C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/28 (2006.01) C07C 211/11 (2006.01) C22B 23/00 (2006.01) C22B 34/30 (2006.01) C22B 34/36 (2006.01)
Patent
CA 2355853
The invention relates to a method for extracting anions based on metals of the V group to the VII group of the periodic table from the aqueous solution thereof. To this end, compounds or general formula (I) are used as an extracting agent, whereby a maximum of two of the R1, R2, R3 and R4 represent hydrogen atoms, and the remaining alkyl groups or amino alkyl groups which are optionally branched and which are the same or different represent, on average, at least 5 carbon atoms. The inventive method is especially suited for extracting tungsten from molybdenum and from solutions containing tungsten. An additionally preferred method is used for the extractive separation of cobalt and nickel from aqueous solutions containing cobalt ions and nickel ions.
L'invention concerne un procédé qui permet d'extraire de leur solution aqueuse des anions à base de métaux des groupes V à VIII de la classification périodique, en utilisant comme agent d'extraction des composés de formule générale (I). Au maximum deux des résidus R?1¿, R?2¿, R?3¿ et R?4¿ sont des atomes d'hydrogène et les autres représentent des groupes alkyle ou aminoalkyle éventuellement ramifiés, identiques ou différents, renfermant en moyenne au moins 5 atomes de carbone. Les 1,3-diaminopropanes alkyl-substitués permettant une fixation élevée lors de l'extraction de Mo, W, V, Cr, etc. Le procédé convient notamment pour l'extraction de tungstène à partir de solutions contenant du Mo et du W. Un autre procédé avantageux est la séparation par extraction de cobalt et de nickel.
Gutknecht Wilfried
Mathy Wolfgang
Fetherstonhaugh & Co.
H.c. Starck Gmbh & Co. Kg
LandOfFree
Method of extracting anions of metals of groups ivb to viii... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of extracting anions of metals of groups ivb to viii..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of extracting anions of metals of groups ivb to viii... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1516724