Patent ID: 6459012
Filing Date: 2002-10-01
Classification: A62D,B09B,B09C

Abstract:
A process for treating an organohalogen compound-containing soil or ash, comprising:mixing the organohalogen compound-containing soil or ash with an organohalogen compound-decomposition catalyst composed of a composite catalyst comprising an amine compound and iron compound particles, and having an average particle size of 0.01 to 2.0 &mgr;m, a phosphorus content of not more than 0.02% by weight, a sulfur content of not more than 0.3% by weight and a sodium content of not more than 0.3% by weight; and having an apparent density (&rgr;a) of not more than 0.8 g/ml and a catalytic activity capable of decomposing not less than 50% by weight of monochlorobenzene when 50 mg of the composite catalyst is heat-treated at 300Â° C. for 60 minutes in air and then instantaneously contacted with 5.0Ã—10âˆ’7 mol of monochlorobenzene at 300Â° C. at a space velocity of 150,000 hâˆ’1 in an inert gas atmosphere using a pulse catalytic reactor; and heat-treating the obtained mixture at a temperature of 150 to 600Â° C.