-
公开(公告)号：US10717697B2
公开(公告)日：2020-07-21
申请号：US16337910
申请日：2017-09-27
发明人： Sung Min Kim , Mi Sun Cha , Seong Hwan Choi , Young Heon Choi , Sung Joon Park , Chan Yeong Yun , Young Jong Seo
摘要： The present invention relates to a method for preparing 1,3-cyclohexanedicarboxylic acid capable of exhibiting excellent activity, of enhancing the reaction efficiency and economic efficiency by using a catalyst having improved durability under the reaction conditions of high temperature and strong acid, of achieving excellent conversion rates by allowing most of reactants to participate in the reaction, and of obtaining products having high purity while minimizing by-products within a shorter period of time. The method for preparing 1,3-cyclohexanedicarboxylic acid may include: reducing isophthalic acid in the presence of a metal catalyst fixed to a silica support and containing a palladium (Pd) compound and a copper (Cu) compound in a weight ratio of 1:0.1 to 0.5.
-
公开(公告)号：US10597344B2
公开(公告)日：2020-03-24
申请号：US16331506
申请日：2017-09-05
发明人： Mi Sun Cha , Seong Hwan Choi , Sung Min Kim , Sung Joon Park , Chan Yeong Yun , Young Heon Choi
IPC分类号： C07C29/149 , B01J23/62 , C07C29/94 , C07C35/14 , C07C29/17 , B01J23/46 , B01J35/10 , B01J21/08 , C07C33/26
摘要： The present invention relates to a method for preparing high-purity 1,3-cyclohexanedimethanol capable of achieving a high conversion rate by allowing most of the reactant to participate in the reaction, and of increasing reaction efficiency and economic efficiency by further simplifying the reaction process, while minimizing by-products within a shorter period of time.Specifically, the method for preparing 1,3-cyclohexanedimethanol includes reducing 1,3-cyclohexanedicarboxylic acid in the presence of a metal catalyst, which is fixed to a silica support and includes a ruthenium (Ru) compound, a tin (Sn) compound and a platinum (Pt) compound in a weight ratio of 1:0.8 to 1.2:1.2 to 2.4.
-
搜索结果
2 条记录 (耗时 0.012 秒)
