中文
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Dalian heqi imp.&exp.co.,ltd, is a imports and exports mining company in Dalian city of Liaoning province. Primarily engaged in processing minerals. The company property mainly manufactures wollastonite,barite,etc. Quality, Integrity, Innovation is our business ideas. Relying on quality products, good services, our company possess good reputation in the line.
Our products have been sold in Europe, America, Asia and other countries, unanimously well received by Chinese and foreign customers. Mr. Chairman lianchun yang welcome circles to visit our company, we would like to go hand in hand sincerely, to establish our prosperous future.
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Barite Standard
| Whiteness |
BASO(%) |
Specific Gravity |
| 80 |
92% |
4.1 |
| 82 |
92% |
4.1 |
| 85 |
95% |
4.2 |
| 85 |
97% |
4.3 |
| 88 |
97% |
4.3 |
| 90 |
≥93% |
4.15 |
| 94 |
≥98% |
4.4 |
Technical Specification
| Technical Specification |
Fineness |
Whiteness |
BASO (%) |
Specific Gravity |
Granularity
Distributing (um)
[Average] |
| Rock oil Grade |
325 |
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>90 |
4.20↑ |
20 |
| The paint and coating industry |
325 |
>80 |
>90 |
4.25↑ |
12.0 |
| 400 |
>90 |
>97 |
4.34↑ |
13.0 |
| 600 |
>90 |
>97 |
4.30↑ |
13.0 |
| 800-1250 |
>90 |
>97 |
4.30↑ |
13.0 |
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WOLLASTONITE
Usage:
Wollastonite is used in ceramics, paint, friction products (brakes and clutches), joint compounds, refractories, rubber, wallboard, and metallurgical applications. In ceramics it decreases shrinking, permits fast firing, reduces cracking, and also prevents glaze defects. In paint it acts as a PH buffer to help resist weathering. It improves tensile and flexural strength of plastics. It also improves the stability of plastics at raised temperatures. One other thing that wollastonite is used for is as a flux for welding, or controlling casting speed during continuous casting of steel,. These are used throughout Europe and are catching on in the US. |
1．Glaze grade 200-400 mesh wollastonite powder
SIO2 |
CaO |
Fe2O3 |
L.O.I. |
CO2 |
≥49% |
≥45% |
≤0.5% |
≤1.8% |
≤1.5% |
2．Ceramic grade 200-325 mesh wollastonite powder
SIO2 |
CaO |
Fe2O3 |
L.O.I. |
≥49% |
≥44% |
≤0.5% |
≤1.5% |
3．Filler grade 325-2500 mesh wollastonite powder
SIO2 |
CaO |
Fe2O3 |
L.O.I. |
≥49% |
≥43% |
≤0.5% |
≤1.5% |
4．Metallurgical industry grade 200 mesh wollastonite powder
SIO2 |
CaO |
Fe2O3 |
L.O.I. |
MgO |
Al2O3 |
CO2 |
≥49% |
≥45% |
≤0.08% |
≤1.5% |
≤1% |
≤1% |
≤1.4% |
5．Welding grade wollastonite powder
SIO2 |
CaO |
Fe2O3 |
L.O.I. (1050℃) |
MgO |
S |
P |
≥49% |
≥46% |
≤0.3% |
≤1.2% |
≤1% |
≤0.01% |
≤0.01% |
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Address: Room 601, Kunlun no.9 Zhigong street Zhongshan district Dalian China
Contact Name: Lianchun Yang
Zip Code: 116001
Tel: 0086-411-82827218 , 82562816 , 82903218
Fax: 0086-411-82810866
Email: lnjc@21cn.com
talc8888@sina.com.cn
talccn@163.com
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