Refractory Material/ Zircon Sand and Zircon Flour/ Powder

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Refractory Material/ Zircon Sand and Zircon Flour/ Powder

1.Structure of Zircon Sand and Zircon Powder

Zircon Sand, also known as Zircon, is a Chemical Compound, a Silicate of Zirconium, andits corresponding Chemical Formula is ZrSiO4. It occurs in nature as the Zircon, a Silicate Mineral. Ore is mined from natural deposits and concentrated by various techniques. It is separated from sand by Electrostatic and Electromagnetic methods. It can be made by fusion of SiO2 and ZrO2 in an arc furnace. It is usually colorless, but impurities induce various colorations. It is a fine white mineral powder that is chemically inert and stable.It is insoluble in water, acids, alkali and aqua regia. The tiny, round, solid ball shape of Zircon Sand provides a greater surface area for improved performance and dispersion in its application. It is also sometimes known as Zircon Flour, Zircon Powder, or Zirconium Silicon Oxide. Zircon is the generic name for Zirconium Silicate; the trade names are different (for example, Zircopax, Zircosil). It is used as an ingredient for its functional properties in several Industries.

2.Main Features of Zircon Sand and Zircon Powder

1 Tiny, round, solid ball shape provides greater surface area for improved performance and dispersion in its application

2 High refractory rating, lower specific gravity rating, and higher service temperature produces greater yield

3 With lower bulk density, it offers better air permeability for better performance as a result of its overall physical characteristics


3.Main usage of Zircon Sand and Zircon Powder

  • Ceramic Industries – Wall Tiles , Floor Tiles , Roofing Tiles

  • Sanitary Ware Industries

  • Pottery Industries

  • Porcelain Glazes

  • Frit for Glaze and Enamels

  • Ceramic Colour Industries

  • Admixture for Glass , Opal Glass

  • Picture Tube Industries

  • Foundries , Investment Casting Industries

  • Special Refractories , Castable Refractories

  • Zircon Bricks , Zirconium Oxide Industries

  • Epoxy Resin , Special Paints Industries

4. Zircon Sand and Zircon Powder Images


Refractory Material/ Zircon Sand and Zircon Flour/ Powder

Refractory Material/ Zircon Sand and Zircon Flour/ Powder

Refractory Material/ Zircon Sand and Zircon Flour/ Powder

5. Zircon Sand and Zircon Powder Specification

Specific gravity


Bulk density

170 – 180 lb/ft³ (2700 kg/m³)


7.5 Mohs

Angle of repose


Melting point

4000° F (2200° C)

Thermal stability

no change to 3090° F (1700°C)

Loss on ignition

0.02 – 0.12%

6.FAQ of Zircon Sand and Zircon Powder 

1). Q: Are you a factory or trading company?

A: We are a factory.

2). Q: Where is your factory located? How can I visit there?

A: Our factory is located in China. You are warmly welcomed to visit us!

3). Q: How can I get some samples?

A: Please contact me for samples


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Q:which is better as household fireproof material ?
If it is from the perspective of fire rating inorganic active insulation material for wall thermal, cement foam insulation board, glass beads of insulation movitrified micro bead thermal insulation mortar, rock wool board, glass wool board, ect.. thermal insulation material are Class A fireproofing, polyphenyl board, extruded sheet, phenolic foam board, Polyurethane board, ect..belong to B1 level fireproofing, if it is used for external wall thermal insulation in decorative board, then rock wool board is more often used.
Q:What's the feature of construction external wall fireproof and thermal inuslation matertial?
It has properties of low heat conductivity coefficient, low density, high flexibility, fireproof and waterproof. Its heat conductivity coefficient at normal temperature is 0.018W / (K · m) . The thermal insulation property is three to eight times that of the traditional materials. And it is completely waterproof. [2] Thermal insulation lining has properties of low heat conductivity coefficient, low density, high flexibility, fireproof and waterproof. Light, generally about10-96kg / m3, 20kg / m3 or less is felt, 24-48kg / m3 is middle-hard plate, 48-96kg / m3 is hard plate, wherein 48kg / m³ can be used as ceiling, with softening point being 500 ° C , thermal insulation 300 ° C. It is widely used in the United States, k =0.9. Calcium silicate thermal insulation product is developed in 1970s in China. With high compressive strength, low heat conductivity coefficient, recycle and easily construction, it is widely used in the power system. In China, small workshop production were the most common, then four production lines were gradually introduced from America, including instant fiber forming, dry method punched felt, which are advanced and quality, temperature endurance up to 800-1250 ° C.
Q:What's the difference of fire-resistant material's density, specific gravity and bulk specific gravity?
It usually used to test lightweight refractory. Density can be divided into apparent density (usually called as density) and true density: apparent density includes blow hole inside the sample; Unit weight is using quality to divide volume of sample and specific weight is used to represent liquid.
Q:How to calculate the thickness of choosing refractory? Such as steel ladle should choose what kind of refractory and using what thicknes?
I feel the concrete thickness should depend on the experience and the actual situation. As for the specific method, I also can't say too accurately. If it's ladle, it generally chooses alumina magnesia castable.
Q:What are the classifications of refractory? Which category does steel ladle castable belong to?
In addition, it can be divided into refractory, shapeless refractory material. And it can also be divided into acidic refractory, basic refractory and neutral refractory. If you want to know more, you can ask thme. In fact, every company has different refractory clasifications. There are more clasifications in Huaheng.
Q:What is the classification standard of fireproofing material levels?
the following are the criteria: Currently fire materials levels mainly include:class A : incombustible building material,which almost doesn't burn. class A1: non-combustible, without open fire, class A2, non-combustible, it needs to measure the smoke and be qualified. class B1: nonflammable building material: nonflammable materials have good flame resistance function. when it contacts open fire or is under high temperature, it's difficult to burn and be spreading rapidly, and will stop burn after removing the combustion source. class B1: combustible building materials: combustible materials have good flame resistance function. when it contacts open fire or is put in the air at high temperature, it will immediately burst into flames, and easily result in the spreading of fire, such as wooden column, timber roof truss, timber beam, wooden stairs, etc. class B3: inflammability building materials, without any flame resisting effects, easy to burn, and has large danger of fire disaster. In addition, according to different standards, fire-proofing materials' grade partition is different: DIN4102: A1, A2, B1, B2, B3: EN13501-1 A1, A2, B, C, D, E, F
Q:What are the characteristics of thealuminium oxide refractory?
Alumina refractory are characterized by uniform granularity, mobility, good dispersity. And it has good acid and alkaline slag erosion resistance, high strength, abrasion resistance, high melting point, erosion resistance , anti-flush and excellent thermal shock resistance.
Q:How to apply the alumina powder on refractories?
The most common one in use is the refractory bricks.
Q:What are the differences and connections between softening temperature of the refractory under a fixed load and thermal resistant creep property of the refractory?
The result of refractoriness under load is temperature while the result of creep is percentage of deformation. Refractoriness under load and creep can be tested by an instrument. Refractoriness under load reflects the temperature in which the deformation reaches a certain degree under the condition of load. Creep reflects the deformation refractory has under the condition of constant temperature and load. Both refractoriness under load and creep are important criterion for the operating temperature of refractory.
Q:What refractories are accessible with ease in daily life?
Refractory mortar. Thermal insulation refractory materials include diatomite products, refractory castables, monolithic refractories, carborundum bricks, gun-mix refractories, semi-silica bricks, borides, beryllia, silicide, calcium oxide, high alumina refractory brick, refractory coatings, corundum bricks, fireclay bricks, silicon nitride bonded silicon carbide bricks, chromium hemitrioxide and other refractories. What refractories can be found mostly in the market? Common refractories. Common refractories include silica bricks. The mostly used unshaped refractories include fettling, ramming refractories, castable refractories, plastic refractories, refractory clay, gun-mix refractory, sling refractories, refractory coatings, lightweight refractory castables, stemming etc. The mostly used insulating refractories include diatomite products, asbestos products, insulation panels, etc. The mostly used special refractories include AZS bricks.

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