Title:
SYNTHESIS METHOD FOR TETRAOCTYL PYROMELLITATE
Document Type and Number:
WIPO Patent Application WO/2024/050894
Kind Code:
A1
Abstract:
A synthesis method for tetraoctyl pyromellitate. The synthesis method comprises: feeding pyromellitic acid and isooctyl alcohol as raw materials into an esterification reaction kettle, adding a catalyst, i.e. B2O3/ZrO2-Al2O3 thereto, heating same to 220°C, and subjecting same to an esterification reaction; after the esterification reaction is finished, recovering and removing the catalyst by using a circulating press filter; and then subjecting same to dealcoholization, so as to obtain a finished product of tetraoctyl pyromellitate.
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Inventors:
CAO DAN (CN)
LI JIANGHUA (CN)
LI JUN (CN)
GAO JUN (CN)
ZHUANG JIAN (CN)
TANG YING (CN)
WANG FU (CN)
LI JIANGHUA (CN)
LI JUN (CN)
GAO JUN (CN)
ZHUANG JIAN (CN)
TANG YING (CN)
WANG FU (CN)
Application Number:
PCT/CN2022/122122
Publication Date:
March 14, 2024
Filing Date:
September 28, 2022
Export Citation:
Assignee:
JIANGSU ZHENGDAN CHEMICAL IND CO LTD (CN)
International Classes:
C07C69/76; C07C67/08
Foreign References:
| CN1608731A | 2005-04-27 | |||
| CN104529777A | 2015-04-22 | |||
| JP2006218358A | 2006-08-24 | |||
| CN102010332A | 2011-04-13 |
Attorney, Agent or Firm:
NANJING SUKE PATENT AGENT CO., LTD. (CN)
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