Micronised Dolomite Powder









micronised-dolomite

Micronised Dolomite Powder is the limestone powder with the composition of CaCO3 and MgCO3 pertaining to 100% in combination, the proportion being varied as per the mining zone. Because of Dolomite Powder useful properties it is additionally being employed as Fillers by paints, steel, detergents and ceramics.We are offering an extremely adaptable vary of mineral powder which is occupied in numerous industries. Dolomite mineral may be a double Calcium Carbonate and metal and it exhibits a powdered structure.

Its use improves properties like whether or notability, reduces shrinkage, fissure development, and water absorption. We use the best quality machines to ensure the quality of our Micronised Dolomite mineral. We have lapidarian a distinct segment jointly of the leading Dolomite Ore makers in the Republic of India ( Southern Asia ). In nature, extended variations within the composition of dolomite about lime and periclase percentages area unit 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 the percentage of MgCO3, it is called 'dolomitic limestone'. With the variations of MgCO3 between five to 100 percent, it's referred to as 'magnesian limestone', and up to five MgCO3 or less it's taken to be the sedimentary rock for all purposes in trade and commercial parlance. Micronised Dolomite mineral typically contains impurities, chiefly silica, alumina, and iron oxide. For industrial functions, the percentage of combined impurities should not go beyond 7% above which, it becomes unsuitable for industrial use. It is then used just for road ballasts, building stones, flooring chips etc.


Specifications:
Mesh : 200 to 1250
Partical Size : 150 to 3 Microns
Brightness : 90 TO 98%
Whiteness : Up to 98%
Spicific Gravity : 2.85
Oil Absorption : 20
Packing : 25/50Kg.
Colour : Super Snow White

Industrial Application

Micronised Dolomite powder is in the main used as refractory, ramming, and fettling material in steel melting look, and as fluxing material in furnace operation in secondary steel and ferromanganese manufacture. To a lesser extent, it's employed in the glass trade particularly in sheet-glass manufacture. It conjointly finds use within the manufacture of the dielectric. 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 five-hundredths of her mineral necessities by this methodology. Dolomite is additionally a decent supply of Mg metal. The magnesium metal is extracted from dolomite by the well-known for-silicon process. Dolomite decomposes completely above 900ºC. The product ensuing from this comparatively low-temperature oxidization is very porous and reactive and is thought as 'calcinated dolomite'. Dolomite powder is sometimes used both in the raw and calcined form as a refractory material for health 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 square measure unbroken within the outer lining as a result of it's lower thermal conduction than mineral.

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