| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of recovering plastics which is simple in the treating steps and equipment, and furthermore can recover waste plastics as ground products or pellets with reduced content of chlorine. SOLUTION: In the method of recovering plastics by supplying waste plastics containing chlorine compounds to a thermal decomposition column 10 to effect thermal decomposition and recovering a decomposed gas 10 and a decomposed oil 9 from the top of the column and an extracted oil from the bottom of the column, respectively, the thermal decomposition is carried out at 350-450 deg.C until 20-60 wt.% feed stock is gasified, and then 40-80 wt.% feed stock is recovered as the extracted oil from the bottom of the column, and the extracted oil is cooled and solidified, and then pelletized or pulverized. |
