发明名称 |
Process for the production of acetic acid |
摘要 |
A process for the reduction and/or removal of permanganate reducing compounds formed by the carbonylation of methanol in the presence of a Group VIII metal carbonylation catalyst to produce acetic acid is disclosed. More specifically, a process for reducing and/or removing permanganate reducing compounds or their precursors from intermediate streams during the formation of acetic acid by said carbonylation processes is disclosed. In particular, a process in which a low boiling overhead vapor stream from a light ends column is subjected to a single distillation to obtain an overhead that is subjected to an extraction to selectively remove and/or reduce PRCs from the process is disclosed. |
申请公布号 |
ZA200709028(B) |
申请公布日期 |
2009.01.28 |
申请号 |
ZA20070009028 |
申请日期 |
2006.04.06 |
申请人 |
CELANESE INTERNATIONAL CORPORATION |
发明人 |
ZINOBILE, RAYMOND J.;SCATES, MARK O.;MAKELKI, JONATHAN A.;SALADO, MANUEL |
分类号 |
C07C |
主分类号 |
C07C |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|