Dissolution kinetics of western Deseret phosphate rocks, Abu Tartur with hydrochloric acid
Joint Authors
Ali, M. M.
Taha, M. H.
Ali, H. F.
Source
Arab Journal of Nuclear Sciences and Applications
Issue
Vol. 46, Issue 5 (31 Dec. 2013), pp.1-16, 16 p.
Publisher
The Egyptian Society of Nuclear Science and Applications
Publication Date
2013-12-31
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Abstract EN
The dissolution kinetics of the Abu-Tartur phosphate rock using dilute hydrochloric acid has been investigated.
The influence of acid concentration, liquid/solid ratio, particle size and temperature was studied to explore the dissolution kinetics of phosphate rock.
It was found that the leaching rate increases with increasing the acid concentration, liquid/solid ratio, temperature and decreases with increasing particle size of the phosphate rock.
The kinetic data showed that the leaching process can be described by a shrinking-core model with apparent activation energy equals to 14.46kJ/mol.
The low activation energy supported the findings that the phosphate ore leaching rate is controlled by the diffusion of reactants and leaching products through a porous ore.
Based on this model and the experimental results, the dissolution rate can be expressed by the following semi-empirical equation;[1 − 3(1 − α)2/3 + 2(1 − α)]= 3 x 10-9C 0.99(L/ S) 2.08ro -2.16e− 1448/ RT t.
The experimental results was tested graphically and statically and found that the above model fits satisfactorily the experimental results.
American Psychological Association (APA)
Ali, H. F.& Ali, M. M.& Taha, M. H.. 2013. Dissolution kinetics of western Deseret phosphate rocks, Abu Tartur with hydrochloric acid. Arab Journal of Nuclear Sciences and Applications،Vol. 46, no. 5, pp.1-16.
https://search.emarefa.net/detail/BIM-761590
Modern Language Association (MLA)
Ali, H. F.…[et al.]. Dissolution kinetics of western Deseret phosphate rocks, Abu Tartur with hydrochloric acid. Arab Journal of Nuclear Sciences and Applications Vol. 46, no. 5 (Dec. 2013), pp.1-16.
https://search.emarefa.net/detail/BIM-761590
American Medical Association (AMA)
Ali, H. F.& Ali, M. M.& Taha, M. H.. Dissolution kinetics of western Deseret phosphate rocks, Abu Tartur with hydrochloric acid. Arab Journal of Nuclear Sciences and Applications. 2013. Vol. 46, no. 5, pp.1-16.
https://search.emarefa.net/detail/BIM-761590
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 16
Record ID
BIM-761590