Standard Oil Company (Indiana)

Amoco Corporation

Peter G Pappas

John A Cengel

Robert J Basalay

Adel B Abdul-Malek

Judith B Melville

Joseph S Strukl

Walter C Edmisten

Mark W Hunt

Described are processes for the gas-phase mono N-alkylation of an aniline or an aminonaphthalene using a C.sub.1 to C.sub.5 aliphatic alcohol or ether over certain catalyst compositions based upon crystalline molecular sieves or amorphous silica-aluminas.

Catalyzed gas-phase mono N-alkylation of aromatic primary amines

Dispersants containing basic amine groups are passivated toward fluorohydrocarbon compositions by reaction with a passivating amount of a dicarboxylic acid or anhydride.

Passivation of polyamine dispersants toward fluorohydrocarbon

Dispersant viscosity index improvers comprise the reaction product of an aliphatic alcohol or mixtures thereof, a tertiary amino alcohol and a styrene maleic anhydride copolymer.

Dispersant viscosity index improver comprising reaction product of a

Mild oxidation of polyamine crankcase dispersants passivates basically reacting polyamine dispersants to fluorocarbon compositions used in engines.

Oxidative passivation of polyamine-dispersants

Crude oil, residuum, and vacuum gas oil containing an effective amount of a linear alpha olefin substituted succinate diester of a linear primary monohydric alcohol.

Flow improver for heavy petroleum products comprising alkenyl succinate

Crude oils and residual fuel oils having improved pour point and flow properties are obtained by incorporating therein a small amount of a new terpolymer prepared from ethylene, a vinyl ester, and a dialkylvinyl carbinol. The terpolymer has a number average molecular weight of about 500-10,000 and suitably contains 45-80 wt. % ethylene, 10-25 wt. % vinyl ester of a fatty acid having up to about eight carbon atoms and 10-30 wt. % dialkylvinyl carbinol wherein the alkyl groups have up to about six carbon atoms.

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Downers Grove, IL, United States of America

Peter G Pappas