Detergent-dispersants of high alkalinity for lubricating oils and process for their preparation
Patent
·
OSTI ID:6490554
New detergent-dispersants of high alkalinity useful as additives for lubricating oils and a novel process for their preparation are provided. The novel detergent-dispersant additives are prepared by: (1) sulfurizing an alkylphenol in the presence of an alkylbenzene sulfonate of low or zero T.B.N., an alkaline earth base and an alkylene glycol; (2) precarbonating the mixture thus obtained; (3) super-alkalinizing and carbonating the resultant precarbonated mixture by means of an alkaline earth base, CO/sub 2/, and an alkylene glycol; and (4) eliminating the excess alkylene glycol. These detergent-dispersant additives improve the detergent dispersant power of lubricating oils.
- Assignee:
- Orogil (France)
- Patent Number(s):
- US 4251379
- OSTI ID:
- 6490554
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020500 -- Petroleum-- Products & By-Products
023000* -- Petroleum-- Properties & Composition
ADDITIVES
ALCOHOLS
AROMATICS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL PREPARATION
DETERGENTS
EMULSIFIERS
ESTERS
GLYCOLS
HYDROXY COMPOUNDS
LUBRICANTS
LUBRICATING OILS
OILS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PHENOLS
SULFONIC ACID ESTERS
SURFACTANTS
SYNTHESIS
WETTING AGENTS
020500 -- Petroleum-- Products & By-Products
023000* -- Petroleum-- Properties & Composition
ADDITIVES
ALCOHOLS
AROMATICS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL PREPARATION
DETERGENTS
EMULSIFIERS
ESTERS
GLYCOLS
HYDROXY COMPOUNDS
LUBRICANTS
LUBRICATING OILS
OILS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PHENOLS
SULFONIC ACID ESTERS
SURFACTANTS
SYNTHESIS
WETTING AGENTS