公开(公告)号：US06844469B2

公开(公告)日：2005-01-18

申请号：US10297180

申请日：2001-05-31

申请人： Arno Benneker ,  Paulus Johannes Jacobus Pieters ,  Alex Pit ,  Henk Oevering

发明人： Arno Benneker ,  Paulus Johannes Jacobus Pieters ,  Alex Pit ,  Henk Oevering

IPC分类号： C01B21/14 ,  C07C249/08 ,  C07C251/44

CPC分类号： C07C249/08 ,  C01B21/1418 ,  C07C2601/14 ,  Y02P20/582 ,  C07C251/44

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, where the concentration hydroxylammonium in the aqueous reaction medium entering the cyclohexanone oxime synthesis zone is higher than 1.0 mol/l.

摘要翻译： 本发明涉及一种制备环己酮肟的方法，其中含磷酸盐的水性反应介质从羟基铵合成区循环到环己酮肟合成区并返回到形成羟基铵合成区羟基铵的羟基铵合成区 通过用氢气还原硝酸盐，其中环己酮肟合成区羟基铵与环己酮反应形成环己酮肟，其中进入环己酮肟合成区的含水反应介质中的羟基铵浓度高于1.0mol / l。