Leaching of some lanthanides from phosphogypsum fertilizers by mineral acids
Joint Authors
Ismail, Z. H.
Abu al-Jud, E. M.
Abd al-Hayy, F.
Ali, Ibrahim O.
Jasir, M. S.
Ali, H. F.
Source
Arab Journal of Nuclear Sciences and Applications
Issue
Vol. 48, Issue 2 (30 Apr. 2015), pp.37-50, 14 p.
Publisher
The Egyptian Society of Nuclear Science and Applications
Publication Date
2015-04-30
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Physics
Chemistry
History and Geography
Abstract EN
The phosphate rock contains trace amounts of uranium and lanthanides.
When treating this rock with H2SO4 produces phosphoric acid together with 5 times of its quantity of phosphogypsum (PG) precipitate as a by-product.
The lanthanides in the rock are mostly present in the PG.
After a slight modification of the precipitated PG, some portion of the PG is used as a low-grade phosphate fertilizer (PGF) containing ~ 2% P2O5.
Leaching of different lanthanides from PGF by the mineral acids solutions namely; HCl, H2SO4 and HNO3 is investigated in relation the acid concentration, the mixing time, and acid volume to mass of PGF ratio (L/S) as well as temperature.
It is found that the highest leaching efficiency was obtained using 3.0 M HNO3, L/S = 3.0 and mixing time of 3.0 hr, at room temperature.
The total lanthanides content in the PGF, was found to be about 480 mg/kg.
After three cycle of leaching, the leached out lanthanides from PGF was more than 66 %.
American Psychological Association (APA)
Ismail, Z. H.& Abu al-Jud, E. M.& Abd al-Hayy, F.& Ali, Ibrahim O.& Jasir, M. S.& Ali, H. F.. 2015. Leaching of some lanthanides from phosphogypsum fertilizers by mineral acids. Arab Journal of Nuclear Sciences and Applications،Vol. 48, no. 2, pp.37-50.
https://search.emarefa.net/detail/BIM-724266
Modern Language Association (MLA)
Ismail, Z. H.…[et al.]. Leaching of some lanthanides from phosphogypsum fertilizers by mineral acids. Arab Journal of Nuclear Sciences and Applications Vol. 48, no. 2 (Apr. 2015), pp.37-50.
https://search.emarefa.net/detail/BIM-724266
American Medical Association (AMA)
Ismail, Z. H.& Abu al-Jud, E. M.& Abd al-Hayy, F.& Ali, Ibrahim O.& Jasir, M. S.& Ali, H. F.. Leaching of some lanthanides from phosphogypsum fertilizers by mineral acids. Arab Journal of Nuclear Sciences and Applications. 2015. Vol. 48, no. 2, pp.37-50.
https://search.emarefa.net/detail/BIM-724266
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 49-50
Record ID
BIM-724266