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Key Characteristics of Alumina

Category: Industry News

Time: 2022-08-19

Alumina contains the elements aluminum and oxygen. When bauxite ore undergoes chemical processing to remove oxides of silicon, iron, titanium, and other elements, the resulting product is a highly pure alumina feedstock with an Al₂O₃ content typically exceeding 99%.

Alumina contains the elements aluminum and oxygen. When bauxite ore undergoes chemical processing to remove oxides of silicon, iron, titanium, and other elements, the resulting product is a highly pure alumina feedstock with an Al₂O₃ content typically exceeding 99%. The mineral phase consists of 40% to 76% γ-Al₂O₃ and 24% to 60% α-Al₂O₃. γ-Al₂O₃ can transform into α-Al₂O₃ at temperatures between 950 and 1200°C, accompanied by significant volume contraction.

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