New synthesis method for 2-acrylamide-2-methyl propanesulfonic acid

The invention provides a new synthesis method for 2-acrylamide-2-methyl propanesulfonic acid. The synthesis method comprises the steps of adding acrylonitrile, dropwise adding sulfuric acid, introducing isobutene and performing thermostatic reaction. According to the invention, synthesis time is sho...

Full description

Saved in:
Bibliographic Details
Main Authors SHAN BAOQING, LI JINLEI
Format Patent
LanguageChinese
English
Published 29.03.2019
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Online AccessGet full text

Cover

More Information
Summary:The invention provides a new synthesis method for 2-acrylamide-2-methyl propanesulfonic acid. The synthesis method comprises the steps of adding acrylonitrile, dropwise adding sulfuric acid, introducing isobutene and performing thermostatic reaction. According to the invention, synthesis time is short; production time is reduced by 100-160 minutes; total synthesis time from the starting of addingto the ending of cooling is 140min; capacity of equipment is increased by 40%-50%; heat generated from a mixing process of sulfuric acid is fully utilized and heat consumption of hot water is reduced;side reaction is reduced and stability of product quality is promoted; the product prepared according to the invention has a small deviation range of liquid chromatogram purity index, a liquid chromatogram purity range of 95.53-96.54%, a small deviation range of melting point, a melting point range of 184.8-186.0 DEG C and chromaticity (platinum-cobalt number) less than or equal to 20. The purityof 2-acrylamide-2-methyl p
Bibliography:Application Number: CN201811553569