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
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