Process for the preparation of superalkalinized metallic detergent-dispersants for lubricating oils and products obtained therefrom

Patent · Tue Nov 01 04:00:00 EST 1983

OSTI ID:5358511

Demoures, B; Le Coent, J L

A process is provided for preparing detergent-dispersant compositions of high alkalinity by: 1. Carbonation, at a temperature of between about 100/sup 0/ C. and 250/sup 0/ 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.

• Assignee: Orogil Corp.
• Patent Number(s): US 4412927
• OSTI ID: 5358511
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
ADDITIVES
ALKALINE EARTH METALS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
DETERGENTS
ELEMENTS
EMULSIFIERS
LUBRICANTS
LUBRICATING OILS
METALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PRODUCTION
SURFACTANTS
WETTING AGENTS