Title:
DEVICE AND METHOD FOR POLYCONDENSATION OF POLYOLS BY MEANS OF CYCLIC COMPOUNDS
Document Type and Number:
WIPO Patent Application WO/2023/138075
Kind Code:
A1
Abstract:
Provided in the present invention is a device for polycondensation of polyols by means of cyclic compounds. The device comprises a reaction kettle, a first micro-interface generator is arranged at the bottom layer in the reaction kettle, and a second micro-interface generator is arranged in the middle layer in the reaction kettle. A first one-way channel used for preventing material backflow is arranged between the first micro-interface generator and the second micro-interface generator, and a second one-way channel is arranged above the second micro-interface generator. A polyol pipeline and a cyclic compound pipeline are arranged on the side edge of the bottom of the reaction kettle. The first micro-interface generator is connected to the cyclic compound pipeline, so as to introduce vaporized cyclic compounds and perform dispersion and crushing, and a polycondensation product pipeline is arranged at the top of the reaction kettle. By using micro-interface enhanced reaction technology, the consumption rate of the cyclic compound gas can be greatly increased, the partial pressure of the cyclic compound in the gas phase is effectively reduced, and the intrinsic safety of the apparatus is greatly improved.
Inventors:
ZHANG ZHIBING (CN)
SUN HAINING (CN)
ZHOU ZHENG (CN)
ZHANG FENG (CN)
LI LEI (CN)
MENG WEIMIN (CN)
YANG GAODONG (CN)
YANG GUOQIANG (CN)
LIU JIA (CN)
SUN HAINING (CN)
ZHOU ZHENG (CN)
ZHANG FENG (CN)
LI LEI (CN)
MENG WEIMIN (CN)
YANG GAODONG (CN)
YANG GUOQIANG (CN)
LIU JIA (CN)
Application Number:
PCT/CN2022/118441
Publication Date:
July 27, 2023
Filing Date:
September 13, 2022
Export Citation:
Assignee:
NANJING INSTITUTE OF MICROINTERFACE TECH CO LTD (CN)
International Classes:
B01J19/00; C08G65/28
Foreign References:
| CN114471403A | 2022-05-13 | |||
| CN113546583A | 2021-10-26 | |||
| CN107303456A | 2017-10-31 | |||
| CN112717846A | 2021-04-30 | |||
| CN111569784A | 2020-08-25 | |||
| CN102430304A | 2012-05-02 | |||
| CN105195063A | 2015-12-30 | |||
| US6830608B1 | 2004-12-14 |
Attorney, Agent or Firm:
BEIJING ZHONGSUO INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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