| 摘要 |
<p>PCT No. PCT/FR88/00574 Sec. 371 Date Jul. 24, 1989 Sec. 102(e) Date Jul. 24, 1989 PCT Filed Nov. 24, 1988 PCT Pub. No. WO89/04878 PCT Pub. Date Jun. 1, 1989.A process of hydrometallurgical treatment of a solution of materials containing gallium and at least one metalloid from Group V of the periodic table of the elements which comprises adding hydrochloric acid and an alkali metal chloride or an alkaline earth metal chloride to said solution to form gallium chloride so that the concentration of chloride ions, not counting those bonded to gallium, is in a range of from 4 to 10 N and the acidity of said solution is in a range of from 1 to about 5 N. Then placing the adjusted solution in contact with an organic phase comprising at least one neutral pentavalent phosphorus compound having a phosphorus-oxygen double bond, wherein the gallium chloride is extracted by the organic phase and reextracting the gallium from the organic phase.</p> |
