EP 0006796 B1 19811104 - PROCESS FOR THE PREPARATION OF OVERBASED METALLIFEROUS DETERGENT-DISPERSANT AGENTS FOR LUBRICATING OILS AND PRODUCT OBTAINED
Title (en)
PROCESS FOR THE PREPARATION OF OVERBASED METALLIFEROUS DETERGENT-DISPERSANT AGENTS FOR LUBRICATING OILS AND PRODUCT OBTAINED
Publication
Application
Priority
FR 7818947 A 19780626
Abstract (en)
[origin: ES481865A1] A process is provided for preparing detergent-dispersant compositions of high alkalinity by: 1. Carbonation, at a temperature of between about 100 DEG C. and 250 DEG C., with carbon dioxide of a reaction medium comprising a sulfurized alkylphenate of an alkaline-earth metal having a TBN of between about 1 and 170, an alkaline-earth metal alkylbenzene sulfonate having a molecular weight of more than about 300 and a TBN of less than or equal to about 150, an alkaline-earth metal compound, an alkylene glycol, and a dilution oil 2. Removal of the alkylene glycol and 3. Separation of the superalkalinized metallic detergent-dispersant thus obtained. The metallic detergent-dispersant compositions obtained are useful in improving the detergent-dispersant power of lubricating oils.
IPC 1-7
IPC 8 full level
C10M 159/20 (2006.01); C07F 3/04 (2006.01); C10M 159/24 (2006.01); C10N 10/04 (2006.01); C10N 30/04 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP US)
C10M 159/24 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0006796 A1 19800109; EP 0006796 B1 19811104; AT E356 T1 19811115; BR 7903980 A 19800325; CA 1124227 A 19820525; DE 2961227 D1 19820114; ES 481865 A1 19800216; FR 2429833 A1 19800125; FR 2429833 B1 19820402; JP S5540766 A 19800322; JP S6056200 B2 19851209; MX 5734 E 19840125; US 4412927 A 19831101; ZA 793197 B 19800625
DOCDB simple family (application)
EP 79400391 A 19790614; AT 79400391 T 19790614; BR 7903980 A 19790625; CA 330645 A 19790622; DE 2961227 T 19790614; ES 481865 A 19790625; FR 7818947 A 19780626; JP 7979379 A 19790626; MX 810679 U 19790621; US 35028282 A 19820219; ZA 793197 A 19790626