申请人:Liu Yun-Shan
公开号:US20080154067A1
公开(公告)日:2008-06-26
Disclosed are catalyst solutions for preparing aldehydes with variable normal- to iso-aldehyde ratios comprising one or more phosphonite ligands, rhodium, and a hydroformylation solvent. Also disclosed is a process for preparing aldehydes with variable normal- to iso-aldehyde ratios comprising contacting an olefin, hydrogen, and carbon monoxide with one or more phosphonite ligands, rhodium, and a hydroformylation solvent. The phosphonite-based catalyst solutions provide the ability to manipulate the normal- to iso-aldehyde ratio by varying one or more process variables including carbon monoxide partial pressure, temperature, and gram moles ligand to gram atoms rhodium.
揭示了一种用于制备具有可变正-异醛比例的催化剂溶液,其中包括一种或多种膦酸酯配体、铑和氢甲酰溶剂。还揭示了一种用于制备具有可变正-异醛比例的醛的方法,包括将烯烃、氢气和一种或多种膦酸酯配体、铑和氢甲酰溶剂接触。基于膦酸酯的催化剂溶液提供了通过改变一个或多个工艺变量,包括一氧化碳分压、温度和克摩尔配体与克原子铑之比,来操纵正-异醛比例的能力。