Processing of sodium sulphate solutions using the EED method: from a batch toward a continuous process

• Autorzy: Pisarska B. , Mikołajczak W. , Jaroszek H. , Nowak M. , Dylewski R. , Cichy B.

Identyfikatory

DOI

10.1515/pjct-2017-0008

• Języki publikacji: EN

Abstrakty

EN

In a batch electro-electrodialysis (EED), sodium sulphate solution with an initial concentration of 80.90 g/dm³  was converted to obtain solutions of sodium hydroxide (13.96%) and sulphuric acid (10.15%) and a dialysate (3.23 g/dm³ of sulphate ions). Changes in the EED process′ performance (temperature, cell voltage, concentrations, energy consumption) with an increasing conversion degree of salt are presented. Based on the presented results of the batch experiment, conditions necessary to run the process continuously are discussed. A single pass method is inapplicable due to excessive heating of the electro-electrodialyser. A cascade method enables interstage cooling of the solutions, providing temperatures suitable for ion-exchange membranes to work. Increasing the number of stages in the cascade reduces both the number of electro-electrodialysers and specific electric energy consumption, providing the same production capacity. However, this increases the investment cost.

Słowa kluczowe

EN

electro-electrodialysis; waste processing; process conditions

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2017
• Tom: Vol. 19, nr 1
• Strony: 54--58
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Pisarska B.

• New Chemical Syntheses Institute, Inorganic Chemistry Division „IChN” in Gliwice, Sowińskiego 11, 44-101 Gliwice, Poland

autor

Mikołajczak W.

• New Chemical Syntheses Institute, Inorganic Chemistry Division „IChN” in Gliwice, Sowińskiego 11, 44-101 Gliwice, Poland

autor

Jaroszek H.

• New Chemical Syntheses Institute, Inorganic Chemistry Division „IChN” in Gliwice, Sowińskiego 11, 44-101 Gliwice, Poland

autor

Nowak M.

• New Chemical Syntheses Institute, Inorganic Chemistry Division „IChN” in Gliwice, Sowińskiego 11, 44-101 Gliwice, Poland

autor

Dylewski R.

• New Chemical Syntheses Institute, Inorganic Chemistry Division „IChN” in Gliwice, Sowińskiego 11, 44-101 Gliwice, Poland

autor

Cichy B.

• New Chemical Syntheses Institute, Inorganic Chemistry Division „IChN” in Gliwice, Sowińskiego 11, 44-101 Gliwice, Poland

Bibliografia

• 1. Morachevskii, A.G. (1997). New lines in lead battery scrap recycling. Russ. J. Appl. Chem. 70(1), 1-12.
• 2. Pisarska, B., Mikołajczak, W., Jaroszek, H. & Nowak, M. (2016). Processing of sodium sulfate solutions by electro-electrodialysis method. Przem. Chem. 95(6), 1167-1170. (in Polish) DOI: 10.15199/62.2016.6.17.
• 3. Jörissen, J. & Simmrock, K.H. (1990). The behaviour of ion exchange membranes in electrolysis and electrodialysis of sodium sulphate. J. Appl. Electrochem. 21, 869-876. DOI: 10.1007/BF01042453.
• 4. Cherif, A.T. & Gavach, C. (1989). Electrotransport of sulfuric acid by electro-electrodialysis. J. Electroanal. Chem. 265, 143-157. DOI: 10.1016/0022-0728(89)80185-8.
• 5. Mani, K.N., Chlanda, F.P. & Byszewski, C.H. (1988). Aquatech Membrane Technology for Recovery of Acid/ Base Values from Salt Streams. Desalination 68, 149-166. DOI: 10.1016/0011-9164(88)80051-1.
• 6. Dylewski, R. (2000). Electrochemical methods in environmental engineering. Gliwice, Poland: Wydawnictwo Politechniki Śląskiej. (in Polish).
• 7. Pisarska, B., Mikołajczak, W., Jaroszek, H., Nowak, M. & Dylewski R. (2016). Effect of electro-electrodialysis on sodium sulfate conversion. Przem. Chem. 95(7), 1322-1324. (in Polish) DOI:10.15199/62.2016.7.8.
• 8. Paleologou, M., Thbault, A., Wong, P.Y., Thompson, R. & Berry, R.M. (1997). Enhancement of the current efficiency for sodium hydroxide production from sodium sulphate in a two-compartment bipolar membrane electrodialysis system. Sep. Purif. Technol. 11, 159-171. DOI: 10.1016/S1383-5866(97)00018-X.
• 9. Lide, D.R., ed. (2004). CRC Handbook of Chemistry and Physics (85th ed.). Boca Raton, USA: CRC Press.
• 10. Stopa, H., Baran, P., Gruszka, M., Markowicz, P., Pisarska, B., Dylewski, R., Cichy, B., Nowak, M., Jaroszek, H. & Mikołajczak, W. (2016). Polish Pat. appl. No. P.416 008.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).