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Comparison of membranes for diffusion dialysis of spent pickling solutions
Autoři: Bendová Helena
Rok: 2022
Druh publikace: ostatní - článek ve sborníku
Název zdroje: Proceedings 48th International Conference of the Slovak Society of Chemical Engineering SSCHE 2022 and Membrane Conference PERMEA 2022
Název nakladatele: Slovenská technická univezita v Bratislave
Místo vydání: Bratislava
Strana od-do: nestránkováno
Tituly:
Jazyk Název Abstrakt Klíčová slova
eng Comparison of membranes for diffusion dialysis of spent pickling solutions The continuous diffusion dialysis of model mixture of acids (hydrochloric, nitric and hydrofluoric) and their iron salts whose composition corresponded to those in the real spent pickling solutions was investigated using a counter-current continuous dialyzer. Transport properties of two different anion-exchange membranes (Neosepta-AFN and Fumasep-FAD) were compared. At the constant composition of the solutions, the effect of the volumetric liquid flow rates upon the transport rate was studied. The dialysis process was characterized by the acid recovery yield and the salt rejection coefficient. Both these characteristics were determined from measurements at steady state. Continuous diffusion dialysis, Spent pickling solution, Anion-exchange membrane