Distillation: processes – thermolytic – With comminuting
Patent
1997-03-27
1998-10-20
Bhat, Nina
Distillation: processes, thermolytic
With comminuting
201 25, 202 96, 202 99, C10B 5308, C10B 5100
Patent
active
058241930
ABSTRACT:
A method of thermally treating plastics material includes the steps of heating a treatment chamber at least to the melting point of at least a fraction of the plastic material, maintaining an oxygen level in the treatment chamber below combustion level of liquid or gaseous products from the plastic material, feeding the plastic material into the treatment chamber at a rate ensuring a built-up of a film of liquified plastic material on at least a part of the interior of the surface of the treatment chamber, with the liquified plastic material undergoing a transition into the gaseous phase as a result of the heating of the treatment chamber, and exiting of the gaseous phase out of the treatment chamber caused by vaporization pressure of the gaseous phase within the treatment chamber.
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