| 摘要 |
<p>A method of recovering polyvinyl chloride from a waste comprising polyvinyl chloride which comprises: the step of removing the insoluble solid matter from a heated mixture of the waste and a solvent in which polyvinyl chloride is soluble; the step of contacting the residual solution with heated water to remove the solvent and thereby precipitate the polyvinyl chloride in the water; and the step of separating the polyvinyl chloride precipitate from the water. Thus, polyvinyl chloride can be continuously recovered from a waste comprising polyvinyl chloride.</p> |
