| 摘要 |
Metals are removed from waste materials that contain an organic component and a bimetallic salt complex component that comprises complexes having the formula MIMIIXnxAromatic and/or the formula MIMIIXnxMIIOXxAromatic, 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 contacting the waste material with water and sufficient alkali metal hydroxide to form a hydrolysis mixture which has a pH above 5 and which separates into an upper organic phase and a lower aqueous phase. After separation of the phases, there is obtained a slurry of MI oxide, MI hydroxide, and/or MII hydroxide from which the metals can be recovered or which can be discarded in ways that are not damaging to the environment. This process can be used, for example, to remove copper and aluminum from waste materials that contain CuAlCl4xtoluene and/or CuAlCl4xAlOClxtoluene.
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