公开(公告)号：EP2984064A4

公开(公告)日：2016-11-23

申请号：EP14785708

申请日：2014-04-09

申请人： TORAY INDUSTRIES

发明人： KAWAMURA KENJI ,  MORITA IZUMI ,  ITO MASATERU ,  SAKAMI SATOSHI ,  MAKINO MASATAKA ,  YAMADA KATSUSHIGE ,  BURK MARK J ,  JAPS MICHAEL ,  CLARK WARREN

IPC分类号： C07C29/80 ,  B01D15/36 ,  C07C31/20 ,  C07C67/08 ,  C07C69/82 ,  C08G63/183

CPC分类号： C07C29/80 ,  B01D3/143 ,  B01D3/145 ,  B01D3/34 ,  B01D15/361 ,  B01D61/025 ,  B01D2311/2623 ,  B01D2311/2669 ,  C07C67/08 ,  C08G63/183 ,  C07C31/207 ,  C07C69/82

摘要： A process produces 1,4-butanediol by purifying 1,4-butanediol originated from a fermentation broth, by which process 1,4-butanediol having properties suited as a material of producing a polyester is obtained, which 1,4-butanediol enables to reduce by-production of tetrahydrofuran during the esterification reaction and to reduce the delay in polymerization. The process of producing 1,4-butanediol includes adding an alkaline substance other than an ammonia or an amine to an aqueous 1,4-butanediol-containing solution originated from a fermentation broth; distilling the resulting mixture; and recovering a 1,4-butanediol-containing solution from the vapor flow.