| Chemical Industry-Halogenation |
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Hydrogen peroxide will readily oxidise hydrogen halides and their acidified salts to liberate the corresponding halogen, with the exception of fluorine.
In-situ generation of halogens can be used for the preparation of a wide range of organic halides or for the recovery of bromine from hydrogen halide waste streams.
The system may be used for olefin halogenation, including epoxide preparation via halohydrins and aromatic halogenation including phenols and amines. Aromatic halogenation may require catalytic activation.
In the case of bromine, the system can be used for the oxidation of alcohols or aromatic side-chains.
Advantage of peroxygen systems
In-situ generation of halogens offers many advantages including:-
- Efficient utilisation of the halogens (HX is continuously reoxidised by H2O2)
- Effluent-free processes – water is the only downstream product
- Elimination of halogen transport and associated handling problems
For a more detailed discussion on this application of peroxygen technology please contact us
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