Oil additive and telomer applications of 4-esters of trimellitic anhydride

Conference · Sat Aug 01 04:00:00 EDT 1981 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:6034697

Puskas, I; Fields, E K; Piasek, E J

Three methods for the selective 4-esterification of trimellitic anhydride (TMA) briefly reviewed are: (1) reaction of the acid chloride derivative of TMA with alcohols or phenols in the presence of stoichiometric quantities of a tertiary nitrogen base, (2) reaction between the carboxyl group of TMA and an ester of a low-boiling organic acid via a trans-acidolysis mechanism, and (3) thermal reaction of TMA with alcohols. A large number of esters prepared by these methods were evaluated as potential rust inhibitors in lubricating oils, and some differences in rust prevention were noted for esters resulting from the different modes of preparation. However, the data were in agreement that rust-preventing properties increase with increasing chain length in the ester moiety, and esters with more than 20 carbons in the chain performed excellently. The synthesis and applications of 4-tert-butyl pertrimellitate anhydride are described. The structure of the compound was also documented. (BLM)

• Research Organization: Amoco Chemicals Corp., Naperville, IL
• OSTI ID: 6034697
• Report Number(s): CONF-810813-Vol.1
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 26:3
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADDITIVES
ANHYDRIDES
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CORROSION INHIBITORS
ESTERIFICATION
KINETICS
LUBRICANTS
LUBRICATING OILS
MELLITIC ACID
OILS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
REACTION KINETICS