Process for removing amide impurities in aromatic carboxylic acids
Патенты
| Язык: |
Английский |
| Тип: |
Заявка на патент |
| Номер (11) |
WO 2015053961 A1 |
| Номер заявки (21): |
PCT/US2014/057658 |
| Дата подачи заявки (22): |
26 сент. 2014 г. |
| Дата начала отсчета срока действия патента (24): |
|
| Дата публикации патента (44,45,46): |
|
| Дата публикации заявки (43): |
16 апр. 2015 г. |
| Авторы |
Buchbinder A.
,
Bhattacharyya A.
,
Jarusiripipat T.
,
Shih R.
,
Walenga J.T.
,
Kuznetsova N.I.
|
| Организации |
| 1 |
Honeywell UOP (formely UOP LLC)
|
|
A process for oxidizing alkyl aromatic compounds is described. The process includes contacting the alkyl aromatic compound; an oxidation solvent comprising a carboxylic acid; ammonia or an ammonium compound; a bromine source; a catalyst; and an oxidizing agent in a reaction zone under oxidizing conditions to produce an oxidation product comprising an aromatic carboxylic acid, and an aromatic amide compound; and hydrolyzing the aromatic amide compound with a hydrolyzing agent to form an ammonium compound or ammonia and the aromatic carboxylic acid, wherein the hydrolyzing agent comprises an acid, or water, or both.