专利检索 ap:("SOLVAY SA") AND inv:"Jean-Marie Blaude" 第 1 页

1.

发明授权
Reduction of content of carboxylic acids and derivatives thereof in oleum, disulfuric acid or concentrated sulfuric acid 有权

公开(公告)号：US11111201B2

公开(公告)日：2021-09-07

申请号：US16607846

申请日：2018-04-25

申请人： SOLVAY SA

发明人： Jean-Marie Blaude , Benoit Gosselin , Alain Lambert , Matthias Marek , Harald Krueger , Jan Schostag , Miriam Heyd

IPC分类号： C07C51/42 , C01B17/88 , C01B17/90 , C07C51/43 , C07C51/56 , C07C51/573 , C07C53/00 , C07C53/16 , C07C53/18

摘要： The present invention concerns a process for the reduction of content of carboxylic acids and derivatives thereof in oleum, disulfuric acid or concentrated sulfuric acid. The invention further concerns a process for the manufacture of carboxylic acid anhydrides comprising the process for the reduction of content of carboxylic acids and derivatives thereof from oleum, disulfuric acid or concentrated sulfuric acid.