Catalysts for fixed bed oxychlorination of ethylene to 1.2-dichloroethane
AssigneeSued-Chemie Catalysts Italia S.R.L.
InventorsCarlo ORSENIGO, Francesco CASAGRANDE, Marco CIVATI
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Abstract
Catalyst for the fixed bed oxychlorination of ethylene to 1.2-dichloroethane in form of hollow cylindrical granules having total pore volume from 0.4 to 0.55 ml/g prevailingly formed of micro and mesopores having diameter between 7 and 50 nm, wherein the mesopores constitute the major component, and the macropores having diameter of more than 50 nm up to 10.000 nm being present by 15-35%.
Claims14
Catalyst granules for the oxychlorination of ethylene to 1.2-dichloroethane in form of hollow granules having definite geometrical configuration, comprising copper chlorides supported on alumina granules, said catalyst granules having total pore volume from 0.4 to 0.55 ml/g prevailingly formed of meso and micropores, wherein the mesopores with diameter from 7 to 50 nm constitute the major component, the remaining being formed of macropores having diameter of more than 50 to 10.000 nm, which constitute the 15-35% of the total volume.
Hollow cylindrical granules formed of gamma alumina having total pore volume of 0.55 to 0.75 ml/g prevailingly formed of micro-mesopores having diameter up to 50 nm, wherein the pores having diameter <7nm constitute 15-45% of the micro and mesopore volume.
Dependencies are inferred from the claim text.