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Sintered Bauxite Spheres Process

Sintering process. This method is suitable for treating low grade ores with high silicon content. It requires that the Al2O3SiO2 is 3~5 3.5 or so and the Fe2O3 content is below 10. In modern industry the sintering process is alkali-lime sintering process. The bauxite is mixed with certain soda ash and lime or limestone.

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