EP 0853607 A1 19980722 - METHOD OF MAKING 1,2,4-TRICHLOROBENZENE
Title (en)
METHOD OF MAKING 1,2,4-TRICHLOROBENZENE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON 1,2,4-TRICHLORBENZOL
Title (fr)
PROCEDE DE PRODUCTION DE 1,2,4-TRICHLOROBENZENE
Publication
Application
Priority
- US 9706941 W 19970428
- US 65443496 A 19960528
Abstract (en)
[origin: WO9745389A1] Disclosed is a method of making 1,2,4-trichlorobenzene. Dichlorobenzene containing less than an isomeric amount of meta-dichlorobenzene is isomerized to produce an isomeric mixture of dichlorobenzenes substantially rich in meta-dichlorobenzene. The isomeric mixture of dichlorobenzenes is chlorinated with gaseous chlorine to produce 1,2,4-trichlorobenzene and unreacted dichlorobenzenes. The mixture of 1,2,4-trichlorobenzene and unreacted dichlorobenzenes is separated by distillation and the unreacted dichlorobenzenes are recycled to the isomerizer.
IPC 1-7
IPC 8 full level
C07B 61/00 (2006.01); C07C 17/12 (2006.01); C07C 17/358 (2006.01); C07C 25/10 (2006.01)
CPC (source: EP)
C07C 17/12 (2013.01); C07C 17/358 (2013.01); C07C 25/10 (2013.01)
Citation (search report)
See references of WO 9745389A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 9745389 A1 19971204; AU 2742997 A 19980105; EP 0853607 A1 19980722; JP 3002546 B2 20000124; JP H10510852 A 19981020
DOCDB simple family (application)
US 9706941 W 19970428; AU 2742997 A 19970428; EP 97921378 A 19970428; JP 54238397 A 19970428