The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 1979
Filed:
Jul. 11, 1978
Donald A Keyworth, Houston, TX (US);
Jerome R Sudduth, Pasadena, TX (US);
Tenneco Chemicals, Inc., Saddle Brook, NJ (US);
Abstract
Metals are recovered from waste materials that contain an organic component and a bimetallic salt complex component that comprises complexes having the formula M.sub.I M.sub.II X.sub.n.Aromatic and/or the formula M.sub.I M.sub.II X.sub.n.M.sub.II OX.Aromatic, wherein M.sub.I is a Group I-B metal, M.sub.II is a Group III-A metal, X is halogen, n is the sum of the valences of M.sub.I and M.sub.II, 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 CuAlCl.sub.4.toluene and/or CuAlCl.sub.4.AlOCl.toluene.