Title:
ACETONITRILE PURIFICATION PROCESS FOR ULTRA-HIGH PERFORMANCE LIQUID CHROMATOGRAPHY-MASS SPECTROMETER
Document Type and Number:
WIPO Patent Application WO/2021/208023
Kind Code:
A1
Abstract:
The present invention relates to the technical field of acetonitrile refinement, and more specifically, relates to an acetonitrile purification process for an ultra-high performance liquid chromatography-mass spectrometer. An acetonitrile purification process is provided, which can further improve the quality of chromatographically pure acetonitrile such that same reaches the level of UPLC-MS, while also reducing production costs and increasing the yield, wherein the yield thereof can reach greater than 95%; and the provided industrial UPLC-MS grade acetonitrile purification preparation method that combines adsorption, oxidation and rectification has the advantages of simple operation, low costs, high safety, and high efficiency, and can achieve large-scale industrial production.
Inventors:
WEN SHENG (CN)
ZHAO ZHENGCHONG (CN)
GONG CHUNLI (CN)
CHENG FAN (CN)
LIU HAI (CN)
HU FUQIANG (CN)
ZHAO ZHENGCHONG (CN)
GONG CHUNLI (CN)
CHENG FAN (CN)
LIU HAI (CN)
HU FUQIANG (CN)
Application Number:
PCT/CN2020/085151
Publication Date:
October 21, 2021
Filing Date:
April 16, 2020
Export Citation:
Assignee:
FTSCI HUBEI SCIENCE AND TECH CO LTD (CN)
International Classes:
C07C253/34; C07C255/03
Foreign References:
| CN107382776A | 2017-11-24 | |||
| CN102775327A | 2012-11-14 | |||
| CN102432499A | 2012-05-02 | |||
| CN101570498A | 2009-11-04 |
Attorney, Agent or Firm:
SHANGHAI WEICE INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
Download PDF: