FIELD: chemistry.
SUBSTANCE: method of recycling polymer wastes is realised in alcohol solvents in supercritical state, in closed-type reactors at temperature and pressure higher than critical values for the starting reaction mixture. The lower alcohol used is methyl alcohol, ethyl alcohol, propyl alcohol or isopropyl alcohol. The process is carried out at pressure 100-270 atm and temperature 200-260°C in an autoclave reactor while stirring.
EFFECT: method enables to carry out depolymerisation and conversion of polymer materials to homogeneous liquid compounds with high degree of conversion over a short contact time.
6 cl, 7 ex
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