发明名称 |
Method for recovering styrene monomer from polystyrene resin by using a catalyst |
摘要 |
The present invention relates to a method for recovering styrene monomers from polystyrene resins by using sulfate as a catalyst. The present invention makes possible to thermally decompose polystyrene resins at comparatively low temperatures, and to reduce facility costs, etc., and also makes possible to recover oil containing less ratio of low molecular weight components and a high content of styrene monomers from vapors obtained through thermal decomposition of polystyrene.
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申请公布号 |
US6380448(B1) |
申请公布日期 |
2002.04.30 |
申请号 |
US20000591103 |
申请日期 |
2000.06.08 |
申请人 |
SAN KAIHATSU KABUSHIKI KAISHA |
发明人 |
SATO TAKUMI;MASUNARI MITSUO |
分类号 |
C08J11/16;B01J27/053;B01J27/055;C07C4/22;C07C15/46;C08F8/50;(IPC1-7):C07C4/24 |
主分类号 |
C08J11/16 |
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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