发明名称 |
PROCESS FOR THE PURIFICATION OF VINYL CHLORIDE POLYMERS (PVC) FROM HEAVY METALS |
摘要 |
<p>A process for the purification of a vinyl chloride polymer containing a compound of a heavy metal by: (a) dissolving the PVC in a solvent; (b) treating the solution with at least one additive capable of adsorbing or of forming a complex with the compound of the heavy metal; (c) centrifuging the treated solution to precipitate the adsorbed or complexed compound of the heavy metal; and (d) separating the precipitate from the PVC solution.</p> |
申请公布号 |
EP1817366(A1) |
申请公布日期 |
2007.08.15 |
申请号 |
EP20050804607 |
申请日期 |
2005.11.21 |
申请人 |
SOLVAY (SOCIETE ANONYME) |
发明人 |
FASSIAU, ERIC;LEPERS, JEAN-CHRISTOPHE;LANNOY, MICHAEL |
分类号 |
C08J11/08 |
主分类号 |
C08J11/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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