EP 0932746 A2 19990804 - USE OF ALKANESULPHONIC ACIDS AS ASPHALTENE DISPERSANTS
Title (en)
USE OF ALKANESULPHONIC ACIDS AS ASPHALTENE DISPERSANTS
Title (de)
VERWENDUNG VON ALKANSULFONSÄUREN ALS ASPHALTEN-DISPERGATOREN
Title (fr)
UTILISATION D'ACIDES ALCANESULFONIQUES COMME DISPERSANTS D'ASPHALTENE
Publication
Application
Priority
- DE 19642493 A 19961015
- EP 9705513 W 19971008
Abstract (en)
[origin: DE19642493A1] The invention concerns the use of secondary alkanesulphonic acids as asphaltene dispersants in crude oils and products derived therefrom, the chain being between 8 and 22 carbon atoms long.
IPC 1-7
E21B 37/06; C10G 75/04; C10L 10/00; C10L 1/24; C10L 1/14; C10L 1/10
IPC 8 full level
E21B 37/06 (2006.01); C09K 8/524 (2006.01); C09K 23/02 (2022.01); C10G 75/04 (2006.01); C10L 1/24 (2006.01); C10L 10/18 (2006.01)
CPC (source: EP US)
C09K 8/524 (2013.01 - EP US); C10G 75/04 (2013.01 - EP US)
Citation (search report)
See references of WO 9816718A2
Designated contracting state (EPC)
BE DE DK FR GB IT NL SE
DOCDB simple family (publication)
DE 19642493 A1 19980416; AR 008889 A1 20000223; BR 9712323 A 19990831; CA 2268821 A1 19980423; CO 4870786 A1 19991227; EP 0932746 A2 19990804; JP 2001502389 A 20010220; NO 991557 D0 19990330; NO 991557 L 19990330; US 5925233 A 19990720; WO 9816718 A2 19980423; WO 9816718 A3 19980522
DOCDB simple family (application)
DE 19642493 A 19961015; AR P970104705 A 19971013; BR 9712323 A 19971008; CA 2268821 A 19971008; CO 97059611 A 19971010; EP 9705513 W 19971008; EP 97912134 A 19971008; JP 51798398 A 19971008; NO 991557 A 19990330; US 95003397 A 19971014