Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium
Patent
1989-04-13
1990-07-24
Stoll, Robert L.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iiia metal or beryllium
423DIG14, C01G 1500
Patent
active
049434209
ABSTRACT:
In the process for recovering gallium from aqueous, alkaline solutions by adsorption of the gallium on to bead-polymerized synthetic resins impregnated with 8-hydroxyquinolines and elution thereof with aqueous acids, the synthetic resins employed according to the invention are macroporous polydivinylbenzene or macroporous divinylbenzene copolymers which have been obtained by bead polymerization of divinylbenzene or mixtures of aromatic mono-, di- and/or trivinylbenzenes containing at least 50% by weight of divinylbenzene, in the presence of methyl isobutyl ketone, and which have been loaded with 160-190 g of Kelex 100 per liter of resin; in addition the resin is washed with sodium hydroxide solution after the elution step and before the commencement of each individual service cycle.
REFERENCES:
patent: 4631177 (1986-12-01), Yotsuyanagi
Hoffmann Heiko
Lange Peter M.
Lossmann Gunter
Mitschker Alfred
Smit Cornelius J.
Bayer Aktiengesellschaft
Bos Steven J.
Ingal International Gallium GmbH
Stoll Robert L.
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