Acicular Wollastonite-CAO 45 with High Quality

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20 m.t.
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1000 m.t./month

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Product Description:


1. Size:325-1250mesh 

2. SiO2:49-50% 

3. Packing:1ton bags or 25kg 

4. Delivery time:15-20days 

5 Price:300-350$

1. Product introduction

Wollastonite belongs to triclinic, crystal usually extends along Y-axis and becomes board shape, bacilliform or acicular. Pure wollastonite appears to be white, ivory-white light gray, light green or pink colour. Its appearance has vitreous luster.

Our company can manufacture many kinds of fine wollastonite powder, it is all manufactured by high quality raw materials. It has many good characteristics, such as granularity equality, homogeneous, high purity, endless catenulate, acicular crystallize, high whiteness, low ferrous, minimum S, P, low oil-absorption and etc.

2. Chemical Properties

SiO2     CaOFe2O3  Al2O3  MgO   S    P  Loss

%max    %max%min  %min  %min  %min  %min  %min

 49    45        0.2  0.8  0.8 0.001  0.001   1.5

 49    46        0.25  0.8  0.8 0.001  0.001   1.5

 50    43        0.2  0.8  0.8 0.001  0.001    3

 49    45        0.25  0.8  0.8 0.001  0.001   1.6

 49    43        0.2  0.8  0.8 0.001  0.001   2.5

3. Main Use

Ceramic       Coating


Plastic       Frictional materials

Rubber       Insulator

Paint       Building materials

Composite materialsOthers

4: Picture

Acicular Wollastonite-CAO 45 with High Quality

Acicular Wollastonite-CAO 45 with High Quality

Acicular Wollastonite-CAO 45 with High Quality

Acicular Wollastonite-CAO 45 with High Quality

3.Main applications of wollastonite


MetallurgyFriction material

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Q:What are the surface modification methods and processes of wollastonite?
Wollastonite is a calcium metasilicate mineral, often white and greyish white, with a glassy luster to a pearly luster. Because of its non-toxic, chemical corrosion resistance, thermal stability and dimensional stability, good mechanical and electrical properties, as well as strengthening and other advantages, it is widely used as reinforced fillers for polymer matrix composites.
Q:What is the best way to dig a conglomerate?
The conglomerate is defined by more than 50% particle diameter greater than 2 mm is composed of clastic rock. The degree of rounding better gravel cementation and become conglomerate; with the edges of the corner by gravel, gravel and cement as breccia.
Q:Does plastic modification add wollastonite to improve tearing properties?
The question is a bit vague. For example, PP+20% wollastonite modification, the tensile strength, modulus and other aspects will play a certain degree of improvement, if you say the tearing property is one thing with stretching it, then obviously improved.
Q:The difference between silica powder and wollastonite powder
Due to its special crystal morphology crystalline structure determines the properties of wollastonite, has good insulation, and has high whiteness, good dielectric properties and high heat resistance and weatherability. Because wollastonite is widely used in ceramics, chemical industry, metallurgy, papermaking, plastic, paint and other fields.
Q:Conglomerate can not be exploited to destroy
Round and sub round gravel with a particle size greater than 2 mm, accounting for more than 30% of the total amount of clastic rock. Clastic components in conglomerate are mainly debris, only a small amount of mineral debris, and the interstitial materials are sand, silt, clay and chemical precipitation material. According to the size of gravel conglomerate, divided into boulders (>256 mm), large conglomerate gravel (64 ~ 256 mm) pebble conglomerate, (4 to 64 mm) and fine gravel conglomerate (2 to 4 cents by the conglomerate and bioturbation limestone conglomerate m). According to the complexity of gravel composition, conglomerate can be divided into single component conglomerate and compound component conglomerate. According to the location of conglomerate in geological section, they can be divided into bottom conglomerate and interlayer conglomerate. The bottom conglomerate is located at the bottom of transgressive sequence, which is unconformity or pseudo contact with the lower rock layer, and represents the hiatus of a certain geological period. For example, Hebei, Tangshan, Sinian, bottom, the Great Wall, quartz conglomerate. The interlayer conglomerate is consolidated within the stratum and does not represent any erosion discontinuity. For example, the Cambrian and Ordovician carbonate rocks in northern china.
Q:The function of wollastonite powder
Wollastonite chemical composition close to the theoretical value, high purity, fine acicular structure, with low loss, harmful components (MnO, Fe203) content is low, the indicators better than similar domestic ore.
Q:Latex paint, wollastonite powder can replace all heavy calcium carbonate?
Shuangfei powder is also called the "big white", the main component is calcium carbonate, also referred to as "tsp". Is widely used in ceramics, rubber, plastics, paper, paint, paint, ink, cable, food, medicine, textile, feed, toothpaste and other daily chemical industry as a filler to increase the volume of products, reduce the production cost.
Q:What is the difference between wollastonite powder and calcium carbonate?
Wollastonite is calcium silicate and calcium carbonate is carbonate.
Q:Excuse me, why is paste tile with stone powder, paste wall tiles with river sand?
The stone powder is generally much cheaper than river sand, and the amount of floor tile is large, and the stone powder is much more economical and convenient to draw materials.Note: cement paste is usually used as cement wall, not cement mortar. Only when the wall surface is poor, cement mortar can be used when leveling layer is used.
Q:Main characteristics of Wollastonite
The chemical formula of wollastonite is CaSiO3, the structural formula is Ca3[Si3O9], and the theoretical chemical components are CaO 48.25% and SiO2 51.75%. In nature, pure wollastonite is rare, and in its formation, Ca is sometimes replaced by Fe, Mn, Ti, Sr plasma, and is isomorphous, with a small amount of Al and trace amounts of K and Na.

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