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Rongsheng Group has been committed to the development of new technologies and new products of refractory materials. It is a nationally recognized high-tech enterprise and a scientific and technological enterprise in Henan Province.
  • Zirconium Silicate

    Zirconium Silicate

    Description of Zirconium Silicate:

    Zirconium silicate is a non-toxic, odorless white or off-white powder. The raw material is natural high-purity zircon sand concentrate, which is then processed through superfine grinding, iron removal, titanium processing, and surface modification treatment.


    Zirconium silicate has a high refractive index of 1.93-2.01 and stable chemical performance. It is a high quality and low price opacifier for opacification. It is widely used in the production of various building ceramics, sanitary ceramics, daily ceramics and first-class handicraft ceramics. Zirconium silicate has been widely used in ceramic production because of its good chemical stability, so it is not affected by the burning atmosphere of ceramic, and can improve the binding performance of ceramic glaze significantly and improve the hardness of ceramic glaze. Zirconium silicate has been further applied in the production of color picture tube, emulsified glass and enamel glaze in the glass industry.

    1. Physical properties

    Specific Gravity


    Melting Point


    Refractive Index


    Mohs Hardness


    Thermal Expansion Coefficient



    White or off white powder


    1. Chemical properties
    Item RS65 RS64.5 RS63.5
    ZrO2+HfO2 65.0 min

    64.5 min

    63.5 min

    Fe2O20. 06 max0. 08 max0. 12 maxTi020.10 max0.12 max0.18 max

    1. Product standard


    Average mesh




    High-grade sanitary porcelain

    High-grade daily-use porcelain

    High-grade crystal brick





    Middle and low class sanitation porcelain,external and internal brick, archaized brick, engobe, body, etc.

                     RS-2.0               D50≤2.0um



    1Building ceramics, sanitary ceramics, daily-use ceramics, special ceramics, etc.High refractive index 1.93-2.01Chemical stabilityIt is an excellent and inexpensive opacifying agent,It is an excellent and inexpensive opacifying agent,In the processing and production of ceramic glaze, the scope of use is wide and the amount of use is large.

    2Refractory materials and products, glass kiln zirconium ramming material, castable, spray coating, etc. (zirconium silicate melting point is very high :2500℃)

    3TV industry color kinescope, glass industry emulsified glass, enamel glaze production

    4Plastics industry: used as fillers requiring stability, heat resistance and chemical erosion resistance



  • High Quality 70% Fire High Alumina Brick For Hot-Blast Stove Gas Burner

    High Quality 70% Fire High Alumina Brick For Ho...

    High Alumina Brick, also known as high alumina fire brick, which is made of bauxite and other raw material with higher alumina content after molding and calcining. High Alumina Brick is a kind of commonly used refractory materials for sale in RS Company, which has  properties of high refractoriness, high strength, acid, good thermal stability and so on. High Alumina Brick is widely used in used in blast furnace, hot blast stove, electric furnace.

  • Wear Resistant Refractory Chrome Corundum Brick

    Wear Resistant Refractory Chrome Corundum Brick

    Chrome corundum brick is made of corundum and fused chromium oxide as the raw material, mixed with micro powder and other additive, and then through mixing, shaping, drying, sintering in the high temperature shuttle kiln. chrome corundum block is widely used for linings of high temperature furnaces or kilns in many industries of steel, building material, non-ferrous smelt, light industry and chemical industry.

  • Excellent fire resistant silica brick refractories from factory sale

    Excellent fire resistant silica brick refractor...

    Silicon fire brick belongs to silicon refractory materials, silica brick is a kind of quality refractory materials products with over 93% SiO2 content. silicate refractory brick has excellent features of good resistance to acid corrosion, great heat conductivity, high refractoriness under load at over 1620℃. and also silica bricks have fratures of strong acid slag erosion resistance, high refractoriness under load, and volume stability at high temperature. silicon rerfractory brik is mainly used in the coke oven, open hearth, glass kiln, ceramic kiln, blast furnace, etc.

  • Fire Resistant Zircon Mullite Brick For Cement Kiln

    Fire Resistant Zircon Mullite Brick For Cement ...

    Zirconia mullite brick is made of high-quality bauxite and imported Australian zircon sand, which is melted in an electric arc furnace at a high temperature and cast. zirconia mulite brick compact structure has the advantages of wear resistance, impact resistance, high temperature resistance, good thermal shock resistance, etc., and zirconium mulite brick is mainly applied to parts that require wear resisting and high temperature resistance, such as sliding bricks of metallurgical steel heating furnaces or adopting tapping platforms The tapping platform of the step type heating furnace of the pan and the liner of the garbage incinerator.

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Latest projects

  • Electricity Industry

    Electricity Industry

    The working environment of CFB boiler is high speed fluidized particles abrasion and impact, chemical reaction and corrosion, frequent thermal exchange
  • Cement Industry

    Cement Industry

    With new dry firing technology as the core, it realizes cement production automation and high efficiency and environmental protection.
  • Non-ferrous smelting

    Non-ferrous smelting

    Silicon Carbide Based Monolithic Refractories include Silicon Carbide Castable, Silicon Carbide Ramming Mix,Silicon Carbide Refractory Mortar,Refractory Mortar For Composite Bricks.
  • Glass-Industry


    Direct-bonded magnesia chrome bricks are made of high-purity or sub-high-purity sintered or fused magnesia and chromium concentrate as raw materials.
  • Chemical Industry

    Chemical Industry

    When the circulating fluidized bed boiler is in operation, the material in the boiler furnace is in a circulating flow state
  • Steel-Industry


    Refractories for Steel-making Furnace:
    Castables and Precast Blocks for EAF Roof
    Castables and Precast Blocks for LF Roof
  • Electricity Industry

    Electricity Industry

  •  Cement Industry

    Cement Industry

  •  Non-ferrous smelting

    Non-ferrous smelting

  • Glass Industry

    Glass Industry

  • Chemical Industry

    Chemical Industry

  • Steel Industry

    Steel Industry

Lastest News

  • GIFA 2023, We Are Coming!

    18 May,23
    As world’s leading refractory supplier for metallurgical casting. Rongsheng Group is committed to the development and manufacture of high-efficiency and energy-saving refractory materials.Own the production line with annual output of 80,000 ...
  • Application of acid-resistant bricks in i...

    06 Apr,23
    Acid-resistant brick is a shaped refractory brick with excellent ability to resist the destructive action of acidic substances in various industrial environments. Due to their unique properties, acid-resistant bricks are used in a wide variety of ...
  • Refractories for Hazardous Waste Incineration Rotary Kiln

    Refractories for Hazardous Waste Incinera...

    03 Apr,23
    Refractory material used in hazardous waste incinerator rotary kiln are calcined with complex and unstable components.The purpose of calcination is to incinerate hazardous waste into slag and to reduce the residue’s heat reduction rate to less tha...

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