FIELD: chemistry.
SUBSTANCE: described is a method of processing polytetrafluoroethylene wastes through continuous pyrolysis in the presence of water vapour at high temperature, distinguished by that pyrolysis is carried out in two successive steps, where pyrolysis temperature at the first step is 600-750°C, and 500-600°C at the second step. Temperature at the first step is higher than temperature at the second step.
EFFECT: owing to decomposition in two steps, the method enables simultaneous production of fluoro-monomers and fine-dispersed polytetrafluoroethylene.
2 cl, 4 ex, 1 tbl, 1 dwg
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