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Hot-sale, high quality,widely use of Acicular Wollastonite
Hot-sale, high quality,widely use of Acicular Wollastonite
Supplier Info
[China Supplier]
Contact Person : Mr. Wang Zhaoqing
Tel : 86-311-89871437
Fax : 86-311-89180427
Product Detail
superfine,widely use acicular wollastonite manufacturer of wollastonite powder with high quality,competitve price

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:

Hot-sale, high quality,widely use of Acicular Wollastonite

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