Metallurgical Wollastonite-Grade A With High Quality

Metallurgical Wollastonite-Grade A With High Quality System 1

Metallurgical Wollastonite-Grade A With High Quality

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 1000 m.t./month

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USAGE:

Wollastonite is widely used in ceramic, coatings, plastics, rubber, welding, chemical, metallurgy, construction, automobile ,asbestos substitutes and paper industry . We can supply different grades of wollastonite powder, Acicular Wollastonite and other formal product.

Wollastonite
Cas no: 13983-17-0

1*20 FCL can load about 25-27 tons.

SPECIFICATION OF CERAMICS GRADE

DescriptionWhite powder

ItemsSiO2 %CaO %MgO %Fe2O3 % S %P %Al2O3Loss %

Grade A≥49≥46≤0.8 ≤0.3≤0.01≤0.01 ≤ 0.8≤1.5

Grade B≥50 ≥43≤0.8 ≤0.3≤ 0.01≤0.01 ≤ 0.8≤3

Grade C≥51≥40≤0.8≤0.35≤ 0.01≤0.01≤ 0.8≤5

Size80-400 mesh or as request

Specification for Metallurgical Grade

ItemsSiO2 %CaO %MgO %Fe2O3 % S % P %Loss %White Grade

Grade A45-5638-43≤0.8≤ 0.2≤0.001≤0.0014.5-5.5 ≥80

Grade B49-5144-46≤0.8≤ 0.2≤0.001≤0.0011-2.5 ≥85

Size: From 80 mesh to 400mesh or adjusted according to customer’s request

4: Picture

Metallurgical Wollastonite-Grade A With High Quality

Test item	Test Result
Chemical Property
CaO	43-49(%)
SIO2	50-52(%)
Fe2O3	<0.5(%)
MgO	<2.5(%)
Al2O3	<0.5(%)
Moisture	<0.5(%)
LOI	<5(%)

Q:Conglomerate can not be exploited to destroy: 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:Can wollastonite be certified by REACH?: Wollastonite does not need to be tested, but pre registration and registration are required.

Q:Addition of needle like wollastonite in engineering plastics: Wollastonite is added to engineering plastics, which is called calcium plastic in the industry, because slaked lime is calcium hydroxide and lime is calcium carbonate. In order to increase the strength of the plastics, the calcined wollastonite is added.

Q:What are the specific applications of wollastonite in coatings?: The use of needle like wollastonite 6, insulation, insulation materials, glass products and polymer composite materials, etc., can improve the product strength, hardness, and heat resistance, bending resistance, corrosion resistance.

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.

Q:What's the role of wollastonite in ceramic fiber products?: Wollastonite is a new type of industrial minerals, with its unique physical and chemical properties of mineralogy, and are widely used in ceramics, paint, rubber, metallurgy, casting, welding, abrasive, glass, mineral wool and other industrial sectors. Wollastonite is an ideal raw material for asbestos substitutes.With the continuous development of science and technology, the application research of wollastonite is more and more thorough. The improvement of the grinding method of wollastonite and the obtaining of ultra fine grade wollastonite powder will continue to develop new application fields of wollastonite.

Q:Use of Wollastonite: Wollastonite has a wide range of uses, including construction, ceramics, coatings, paint, rubber and plastics industries.

Q:What are the surface modification methods and processes of wollastonite?: Wollastonite commonly used surface modification agent: at present, the wollastonite commonly used surface modification is the main agent of silane coupling agent, titanate and aluminate coupling agent, surface active agent and methyl methacrylate. 1 silane coupling modified silane coupling modification is one of the commonly used surface modification methods of wollastonite powder. The process of dry modification is generally used, and the amount of coupling agent is related to the required coverage and the specific surface area of the powder. Amino silane treatment of wollastonite, wollastonite content is 0.5% of the weight; methacryloyl oxygen containing silane dosage of wollastonite weight 0.75%, these two kinds of modified products were filled with nylon 6 and polyester instead of 30% glass fiber can significantly improve the mechanical properties of the products.

Q:Excuse me, why is paste tile with stone powder, paste wall tiles with river sand?: Put tiles on the ground, does not appear to be falling, and floor tiles, is to put the thickness of 5 cm above the powder and cement mixture of flat ground, large amount of material, on the ground, it is easy to compaction, cement and powder with cohesive force as long as appropriate, can satisfy the requirement of use, floor tiles posted above in the leveling layer, floor tiles will put bricks before the water wet, and then glued only cement paste, is affixed to the above, it is ensured that the combination of brick and cement, stone powder mixture firmness.

Q:What is the difference between wollastonite powder and talc powder?: The medicine - food grade (YS): medicine tablet, medicine powder (such as Paracetamol Caffeine and Aspirinpowder), sugar powder and traditional Chinese medicine prescriptions, food additives, separant.Talc (3) coating grade (TL): used for white pigment and various water base, oil base, resin, industrial coating, primer, protective paint, etc..

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