Selective extraction of iron and aluminum from acidic solutions

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

423 24, 423 49, 423139, 423157, 75101BE, C01F 700, C01G 4900

Patent

active

042332737

ABSTRACT:
A method is provided for extracting at least one of the trivalent ions Fe and Al from an acid solution. The method comprises uniformly mixing the acid solution with a liquid organic extractant comprising an organophosphorus compound and an alkylaromatic sulfonic acid dissolved in a water-immiscible organic solvent, the extractant being selective to the solvent extraction of said trivalent ions under acidic conditions. The molar ratio of the sulfonic acid to the organophosphorus compound is controlled over a range of about 1:4 to 10:1 and the mixing carried out for a time sufficient to effect solvent extraction of said trivalent ions and provide a raffinate substantially impoverished in said trivalent ions and a loaded extractant containing said trivalent ions, following which the loaded extractant is separated from the raffinate.

REFERENCES:
patent: 3586481 (1971-06-01), Hyde et al.
patent: 3875285 (1975-04-01), Nyman et al.
patent: 4032613 (1977-06-01), Shultze et al.
Sato et al, "Proceedings of the International Solvent Extraction Conference, 1971", Paper 98, vol. 1, Soc. of Chemical Industry, London, 1971.
Blake et al, "Proceedings of International Conference on Peaceful Uses of Atomic Energy", vol. 28, 1958, pp. 289-298.
van Dalen et al, "Proceedings of the International Solvent Extraction Conference, 1971", Paper 84, vol. II, Soc. of Chemical Industry, London, 1971.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Selective extraction of iron and aluminum from acidic solutions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selective extraction of iron and aluminum from acidic solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective extraction of iron and aluminum from acidic solutions will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1690726

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.