![稳定氢氰化催化剂的方法](/CN/2017/1/2/images/201710014164.jpg)
基本信息:
- 专利标题: 稳定氢氰化催化剂的方法
- 专利标题(英):Process for stabilizing hydrocyanation catalyst
- 申请号:CN201710014164.3 申请日:2013-05-24
- 公开(公告)号:CN106957244A 公开(公告)日:2017-07-18
- 发明人: 威廉·J·坦恩三世
- 申请人: 因温斯特技术公司
- 申请人地址: 瑞士圣加伦
- 专利权人: 因温斯特技术公司
- 当前专利权人: 英威达纺织(英国)有限公司
- 当前专利权人地址: 瑞士圣加伦
- 代理机构: 中科专利商标代理有限责任公司
- 代理人: 陈平
- 优先权: 61/654,584 20120601 US
- 主分类号: C07C253/10
- IPC分类号: C07C253/10 ; C07C255/04 ; B01J31/24
The invention provides a method of forming a phosphonate diester compound from a ligand hydrolysis product (LHP) of a phosphite ligand used in a nickel-phosphite hydrocyanation catalyst, such as for conversion of 3-pentenenitrile to adiponitrile, which serves to eliminate acidic LHP compound for a hydrocyanation reaction milieu where the acidic LHP can catalyze further catalyst ligand destruction. The invention further provides phosphonate disester compounds prepared by alkylation of diarylphosphite LHP in the presence of a nickel-phosphite catalyst comprising a bidentate ligand, and a continuous hydrocyanation process for production of adiponitrile wherein catalyst ligand breakdown is inhibited through inactivation of ligand hydrolysis products towards further breakdown. A method of stabilizing a hydrocyanation catalyst is provided.
公开/授权文献:
- CN106957244B 稳定氢氰化催化剂的方法 公开/授权日:2020-05-29
IPC结构图谱:
C | 化学;冶金 |
--C07 | 有机化学 |
----C07C | 无环或碳环化合物 |
------C07C253/00 | 羧酸腈的制备 |
--------C07C253/08 | .由氰化氢或其盐与不饱和化合物加成 |
----------C07C253/10 | ..含碳—碳双键的化合物 |