Extraction of lanthanides from the phosphoric acid production process to gain a purified gypsum and a valuable lanthanide by-product

Hydrometallurgy

Volumn 58, Issue 1, 2000, Pages 51-60

  Koopman, C ^a   Witkamp, G J ^a  

^a DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

CALCIUM COMPOUNDS; GYPSUM; ION EXCHANGE RESINS; PHOSPHORIC ACID; RECRYSTALLIZATION (METALLURGY); SULFURIC ACID;

CALCIUM SULFATE DIHYDRATE; CALCIUM SULFATE HEMIHYDRATE;

HYDROMETALLURGY;

EID: 0034324899     PISSN: 0304386X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0304-386X(00)00127-4     Document Type: Article

References (10)

1. Becker P. Phosphates and Phosphoric Acid; Raw Materials, Technology, and Economics of the Wet Process. 1989;Marcel Dekker, New York.
2. Streat M., Naden D. Ion exchange in uranium extraction. Ion Exchange and Sorption Processes in Hydrometallurgy. 1987;Wiley, UK.
3. E.T.M.J. Martynowicz, Impurity Uptake in Calcium Sulfate during Phosphoric Acid Processing. PhD Thesis, Delft University of Technology, The Netherlands, 1994.
4. de Vreugd C.H., Witkamp G.J., van Rosmalen G.M. Growth of gypsum III. Influence and incorporation of lanthanide and chromium ions. J. Cryst. Growth. 144:1994;70-78.
5. Helfferich F. Ion Exchange. 1995;Dover Publications, USA.
6. Witkamp G.J., Seckler M.M., Bruinsma O.S.L., van Rosmalen G.M. Recrystallization of calcium sulfate in phosphoric acid solutions; batchwise operation. J. Cryst. Growth. 99:1990;1117-1123.
7. Huheey J.E., Keiter E.A., Keiter R.L. Inorganic Chemistry; Principles of Structure and Reactivity. 4th edn. 1993;Harper Collins College Publishers, USA.
8. Huheey J.E., Keiter E.A., Keiter R.L. Inorganic Chemistry; Principles of Structure and Reactivity. 1975;Harper and Row Publishers, UK.
9. Koopman C., Witkamp G.J., van Rosmalen G.M. Removal of heavy metals and lanthanides from industrial phosphoric acid process liquors. Sep. Sci. Technol. 34:1999;2997-3008.
10. F. David, B. Fourest, Hydration numbers of trivalent lanthanide and actinide ions, IPNO-DRE 88-27, Institut de Physique Nucleaire, Université Paris, France, 1988.