Re-extraction of platinum and palladium nitro-complexes extracted from nitrite media by quaternary ammonium salts
This paper studies the recycling of platinum and palladium catalysts by examining the re-extraction from these systems which are formed in the organic phase on extraction by tri-noctylbenzylammonium chloride. The authors compare the data obtained with the behavior of the complexes to be extracted in nonpolar organic solvents. The results are presented for the -extraction of platinum (II) and palladium (II) from the organic phase. It is shown that when palladium nitro-complexes extracted from nitrite media by quaternary ammonium salts are re-extracted by ammonium hydroxide solutions, the nitro group is completely replaced by an ammine group with the formation of the cation (pd(NH/sub 3/)/sub 4/)/sup 2 +/.
- Research Organization:
- M.V. Lomonosov Moscow Institute of Fine Chemical Technology
- OSTI ID:
- 7203011
- Journal Information:
- Dokl. Chem. Technol. (Engl. Transl.); (United States), Journal Name: Dokl. Chem. Technol. (Engl. Transl.); (United States) Vol. 286; ISSN DCHTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
AMINES
AMMONIUM COMPOUNDS
AMMONIUM HYDROXIDES
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
COMPLEXES
EXTRACTION
HYDROGEN COMPOUNDS
HYDROXIDES
KINETICS
NITRO COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SOLVENTS
OXYGEN COMPOUNDS
PALLADIUM COMPLEXES
PLATINUM COMPLEXES
QUATERNARY COMPOUNDS
REACTION KINETICS
RECYCLING
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SOLVENTS
TRANSITION ELEMENT COMPLEXES