1. Highly selective extraction of Pd(II) with 5-octyloxymethyl-7-bromo-8-quinolinol from acidic solution
- Author
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Zhanxiang Liu, Ning Liu, Jiali Liao, Shunzhong Luo, Xing-liang Li, Yuanyou Yang, Yang Dong, and Jijun Yang
- Subjects
Aqueous solution ,Health, Toxicology and Mutagenesis ,Inorganic chemistry ,Extraction (chemistry) ,Public Health, Environmental and Occupational Health ,chemistry.chemical_element ,02 engineering and technology ,010403 inorganic & nuclear chemistry ,01 natural sciences ,Pollution ,Endothermic process ,0104 chemical sciences ,Analytical Chemistry ,chemistry.chemical_compound ,020401 chemical engineering ,Nuclear Energy and Engineering ,chemistry ,Thiourea ,Radiology, Nuclear Medicine and imaging ,0204 chemical engineering ,Selectivity ,Energy source ,Spectroscopy ,Stoichiometry ,Palladium - Abstract
A novel extractant, 5-octyloxymethyl-7-bromo-8-quinolinol (HBrO8Q), was employed to extract Pd(II) from low-acidity aqueous solution. The extraction behaviors indicated that HBrO8Q had high extraction efficiency and selectivity for Pd(II) under the experimental conditions, and the stoichiometry of Pd(II) with HBrO8Q was found to be 1:1 by means of mole ratio method and Job’s method. The thermodynamic study indicated that the extraction process was endothermic and spontaneous. Additionally, complete back extraction of palladium could be achieved by using acidic thiourea solution. more...
- Published
- 2017
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