Proceedings of the 2014 International Conference on Mechatronics, Control and Electronic Engineering

The Research on Sodium in Fly Ash Red Mud was Removed by Using Magnesium Salt

Authors
Fei Li, Guanghui Bai, Chao Chen, Huidong Xie
Corresponding Author
Fei Li
Available Online March 2014.
DOI
https://doi.org/10.2991/mce-14.2014.132How to use a DOI?
Keywords
Fly ash red mud; Magnesium salt; Sodium; Cement; Environment protection.
Abstract
Fly ash red mud occupied a great quantity of soils and polluted water source because of it has a very high sodium content. In the present work, the magnesium salts were used to remove sodium from fly ash red mud. The Mg2+ replaced Na+ from the compounds in the fly ash red mud and then the new created compounds dissolved in water to remove Na+. The reaction time, reaction temperature, liquid-solid ratio and magnesium salt/Na2O ration were studied. The optimal reaction conditions are: reaction time is 80 min, reaction temperature is 80 , liquid-solid ratio is 5 and magnesium salt- Na2O ratio is 2 for Mg(NO3)2 and MgSO4, respectively. Mg(NO3)2 have a better property for removing sodium from fly ash red mud than MgSO4. Both of them can achieve the requirement that make the sodium content below 2w%. The treated red can be used as raw materials in cement industry.
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Proceedings
2014 International Conference on Mechatronics, Control and Electronic Engineering (MCE-14)
Part of series
Advances in Intelligent Systems Research
Publication Date
March 2014
ISBN
978-94-62520-31-8
ISSN
1951-6851
DOI
https://doi.org/10.2991/mce-14.2014.132How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Fei Li
AU  - Guanghui Bai
AU  - Chao Chen
AU  - Huidong Xie
PY  - 2014/03
DA  - 2014/03
TI  - The Research on Sodium in Fly Ash Red Mud was Removed by Using Magnesium Salt
BT  - 2014 International Conference on Mechatronics, Control and Electronic Engineering (MCE-14)
PB  - Atlantis Press
SP  - 594
EP  - 597
SN  - 1951-6851
UR  - https://doi.org/10.2991/mce-14.2014.132
DO  - https://doi.org/10.2991/mce-14.2014.132
ID  - Li2014/03
ER  -