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Calcined Dolomite Powder

Calcined Dolomite Powder
Calcined Dolomite Powder
Product Code : CDP
Product Description

We are a leading processor, exporter and supplier of highly effective Calcined Dolomite Powder. Used in several industries such as four roller mill, rubber, textile, plastic, linoleum, asbestos, ceramics and chemical, this is processed under the guidance of our skilled professionals at our latest processing unit in compliance with the set international standards. The Calcined Dolomite Powder is highly appreciated for high effectiveness, purity and longer reactive life. We offer this powder at highly competitive prices to our clients.

Specifications:

  • Dolomite Powder is limestone powder with composition of CaCO3 and MgCO3 pertaining to 100% in combination, the proportion being varied as per mining zone.

  • Dolomite is also being used as Fillers by detergents, steel, paints and ceramics.

  • We offer a highly versatile range of mineral powder which is used in various industries.

  • Dolomite mineral is a double carbonate of calcium and magnesium and it exhibits a granular structure.

  • It has high natural whiteness and is noted for ease of dispersion.

  • Its use improves properties such as weathering, and reduces shrinkage, fissure development and water absorption.

  • We use the best quality machines to ensure the quality of our Dolomite mineral.

  • We have carved a niche as one of the leading Dolomite Ore Manufacturers in India.
    In nature, considerable variations in the composition of dolomite relating to lime and magnesia percentages are found.

  • When the percentage of CaCO3 increases by 10% or more over the theoretical composition, the dolomite mineral is termed 'calcitic dolomite', 'high-calcium dolomite' or 'lime-dolomite'.

  • With the decrease in percentage of MgCO3, it is called 'dolomitic limestone'.

  • With the variations of MgCO3 between 5 to 10%, it is called 'magnesian limestone', and up to 5% MgCO3 or less, it is taken to be limestone for all purposes in trade and commercial parlance. Dolomite mineral usually contains impurities, chiefly silica, alumina and iron oxide.

  • For commercial purposes, the percentage of combined impurities should not go beyond 7%, above which, it becomes unsuitable for industrial use. It is then used only for road ballasts, building stones, flooring chips, etc.


Industrial Applications:

  • Dolomite powder is chiefly used as refractory, ramming, and fettling material in steel melting shop, and as fluxing material in blast furnace operation in secondary steel and ferromanganese manufacture.

  • To a lesser extent, it is used in the glass industry especially in sheet-glass manufacture. It also finds use in the manufacture of mineral wool. In England, dolomite has become a useful source for the production of magnesite by reacting calcined dolomite with sea-water.

  • The UK is meeting nearly 50% of its magnesite requirements by this method.

  • Dolomite is also a good source of magnesium metal.

  • The magnesium metal is extracted from dolomite by the well-known fero-silicon process. Dolomite decomposes completely above 900oC.

  • The product resulting from this relatively low-temperature calcination is highly porous and reactive, and is known as 'calcinated dolomite'.

  • Dolomite powder is sometimes used both in the raw and calcined form as refractory material for hearth maintenance and for banking door in open hearth furnaces.

  • For most refractory uses, it is desirable to subject the dolomite to a heat treatment at a high temperature of the order of 1700oC, to shrink the material thoroughly and render it less reactive.

  • Dead burnt (D.B.) dolomite is the term generally used for the refractory made by firing dolomite, with or without additives, at high temperature to produce dense, well-shrunk particles. In basic converters the bricks employed are generally of D.B. dolomite and sometimes also of D.B. Magnesite.

  • Dolomite bricks are kept in the outer lining because of its lower thermal conductivity than magnesite. 



S K MINERAL INDUSTRIES
F-221, RIICO Industrial Area, SGC Parbatsar, Nagaur - 341512, Rajasthan, India
Mrs. Shanti Devi (Proprietor)
Mr. Kesha Ram
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