Kinetics of the Leaching Process of an Australian Gibbsitic Bauxite by Hydrochloric Acid
Gibbsitic bauxite from Australia was leached by hydrochloric acid in this work. Analysis on kinetics for the extraction of Al2O3 was quantitatively studied. It was concluded that the hydrochloric acid leaching process of gibbsitic bauxite was controlled by chemical reaction. Moreover, the mechanism...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/5813542 |
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| author | Aichun Zhao Ting-an Zhang Guozhi Lv Wenyan Tian |
| author_facet | Aichun Zhao Ting-an Zhang Guozhi Lv Wenyan Tian |
| author_sort | Aichun Zhao |
| collection | DOAJ |
| description | Gibbsitic bauxite from Australia was leached by hydrochloric acid in this work. Analysis on kinetics for the extraction of Al2O3 was quantitatively studied. It was concluded that the hydrochloric acid leaching process of gibbsitic bauxite was controlled by chemical reaction. Moreover, the mechanism for the dissolution followed the equation, lnk=39.44-1.66×104(1/T), with an apparent activation energy of 137.90 kJ/mol, according to the equation of k=Ae-Ea/RT. This work aims to provide a good theory support for the process control by using a new method of alumina production from the low grade bauxite. |
| format | Article |
| id | doaj-art-1aa733735f104293af4606b994b708fb |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-1aa733735f104293af4606b994b708fb2025-02-03T05:44:57ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/58135425813542Kinetics of the Leaching Process of an Australian Gibbsitic Bauxite by Hydrochloric AcidAichun Zhao0Ting-an Zhang1Guozhi Lv2Wenyan Tian3School of Material Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaKey Laboratory of Ecological Utilization of Multi-Metal Intergrown Ores of Ministry of Education, Northeastern University, Shenyang 110819, ChinaKey Laboratory of Ecological Utilization of Multi-Metal Intergrown Ores of Ministry of Education, Northeastern University, Shenyang 110819, ChinaSchool of Electronic Information Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaGibbsitic bauxite from Australia was leached by hydrochloric acid in this work. Analysis on kinetics for the extraction of Al2O3 was quantitatively studied. It was concluded that the hydrochloric acid leaching process of gibbsitic bauxite was controlled by chemical reaction. Moreover, the mechanism for the dissolution followed the equation, lnk=39.44-1.66×104(1/T), with an apparent activation energy of 137.90 kJ/mol, according to the equation of k=Ae-Ea/RT. This work aims to provide a good theory support for the process control by using a new method of alumina production from the low grade bauxite.http://dx.doi.org/10.1155/2016/5813542 |
| spellingShingle | Aichun Zhao Ting-an Zhang Guozhi Lv Wenyan Tian Kinetics of the Leaching Process of an Australian Gibbsitic Bauxite by Hydrochloric Acid Advances in Materials Science and Engineering |
| title | Kinetics of the Leaching Process of an Australian Gibbsitic Bauxite by Hydrochloric Acid |
| title_full | Kinetics of the Leaching Process of an Australian Gibbsitic Bauxite by Hydrochloric Acid |
| title_fullStr | Kinetics of the Leaching Process of an Australian Gibbsitic Bauxite by Hydrochloric Acid |
| title_full_unstemmed | Kinetics of the Leaching Process of an Australian Gibbsitic Bauxite by Hydrochloric Acid |
| title_short | Kinetics of the Leaching Process of an Australian Gibbsitic Bauxite by Hydrochloric Acid |
| title_sort | kinetics of the leaching process of an australian gibbsitic bauxite by hydrochloric acid |
| url | http://dx.doi.org/10.1155/2016/5813542 |
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