[1. Mazurek, K., Białowicz, K. & Trypuć, M. (2010). Recovery of vanadium, potassium and iron from a spent catalyst using urea solution. Hydrometalurgy, 103, 19–24. DOI: 10.1016/j.hydromet.2010.02.008.10.1016/j.hydromet.2010.02.008]Search in Google Scholar
[2. Grzesiak, P. (2004). Development of sulfuric acid production in Poland. Institute of Plant Protection, Poznan. [in Polish]]Search in Google Scholar
[3. Anioł, S., Korolewicz, T. & Kubala, J. (1997). Investigation concerning the recovery of V2O5 from the spent vanadium catalyst for the production of sulphuric acid, Polish Journal of Applied Chemistry, 41, 25–34.]Search in Google Scholar
[4. Mazurek, K., Białowicz, K., Trypuć, M. (2010). Extraction of vanadium compounds from the used vanadium catalyst. Polish Journal of Chemical Technology, 12(1), 23–28. DOI: 10.2478/v10026-010-0005-2.10.2478/v10026-010-0005-2]Search in Google Scholar
[5. Mazurek, K. & Trypuć, M. (2009). Recovery of the components of the spent vanadium catalyst with sulphuric(VI) acid solutions. Przemysł Chemiczny, 11, 1248–1251.]Search in Google Scholar
[6. Grzesiak, P., Grobela, M., Motała, R. & Mazurek, K. (2004). Sulfuric acid – New opportunities. Institute of Plant Protection, Poznan.]Search in Google Scholar
[7. Ognyanova, A., Ozturk, A., T. De Michelis, I., Ferella, F., Taglieri, G., Akcil, A. & Veglio, F. (2009). Metal extraction from spent sulphuric acid catalyst through alkaline and acid leaching. Hydrometallurgy, 100(1–2), 20–28. DOI: 10.1016/j.hydromet.2009.09.009.10.1016/j.hydromet.2009.09.009]Search in Google Scholar
[8. Navarro, R., Guzman, J., Saucedo, I., Revilla, J., Guibal, E. (2007). Vanadium recovery from oil fly ash by leaching, precipitation and solvent extraction processes, Waste Management, 27(3), 425–438. DOI: 10.1016/j.wasman.2006.02.002.10.1016/j.wasman.2006.02.002]Search in Google Scholar
[9. Williams, W.J. (1979). Handbook of anion determination. Butterworth and Co Ltd., London.]Search in Google Scholar
[10. Medvidović Vukojević, N., Perić, J. & Trgo, M. (2006). Column performance in lead removal from aqueous solutions by fixed bed of natural zeolite – clinoptilolite, Separation and Purification Technology, 49(3), 237–244. DOI: 10.1016/j.seppur.2005.10.005.10.1016/j.seppur.2005.10.005]Search in Google Scholar
[11. Michaels, A.S. (1952). Simplified method of interpreting kinetic data in fluid bed ion exchange. Industry & Engineering Chemistry, 44(8), 1922–1930. DOI: 10.1021/ ie50512a049.10.1021/ie50512a049]Search in Google Scholar
[12. Pawłowski, L., Klepacka, B. & Zaleski, R. (1981). A new ion exchange method for recovering highly concentrated solutions of chromates from plating effiuents, Nuclear and Chemical Waste Management, 2(1), 43–51. DOI: 10.1016/0191-815X(81)90007-3.10.1016/0191-815X(81)90007-3]Search in Google Scholar
[13. Tomaszewska, M., Gryta, M. & Morawski, A.W. (1998). The infiuence of salt in solutions on hydrochloric acid recovery by membrane distillation, Separation and Purification Technology, 14(1–3), 183–188. DOI: 10.1016/ S1383-5866(98)00073-2.]Search in Google Scholar
[14. Tomaszewska, M., Gryta, M. & Morawski, A.W. (2000). Mass transfer of HCl and H2O across the hydrophobic membrane during membrane distillation, Journal of Membrane Science, 166(2), 149–157. DOI: 10.1016/ S0376-7388(99)00263-X.]Search in Google Scholar
[15. Tomaszewska, M. & Mientka, A. (2008). Separation of HCl from the mixture of KCl and HCl using membrane distillation, Polish Journal of Chemical Technology, 10(2), 27–32. DOI: 10.2478/v10026-008-0024-4.10.2478/v10026-008-0024-4]Search in Google Scholar