Research of activating additives influence on ferrous hydrogarnet synthesis

S. V. Budon; A. T. Ibragimov; O. I. Mikhailova; V. V. Medvedev

Vol 196

Pages:

117

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Metallurgy, physical and chemical regularities of technological processes

Research of activating additives influence on ferrous hydrogarnet synthesis

Authors:

S. V. Budon¹

A. T. Ibragimov²

O. I. Mikhailova³

V. V. Medvedev⁴

About authors

1 — «Aluminium of Kazakhstan» JSC
2 — «Aluminium of Kazakhstan» JSC
3 — Research & Discovery Centre of «Aluminium of Kazakhstan» JSC
4 — Alumina production, «ALCORUS» Co Ltd

Date submitted:

2011-08-23

Date accepted:

2011-10-12

Date published:

2012-05-22

Abstract

We have studied the influence of activating ferrous additives on alumina and alkali recovery during the process of red mud lixiviation in autoclaves with the use of high-modulus alkalialuminate solutions and in the presence of lime. The effectiveness of usage of additives, containing sodium and calcium ferrites, during hydrochemical processing of red muds of Bayer process according to hydrogarnet technology, has been shown: increase in alumina recovery by 5-8 %, the possibility to conduct the process at average temperatures 240-260 °С and reduced concentrations of caustic alkali up to 200 g/dm3.

Будон С.В., Ибрагимов А.Т., Михайлова О.И., Медведев В.В. Исследование влияния активизирующих добавок на синтез железистых гидрогранатов // Записки Горного института. 2012. Т. 196 . С. 117.

Budon S.V., Ibragimov A.T., Mikhailova O.I., Medvedev V.V. Research of activating additives influence on ferrous hydrogarnet synthesis // Journal of Mining Institute. 2012. Vol. 196 . p. 117.

References

Гидрогранатовая технология переработки бокситового сырья как современная альтернатива способу Байер – спекание / В.В.Медведев С.Н.Ахмедов, В.М.Сизяков, В.П.Ланкин, А.И.Киселев // Цветные металлы. 2003. № 11.С.58-62.
Сажин В.С. Новые гидрохимические способы комплексной переработки алюмосиликатов и высоко-кремнистых бокситов. М., 1988. 216 с.

Research of activating additives influence on ferrous hydrogarnet synthesis

Abstract

References

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