Low temperature fluid bed catalytic combustion of...

Details Low temperature fluid bed catalytic combustion of... Low temperature fluid bed catalytic combustion of...

C - Chemistry, Metallurgy

07

C

260/660.2

C07C 17/15 (2006.01) B01J 21/12 (2006.01) C01B 7/01 (2006.01) C07C 17/38 (2006.01)

Patent

CA 1042020

LOW TEMPERATURE FLUID BED CATALYTIC COM- BUSTION OF CHLOROXYDROCARBON WASTE STREAM ABSTRACT OF THE DISCLOSURE There is disclosed an improved method of making chlor- inated derivatives of ethylene wherein chlorine-containing by- products are burned in a fluid bed catalytic combustion reactor to produce primarily a hydrogen halide which is recycled to the chlorinated derivative reaction and the heat of combustion from said reactor is utilized to preheat the materials in said chlor- inated derivative reaction. The fluid bed catalyst is one con- taining 13% to 94% Al2O3 and 87% to 6% SiO2 and having a surface area of at least 10 square meters per gram. The fluid bed catalytic combustion reaction is carried out under superatmos- pheric pressure and at temperatures in the range of about 350°C. to about 550°C. to produce a mixture of gases containing essen- tially hydrogen chloride and carbon oxides, water and inert materials, said mixture being substantially free of elemental chlorine and chlorohydrocarbon compounds. -1-

226042

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