C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
53/166, 204/66.5
C25C 1/22 (2006.01) C22B 58/00 (2006.01)
Patent
CA 1126683
ABSTRACT OF THE DISCLOSURE A process for recovering gallium from alkali metal aluminate solutions which comprises treating the starting alkali metal aluminate solution with a reagent capable of binding hydroxyl ions so as to reach a concentration of caus- tic alkali of from 0.1 to 10 g/l, whereafter the liquor ob- tained is evaporated to a concentration of the caustic alkali therein of from 30 to 150 g/l. Then the evaporated solution is corrected to obtain a ratio of alkali metal oxide to alumina of above 2Ø The corrected solution is treated with a liquid alloy of gallium containing an element having an oxidizing potential exceeding that of gallium to give a concentrate containing more than 90% of gallium by weight, whereafter gallium of a higher purity grade is electrochemically recover- ed from the resulting concentrate. The process according to the present invention makes it possible to recover gallium from alkali solutions resulting from the treatment of nephel- ines with the production of a 90% gallium concentrate, from which gallium of an increased purity is obtained at relatively low cost. Processing of the concentrate with the production of gallium is simple, it is not accompanied by any additional expenses and requires no additional equipment. Another ad- vantage of the process resides in a more comprehensive utili- zation of low-grade aluminium-containing ores.
293583
Badaliants Khoren A.
Belsky Arkady A.
Butorin Leonid M.
Danilina Anna E.
Eljutin Alexandr V.
Gosudarstvenny Nauchno-Issledovatelsky I. Proektny Institut Redk
Institut Metallurgii I. Obogaschenia Akademii Nauk Kazakhskoi Ss
Swabey Ogilvy Renault
Vsesojuzny Nauchno-Issledovatelsky I. Proektny Institut Aljumini
LandOfFree
Recovery of gallium from alkali metal aluminate by liquid... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Recovery of gallium from alkali metal aluminate by liquid..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery of gallium from alkali metal aluminate by liquid... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-577522