EP 0000264 B1 19820210 - THE PRODUCTION OF HIGHLY BASIC CALCIUM SULPHONATES.
Title (en)
THE PRODUCTION OF HIGHLY BASIC CALCIUM SULPHONATES.
Publication
Application
Priority
GB 2793277 A 19770704
Abstract (en)
[origin: EP0000264A1] Highly basic Calcium Sulphonate with improved solubility in heavy paraffinic oils and improved filterability is prepared by carbonating a mixture of sulphonic acid, calcium hydroxide, water, alcohol and solvent at a temperature from 20 DEG C to 35 DEG C and using a stoichiometric excess of calcium hydroxide and a specified amount of water.
IPC 1-7
IPC 8 full level
C07C 303/00 (2006.01); C07C 67/00 (2006.01); C07C 301/00 (2006.01); C07C 303/32 (2006.01); C07C 309/01 (2006.01); C07C 309/02 (2006.01); C07G 99/00 (2009.01); C10M 141/12 (2006.01); C10M 159/24 (2006.01); C10M 177/00 (2006.01); C10N 10/04 (2006.01); C10N 30/04 (2006.01); C10N 30/12 (2006.01); C10N 40/04 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP)
C07G 99/0024 (2022.08); C10M 159/24 (2013.01)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0000264 A1 19790110; EP 0000264 B1 19820210; BR 7804263 A 19790228; CA 1139078 A 19830111; DE 2861618 D1 19820318; JP H034599 B2 19910123; JP S5414919 A 19790203; SU 919592 A3 19820407
DOCDB simple family (application)
EP 78300065 A 19780622; BR 7804263 A 19780703; CA 306432 A 19780628; DE 2861618 T 19780622; JP 8140878 A 19780704; SU 2632855 A 19780703