发明名称 |
PROCESS FOR THE RECYCLING OF EXPANDED POLYSTYRENE |
摘要 |
The invention relates to an enhanced process for the recycling of expanded polystyrene. Said process essentially comprises the reduction in volume of expanded polystyrene by means of dissolution in a solvent, separation of the insoluble components, selective precipitation of the polystyrene with an anti-solvent, separation, drying and extrusion of the precipitated polystyrene, recovery by distillation and recycling of the solvent. The process is characterized in that the anti-solvent is a butanol selected form n-butanol, iso-butanol or sec-butanol and the solvent is dimethyl carbonate, alone or in a mixture containing up to 25% by weight of butanol. |
申请公布号 |
WO2007009559(A1) |
申请公布日期 |
2007.01.25 |
申请号 |
WO2006EP06247 |
申请日期 |
2006.06.28 |
申请人 |
POLIMERI EUROPA S.P.A.;NOTARI, MARCELLO;RIVETTI, FRANCO;GHIRARDINI, MAURIZIO;LOMBARDINI, SERGIO |
发明人 |
NOTARI, MARCELLO;RIVETTI, FRANCO;GHIRARDINI, MAURIZIO;LOMBARDINI, SERGIO |
分类号 |
C08J11/08;C08L25/06 |
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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