SOLVENT EXTRACTION WITH SURFACE-ACTIVE AGENTS. I. QUATERNARY AMMONIUM COMPOUNDS

Technical Report · Fri Jan 01 04:00:00 EST 1960

OSTI ID:4060590

Wilson, A M; Churchill, L; Liluk, K; Hovsepian, P

The solvent extraction of metal ions by a quaternary ammonium halide dissolved in 1,2-dichloroethane is described. The extraction was dependent on the ion association of the quaternary "head" with labeled negatively charged chloro complexes of Fe/sup 3+/, Co/sup 2+/, Zn/sup 2+/, and Ti/sup 3+/ o r with the negative oxyanions of Hf/sup 4+/, Ta/sup 5+/, and Mo/sup 6+/ in concentrat ed HCl. The effects of metal ion concentration, contacting time, HCl concentration, and type of quaternary ammonium halide are discussed. Extractions of >50% were possible only if the distribution coefficient, D, of the quaternary compounds themselves was very large. The value of D was found to be dependent on size, shape, and type of organic group attached to the nitrogen. Qualitative agreement of log D vs. molar HCl plots of this solvent extraction system with that of anion exchange chromatography for similar aqueous conditions was found. (auth)

• Research Organization: Wayne State Univ., Detroit
• NSA Number: NSA-15-014353
• OSTI ID: 4060590
• Report Number(s): TID-12351
• Country of Publication: United States
• Language: English

Related Subjects

AMMONIUM COMPOUNDS
CHEMISTRY
CHROMATOGRAPHY
COBALT
COMPLEXES
DETERGENTS
DISTRIBUTION
HAFNIUM
HALIDES
HALOGENATED HYDROCARBONS
HYDROCHLORIC ACID
ION EXCHANGE
IONS
IRON
METALS
MOLYBDENUM
NITROGEN
SOLVENT EXTRACTION
TANTALUM
TITANIUM
ZINC