发明名称 |
A process for recovering dimethyl terephthalate |
摘要 |
A process for recovering dimethyl terephthalate (DMT) comprises the steps of: providing a dimethyl terephthalate stream including dimethyl terephthalate, glycols, and coordination compounds; acidifying the coordination compounds to disassociate the ligands from the metalions; separating the ligands from the metalions; separating the dimethyl terephthalate from the glycols; and recovering the dimethyl terephthalate. Additionally, the process may include the step of basifying the metalions to precipitate the metal; and recovering the metal. |
申请公布号 |
EP0757979(A1) |
申请公布日期 |
1997.02.12 |
申请号 |
EP19960112588 |
申请日期 |
1996.08.03 |
申请人 |
HOECHST CELANESE CORPORATION |
发明人 |
SMITH, BRAD L.;WILKINS, GARY E. |
分类号 |
C07C67/56;C07C67/48;C07C67/60;C07C69/82 |
主分类号 |
C07C67/56 |
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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