Standard Oil Company (indiana)

Amoco Corporation

The Standard Oil Company

Albert R Sabol

Nicolas C Petrellis

Mack W Hunt

Dennis G Petrille

Joseph J Valcho

Ernest H Baughman

Steven E Lindberg

Edward W Heffern

Nicholas C Petrellis

The process comprises in sequence the following steps: (a) introducing into a reaction zone a sulfonic acid comprising a neutral ammonium sulfonate; (b) adding to and mixing with said sulfonic acid a substantially inert diluent, an alkaline earth metal compound, water, and an alkanol to form a hydration mixture; (c) heating said hydration mixture at an elevated temperature to hydrate said alkaline earth metal compound; (d) adding a molybdenum-containing compound to said reaction zone at a time during the period beginning after the introduction of said sulfonic acid and extending through said refluxing of said hydration mixture; and (e) adding an acidic material to said reaction zone at a temperature within the range of about 26.7.degree. C. (80.degree. F.) to about 68.5.degree. C. (155.degree. F.) to form a molybdenum-alkaline earth metal sulfonate dispersion. In an embodiment of the process, the process is characterized further by stripping the alkanol from the reaction zone prior to adding the acidic material. A polybutene succinic anhydride can be added to the reaction zone during the process as a process aid. Preferably, it is added prior to the addition of the molybdenum-containing compound.

Process for the preparation of overbased, molybdenum-alkaline earth

Ammonia compounds improve zinc dihydrocarbyl dithiophosphate compositions and processes for their preparation.

Ammonia catalyzed preparation of zinc dihydrocarbyl dithiophosphates

A process for preparing molybdenum phosphosulfurized hydrocarbon compositions by reacting an aqueous solution of a molybdenum compound with a phosphosulfurized hydrocarbon.

Process for making molybdenum phosphosulfurized hydrocarbon composition

Over-based oil-soluble magnesium sulfonate compositions are formed by one-step carbonation of a reactant mixture containing magnesium hydroxide formed in situ.

Method of preparing overbased magnesium sulfonates

Process for preparing overbased magnesium sulfonate dispersions by hydrating at an elevated temperature a magnesium compound in the presence of an inert diluent, an alkanol, a sulfonic acid comprising a neutral ammonium sulfonate, and water, removing the alkanol and the displaced ammonia, and contacting the resulting mixture with an acidic material at a temperature of about 80.degree. F to 155.degree. F.

Process for the manufacture of overbased magnesium sulfonates

Disclosed are a process for manufacturing metal diaryl dithiophosphates, certain metal diaryl dithiophosphates, and lubricating oil compositions containing said metal diaryl dithiophosphates. The process for the manufacture of metal diaryl dithiophosphate generally comprises reacting P.sub.2 S.sub.5 with a hydroxyl aryl compound to form a dithiophosphoric acid; and neutralizing said dithiophosphoric acid with zinc, barium, cadmium, magnesium or nickel base in the presence of an effective amount of a promoter, said promoter comprising dialkyl dithiophosphoric acid. Metal diaryl dithiophosphates, especially for use in lubricating oil compositions, can be made by the above process.

Metal aryl dithiophosphates and their manufacture

Disclosed are a process for the manufacture of metal dithiophosphates especially the neutralization of dithiophosphoric acids, and also the product made by such process. The process for the continuous neutralization of dithiophosphoric acid with metal base comprises contacting dithiophosphoric acid with metal base to form a neutralization mixture; passing said neutralization mixture through a static mixer in order to achieve mixing of the neutralization mixture and substantial neutralization of said dithiophosphoric acid; cooling the substantially neutralized dithiophosphoric acid; and recovering metal dithiophosphate.

Metal dithiophosphates and their manufacture

This invention relates to a novel lubricant oil addition agent which is a phosphosulfurized C.sub.35 to C.sub.160 hydrocarbon modified N-(hydroxy and C.sub.50 - C.sub.160 alkyl-substituted benzyl) alkylene polyamine. Such novel addition agent imparts anti-oxidant and unexpected dispersancy functions to lubricant oils commonly used as crankcase lubricants for internal combustion engines. Such novel addition agent also imparts anti-oxidant and detergency functions to the less viscous oils used to lubricate automatic transmissions and at the same time prevent failure of the rubber seals used therein from deterioration (hardening) by oxidation and distortion softening by undue swelling. The present inventive addition agent unexpectedly provides both detergency and an anti-oxidant functions for lubricant oil which are superior to the related analog addition agent derived from the reaction of one molar proportion of a phosphosulfurized 500 to 2800 (Staudinger) molecular weight hydrocarbon with from 0.5 up to 4 molar proportion of an N-(hydroxy and C.sub.4 - C.sub.24 alkyl-substituted benzyl) alkylene polyamine.

Phosphosulfurized hydrocarbon modified N-(hydroxy and alkyl-substituted

Over-based oil-soluble barium alkenyl sulfonates wherein the alkenyl moiety is a propene or butene polymer having a number average molecular weight of about 250-500 are obtained by heating a mixture of ammonium alkenyl sulfonates, a precarbonated mixture of barium oxide in methanol, barium oxide and water in the range of about 160-190.degree.F for time sufficient to convert the ammonium sulfonate to barium sulfonate.

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Munster, IN, United States of America

Albert R Sabol