Estimation of mechanochemical dechlorination rate of poly(vinyl chloride)

Hiroshi Mio, Shu Saeki, Junya Kano, Fumio Saito

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)

Abstract

Poly(vinyl chloride) (PVC) was ground in air with CaO in the presence of quartz powder as a grinding aid by a small-scale planetary ball mill to investigate the relation of the dechlorination rate of PVC with the impact energy of the balls calculated from a computer simulation based on the Discrete Element Method under various conditions. Mechanochemical dechlorination proceeds as the grinding progresses and is improved with an increase in both the mill speed and the amount of balls introduced into the mill. The same trend can be seen in the relation between the specific normal impact energy of the balls and the rotational speed. The relationship between the observed dechlorination rate and the computed normal impact energy of the balls is linear, with a correlation coefficient of 0.965. This relationship can be used to estimate the dechlorination rate of PVC in a large-scale planetary ball mill.

Original languageEnglish
Pages (from-to)1344-1348
Number of pages5
JournalEnvironmental Science and Technology
Volume36
Issue number6
DOIs
Publication statusPublished - 2002 Mar 15

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

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