Process for the reductive dehalogenation of halogenated hydrocarbons
AssigneeDCR International Environmental Services B.V.
InventorsFriedrich Bölsing, Achim Habekost
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Abstract
The present invention relates to a process for the reductive dehalogenation of halogenated hydrocarbons. It comprises reacting halogenated hydrocarbons with a reducing metal and a hydrogen donating compound in the presence of an amine. Preferably, the halogenated hydrocarbons are reacted with lithium, potassium, calcium, sodium, magnesium, aluminum, zinc or iron. Depending on the metal, the complete reductive dehalogenation takes place at temperatures ranging from room temperature to 400° C.
Claims26
A process for the reductive dehalogenation of halogenated hydrocarbon, the process comprising the steps of:
- a) contacting said halogenated hydrocarbon with solid particles of a reducing metal in the presence of a hydrogen donating compound and at last one amine,
- wherein, said halogenated hydrocarbon comprises one or more halogenated hydrocarbons, and the at least one amine is present at substoichiometric amounts relative to halogen content;
- b) performing the dehalogenation in either a gas, a liquid, a dry solid, or wet solid, wherein any halogenated hydrocarbon is completely and non-selectively dehalogenated;
- and,
- c) wherein at least a substantial portion of the dehalogenated hydrocarbon parent remains intact.
Dependencies are inferred from the claim text.