm D97 | 23μm D97 | 45μm D97 | |
| Insoluble Matter in HCL | ≤0.25% | |||
| Dust(pc/g) | ≤5 | |||
| Other Index | Pb≤0.0010%, Cr(Ⅵ)≤0.0005%, Hg≤0.0001%, As≤0.0002%, Cd≤0.0002% | |||
Calcium carbonate plays an important role in concrete in the construction industry. Not only can reduce production cost, but also can increase the toughness and strength of the product. Dry Mortar Requirements: Particle Size: 325 Mesh Whiteness: 95% CaO3 Content: 98%
Calcium carbonate can increase calcium content in feed and improve feed quality. Technical Data of GCC for Feed:Ground Calcium Carbonate Powder for Poultry Industry Standard(DB43T 699-2012)
| Item | Index |
|---|---|
| Mositure Content | ≤1% |
| CaCo3 Content | ≥95% |
| Ca Content | ≥38.0% |
| Insoluble Matter in HCL | ≤0.2% |
| Particle Size | 0.52mm D95 |
Calcium carbonate can be used in the floor tile industry to increase the product's whiteness and tension, improve product toughness, reduce production costs.
Technical Data of GCC for Floor Tile
Particle Size: 400 Mesh Whiteness: 95% CaO3 Content: 98.5%
Technical Data of GCC for Artificial Marble
Particle Size: 325 Mesh Whiteness: 95% CaO3 Content: 98.5%
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