PROCESS FOR RECOVERING MERCURY AND ACTIVATED CHARCOAL FROM ACTIVATED CHARCOAL/MERCURIC CHLORIDE-TYPE DEACTIVATED CATALYSTS

摘要

The invention relates to a continuous process for recovering mercury chloride and acrylic support from commercial mercury / activated charcoal catalyst catalysts by auto-controlled burning of the activated catalyst in a gas stream containing 0 , 2 ... 5% vol oxygen at combustion temperatures of 420 ... 560 degrees C linear gas velocities of 0.1 ... 50 cm / s solid state residence times in the reactor of 0.1 ... 10 hours at normal pressure when mercuric chloride is recovered as metallic mercury with a yield of 97 ... 99% by weight and the active carbon support in a yield of 80 ... 90% by weight having optimal structure and texture properties for its reuse in the initial catalyst manufacture.