Calcite

Processing Technology

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Application of Calcite powder

Rubber Plastic Paint Paper Making Paper Building

Calcite 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.Calcite as the filer can increase the tensile strength, tear strength and abrasive resistance of the rubber products

Calcite 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	--	--
Particle Size	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%

Calcite 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.

Calcite 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
Particle Size	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%

Calcite 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%.

Calcite 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

≤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

Calcite 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.

Calcite 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	-	-
Particle Size	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%

Technical Data of Calcite for Paper-making Industry

	Filler Level		First coat Level		Topcoat Level
					Low Speed		Mid&High Speed
	Low Speed	Mid&High Speed	Low Speed	Mid&High Speed	Common Quality	High Quality	Common Quality	High Quality
Particle Size (μm)	<15-40	<8-10	<10-15	<5-8	<8	<5	<5-8	<3
<2μm Content (%)	－	40-70	40-75	60-75	88-95	88-95	90-95	95-100
<1μm Content (%)	－	15-30	10-45	30-50	50-80	50-80	60-90	85-95
Residue Rate (%)	≦0.5	≦0.2	－	－	－	－	－	－
Abrasiveness(copper net) mg/2000 times	<15-10	<5	<8	<5	<5	<5	<3	<2
Abrasiveness（Polyester Net）mg/15h	<30	<20	<20	<15	<15	<5	<10	<10
Whiteness (%) ISO	85-97	85-97	88-97	88-97	90-97	90-97	93-97	95-97
Acid non-soluble Substance (%)	<0.2	<0.2	<0.02	<0.02	<0.02	<0.02	<0.02	<0.02
Viscosity / mPa·S	－	<40-100	－	80-200	<100-250	<100-250	<150-300	<150-300
Solid Content	－	70%-75%	－	70%-78%	70%-78%	70%-78%	70%-78%	70%-78%
Processing Technology	Dry	Wet	Dry	Wet	Wet	Wet	Wet	Wet

Note: Low Speed: 600 m/Min Mid and High Sped: 800-2000 m/Min

Calcite 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%

How to produce? Contact the engineer