| 摘要 |
A method for improving the alumina production by treatment of bauxite ore, lixiviating of obtained products, separation of sludge, hydrolysis of the purified solution from sodium aluminate, separation of aluminium, hydroxide, separation of soda (from solution before and after the evaporation), soda caustification. The separated soda is mixed up with aluminium hydroxide or oxide, sintered , and obtained products are used in the alumina production.
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