Applications of Calcium Carbonate

1. Introduction of Calcium Carbonate
Calcium carbonate, or CaCO3, is found throughout the world and is one of the most commonly occurring minerals. In its natural form, it appears as chalk, limestone, and marble. Although all three forms are identical in chemical terms, they differ in many other respects, including purity, whiteness, thickness and homogeneity. It is also the main component of animal bones or shells.Calcium carbonate is one of the most useful and versatile materials known to man and wet and dry grinding methods are used in processing it for industrial applications.


Part2
2. Applications of Calcium Carbonate
Paper, Plastics, Paints, and Coatings:
Calcium carbonate is the most widely used mineral in the paper, plastics, paints and coatings industries both as filler and as a coating pigment. In the paper industry, it is used as an inexpensive filler and is greatly valued for its high brightness and light scattering characteristics. In the paints industry, it is used widely used an extender and can represent as much as 30% by weight in paints. It is also one of the widest used substances in the production of master batches for the plastic industry. It also is used as a filler in adhesives, and sealants.
Personal Health and Food Production:
Calcium carbonate is used widely as an effective dietary calcium supplement, antacid, phosphate binder, or base material for medicinal tablets. It also is found in many grocery products such as baking powder, toothpaste, dry-mix dessert mixes, dough, and wine. Calcium carbonate is the active ingredient in agricultural lime, and is used in animal feed as well as water and waste treatment.
Building Materials and Construction:
Calcium carbonate is used both as a building material in the form of marble and as an ingredient of cement. It contributes to the making of mortar used in bonding bricks, concrete blocks, stones, roofing shingles, rubber compounds, and tiles. Calcium carbonate decomposes to form carbon dioxide and lime, an important material in making steel, glass, and paper. Because of its antacid properties, calcium carbonate is used in industrial settings to neutralize acidic conditions in both soil and water.

size Application
3.5 µm Paper / board
Paints Interior emulsion paints Primers Powder coatings
Plastics PVC plastisols / Automobile underseal
Paints Matt, high PVC interior emulsion paints Powder coatings Industrial paints Water-thinnable lacquers
4 .5 µm Paints Gloss- and semigloss decorative paints Brushing enamels
5 µm Paints Matt, high PVC interior emulsion paints Powder coatings Industrial paints Water-thinnable lacquers
6 µm Paints Industrial paints Brushing enamels Powder coatings Stoving enamels Water-thinnable lacquers
Plastics Plasticized PVC / Profiles/ Mouldings / Coatings
ADDITIONAL APPLICATIONS Adhesives
8 µm Paints Interior emulsion paints Brushing enamels Primers Powder coatings
PVC plastisols Profiles Blown film moulding
ADDITIONAL APPLICATIONS Elastomers Rubber Technical parts Profiles
12 µm       
Paints Interior emulsion paints Brushing enamels Primers
Plastics Plasticized PVC / Profiles / Artificial leather Polyolefins / Compound/ masterbatch
ADDITIONAL APPLICATIONS Adhesives
15 µm Paints Industrial paints Primers Hydrofiller Anti-corrosion primers
Plastics Rigid PVC / Profiles / Calendered sheets / pipes Polyolefins / Compound / masterbatch
20 µm Plastics Rigid PVC / Profiles / Calendered sheets / pipes Polyolefins / Compound / masterbatch
Paints Industrial paints Primers Hydrofiller Anti-corrosion primers
3.5 µm to 15 µm Coated Paints Interior emulsion paints Brushing enamels Primers Powder coatings Road Marking Paints
Plastics Polyolefins / Compound / masterbatch Plasticized PVC Thermosets

Part3
3. Calcium Carbonate Powder for Animal Feed

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Item

Index

Zenith Capable Products

Mositure Content

≤1%

HM Series Hammer Mill +Virating Screen

CaCo3 Content

≥95%

Ca Content

≥38.0%

Insoluble Matter in HCL

≤0.2%

Particle Size

0.52mm. D95

Part4
4. Calcium Carbonate Powder for Rubber Industry

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Item

GradeⅠ

GradeⅡ

Grade Ⅲ

Grade Ⅳ

Grade Ⅴ

GradeⅥ

Zenith Capable Products

CaCo3 Content

≥95%

≥95%

≥95%

≥95%

≥95%

≥95%

 

XZM Ultrafine Mill+LUM Ultrafine Vertical Roller Mill

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%

Part5
5. Calcium Carbonate Powder for Paint Industry

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Item

GradeⅠ

GradeⅡ

Grade Ⅲ

Grade Ⅳ

Grade Ⅴ

Zenith Capable Products

CaCo3 Content

≥98%

≥98%

≥98%

≥98%

≥98%

 

 

 

XZM Ultrafine Mill+LUM Ultrafine Vertical Roller Mill

Whiteness

≥96

≥96

≥95

≥95

≥93

Oil-absorbed Value
(g/100g)

40

37

37

35

33

Particle Size

2μm D50

2.5μm D50

3.0μm D50

4.0μm D50

4.5μm D50

5μm D97

6μm D97

8μm D97

11μm D97

13μm D97

Other Index

Pb≤0.0010%, Cr(Ⅵ)≤0.0005%, Hg≤0.0002%, As≤0.0002%, Cd≤0.0002%

Part6
6. Calcium Carbonate Powder for Paper Industry

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Item

GradeⅠ

GradeⅡ

Grade Ⅲ

Grade Ⅳ

Zenith Capable Products

CaCo3 Content

≥98%

≥98%

≥98%

≥98%

 

 

 

 

XZM Ultrafine Mill+LUM Ultrafine Vertical Roller Mill

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%

Part7
7. Calcium Carbonate Grinding System

1) MTW Grinding System

2) XZM Grinding System

3) LM Grinding System

4) LUM Grinding System


Part8
8. Customer Cases

Case1
Project background: The customer is a group company, and has related businesses all over the country. One of them is to make desulfurized stone powder, supply power plant desulfurization, and cooperate in the early stage. After that, it has been using Zenith equipment. This time, it purchased two sets of MTW175 Euro-type grinding mill
Material: Limestone
Input size≤40mm
Output size: 250mesh D95
Daily Operation: 10h/day

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Case2
Material: Calcite
Application: plastic filler
Output Size: 800-1250 Mesh
Location: Turkey

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Case3
Material: Limestone
Application: Construction Material
Output Size:200 Mesh
Capacity:>60T/H
Location: Russia
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Case4
Material: Calcium carbonate
Application: Masterbatch, plastic, paint
Output Size:5-20micro(μm)
Location: Vietnam
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