Global Patent Index - EP 3057938 A1

EP 3057938 A1 20160824 - METHOD FOR AGEING THE REACTION MIXTURE IN A SULFONATION PROCESS

Title (en)

METHOD FOR AGEING THE REACTION MIXTURE IN A SULFONATION PROCESS

Title (de)

VERFAHREN ZUM ALTERN DES REAKTIONSGEMISCHES IN EINEM SULFONIERUNGSVERFAHREN

Title (fr)

PROCÉDÉ DE VIEILLISSEMENT DU MÉLANGE RÉACTIONNEL DANS UN PROCÉDÉ DE SULFONATION

Publication

EP 3057938 A1 20160824 (EN)

Application

EP 13779230 A 20131018

Priority

EP 2013071849 W 20131018

Abstract (en)

[origin: WO2015055251A1] A method and a plant for ageing a liquid post-sulfonation reaction mixture comprising linear alkylbenzenesulfonic acid and unreacted linear alkylbenzene using a system of two or more stirred tank reactors which are operated in cycles in filling steps, during which there runs the first step of continuous ageing at nonsteady-state conditions, followed by ageing steps in batch process conditions.

IPC 8 full level

C07C 303/06 (2006.01); B01J 19/18 (2006.01); C07C 309/31 (2006.01)

CPC (source: EP)

B01J 19/1856 (2013.01); B01J 19/1862 (2013.01); C07C 303/06 (2013.01); B01J 2219/00031 (2013.01); B01J 2219/00036 (2013.01); B01J 2219/00166 (2013.01); B01J 2219/00182 (2013.01)

Citation (search report)

See references of WO 2015055251A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2015055251 A1 20150423; EP 3057938 A1 20160824

DOCDB simple family (application)

EP 2013071849 W 20131018; EP 13779230 A 20131018