Since the method of injecting waste plastics into the Blast Furnace has been developed by Germany at the beginning of the 1990s, it is considered as the optimum approach to solve the problem of waste plastics. But the injecting PVC is still one of the difficult problems of this technology. This paper describes the study on dechlorination of thermal decompsition for PVC under the condition of atmosphere of N_2, heating at certain temperature. The result shows that the dechlorination rate is over 90%, the treated waste plastics can be injected into BF directly.
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