Journal
POLYMER DEGRADATION AND STABILITY
Volume 94, Issue 7, Pages 1047-1052Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2009.04.004
Keywords
Hydrothermal catalytic oxidation; Dechlorination; Skeletal carbon chain oxidation; PVC; Pd/AC catalyst
Categories
Funding
- National Natural Science Foundation of China [20877058]
- Nanometer Science Foundation of Shanghai, China [0852nm01200]
- Ministry of Science [2008AA06Z329]
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Hydrothermal catalytic oxidation was an effective method in the dechlorination and oxidation of waste poly(vinylidene chloride) (PVC) on Pd/AC catalyst The PVC was decomposed by hydrothermal catalytic oxidation in the system of NaOH at appropriate temperature in our experiments. The degree of dechlorination and oxidation increased with increasing concentration of H2O2, reaching up to 90% and 50% under the condition of 180 degrees C and 0.5 MPa pressure. The main products were Cl- and CO2, and the rest comprises a range of water-soluble organic acids, which were nontoxic and can be treated by biological purification. Therefore, the hydrothermal catalytic oxidation had significant potential in application for treatment of chlorinated waste plastics. (C) 2009 Elsevier Ltd. All rights reserved.
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