Porous BPPO-based membranes modified by multisilicon copolymer for application in diffusion dialysis

The membranes are taken for diffusion dialysis (DD) process to recover HCl from HCl/FeCl2 solution. The dialysis coefficients of HCl (UH) are in the range of 0.020-0.025 m/h at 25 °C and the separation factor (S) can reach up to 45.5. The high permeability and selectivity are due to the unique membrane structure and the presence of different functional groups.