Superfine Wollastonite powder

Ceramic grade wollastonite manufacturer of wollastonite powder with high quality,competitve price 80-1250mesh wollastonite

1.Introducation: 

Chemical Composition of Wollastonite

Physical Properties of Wollastonite

2.wollastonite powder for ceramics

TECHNICAL DATA  FEATURES

good insulation performance, endure acid, resist abrade, bear high temperature,

high purity near the theoretic component

good needle-shape, low ignition loss

low content of harmful constituent such as fe2o3, s and p 

SPECIFICATION:

CHEMICAL ANALYSIS	INDEX
SiO2	50%
Cao	45
Al2O3	0.7%;
Fe2O3	0.3%
K2O	12-14%
Na2O	0.2%-2%

GRAIN SIZE:

400 mesh/800 mesh/1250 mesh

3.Wollastonite Powder for friction linings:

Size: 100mesh, 200mesh    Shape: Acicular

Factory Supply:Good quality, competitive price

Note: The sizes could be adjusted according to customer's requirement.

 

Data for Reference:

Element	SiO2	CaO	Fe2O3	Al2O3	MgO	L.O.I
Content%	50.30	46.65	0.22	0.26	0.35	2.01

 

PHYSICAL PROPERTY		CHEMICAL COMPONENT
Coefficient of expansionmm/mm/	6.0×106	SiO2	50%min
Refractive index	1.63	CaO	46%min
Melting point	1450	Fe2O3	0.3%max
hardness	4.55.0	AL2O3	0.46%max
Specific Gravity	2.91	MgO	0.60%max
Whiteness	8892	MnO	0.02%max
PH(10% slurry)	9.8	TiO2	0.02%max
Aspect Ratio	2030	LOI	3.0%max

Application:

Wollastonite is widely used in friction linings, ceramic&glaze products, metallurgy and paper making, oil paint, fibre cement based products, plastics, rubber, electric welding, glass, electron etc. industries.

 

4.acicular wollastonite powder

 

hardness:4.4-5.5 density:2.75-3.10g/cm3 color:white

 

 

TECHNICAL DATA    FEATURES

 

good insulation performance, bear high temperature,

 

high purity near the theoretic component

 

good needle-shape, low ignition loss

 

low content of harmful constituent such as fe2o3, s and p

 

SPECIFICATION: 

 

CHEMICAL ANALYSIS	INDEX
CaCo3	98%
MgO	0.1
Al2O3	0.07%;
Fe2O3	0.03%
K2O	0.14%

 

 

5.plastic stuffing -- acicular wollastonite

Acicular wollastonite is a calcic mineral of meta-silicate, its chemical formula is CaSiO3. Use:PA6,PP,PE Packing:800KG bags

Acicular wollastonite, as calcic metasilcate mineral, is a new kind of industrial raw mineral materials. At present, it’s mainly applied to ceramic industry, and secondly used as metallurgy protecting slag and paint. Further, it can be used as electrode coating, mountain cork substitute, abradant binding agent, compound of glass and stuffing of rubber, plastic, insulating material and paper. Some wollastonite can be used as finishing material of building or compound of white cement.

Main technical indicators:

Name	CaO	SiO2	Fe2O3	whiteness	Activation grade	Mesh	LOI	H2O	Length- Diameter ratio	Settling volume
Acicular wollastonite	44-46	48-53	≤0.3	≥88	≥90	600-1250	≤2.5	≤0.5	10-15:1	≥50ml/15g

 

6. Metallurgic & Welding Grade Wollastonite

 

1. Used in metallurgic industries; 2. Low S and P content; 3. Competitive price; 4. Professional service

 

*Metallurgic Grade

Physical-chemical index (%):

Model	SiO2 (%)	CaO (%)	Fe2O3 (%)	MgO (%)	S (%)	P (%)	LOI (%)
LN-MA	≥49	≥43	≤1.0	≤1.0	≤0.01	≥0.01	≤1.0
LN-MB	≥49	≥43	≤1.0	≤1.0	≤0.01	≥0.04	≤2.0

 

Features:

1) 50 mesh to 325 mesh

2) Used in continuous casting flux, agglomerated flux.

 

Welding grade

 

1. Physical-chemical index (%):

Model	SiO2 (%)	CaO (%)	Fe2O3 (%)	MgO (%)	S (%)	P (%)	LOI (%)
LN-WA	≥49	≥43	≤1.0	≤1.0	≤0.01	≥0.04	≤2.0

 

2. Features:

1) 50 mesh to 325 mesh

2) Used in welding electrodes

 

7. wollastonite for papermaking

1. Acicular(needle-shaped), long aspect ratio2. Used in papermaking to replace part of pulp, enhancing paper performances.

 

3. Interweave with pulp to form net structure

 

4. Non-toxic and environment-friendly

 

 

 

 

 

5. Micronized powder with good producing cost

 

 

 

Chemical specs.: SiO2:49%min  CaO:44%min  Fe2O3:0.3%max.  MgO:2%MAX.

 

 

 

 

 

Physical property:

 

pysical specs.	D50(μm)	loose density(g/cm3)	tapped density(g/cm3)	whiteness	Mohs hardness	L/D
Value	10±14	0.5max	0.88	89%-93%	4.5	8-18:1

 

7.Photo:

Superfine Wollastonite powder