| 摘要 |
Metals are recovered from waste materials that contain an organic component and a bimetallic salt complex component that comprises complexes having the formula MIMIIXn.Aromatic and/or the formula MIMIIXn.MIIOX.Aromatic, wherein MI is a Group I-B metal, MII is a Group III-A metal, X is halogen, n is the sum of the valences of MI and MII, and Aromatic is a monocyclic aromatic hydrocarbon or halogenated aromatic hydrocarbon having 6 to 12 carbon atoms, by hydrolyzing the waste material with dilute hydrochloric acid to form a hydrolysis mixture that separates into an organic phase and an aqueous phase, and, after removing the organic phase, adding to the aqueous phase sufficient aluminum or another reducing metal to precipitate the Group I-B metal. After the precipitated metal has been removed from it, the aqueous solution is treated with sufficient base to precipitate the Group III-A metal hydroxyide, which is recovered from the aqueous solution. This process can be used, for example, to recover copper and aluminum from waste materials that contain CuAlCl4.toluene and/or CuAlCl4.AlOCl.toluene.
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