Published May 27, 1988
| Version v1
Patent
Selective extraction process for transition metals from acid solutions by systems of nitrogenous polydente ligands and ion exchangers
Description
The transition metal Ni, Co, Rh or Ru is complexed with a ligand comprising, at least, 2 electron donor nitrogen atoms (bipyridines, tripyridines, phenantrolines, triazines or substituted derivatives). The complex is extracted by an organic phase comprising an extractant exchanging cations (dialkylsulfonaphtalene acid or alkylphosphoric acid)
Availability note (English)
Available from Institut National de la Propriete Industrielle, Paris (France).Abstract (French)
On complexe le metal de transition Ni, Co, Rh ou Ru par un ligand azote polydente comprenant au moins deux atomes d'azote donneurs d'electrons choisi parmi les bipyridines, les tripyridines, les phenanthrolines, les triazines, et leurs derives substitues. On extrait le complexe ainsi forme dans une phase organique comprenant un extractant echangeur cationique (acide dialkylsulfonaphtalene ou acide alkylphosphorique)Additional details
Additional titles
- Original title (French)
- Procede d'extraction selective de metaux de transition a partir de solutions acides par des systemes de ligands azotes polydentes et d'echangeurs cationiques
Publishing Information
- Imprint Pagination
- 26 p.
- IPC:
- Int. Cl. B01d11/04; C01g3/00; C01g45/00; C01g49/00; C01g51/00; C01g53/00; C01g55/00.
- IPC
- Int. Cl. B01d11/04; C01g3/00; C01g45/00; C01g49/00; C01g51/00; C01g53/00; C01g55/00.
- Patent number
- FR patent document 2607021/A/
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 20007520
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- CHELATES; DISTRIBUTION FUNCTIONS; LIGANDS; RUTHENIUM; SOLVENT EXTRACTION
- Descriptors DEC
- COMPLEXES; ELEMENTS; METALS; PLATINUM METALS; SEPARATION PROCESSES; TRANSITION ELEMENTS
Optional Information
- Secondary number(s)
- FR patent application 8616268.