Patent ID: 6271168
Filing Date: 2001-08-07
Classification: B01D,B01J

Abstract:
A composite catalyst for decomposing an organohalogen compound, comprising composite particles comprising:iron compound particles having an average particle size of 0.01 to 2.0 .mu.m, a phosphorus content of not more than 0.02% by weight based on the weight of the particles, a sulfur content of not more than 0.3% by weight based on the weight of the particles, and a sodium content of not more than 0.3% by weight based on the weight of the particles; andan amine compound,said composite catalyst having a catalytic activity capable of decomposing not less than 50% by weight of monochlorobenzene when 50 mg of a mixture comprising iron oxide particles obtained by heat-treating said iron compound particles at a temperature of 300.degree. C. for 60 minutes in air, and the amine compound, is instantaneously contacted with 5.0.times.10.sup.-7 mol of monochlorobenzene at a temperature of 300.degree. C. at a space velocity of 150,000 h.sup.-1 in an inert gas atmosphere using a pulse catalytic reactor.