Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR PREPARING HALOHYDRIN AND EPOXIDE
Document Type and Number:
WIPO Patent Application WO/2017/157254
Kind Code:
A1
Abstract:
Provided is a method for preparing an epoxide by halohydration, the method comprising: (1) halohydration: adding H2O, a halogen element and an olefin compound to a reaction unit for reaction to obtain a halohydrin; (2) saponification: saponificating the halohydrin with an alkali metal hydroxide to obtain an epoxide and an alkali metal halide; (3) performing a bipolar membrane electrodialysis of the alkali metal halide to obtain an alkali metal hydroxide and a halogen hydride. Also provided is a method for preparing an epoxide by halohydration, the method comprising: (1) halohydration: halohydrating a halogen hydride, an H2O2 and an olefin compound to obtain a halohydrin; optionally, (2) saponification: saponificating the halohydrin with an alkali metal hydroxide to obtain an epoxide and an alkali metal halide; optionally, (3) performing a bipolar membrane electrodialysis of the alkali metal halide to obtain an alkali metal hydroxide and a halogen hydride. The method according to the present invention is used to prepare a halohydrin or an epoxide having very high selectivity and yield, thereby greatly reducing the amount of waste water and waste slag discharges.

More Like This:
JPS62123134MANUFACTURE OF PARTIALLY HALOGENATED 1-PROPANOLS
JPH09507215INDUSTRIAL APPLICABILITY A method for preparing an intermediate in antifungal drug synthesis.
JP6856107Method for producing fluoroalkoxide
Inventors:
SHU XINGTIAN (CN)
LIN MIN (CN)
LIAO WEILIN (CN)
Application Number:
PCT/CN2017/076389
Publication Date:
September 21, 2017
Filing Date:
March 13, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
JIANGXI SUKEER NEW MAT CO LTD (CN)
International Classes:
C07C29/64; C02F1/469; C07C31/34; C07C31/36; C07D301/26; C07D303/04; C02F101/12
Foreign References:
CN101735177A2010-06-16
GB1414976A1975-11-26
CN1388106A2003-01-01
CN1149053A1997-05-07
Attorney, Agent or Firm:
BEIJING TROHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: PROCESS FOR PREPARATION OF HALOHYDRIN AND EPOXIDE

Next Patent: LOCAL BREAKOUT-BASED DATA INTERCEPTION METHOD AND DEVICE