Process for desilication of aluminate solution

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium

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423121, 423122, 423124, C01F 702

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044552840

ABSTRACT:
The present invention relates to the production of alumina and, more specifically, to a process for desilication of aluminate solutions.
The process of desilication according to the present invention comprises treatment of the aluminate solution first with a calcium-containing reagent "a" which is a product of the reaction of desilication of the aluminate solution; reagent "a" contains mainly calcium hydrogarnet of the formula:

REFERENCES:
patent: 938432 (1909-10-01), Peffer
patent: 2442266 (1948-05-01), Wall
I. Z. Pevzner, N. A. Makarov "Disilication of Aluminate Solutions", Metallugia, Moscow, 1974.
A. I. Liner "Aluminia Manufacture", State Scientific/Technical Publishing House for Ferrous and Non-Ferrous Metallurgy, Moscow, 1961.
English Language Translation of Letters Patent of Federal Republic of Germany, No. 752,739, 1943.

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