Catalytic degradation and dechlorination of PVC-containing mixed plastics via Al–Mg composite oxide catalysts
2004
Abstract A alumina–magnesium composite oxide catalyst (Al–Mg) was synthesized for catalytic degradation of poly
vinyl chloride(PVC) containing polymer mixtures, i.e. polypropylene (PP)/PVC,
low-density polyethylene(LDPE)/PVC, polystyrene (PS)/PVC, and LDPE/PP/PS/PVC. In the catalytic degradations the Al–Mg composite oxide catalyst accelerated the rate of
polymer degradationand lowered the carbon distribution of liquid products. In addition, it showed good effect on the fixation of evolved HCl and greatly decreased the chlorine content in the oil. These results suggested that the Al–Mg composite oxide catalyst can be effectively used for catalytic degradation and
dechlorinationof PVC-containing mixed plastics.
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