[EN] METHODS OF CONTROLLING HYDROFORMYLATION PROCESSES<br/>[FR] PROCÉDÉS DE COMMANDE DE PROCESSUS D'HYDROFORMYLATION
申请人:DOW TECHNOLOGY INVESTMENTS LLC
公开号:WO2019231611A1
公开(公告)日:2019-12-05
The present invention relates to methods of controlling hydroformylation processes for producing normal (N) and iso (I) aldehydes at a N:I ratio. In one aspect, a method of controlling a hydroformylation process comprises contacting an olefin with carbon monoxide, hydrogen and a catalyst, the catalyst comprising (A) a transition metal, (B) a monophosphine, and (C) a tetraphosphine having the structure described herein, the contacting conducted in one or more reaction zones and at hydroformylation conditions to produce a blend of normal (N) and iso (I) aldehydes at a N:I ratio, the method comprising at least one of increasing the N:I ratio by adding additional tetraphosphine to a reaction zone; decreasing the N:I ratio by adding additional monophosphine to a reaction zone; or increasing the N:I ratio by volatilization of the free monophosphine.
本发明涉及控制氢甲酰化过程以生产正(N)和异(I)醛的方法,其N:I比率。在一个方面,控制氢甲酰化过程的方法包括将烯烃与一氧化碳、氢气和催化剂接触,所述催化剂包括(A)过渡金属、(B)单膦和(C)具有此处描述的结构的四膦,接触在一个或多个反应区域中进行,并在氢甲酰化条件下产生正(N)和异(I)醛的混合物,该方法包括通过向反应区域添加额外的四膦来增加N:I比率;通过向反应区域添加额外的单膦来减少N:I比率;或通过游离单膦的挥发来增加N:I比率。