PROCESS FOR THE PREPARATION OF CYCLOHEXANONE OXIME.,申请号MX2002PA11960-传众专利搜索

PROCESS FOR THE PREPARATION OF CYCLOHEXANONE OXIME.

申请公布号：MXPA02011960(A)

申请号：MX2002PA11960

申请日期：2001.05.31

申请公布日期：2003.07.14

申请人：

DSM N.V.

发明人：BLAAUW, MARC

分类号：C01B21/14;C07C249/08;C07C251/44;(IPC1-7):C07C249/08

主分类号：C01B21/14

摘要：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, the cyclohexanone and an organic solvent being fed into the cyclohexanone oxime synthesis zone, an organic medium comprising the organic solvent and cyclohexanone oxime being withdrawn from the cyclohexanone oxime synthesis zone, characterized in that the ratio fh/fc<1.00 whe