Abstract:
A mechanochemical treatment was used for the dechlorination of several
organic pollutants such as chlorobenzene, dichloroaniline, etc., generated
from agricultural wastes. The chlorinated compounds were mixed with two
metal oxide catalysts, CaO and Fe2O3, and subjected to grinding for 45
minutes. The organic products were extracted and characterized by
chromatographic methods including Thin Layer Chromatography and Gas
Chromatography. Dehalogenation was observed in dichloroaniline,
chlorobenzene and others. The dehalogenation efficiency was dependent on
the ratio of CaO and Fe2O3. When the ratio of CaO and Fe2O3 was 6:4 the
maximum efficiency of 70% dehalogenation of chlorobenzene was obtained
in 45 minutes of grinding.
