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 removed 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 .multidot.Aromatic and/or the formula M.sub.I M.sub.II X.sub.n .multidot.M.sub.II OX.multidot.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 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 M.sub.I oxide, M.sub.I hydroxide, and/or M.sub.II 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 CuAlCl.sub.4 .multidot.toluene and/or CuAlCl.sub.4 .multidot.AlOCl.multidot.toluene.