Title:
PROCESS AND EQUIPMENT FOR THE PRODUCTION OF MONO(LOWER ALKYL)MONOALKANOLAMINES
Document Type and Number:
WIPO Patent Application WO/2008/068927
Kind Code:
A1
Abstract:
Equipment for the production of amines which is constituted of a reactor (11) for conducting the reaction of a mono(lower alkyl)amine (raw material (I)) with an alkylene oxide (raw material (II)), a distillation column (14) for separating and recovering unreacted raw materials by distillation from the product (12) formed in the reactor (11) which product contains unreacted raw materials, a nonaqueous distillation column (16) for removing water and a light component(17) by distillation from the reaction product (13) obtained above which is free from unreacted raw materials (15), and a purification distillation column (18) for separating the reaction product (13a) after the removal of water and the light component (17) into an objective reaction product (mono(lower alkyl)monoalkanolamine) (19) and a residue (dimer, i.e., mono(lower alkyl)dialkanolamine) (20) by distillation. A mono(lower alkyl)monoalkanolamine can be efficiently produced by the water-catalyzed method in a subcritical state by the use of the equipment and by controlling the temperature, pressure, water concentration and molar ratio between raw materials to fall within prescribed ranges of 50 to 250°C, 0.1 to 10MPa, 5 to 20% by weight, and 0.05 to 0.35, respectively.
Inventors:
TACHIBANA SHINYA
YOSHIYAMA RYUJI
OISHI TSUYOSHI
SAKURAI MIKIYA
ISHIDA KAZUO
TSUJIUCHI TATSUYA
MITA HIDEHISA
ARAKI RYOSUKE
SAITO KENJI (JP)
YOSHIYAMA RYUJI
OISHI TSUYOSHI
SAKURAI MIKIYA
ISHIDA KAZUO
TSUJIUCHI TATSUYA
MITA HIDEHISA
ARAKI RYOSUKE
SAITO KENJI (JP)
Application Number:
PCT/JP2007/065354
Publication Date:
June 12, 2008
Filing Date:
August 06, 2007
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
NIPPON NYUKAZAI CO LTD (JP)
TACHIBANA SHINYA
YOSHIYAMA RYUJI
OISHI TSUYOSHI
SAKURAI MIKIYA
ISHIDA KAZUO
TSUJIUCHI TATSUYA
MITA HIDEHISA
ARAKI RYOSUKE
SAITO KENJI (JP)
NIPPON NYUKAZAI CO LTD (JP)
TACHIBANA SHINYA
YOSHIYAMA RYUJI
OISHI TSUYOSHI
SAKURAI MIKIYA
ISHIDA KAZUO
TSUJIUCHI TATSUYA
MITA HIDEHISA
ARAKI RYOSUKE
SAITO KENJI (JP)
International Classes:
C07C213/10; C07C213/04; C07C215/08
Foreign References:
| JP2000204065A | 2000-07-25 | |||
| JPH0733718A | 1995-02-03 | |||
| JPS537907A | 1978-01-24 | |||
| JP2004275933A | 2004-10-07 | |||
| JP2007217344A | 2007-08-30 |
Attorney, Agent or Firm:
SAKAI, Hiroaki (Kasumigaseki Building2-5, Kasumigaseki 3-chom, Chiyoda-ku Tokyo 20, JP)
Download PDF: