Title:
METHOD FOR PRODUCING HYDROXYLAMINE
Document Type and Number:
Japanese Patent JP2005239702
Kind Code:
A
Abstract:
To provide a method for producing a high concentration and high purity hydroxylamine by reducing a risk caused by taking out the hydroxylamine from the top or side surface of a column by distillation in producing the hydroxylamine by the reaction of the salt of the hydroxylamine with an alkali compound.
This method for producing the hydroxylamine is characterized by comprising a reaction process of obtaining the hydroxylamine by reacting the hydroxylamine salt with the alkali compound, a purification process of purifying the hydroxylamine by an ion-exchange and a concentration process of concentrating the hydroxylamine at the column bottom part by the distillation.
Inventors:
AOKI TAKANORI
KO TOSHITAKA
KO TOSHITAKA
Application Number:
JP2004232437A
Publication Date:
September 08, 2005
Filing Date:
August 09, 2004
Export Citation:
Assignee:
SHOWA DENKO KK
International Classes:
C07C239/08; (IPC1-7): C07C239/08
Domestic Patent References:
| JP2001513479A | 2001-09-04 | |||
| JPS62171905A | 1987-07-28 | |||
| JP2002012416A | 2002-01-15 | |||
| JP2000211906A | 2000-08-02 | |||
| JPS4878099A | 1973-10-19 | |||
| JP2005504704A | 2005-02-17 | |||
| JPH0421506A | 1992-01-24 | |||
| JPS4914640A | 1974-02-08 | |||
| JP2005220012A | 2005-08-18 | |||
| JP2000505033A | 2000-04-25 | |||
| JPS5477298A | 1979-06-20 |
Attorney, Agent or Firm:
Shunichiro Suzuki
Koji Makimura
Chihata Takahata
Toru Suzuki
Koji Makimura
Chihata Takahata
Toru Suzuki