Title:
METHOD FOR CONTINUOUS PREPARATION OF ACESULFAME INTERMEDIATE
Document Type and Number:
WIPO Patent Application WO/2023/123403
Kind Code:
A1
Abstract:
The present application discloses a method for the continuous preparation of an acesulfame intermediate. Step 1: mixing and reacting sulfamic acid and an amine to obtain a sulfamic acid amine salt; step 2: reacting the sulfamic acid amine salt with diketene to obtain a first material; and step 3: reacting the first material with a sulfur trioxide solution to obtain a second material, where in step 3, a mist formed by the first material and a mist formed by the sulfur trioxide solution mix and undergo a reaction. The present application implements efficient and continuous preparation of an acesulfame intermediate.
Inventors:
WANG CONGCHUN (CN)
CHEN YOGNXU (CN)
ZHOU RUI (CN)
LIU GANG (CN)
CHEN YOGNXU (CN)
ZHOU RUI (CN)
LIU GANG (CN)
Application Number:
PCT/CN2021/143813
Publication Date:
July 06, 2023
Filing Date:
December 31, 2021
Export Citation:
Assignee:
ANHUI JINHE IND CO LTD (CN)
International Classes:
C07D291/06
Foreign References:
| CN86105506A | 1987-04-29 | |||
| CN103613566A | 2014-03-05 | |||
| CN113508110A | 2021-10-15 | |||
| CN113454072A | 2021-09-28 | |||
| CN111511724A | 2020-08-07 |
Attorney, Agent or Firm:
BEIJING LONGAN LAW FIRM (CN)
Download PDF:
Previous Patent: ATOMIZATION CORE AND ATOMIZATION DEVICE
Next Patent: INDUSTRIAL PREPARATION METHOD FOR ACETOACETYL-N-SULFAMATE
Next Patent: INDUSTRIAL PREPARATION METHOD FOR ACETOACETYL-N-SULFAMATE