![]() ![]() Most of the alumina we produce is smelter-grade, used to make aluminum metal. We are the world’s largest third-party producer. Alumina is a white, crystalline form of aluminum oxide with a sand-like consistency. ![]() Therefore, from a certain point of view, the use of sintered tabular alumina to replace fused alumina in refractory products not only improves the service life of refractory products, reduces the consumption of refractory materials, but also reduces the energy consumption of the entire refractory material. 25 share in the refinery that is part of our Ma’aden joint venture in Saudi Arabia. Therefore greatly reducing the price of tabular alumina. The fused corundum has more open pores and fewer closed pores and is inferior to sintered tabular corundum in terms of corrosion resistance and penetration resistance.ĭue to the rapid development of white tabular alumina in recent years, it has reached a high level in terms of technical indicators and output. In addition, the sintered tabular corundum has a characteristic microstructure and more spherical closed pores, which determine its good thermal shock resistance and spalling resistance. Alumina, synthetically produced aluminum oxide, Al2O3, a white or nearly colourless crystalline substance that is used as a starting material for the smelting of aluminum metal. Therefore, white fused alumina emphasizes strict selection, while sintered tabular corundum does not need to be selected, and the mass distribution is relatively stable and uniform. The impurity content of different positions is different. Thus, the content of iron, carbon, silicon, sodium, and other impurities is much higher than that of sintered tabular corundum.Īt the same time, the cooling speed of the white-fused alumina molten blocks from different positions varies. In the production process of fused corundum, iron and carbon are added as additives. Tabular alumina crystals are produced by heating 2 cm diameter pellets of calcined alumina at temperatures >1925C, just below the melting temperature, until near 100 conversion of the fine, -alumina crystallites into large (40 to >200 m. So impurities such as iron, silicon, and sodium in its products are all trace amounts. Tabular grade alumina is often >99 pure with controlled particle size and shape (Figure 2(a)). White tabular alumina uses high-purity industrial alumina as raw material, and no additives in the production process. But the impurity content of fused alumina is high and the distribution is uneven. Tabular alumina is a pure, raw alumina material. First, the impurity content of sintered tabular alumina is low and the distribution is uniform. is a specialized B2B platform for HVACR international trade, involving 12 categories and over 300 subcategories which includes air conditioning. Tabular alumina is a great choice for high performance refractories. Sintered tabular alumina also has better advantages in terms of performance and indicators than fused alumina. Therefore, both in terms of energy saving and environmental protection, white tabular alumina can be better than white fused alumina. ![]() Except for the emission of carbon dioxide in natural gas, there is no other waste gas and waste residue. However, the production of sintered tabular alumina uses natural gas as the heat source. There are many waste gas and waste residue emissions during the production of fused alumina. Remets White Fused Alumina (also known as White Corundum) is a high purity. White Tabular alumina is a kind of pure sintered corundum, which is sintered and completely shrink without adding any additive, such as MgO or B2O3,with coarse. While the comprehensive energy consumption of white tabular alumina is only 20% to 35% of that of fused alumina. Fused & Tabular Alumina Refractory REMETS Alumina products are high purity. It consumes 2000-3000 kWh of electric power per ton. The production of fused alumina is a high-energy consumption process. Its application in iron and steel industry almost covers the whole process of iron-making and steel-making.White Tabular Alumina vs. It can be used as the main components in aluminum-carbon, aluminum-magnesium-carbon, magnesia-aluminum-carbon, magnesia-spinel and aluminum-chromium refractory bricks, as well as in high aluminum amorphous refractories, and can be widely used in iron and steel, casting, ceramics and other industries. The resistant materials or castables used for production have good thermal shock stability and flexural strength after high temperature treatment.There are 5-10 /3 -6 /1 -3 /0 -1 /0 -0.045mm and other brands. It has high purity, good volume stability, and minimal reburning shrinkage. It has a sheet crystal structure, small pores and more closed pores. Tabular alumina is a kind of pure sintered corundum without adding any additives such as MgO, B2O3 and so on, with low shrinkage.
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