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Title:
METHOD FOR PRODUCING ETHYLENE AMINES
Document Type and Number:
Japanese Patent JP2015093872
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method capable of producing ethylene amines with further improved production efficiency by reducing energy consumption.SOLUTION: There is provided a method for producing ethylene amines which comprises: a step of obtaining a product containing ethylene amines and ammonium chloride by ammonolysis of an ethylene chloride; a step of precipitating sodium chloride particles by neutralization reaction of the ammonium chloride by adding a sodium hydroxide aqueous solution having a concentration of 30 to 80 wt.% (W/V) to the product; a step of recovering the precipitated sodium chloride particles by solid-liquid separation; and a step of purifying the liquid recovered by the solid-liquid separation to recover ethylene amines.

Inventors:
WOO WAN JONG
LEE SANG WOOK
PARK YOU SUN
PARK HYE RIM
SEO SANG HO
Application Number:
JP2014230567A
Publication Date:
May 18, 2015
Filing Date:
November 13, 2014
Export Citation:
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Assignee:
HANWHA CHEMICAL CORP
International Classes:
C07C209/08; C07C209/84; C07C209/86; C07C211/10
Domestic Patent References:
JPS5119706A1976-02-17
JPS462965B1
JPS395462B1
JPS468769B1
JP2015517519A2015-06-22
JP2012504610A2012-02-23
JPS387962B1
JP2009511540A2009-03-19
Foreign References:
GB1510538A1978-05-10
WO2013172675A12013-11-21
US20100087681A12010-04-08
US3183269A1965-05-11
Other References:
15710の化学商品, JPN7015003650, 26 January 2010 (2010-01-26), pages 437 - 438, ISSN: 0003228059
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro



 
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