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What are the technical conditions for producing brown corundum?


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Brown corundum is made from calcined bauxite in an electric arc furnace after recovery process. Coke and coal are two types of carbon sources commonly used as recovery agents. During the smelting process, excessive impurities (iron oxide, iron oxide, Silicon dioxide and titanium oxide) are restored to metal.

As the demand for high-quality, high-abrasive abrasives and refractory materials has soared, people are seeking brown corundum (BFA) with optimized hardness and usability. To achieve the limit of brown corundum's function, Understand how the chemical composition and impurities can grow or degrade its quality.

Each bauxite has its own unique chemical composition and chemical nature. Therefore, brown corundum producers can combine bauxite from different origins to obtain an optimized furnace charge, which can provide economic and applicable aspects. The advantages of brown corundum clearly characterize these basic chemical and physical personalities. Because the production and consumption of brown corundum has regional personalities, producers and consumers are very familiar with each other in the ultimate application of brown corundum. Quality request.

The regional output of brown corundum has changed in the past two decades. Many brown corundum producers in North America and Europe have either stopped production or merged. At the same time, China has become the world's main supplier of brown corundum, and brown corundum consumption. They also experienced similar mergers. In this process, the quality requirements of special products outside the general brown corundum technique conditions were probably ignored, and the change of suppliers probably caused some defects in product functions.

The technical conditions for producing brown corundum in order to achieve high ultimate product quality require an understanding of the application direction of the product and the production process of brown corundum. The grinding and refractory characteristics of brown corundum are subject to its basic The chemical composition, the content of impurities, and the spread of impurities in its crystal structure spread.

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