Title:
METHOD FOR PRODUCING PROPYLENE CARBONATE OR ETHYLENE CARBONATE
Document Type and Number:
WIPO Patent Application WO/2021/083022
Kind Code:
A1
Abstract:
A method for producing propylene carbonate or ethylene carbonate. The present invention relates to a method for producing a chemical product. The method comprises four reaction units: a reaction unit 1, in which chlorine, water, and calcium carbonate or sodium bicarbonate react to produce a hydrogen chloride-free hypochlorous acid solution and carbon dioxide; a reaction unit 2, in which the hypochlorous acid reacts with propylene or ethylene to produce chloropropanol or chloroethanol; a reaction unit 3, in which the chloropropanol or chloroethanol reacts with calcium hydroxide or sodium hydroxide to produce propylene oxide or ethylene oxide; and a reaction unit 4, in which the carbon dioxide generated in the reaction unit 1 and the propylene oxide or ethylene oxide generated in the reaction unit 3 react in the reaction unit 4 to generate propylene carbonate or ethylene carbonate. The carbon dioxide and propylene oxide or ethylene oxide for synthesizing the propylene carbonate or ethylene carbonate originate from the same device, producing an appropriate raw material route, and achieving good economic efficiency for the product.
Inventors:
WU JIANHUA (CN)
Application Number:
PCT/CN2020/122696
Publication Date:
May 06, 2021
Filing Date:
October 22, 2020
Export Citation:
Assignee:
WU JIANHUA (CN)
International Classes:
C07D317/38; C07D317/36; C07D317/40
Foreign References:
| CN110734422A | 2020-01-31 | |||
| CN1371900A | 2002-10-02 | |||
| CN103980246A | 2014-08-13 | |||
| CN1726203A | 2006-01-25 | |||
| CN104045619A | 2014-09-17 | |||
| CN106957283A | 2017-07-18 | |||
| CN108440453A | 2018-08-24 | |||
| US20080154051A1 | 2008-06-26 | |||
| CN103896882A | 2014-07-02 | |||
| CN106518611A | 2017-03-22 | |||
| CN101628908A | 2010-01-20 |
Attorney, Agent or Firm:
SHENYANG JILIAN PATENT AGENCY CO., LTD. (CN)
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