DECOMPOSITION OF GIBBSITE FROM ALUMINATE SOLUTIONS IN LOW-INTENSITY ULTRASONIC FIELDS

Author:

Zarembo D. V.1,Kolesnikov A. A.1,Zarembo V. I.1

Affiliation:

1. St. Petersburg State Institute of Technology (Technical University)

Abstract

The results of laboratory studies of the practical application of the reagentless method of strain-pulse regulation in the industrial method of obtaining gibbsite from aluminate solutions using the Bayer method are presented. During decomposition in regulatory regimes, the size and uniformity of crystals increases, and there is an increase in the rates of dissolution of the seed and crystallization of gibbsite. Quantitative characteristics of the degree of transformations are given and the parameters of gibbsite crystals obtained by the traditional method and in different modes of regulation are determined. The results of X-ray phase analysis and granulometric analysis of images obtained using a scanning electron microscope are described.

Publisher

The Russian Academy of Sciences

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