| 摘要 |
A method for producing bauxite-based hollow corundum sphere comprises the steps of: using high alumina bauxite as raw material, introducing desilication material, smelting and refining in a three phase alternating current submerged arc furnace or direct current submerged arc furnace, blowing with compressed air and sieving to obtain hollow corundum sphere with particle size of 0.2~5 mm.
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