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.

Abstract: An apparatus for carrying out chlorinating reactions when extracting metals uch as titanium, zirconium or the like during the extraction of uranium and thorium during the reprocessing of burned-off fuel and/or breeder elements for core reactors and during the purification of coal and graphite. The device comprises a shaft or blast furnace which is heated by a direct flow of current and while being coaxially surrounded by a mantle or shell communicates through a connection or adapter piece with a subsequent condenser of graphite. The device according to the present invention is characterized primarily in that the shell of the furnace and the adapter piece connecting the furnace with the condenser are made of graphite. The shell of the furnace, the condenser and the adapter piece connecting the shell with the condenser are arranged within a steel casing designed in a gas-tight manner.