| 摘要 |
<p>PCT No. PCT/FR80/00174 Sec. 371 Date Jul. 1, 1981 Sec. 102(e) Date Jul. 1, 1981 PCT Filed Dec. 2, 1980 PCT Pub. No. WO81/01577 PCT Pub. Date Jun. 11, 1981.A process for treating a hydrometallurgical suspension resulting from the acid attack on an ore containing at least one metal element to be put to use, and non-attackable mineral materials, a fraction of which is formed of clays, comprising extracting the useful metal element which has gone into solution in the attack operation, by means of an organic solvent belonging to the group of alkyl phosphates, which is characterized by introducing a condensed mineral phosphate into the ore attack medium, for the purpose of limiting the losses due to adsorption of the organic extraction solvent by the clays. The process applies more particularly to uraniferous, molybdeniferous, vanadiferous and cobaltiferous ores.</p> |
