FIELD: hydraulic metallurgy, possibly alumina production at conversion of decomposition of aluminate solution.
SUBSTANCE: method comprises steps of hydraulic separation of hydroxide pulp for producing discharged products containing fine fraction of hydroxide and condensed hydroxide containing large fraction; condensation of discharged products; transporting condensed hydroxide after its hydraulic separation to one agitator, then to filtration and transporting hydroxide after condensation of discharged products to other agitator, then to filtration and repulping.
EFFECT: enhanced efficiency of alumina production due to improved sorting of aluminum hydroxide by fraction size.
4 cl, 1 dwg
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Authors
Dates
2005-07-20—Published
2003-07-21—Filed