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公开(公告)号：EP3083547B1
公开(公告)日：2018-09-05
申请号：EP14812472.0
申请日：2014-12-15
申请人： Rhodia Operations
IPC分类号： C07C62/32
CPC分类号： C07C51/47 , B01D15/08 , C07C45/29 , C07C45/512 , C07C45/61 , C07C51/367 , C07C51/41 , C07C59/52 , C07C47/58
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2.发明公开PROCEDE DE SEPARATION DE COMPOSES MANDELIQUES SOUS FORME SALIFIEE ET SON UTILISATION POUR LA PREPARATION D'ALDEHYDE AROMATIQUE 审中-公开PROCESS了用于在盐形成芳香醛生产杏仁酸化合物分离及其用途
公开(公告)号：EP3083547A1
公开(公告)日：2016-10-26
申请号：EP14812472.0
申请日：2014-12-15
申请人： Rhodia Operations
IPC分类号： C07C62/32
CPC分类号： C07C51/47 , B01D15/08 , C07C45/29 , C07C45/512 , C07C45/61 , C07C51/367 , C07C51/41 , C07C59/52 , C07C47/58
摘要： The invention describes a method for separating a mandelic compound in salified form from an aqueous reaction medium resulting from the condensation reaction of a hydroxylated aromatic compound with glyoxylic acid in a basic medium, said method comprising a) decanting said reaction medium in such a way as to recover an organic phase formed from the excess of said aromatic compound and an aqueous phase formed from said mandelic compound and a quantity of the excess of said aromatic compound and b) bringing said aqueous phase into contact with an adsorbent support, resulting in the selective adsorption of said aromatic compound and the recovery of an aqueous flow comprising said mandelic compound in salified form, which is subjected to an oxidation step before being converted into hydroxyaromatic aldehyde by electrodialysis.
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