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Removal of Cu 2+ from Water Using Liquid‐Liquid Microchannel Extraction
Author(s) -
Liu Hui,
Dai Shuang,
Li Jun,
Ma Rui,
Cao Yan,
Wang Gang,
Komarneni Sridhar,
Luo Jianhong
Publication year - 2020
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201900168
Subject(s) - chemistry , kerosene , phosphoric acid , liquid–liquid extraction , extraction (chemistry) , mass transfer coefficient , mass transfer , aqueous solution , microchannel , solvent , aqueous two phase system , chromatography , volumetric flow rate , selectivity , analytical chemistry (journal) , entrainment (biomusicology) , partition coefficient , materials science , thermodynamics , organic chemistry , catalysis , philosophy , physics , aesthetics , rhythm , nanotechnology
The very good extraction selectivity of Cu 2+ from water was demonstrated with a new microchannel equipment, by employing di‐(2‐ethylhexyl)phosphoric acid (D2EHPA) as an extractant and kerosene as a solvent. The effects of different experimental parameters on the extraction efficiency E , the volumetric mass transfer coefficient K L a , and the entrainment were experimentally investigated. The results showed that the extraction efficiency increased with increasing temperature, extractant concentration, phase ratio (organic/aqueous), and pH. The total flow rate, phase ratio, and pH were found to have a great effect on the mass transfer, whereas the temperature and the extractant concentration showed little effect.