公开(公告)号：EP2605856A1

公开(公告)日：2013-06-26

申请号：EP11754950.1

申请日：2011-08-16

申请人： Eastman Chemical Company

发明人： BARNICKI, Scott, Donald ,  KANEL, Jeffrey, Scott ,  HAMPTON, Kenneth, Wayne, Jr. ,  CERVO, Eduardo, Gallas

IPC分类号： B01J31/24 ,  B01J31/40 ,  C07C29/149

CPC分类号： B01J31/24 ,  B01J31/2409 ,  B01J31/4053 ,  B01J2531/0238 ,  B01J2531/821 ,  C07C29/149 ,  C07C29/86 ,  Y02P20/52 ,  Y02P20/582 ,  Y02P20/584 ,  C07C31/202

摘要： Disclosed is a process for the extractive recovery of a homogeneous ruthenium catalyst from the reaction product of the hydrogenation of glycolic acid, glycolate esters, and/or glycolic acid oligomers with an extractant comprising a hydrophobic solvent and an optional hydrophilic solvent. The ruthenium catalyst, which can include 1,1,1-tris(diaryl- or dialkylphosphinomethyl)alkane ligands, can be recovered from the hydrophobic extract phase by back extraction with a hydrophilic solvent and recycled to a process for the preparation of ethylene glycol by the hydrogenation of glycolic acid and glycolic acid derivatives.

摘要翻译： 公开了一种从乙醇酸，乙醇酸酯和/或乙醇酸低聚物的氢化与包含疏水性溶剂和任选的亲水性溶剂的萃取剂的反应产物中提取回收均相钌催化剂的方法。 可以通过用亲水溶剂反萃取从疏水萃取相中回收可以包括1,1,1-三（二芳基 - 或二烷基膦基甲基）烷烃配体的钌催化剂，并再循环到制备乙二醇的方法中 乙醇酸和乙醇酸衍生物的氢化。