Open AccessSolvent extraction of Palladium (II) and effective separation of Palladium(II) and Platinum(IV) with synthetic sulfoxide MSO
Author(s) -
Lu Pan,
Xia Bao,
GeGe Gu
Publication year - 2013
Publication title -
journal of mining and metallurgy. section b, metallurgy/journal of mining and metallurgy. section b, metallurgy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 20
eISSN - 2217-7175
pISSN - 1450-5339
DOI - 10.2298/jmmb120117037p
Subject(s) - palladium , chemistry , platinum , hydrochloric acid , extraction (chemistry) , solvent , stripping (fiber) , ammonia , solvent extraction , sulfoxide , inorganic chemistry , chromatography , nuclear chemistry , organic chemistry , catalysis , materials science , composite material
Extraction performances of Pd(II) and separation behaviors of Pd(II) and Pt(IV) were studied using a synthetic sulfoxide MSO as extractant from hydrochloric acid media. Pd(II) transferring was depended strongly on the MSO and HC1 concentration, phase ratio (O/A), contact time, and Pd(II) concentration in stock solution. By controlling MSO and HC1 concentration, Pd(II) and Pt(IV) could be separated effectively and the highest separation coefficient reached 758 when MSO and HC1 concentration were fixed at 25% (V/V) and 1.5 M, respectively. Pd(II) loaded in organic phase was stripped effectively with a mixed solution containing NH4C1 and ammonia solutes. The percentage stripping of Pd(II) was 95.1% using 3% (ω) NH4C1 and 3 M NH3H2O