Calcium carbonate We are renowned as a prominent Calcium Carbonate - TopicsExpress



          

Calcium carbonate We are renowned as a prominent Calcium Carbonate Exporter in Egypt. The Calcium Carbonate, which we offer, is used in diverse industrial applications across the globe. Our Calcium Carbonate is free from impurities and thus high in demand in the worldwide markets. Product Details Calcium carbonate rock occurs throughout the world and is readily available. This explains why it has been among the most widely used raw materials for more than 5,000 years. The Ancient Egyptians built their pyramids out of limestone. However, the mining of industrial minerals is possible only in a few deposits world-wide. Extraction is only worthwhile if the purity, whiteness, thickness and homogeneity of the stone is appropriate, and even then intensive treatment is necessary to process top quality natural calcium carbonates (ground calcium carbonate (GCC)). Precipitated calcium carbonate (PCC) is a synthetic calcium carbonate, which in most cases is produced industrially by means of recarbonization. Whether GCC or PCC, calcium carbonate has a wide range of applications. There is a tailor-made product for each application in the paper, plastics, paint industries as well as construction, environment, agriculture, food and pharma, where fineness and particle size distribution are optimally balanced for whatever the special purpose happens to be. • Description: very fine purity calcium carbonate 99 % produced under exacting Specification with quality control • Packing: in 25 kg bags and jumbo bags 1 mt • Application: Paint – Plastics – Rubber – Putty Uses of limestone ● Paper: Over the last 30 years, the use of calcium carbonate has grown significantly as technology in the paper industry has moved from acid to neutral sizing. Today, calcium carbonate is the most widely used mineral in paper-making. GCC and PCC are used both as a filler and a coating pigment, and help produce papers with high whiteness and gloss and good printing properties. ● Plastics: Calcium carbonate is by far the most important mineral for compounding with polymers. By weight it accounts for more than 60% of the filler and reinforcements market. Main applications include plasticized and rigid PVC, unsaturated polyesters, polypropylene and polyethylene. Other important areas of use include rubber, foamed latex carpet-backings, sealants and adhesives. Calcium carbonate is not only a filler added to reduce costs and extend petroleum based resources, many properties of the plastic can be influenced by the use of calcium carbonate. Breathable PE-films for hygiene products and the building industry, for example, can only be produced with the incorporation of filler such as calcium carbonate. ● Coatings: In paints and coatings, calcium carbonate has established itself as the main extender. Fineness and particle-size distribution can contribute to the opacity of coatings. Moreover, calcium carbonate can offer improvements in weather resistance, anti-corrosion and rheological properties, coupled with low abrasiveness, low electrolyte content, and a pH stabilizing effect. In water-based systems calcium carbonate reduces the drying time. ● Environment: As a natural product, calcium carbonate is perfect for environmental protection applications. For example, flue gas desulphurization, drinking water treatment, waste water treatment and forest and lake liming for the neutralization of acid rain, are all growth areas for the use of calcium carbonate. It has a natural buffer-effect and works as a pollution-filter. These properties, likewise, apply to the derivative products. ● Agriculture: Calcium fertilizers were one of the first to be widely used. The Greeks and Romans were aware of their attributes. Their use guarantees an adequate supply of calcium to plants and stabilizes the pH-value of the soil. These characteristics make calcium carbonate an important fertilizer for the agriculture and forestry sectors. Every year, in Europe alone, more than 4.5million tonnes are supplied to this market. Other agricultural-related uses of calcium carbonate include its use as a calcium supplement in animal feed compounds. ● Construction/Architecture: Calcium carbonate has found an innovative application in the concrete market. It is increasingly used as quality filler in concrete applications, such as concrete wares (paving-stones, tubes, sewage-tanks), ready-mixed concrete and prefabricated elements. It improves the concrete density, pre-stability and durability. Its stable color quality increases the aesthetics which make it very suitable for architectural applications. ● Others: Glass, ceramics and blackboard chalk, together with cleaning, dental care and cosmetic products are produced by the wide range of industrial manufacturers who rely on calcium carbonate. As a natural mineral, calcium carbonate has a multitude of characteristics that make it an ideal raw material for widely differing uses. No one calcium carbonate is exactly like another, whichever property is needed a high grade product is there to meet the demand. Diverse requirements such as low iron oxide content for the production of high-quality glasses, the authorization for uses in foodstuffs, good buffering-effect or low abrasion, can be met by an existing grade of calcium carbonate. PACKAGING • 25 , 50 KG / bag • 1 , 1.25 ,1.50 Ton / bag • Bulk by vessel
Posted on: Tue, 11 Jun 2013 17:51:30 +0000

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