公开(公告)号：US3787479A

公开(公告)日：1974-01-22

申请号：US3787479D

申请日：1970-05-20

Applicant: INVENTA AG

Inventor： GREHL W ,  HAHN W ,  STOLL B

IPC: C07C67/03 ,  C07C69/34 ,  C07C69/82

CPC classification number: C07C69/82 ,  C07C67/03 ,  C07C69/34

Abstract: TRANSESTERIFICATION OF ALKYL ESTERS OF A DICARBOXYLIC ACID AND A DIOL AIDED BY A METAL SALT CATALYST WHEREIN THE REACTION MEDIUM IS PASSED THROUGH AN ELONGATED REACTION ZONE IN PLUG-LIKE FLOW (LITTLE BACK-MIXING OF THE REACTION MEDIUM), WHEREIN SOME OF THE TRANSESTERIFICATION PRODUCT IS MAINTAINED PRESENT AT THE INLET END OF THE REACTION ZONE. THEREBY INACTIVATION OF THE CATALYST IS PREVENTED.