PROCESS FOR THE COMPLETE VALORISATION OF HIGH MOLECULAR WEIGHT POLYMER WASTE

摘要

High molecular weight polymers, preferably those which do not contain volatiles detectable by standardised analytical methods, are processed, independently of their chemical composition and physical consistency, into a such a form that the raw material contained therein can be completely reused. The polymer wastes are converted in comminuted or granulated form and in a transportable consistency by mixing them with superheated steam and feeding them to a hydrogen plasma jet having a mean mass temperature of at least 1000C and a pressure of 0.05 to 0.5 MPa, so that a mixing of polymer suspension or granules with the hydrogen plasma occurs. The polymer wastes are completely decomposed in this hydrogen plasma and react to form highly endothermic valuable target products, such as acetylene, ethylene, hydrogen, CO, HCN or HCl.