Description
Wollastonite has many excellent performances including fine insulativity, high whiteness,good dielectric property and better heat-resisting and weather-resisting performances. Wollastonite can be widely used in the fields of ceramics, chemical industry, metallurgy, papermaking, plastics, coating and other fields.
Our wollastonite have many advantages such as lower Fe content, lower LOI and higher whiteness. Our wollastonite is chosen by manpower. It is defined into two classes-Class I and Class II based on different Ca contents.
Item Typical Value
SiO2 (m/m,%) 57-60%
CaO (m/m,%) 30-35%
Fe2O3 (m/m,%) 0.5%max
MgO (m/m,%) 1.5%max
LOI. 2-4%
Whiteness 85-88
Shape Powder
Description:
Wollastonite, a natural calcium silicate mineral, is unique among soil amendments as a source of silicon and carbon-neutral calcium.
HK products are made by crushing, drying and milling the wollastonite ore. The same ore is used for all grades, which differ only in particle size distribution.It is milled natural ore.
Our advantages:
1.lower Fe content
2.lower LOI
3.higher whiteness
4.chosen by manpower
5. we can also choose the mineral according to the clients specific requirements.
Parameters:
Item Typical Value
SiO2 (m/m,%) 50%min
CaO (m/m,%) 43%min
Fe2O3 (m/m,%) 0.5%max
MgO (m/m,%) 1.5%max
LOI. 2%max
Whiteness 88-90
Shape Powder
325 Mesh
Description:
Wollastonite has bright color and high reflectivity, which could be suitable for the production of high-quality white paints and clear transparent paints.wollastonite is a good additive with higher fraction of color coverage and homogeneous distribution. Based on its UV resistance, it is widely used in interior wall paints, exterior wall paints, special paint (especially fireproof paint) and latex paints.
Wollastonite powder which can partly replace titanium dioxide to produce paint coating can not only improve the color of products, improve the gloss of the paint, enhance the anti-tensile ability of the paint, reduce the crack, but also can reduce the oil absorption and enhance the anti-corrosion ability.
The finer particle size, higher whiteness and pH value can greatly improve the color and coating property of the paints, which can be helpful to produce anticorrosive coating for metal equipment such as steel pieces. Wollastonite can also be used as the filler of paint coating to improve the physical and chemical properties, durability and weather resistance and reduce the fracture and aging of the paint.
The quality requirements of wollastonite in paint coatings are: SiO2 49%min, CaO 45%min, Fe2O3 0.2%, 325 mesh, mineral powder oil absorption amount is 20-25g/100g, water soluble matter 0.5%, water extraction pH value is 7-9, whiteness 90%.
Dead Burned Magnesite is produced by natural magnesite after high-temperature being calcined in the vertical kilns.It is an ideal material for making bricks and unshaped refractory materials,its finished products are used in Steelmaking furnaces,eletric furnace bottom and ramming furnace lining.
Specification
GradeMgO,% SiO2,% CaO,% lgL,% B.D%
DBM-92923.52.00.33.15
DBM-91914.02.00.33.15
DBM-90904.52.50.33.13
DBM-89894.82.70.53.10
Application:
A.Refractory Industry
B.Flame retardants
C.Agricultural Grade
D.Building Industry
E:Food grade
F:Abrasive
G:Medical grade
H:Chemical industry
Wollastonite is chemically a Calcium MetaSilicate (CaSiO3),Wollastonite with dense shaped ceramic structure can improve the mechanical strength, reduce the wet expansion coefficient, improve the bodys strength and molding quality, and reduce the sintering temperature so that rapid sintering in low temperatures, the purpose of energy saving and efficiency can be achieved. In the glaze making industry, wollastonite can improve the whiteness and fluidity of glaze, and reduce the defects of products.
Wollastonite can be used to produce all kinds of electroceramics, architectural porcelain/ceramics, daily-use ceramics and brake pads, etc. Nearly half of the world's annual output amount of wollastonite is used in ceramics as the largest production field.Wollastonite in China is mainly used in glazed bricks and ceramic bodies, copying more than 50% of the total consumption amount of wollastonite.
Applications:
This product can be used in ceramic glazes.
Adding wollastonite powder in ceramic can reduce the sintering temperature and shorten the firing time, which can save a lot of fuel, improve the products mechanical properties, reduce crazing, cracking, breakage, enamel defects and other problems.
It can also improve the embryo strength, reduce the products weight, increase the luster of ceramic glazes, reduce the mud viscosity, which can reduce costs, and improve the quality and yields of ceramic products.
With the excellent insulation properties, high impact strength and shape stability, it can be used in insulating ceramic industry and the craft ceramic industries
Our advantages:
1.lower Fe content
2.Lower loss on ignition (LOI)
3.Fewer surface defects
4.Improved shrinkage control
5.Higher impact strengthCarbon
6.Faster drying times
7.higher whiteness
Applications:
Specific wollastonite powder can be used to be the substitute for lithopone, part of titanium dioxide, white carbon black, light calcium and clay in different finished rubber products.
The application results show that wollastonite can improve the covering ability of white colorant and play a role in whitening.It can replace a large quantity of titanium dioxide, clay and lithopone in the adhesives with light colors, which can strengthen the qualities of the products and reduce the cost.The combination of wollastonite and coupling agents can improve the properties of rubber compounds and expand its application range.
Our advantages:
1.lower Fe content
2.Lower loss on ignition (LOI)
3.Fewer surface defects
4.Improved shrinkage control
5.Higher impact strength
6.Faster drying times
7.higher whiteness
Applications:
Wollastonite powder can be widely used in ceramic glaze.
Chemical component CaSiO3
SiO2 (m/m,%) 50%min
CaO (m/m,%) 43%min
Fe2O3 (m/m,%) 0.5%max
MgO (m/m,%) 1.5%max
LOI. 1.5%max
Whiteness 88-91
Shape Powder
200 mesh
325 mesh
1250 mesh
2500 mesh
Description:
Wollastonite has bright color and high reflectivity, which could be suitable for the production of high-quality white paints and clear transparent paints.wollastonite is a good additive with higher fraction of color coverage and homogeneous distribution. Based on its UV resistance, it is widely used in interior wall paints, exterior wall paints, special paint (especially fireproof paint) and latex paints.
Wollastonite powder which can partly replace titanium dioxide to produce paint coating can not only improve the color of products, improve the gloss of the paint, enhance the anti-tensile ability of the paint, reduce the crack, but also can reduce the oil absorption and enhance the anti-corrosion ability.
The finer particle size, higher whiteness and pH value can greatly improve the color and coating property of the paints, which can be helpful to produce anticorrosive coating for metal equipment such as steel pieces. Wollastonite can also be used as the filler of paint coating to improve the physical and chemical properties, durability and weather resistance and reduce the fracture and aging of the paint.
The quality requirements of wollastonite in paint coatings are: SiO2 49%min, CaO 45%min, Fe2O3 0.2%, 325 mesh, mineral powder oil absorption amount is 20-25g/100g, water soluble matter 0.5%, water extraction pH value is 7-9, whiteness 90%.
Applications:
Specific wollastonite powder can be used to be the substitute for lithopone, part of titanium dioxide, white carbon black, light calcium and clay in different finished rubber products.
The application results show that wollastonite can improve the covering ability of white colorant and play a role in whitening.It can replace a large quantity of titanium dioxide, clay and lithopone in the adhesives with light colors, which can strengthen the qualities of the products and reduce the cost.The combination of wollastonite and coupling agents can improve the properties of rubber compounds and expand its application range.
Our advantages:
1.lower Fe content
2.Lower loss on ignition (LOI)
3.Fewer surface defects
4.Improved shrinkage control
5.Higher impact strength
6.Faster drying times
7.higher whiteness
Description:
Wollastonite, a natural calcium silicate mineral, is unique among soil amendments as a source of silicon and carbon-neutral calcium.
HK products are made by crushing, drying and milling the wollastonite ore. The same ore is used for all grades, which differ only in particle size distribution.It is milled natural ore.
Our advantages:
1.lower Fe content
2.lower LOI
3.higher whiteness
4.chosen by manpower
5. we can also choose the mineral according to the clients specific requirements.
Parameters:
Item Typical Value
SiO2 (m/m,%) 50%min
CaO (m/m,%) 43%min
Fe2O3 (m/m,%) 0.5%max
MgO (m/m,%) 1.5%max
LOI. 2%max
Whiteness 88-90
Shape Powder
325 Mesh
Applications:
This product can be used in ceramic glazes.
Adding wollastonite powder in ceramic can reduce the sintering temperature and shorten the firing time, which can save a lot of fuel, improve the products mechanical properties, reduce crazing, cracking, breakage, enamel defects and other problems.
It can also improve the embryo strength, reduce the products weight, increase the luster of ceramic glazes, reduce the mud viscosity, which can reduce costs, and improve the quality and yields of ceramic products.
With the excellent insulation properties, high impact strength and shape stability, it can be used in insulating ceramic industry and the craft ceramic industries
Our advantages:
1.lower Fe content
2.Lower loss on ignition (LOI)
3.Fewer surface defects
4.Improved shrinkage control
5.Higher impact strengthCarbon
6.Faster drying times
7.higher whiteness
Description
Wollastonite has many excellent performances including fine insulativity, high whiteness,good dielectric property and better heat-resisting and weather-resisting performances. Wollastonite can be widely used in the fields of ceramics, chemical industry, metallurgy, papermaking, plastics, coating and other fields.
Our wollastonite have many advantages such as lower Fe content, lower LOI and higher whiteness. Our wollastonite is chosen by manpower. It is defined into two classes-Class I and Class II based on different Ca contents.
Item Typical Value
SiO2 (m/m,%) 57-60%
CaO (m/m,%) 30-35%
Fe2O3 (m/m,%) 0.5%max
MgO (m/m,%) 1.5%max
LOI. 2-4%
Whiteness 85-88
Shape Powder
Wollastonite is chemically a Calcium MetaSilicate (CaSiO3),Wollastonite with dense shaped ceramic structure can improve the mechanical strength, reduce the wet expansion coefficient, improve the bodys strength and molding quality, and reduce the sintering temperature so that rapid sintering in low temperatures, the purpose of energy saving and efficiency can be achieved. In the glaze making industry, wollastonite can improve the whiteness and fluidity of glaze, and reduce the defects of products.
Wollastonite can be used to produce all kinds of electroceramics, architectural porcelain/ceramics, daily-use ceramics and brake pads, etc. Nearly half of the world's annual output amount of wollastonite is used in ceramics as the largest production field.Wollastonite in China is mainly used in glazed bricks and ceramic bodies, copying more than 50% of the total consumption amount of wollastonite.
Dead Burned Magnesite is produced by natural magnesite after high-temperature being calcined in the vertical kilns.It is an ideal material for making bricks and unshaped refractory materials,its finished products are used in Steelmaking furnaces,eletric furnace bottom and ramming furnace lining.
Specification
GradeMgO,% SiO2,% CaO,% lgL,% B.D%
DBM-92923.52.00.33.15
DBM-91914.02.00.33.15
DBM-90904.52.50.33.13
DBM-89894.82.70.53.10
Application:
A.Refractory Industry
B.Flame retardants
C.Agricultural Grade
D.Building Industry
E:Food grade
F:Abrasive
G:Medical grade
H:Chemical industry
Applications:
Wollastonite powder can be widely used in ceramic glaze.
Chemical component CaSiO3
SiO2 (m/m,%) 50%min
CaO (m/m,%) 43%min
Fe2O3 (m/m,%) 0.5%max
MgO (m/m,%) 1.5%max
LOI. 1.5%max
Whiteness 88-91
Shape Powder
200 mesh
325 mesh
1250 mesh
2500 mesh
Applications:
Wollastonite powder can be widely used in ceramic glaze.
Chemical component CaSiO3
SiO2 (m/m,%) 50%min
CaO (m/m,%) 43%min
Fe2O3 (m/m,%) 0.5%max
MgO (m/m,%) 1.5%max
LOI. 1.5%max
Whiteness 88-91
Shape Powder
200 mesh
325 mesh
1250 mesh
2500 mesh
Dead Burned Magnesite is produced by natural magnesite after high-temperature being calcined in the vertical kilns.It is an ideal material for making bricks and unshaped refractory materials,its finished products are used in Steelmaking furnaces,eletric furnace bottom and ramming furnace lining.
Specification
GradeMgO,% SiO2,% CaO,% lgL,% B.D%
DBM-92923.52.00.33.15
DBM-91914.02.00.33.15
DBM-90904.52.50.33.13
DBM-89894.82.70.53.10
Application:
A.Refractory Industry
B.Flame retardants
C.Agricultural Grade
D.Building Industry
E:Food grade
F:Abrasive
G:Medical grade
H:Chemical industry
Description:
Wollastonite, a natural calcium silicate mineral, is unique among soil amendments as a source of silicon and carbon-neutral calcium.
HK products are made by crushing, drying and milling the wollastonite ore. The same ore is used for all grades, which differ only in particle size distribution.It is milled natural ore.
Our advantages:
1.lower Fe content
2.lower LOI
3.higher whiteness
4.chosen by manpower
5. we can also choose the mineral according to the clients specific requirements.
Parameters:
Item Typical Value
SiO2 (m/m,%) 50%min
CaO (m/m,%) 43%min
Fe2O3 (m/m,%) 0.5%max
MgO (m/m,%) 1.5%max
LOI. 2%max
Whiteness 88-90
Shape Powder
325 Mesh
