| 摘要 |
production of alumina. SUBSTANCE: method includes wet grinding of bauxite, filtering of bauxite and soda pulps, leaching of bauxite, self-evaporation of leached pulp, evaporation of mother liquor obtained after decomposition of aluminate solution, with produced strong solution and soda separation. Strong solution obtained after evaporation of mother liquor is mixed with bauxite settled after filtering of bauxite pulp at pressure higher than atmospheric. Newly formed pulp is directed for autoclave leaching. EFFECT: higher economic efficiency and ecological purity of bauxite processing due to simplified process of leaching and evaporation of mother liquor. 1 dwg
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