Siberian Federal University 
- Issue
- Journal of Siberian Federal University. Engineering & Technologies. 2015 8 (4)
- Authors
- Loginov, Denis A.
- Contact information
- Loginov, Denis A.:National Mineral Resources University of mines 2, 21st line, St. Petersburg, 199106, Russia
- Keywords
- high-silicon bauxite; magnetic separation; decomposition degree; benefication; roasting
- Abstract
Big amount of research has been carried out in relation to high-silicon bauxites in recent years aimed at identifying methods of raw materials benefication, improving the combined sequential Bayersintering method and developing the new method for the hydrometallurgical processing [1-3]. One option of the bauxite chemical benefication is desiliconization by alkaline solution of bauxite subjected to preliminary thermal activation. Experimental data on the leaching of initial and calcined bauxite by recycle solution indicates that the preroasting of high-siderite bauxites enables to use Bayer process with better technological parameters [4]. Roasting improves the condensability of red mud, however, considering that the operation of roasting is associated with large energy costs, alternative technological scheme of low-quality gibbsite bauxites processing from various deposits of Kazakhstan has been proposed and tested in the laboratory and pilot scale
- Pages
- 419-429
- Paper at repository of SibFU
- https://elib.sfu-kras.ru/handle/2311/19652
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).