Title:
【発明の名称】シクロヘキサノンオキシムの製造法
Document Type and Number:
Japanese Patent JP2003535841
Kind Code:
A
Abstract:
The invention relates to a process for the production of cyclohexanone oxime in which a phosphate-containing aqueous reaction medium is cycled from a hydroxylammonium synthesis zone to a cyclohexanone oxime synthesis zone and back to the hydroxylammonium synthesis zone, in which hydroxylammonium synthesis zone hydroxylammonium is formed by catalytic reduction of nitrate with hydrogen, and in which cyclohexanone oxime synthesis zone hydroxylammonium is reacted with cyclohexanone to form cyclohexanone oxime, where the concentration hydroxylammonium in the aqueous reaction medium entering the cyclohexanone oxime synthesis zone is higher than 1.0 mol/l.
Inventors:
Benequer, Arno
Orbing, henk
Pit, alex
Pieters, Paulus, Johannes, Jacobs
Orbing, henk
Pit, alex
Pieters, Paulus, Johannes, Jacobs
Application Number:
JP2002501813A
Publication Date:
December 02, 2003
Filing Date:
May 31, 2001
Export Citation:
Assignee:
DSM N.V.
International Classes:
C01B21/14; C07C249/08; C07C251/44; (IPC1-7): C07C249/08; C07C251/44
Domestic Patent References:
| JPS4835256B1 | 1973-10-26 | |||
| JPS4835255B1 | 1973-10-26 | |||
| JPS4835256B1 | 1973-10-26 | |||
| JPS4835255B1 | 1973-10-26 | |||
| JPS5011878B1 | 1975-05-07 | |||
| JPS50154224A | 1975-12-12 |
Foreign References:
| GB1138750A | 1969-01-01 |
Attorney, Agent or Firm:
Mitsuo Matsui