Solvent extraction of metals with 4-dinitrobenzoyl-2,4-dihydro-5-methyl-2-phenyl-3h-pyrazol-3-one (DMPP)

Journal Article · Sat Jan 01 04:00:00 UTC 1983 · Solvent Extr. Ion Exch.; (United States)

DOI:https://doi.org/10.1080/07366298308918426· OSTI ID:5221634

Arora, H C; Puram, R K; Rao, G N

The mechanism of the extraction of copper(II), nickel(II), cobalt(II) and thorium(IV) from aqueous buffer media with 4-dinitrobenzoyl1-2,4-dihydro-5-methy1-3H-pyrazol-3-one (DMPP) in benzene has been investigated. The values of log K where K refers to the extraction equilibrium Mn/sup +/ + nHL in equilibrium MLn + nH/sup +/ are Cu(II)(+0.3), Co(II)(-6.65), Ni(II)(-5.04) and Th(IV)(+6.1). Solid complexes synthesized have the composition CuL/sub 2/ x 2H/sub 2/O and ThL/sub 4/ respectively (L=anion of the ligand). DMPP seems to be superior to the corresponding 4-benzoyl and 4-nitrobenzoyl derivatives of 2,4-dihydro-5-methyl-2-phenyl1-3H-pyrazol-3-one (MPP) and also better than thenoyltrifluoroacetone, the popularly employed fluorinated ..beta..-diketone in the systems investigated. 2 figures.

• Research Organization: Indian Inst. of Tech., Hauz Khas, India
• OSTI ID: 5221634
• Journal Information: Solvent Extr. Ion Exch.; (United States), Journal Name: Solvent Extr. Ion Exch.; (United States) Vol. 1:4; ISSN SEIED
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ACTINIDE COMPLEXES
ACTINIDES
AQUEOUS SOLUTIONS
AROMATICS
BENZENE
COBALT
COMPLEXES
COPPER
COPPER COMPLEXES
DISPERSIONS
ELEMENTS
EQUILIBRIUM
EXTRACTION
HYDROCARBONS
LIGANDS
METALS
MIXTURES
NICKEL
NICKEL COMPLEXES
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SOLVENTS
THORIUM
THORIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS