Title:
PLUG FLOW DISTILLATION TRAY AND METHOD FOR PREPARING ISOPHORON BY LIQUID-PHASE CONDENSATION OF ACETONE
Document Type and Number:
WIPO Patent Application WO/2020/191789
Kind Code:
A1
Abstract:
The present invention provides a plug flow distillation tray and a method for preparing isophorone by liquid-phase condensation of acetone. The plug flow distillation tray provided by the present invention comprises a tray and a plug flow assembly provided on the tray, the plug flow assembly comprising a downcomer, a leveled overflow weir, a light-heavy phase flow dividing element, a liquid receiving tray I and a flow guide element; the downcomer is connected to the tray, and the leveled overflow weir is provided on an inlet of the downcomer; the light-heavy phase flow dividing element is provided in the downcomer and is located below the leveled overflow weir; the liquid receiving tray I is connected to the tray, and is located on a side opposite to the side where the downcomer is connected to the tray; the flow guide element is provided above the junction of the liquid receiving tray I and the tray, and the flow guide element is provided with a plurality of flow guide passages. A pressurized reactive distillation column comprising the plug flow distillation tray of the present invention can be used for performing post-treatment of an IP (isophorone)/alkali liquid system which is easy to foam, so that the liquid phase can be distributed and flow relatively evenly, thereby facilitating the improvement of the reaction effect.
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Inventors:
HE YAN (CN)
LI YUAN (CN)
TIAN BO (CN)
BIAN LULU (CN)
ZHOU RUI (CN)
YUAN MEI (CN)
LI JINMING (CN)
SUN YUANYUAN (CN)
LI YUAN (CN)
TIAN BO (CN)
BIAN LULU (CN)
ZHOU RUI (CN)
YUAN MEI (CN)
LI JINMING (CN)
SUN YUANYUAN (CN)
Application Number:
PCT/CN2019/080512
Publication Date:
October 01, 2020
Filing Date:
March 29, 2019
Export Citation:
Assignee:
WANHUA CHEMICAL GROUP CO LTD (CN)
WANHUA CHEMICAL NINGBO CO LTD (CN)
WANHUA CHEMICAL NINGBO CO LTD (CN)
International Classes:
B01D3/14; C07C45/74; C07C45/82; C07C49/603
Foreign References:
| CN110038317A | 2019-07-23 | |||
| CN102367223A | 2012-03-07 | |||
| CN102531866A | 2012-07-04 | |||
| CN102516051A | 2012-06-27 |
Attorney, Agent or Firm:
SINO-CREATIVITY INTELLECTUAL PROPERTY LAW FIRM (CN)
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