Separation of rare earth values by liquid/liquid extraction

Details Separation of rare earth values by liquid/liquid extraction Separation of rare earth values by liquid/liquid extraction

1985-04-02

1987-03-03

Carter, H. T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Rare earth metal

423DIG14, 75101BE, C01F 1700

Patent

active

046474382

ABSTRACT:
At least one rare earth value is selectively separated from at least one other rare earth value, by selectively liquid/liquid extracting an aqueous phase comprising the nitrates of said rare earth values with an organic phase which comprises an organic extractant, said organic extractant comprising at least one organophosphinic compound having one of the formulae (I) or (I'): ##STR1## wherein R.sub.1 and R.sub.2, which may be identical or different, are each substituted or unsubstituted alkyl, cycloalkyl, alkoxyalkyl or alkylcycloalkyl radicals, and X is either hydrogen or a cation.

REFERENCES:
patent: 3966569 (1976-06-01), Reinhardt et al.
patent: 4041125 (1977-08-01), Alstad et al.
patent: 4382016 (1983-05-01), Rickelton et al.
patent: 4461748 (1984-07-01), Sabot et al.
Brown et al, "Proceedings of the 7th Rare Earth Research Conference", vol. 1, Oct. 1968, Coronado, Calif.
Chemical Abstracts, vol. 82, 1975, No. 116863f.
Chemical Abstracts, vol. 81, 1974, No. 180681b.

Affiliated with

Also associated with

Rating

Separation of rare earth values by liquid/liquid extraction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separation of rare earth values by liquid/liquid extraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation of rare earth values by liquid/liquid extraction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1015897