Extraction of zinc(II) in hollow fiber modules

• Autorzy: Tórz M. , Alejski K. , Szymanowski J.
• Języki publikacji: EN

Abstrakty

EN

The recovery of zinc(II) from model hydrochloric acid solutions with tributyl phosphate in hollow fiber modules was studied. The experimental results suggested that zinc(II) can be effectively removed from investigated solutions. A mass transfer model of the process was formulated and verified. The model satisfactorily reflected the experimental profiles of zinc concentration. Recovery of zinc(II) was different depending on TBP concentrations. In case of low TBP concentration (40%) the kinetics of the process was limited by the diffusion of species within the membrane pores. Maximum achievable flux was obtained. Thus, the flowrates did not influence the mass transfer coefficient. The increasing of both feed and organic phase flowrates improved the mass transfer when 80% TBP was used. The flux of zinc(II) could be still increased within the flowrates' region covered in the work.

Słowa kluczowe

EN

hollow fiber module; zinc(II) extraction; tributyl phosphate; hydrochloric acid; modeling

PL

modelowy roztwór kwasu solnego; ekstrakcja cynku(II); fosforan tributylu; kwas solny; modelowanie

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2003
• Tom: Vol. 5, nr 4
• Strony: 65--66
• Opis fizyczny: Bibliogr. 4 poz., rys., tab.

Twórcy

autor

Tórz M.

autor

Alejski K.

autor

Szymanowski J.

• Institute of Chemical Technology and Engineering, Poznań University of Technology, pl. Skłodowskiej-Curie 2, 60-965 Poznań, Poland, fax: [phone],

Bibliografia

• (1) Cierpiszewski R., Miesiąc L, Regel-Rosocka M., Sastre A. M., Szymanowski J., Removal of Zinc(II) from Spent Hydrochloric Acid Solutions from Zinc Hot Galvanizing Plants, Ind. Chem. Eng. Res., 2002, 41, 598.
• (2) Regel M., Sastre A. M., Szymanowski J., Recovery of Zinc(II) from HCI Spent Piekling Solutions by Solvent Extraction, Environ. Sci. Technol., 2001, 35, 630.
• (3) De Gyves J., De San Miguel E. R., Metal Ions Separations by Supported Liquid Membranes, Ind. Eng. Chem. Res., 1999, 38, 2182.
• (4) Escalante H., Alonso A. L, Ortiz L, Irabien A., ModelIing of Liquid-Liquid Non-dispersive Extraction Processes in Hollow Fiber Modules, Liquid-Liquid Two Phase Flow and Transport Phenomena, Mam D. M. (Ed.), Begell House Inc., New York, 1998.