FIELD: alumina production. SUBSTANCE: method for leaching bauxite involves pumping bauxite pulp by piston pump through steam-pulp and pulp-pulp heaters, autoclaves and self-evaporators with regenerative heating pulp with self-evaporation pulp and heat of leached pulp and with live steam in autoclaves. Washing out heaters is carried out for two stages: firstly with hot water pumping it by piston pump through heaters at switching off autoclaves and then with steam-condensate mixture in switching on autoclaves for working. Proposed method provides carrying out the more effective leaching bauxite and reducing consumption of live steam from the central heating and power plant. Invention can be used for autoclave leaching bauxite. EFFECT: improved and enhanced method. 5 cl, 1 dwg
Title | Year | Author | Number |
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METHOD OF BAUXITE LIXIVIATION | 1993 |
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AUTOCLAVE INSTALLATION FOR LEACHING BAUXITES | 1994 |
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METHOD FOR HEATING BAUXITE PULP | 1998 |
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BAUXITE LEACHING PROCESS | 2003 |
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Authors
Dates
2003-11-27—Published
2002-01-11—Filed