Tuyet Ngan, Dang ThiDang ThiTuyet NganKien, Tran TrungTran TrungKienDA-MING WANG2023-03-302023-03-302021-01-0125252518https://scholars.lib.ntu.edu.tw/handle/123456789/629915Supported liquid membrane with strip dispersion (SLMSD) is a promising process for metal recovery from e-waste or waste streams because of many advantages such as the ability to combine extraction and stripping into one single step and thus have non-equilibrium mass transfer characteristics and maximum driving force. This paper investigated the effect of important factors on SLMSD performance to recover indium from etching solution such as: PH of feed solution, extractant (Di-(2-ethylhexyl) phosphoric acid (D2EHPA)) concentration, oxalic acid concentration. It was found that 99.5 % In3+ was removed from feed solution in about 20 minutes with high concentration factor (4.5) under suitable conditions (pH 1; 0.6M Di-(2-ethylhexyl) phosphoric acid (D2EHPA), 2 wt% oxalic acid).D2EHPA | Etching solution | Indium recovery | Liquid membrane | SLMSD[SDGs]SDG9journal article10.15625/2525-2518/59/1/155692-s2.0-85149873418https://api.elsevier.com/content/abstract/scopus_id/85149873418