Document Type and Number:
Japanese Patent JPS5514050
Kind Code:
B2
Abstract:
A method for controlling the proportion of sodium oxalate in the liquid used in the bayer process for obtaining alumina from bauxite ore, which comprises evaporating a part of the spent liquid recovered from the precipitation step to make it oversaturated with respect to to sodium oxalate, spraying such concentrated liquid over an existing filling in a closed space so that it impinges on such a filling in the form of droplets that move rapidly, the evaporation of the liquid continuing in the evaporation step until the sodium oxalate exceeds a supersaturation critical with reference to the temperature of the droplets in the impact with the filling, recover the sprayed liquid from the closed space and recirculate said liquid to the process circuit. (Machine-translation by Google Translate, not legally binding)
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Application Number:
JP8078776A
Publication Date:
April 14, 1980
Filing Date:
July 07, 1976
Export Citation:
International Classes:
C01F7/473
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