公开(公告)号：US3590070A

公开(公告)日：1971-06-29

申请号：US3590070D

申请日：1968-06-03

Applicant: CELANESE CORP

Inventor： MARTIN PRESTON K ,  MIREUR JOHN P

IPC: C07C67/26 ,  C07C69/82

CPC classification number: C07C69/82 ,  C07C67/26

Abstract: A PROCESS FOR REACTING TEREPHTHALIC ACID WITH AN ALKYLENE OXIDE IN AN INERT HALOHYDROCARBON OR ALKYLBENZENE LIQUID REACTION MEDIUM WHEREIN THE TEREPHTHALIC ACID-CONTAINING WETTED SOLIDS SEPARATED FROM THE REACTION ZONE ARE RECYCLED BY SLURRY THE WETTED SOLIDS IN THE LIQUID REACTION MEDIUM AND PUMPING THEM TO THE REACTION ZONE. IN RECYCLING THE WETTED SOLIDS OF THE SLURRY, CARE MUST BE TAKEN TO AVOID TEMPERATURES OF 90-105*C. IN THE CASE OF AN ALKYLBENZENE LIQUID MEDIUM OR 80 TO 100*C. WHEN USING A HALOHYDROCARBON LIQUID MEDIUM.

公开(公告)号：US3600430A

公开(公告)日：1971-08-17

申请号：US3600430D

申请日：1968-03-22

Applicant: CELANESE CORP

Inventor： MARTIN PRESTON K ,  BLAND BOBBY J

IPC: C07C69/80 ,  C07C69/82

CPC classification number: C07C67/58 ,  C07C69/82

Abstract: A PROCESS FOR THE PURIFICATION OF A DIESTER OF A BENZENE DICARBOXYLIC ACID, E.G. BIS(2-HYDROXYETHYL) TEREPHTHALATE, BY MIXING A MONONUCLEAR AROMATIC HYDROCARBON OR A HALOHYDROCARBON SOLVENT WITH AN INSOLUBLE AMOUNT OF MOLTEN DIESTER, FOLLOWED BY SEPARATING THE RESULTING TWO PHASES AND RECOVERING PURIFIED DIESTER FROM THE LIGHTER OF THE TWO PHASES.

公开(公告)号：US3584031A

公开(公告)日：1971-06-08

申请号：US3584031D

申请日：1968-04-19

Applicant: CELANESE CORP

Inventor： MARTIN PRESTON K ,  LARKIN DONALD R

IPC: C07C69/80 ,  C07C69/82

CPC classification number: C07C67/26 ,  C07C69/82

Abstract: PROCESS FOR THE PRODUCTION OF BIS-HYDROXYALKYL ESTERS OF BENZENE DICARBOXYLIC ACID BY REACTING THE DIACID WITH AND ALKYLENE OXIDE UTILIZING A CATALYST WHICH IS A POLYMER OF AN ALKYLENE IMINE, FOR EXAMPLE, POLYETHYLENEIMINE.