发明申请
- 专利标题： HYDROCARBOXYLATION OF FORMALDEHYDE IN THE PRESENCE OF A HIGHER ORDER CARBOXYLIC ACID AND A HOMOGENEOUS CATALYST
- 专利标题（中）： 甲醛在较高级羧酸和均相催化剂存在下的氢化反应
-
申请号： US13431369申请日： 2012-03-27
-
公开(公告)号： US20130261328A1公开(公告)日： 2013-10-03
- 发明人: Scott Donald Barnicki , Robert Thomas Hembre , Stephen Neal Falling , Andrew James Vetter
- 申请人： Scott Donald Barnicki , Robert Thomas Hembre , Stephen Neal Falling , Andrew James Vetter
- 申请人地址： US TN Kingsport
- 专利权人： EASTMAN CHEMICAL COMPANY
- 当前专利权人： EASTMAN CHEMICAL COMPANY
- 当前专利权人地址： US TN Kingsport
- 主分类号： C07C67/36
- IPC分类号： C07C67/36 ; C07C29/149 ; C07C51/12
摘要：
Disclosed is a process for the production and purification of glycolic acid or glycolic acid derivatives by the carbonylation of formaldehyde in the presence of a homogeneous acid catalyst and a carboxylic acid. This invention discloses hydrocarboxylations and corresponding homogeneous acid catalyst and glycolic acid separations. The homogeneous acid catalyst is readily separated from the hydrocarboxylation reaction effluent and recycled and the carboxylic acid is readily removed from the glycolic acid and the carboxylic acid is recycled.
公开/授权文献
信息查询
