公开(公告)号：US06759556B2

公开(公告)日：2004-07-06

申请号：US10297181

申请日：2003-08-28

Applicant: Marc Blaauw ,  Theodorus Friederich Maria Riesthuis ,  Alex Pit ,  Henk Oevering ,  Antonius Jacobus Franciscus Simons

Inventor： Marc Blaauw ,  Theodorus Friederich Maria Riesthuis ,  Alex Pit ,  Henk Oevering ,  Antonius Jacobus Franciscus Simons

IPC: C07C24908

CPC classification number: C07C249/08 ,  C01B21/1418 ,  C07C2601/14 ,  C07C251/44

Abstract: 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, wherein the phosphate concentration in the acqueous reaction medium entering the cyclohexanone oxime synthesis zone is higher than 3.0 mol/l.

Abstract translation: 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羟基铵合成区，其中通过催化还原硝酸盐形成羟基铵合成区羟基铵 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水性反应介质中的磷酸盐浓度高于3.0mol / l。

公开(公告)号：US06844469B2

公开(公告)日：2005-01-18

申请号：US10297180

申请日：2001-05-31

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

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

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

CPC classification number: C07C249/08 ,  C01B21/1418 ,  C07C2601/14 ,  Y02P20/582 ,  C07C251/44

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.

Abstract translation: 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。