Abstract: The presence of a minor amount of an anti-oxidant, a metal detergent, a dispersant or mixtures thereof in a hydrocarbon liquid containing certain quaternary ammonium hydroxides has been found to be effective in improving the thermal stability of the hydroxides.

Abstract: A lubricant-fuel mixture containing an amine salt and/or amide of a thiobenzoic acid derivative is effective in reducing the smoke emitted during operation of a two-cycle internal combustion engine. A preferred thiobenzoic acid derivative is 4-hydroxy-3,5-ditert-dibutyldithiobenzoate.

Abstract: A wax-containing middle distillate, such as diesel fuel, having improved low temperature flow properties comprises three or more components including (A) an oil-soluble ethylene backbone flow improving polymer such as ethylene vinyl acetate copolymer, (B) a hydrocarbyl substituted amine salt and/or amide of a carboxylic acid or anhydride such as phthalic anhydride salts, and (C) a hydrocarbyl substituted amine salt and/or amide of a derivative of benzoic acid such as the dihydrogenerated tallow amine salt of an alkyl substituted dithiobenzoic acid.

Abstract: A wax-containing middle distillate, such as diesel fuel, having improved low temperature flow properties comprises three or more components including (A) an oil-soluble ethylene backbone flow improving polymer such as ethylene vinyl acetate copolymer, (B) a hydrocarbyl substituted amine salt and/or amide of a carboxylic acid or anhydride such as phthalic anhydride salts, and (C) a hydrocarbyl substituted amine salt of a derivative of phosphoric acid such as the dihydrogenated tallow amine salt of dialkyldithiophosphoric acid.

Abstract: A lubricating oil composition having improved antiwear, antioxidation, and extreme pressure performance comprises a lubricating oil and a long chain hydrocarbyl amine, such as tallow amine, salt or amide of a derivative of benzoic acid or dithiobenzoic acid such as 4-hydroxy-3, 5-di-tert-butyldithiobenzoic acid.

Abstract: The addition of certain mixed ligand metal complexes and a metal thiophosphate to a lubricating oil results in a significant improvement in the anti-wear performance of the oil. Tin dithiocarbamate-ethoxyethylxanthate and zinc dialkyldithiophosphate are preferred additives.

Abstract: The addition of a metal alkoxyalkylxanthate and a metal thiophosphate to a lubricating oil results in an unexpected synergistic improvement in the antiwear performance of the oil. Nickel ethoxyethylxanthate and zinc dialkyldithiophosphate are most preferred additives.

Abstract: The addition of a thiodixanthogen and a metal thiophosphate to a lubricating oil results in an unexpected synergistic improvement in the antiwear performance of the oil. Octylthiodixanthogen and zinc dialkyldithiophosphate are most preferred additives.

Abstract: The addition of a metal alkoxyalkylxanthate, a dixanthogen, and a metal thiophosphate to a lubricating oil results in a synergistic improvement in the antiwear performance of the oil. Nickel ethoxyethylxanthate, diethoxyethyl dixanthogen, and zinc dialkyldithiophosphate are particularly preferred additives.

Abstract: The addition of an alkyl alkoxyalkylxanthate and a metal thiophosphate to a lubricating oil results in an unexpected synergistic improvement in the antiwear performance of the oil. Butyl ethoxyethylxanthate and zinc dialkyldithiophosphate are most preferred additives.

Abstract: It now has been discovered that lubricating compositions containing an additive formed by reacting Mo(CO).sub.6 with dixanthogen can be enhanced by the inclusion in the composition ligands selected from polydentate ligands and mixtures thereof. Thus, the present invention comprises a major amount of an aoil of lubricating viscosity and a minor but effective amount of an additive formed by reacting Mo(CO).sub.6 with dixanthogen of the formula (ROCS.sub.2).sub.2 wherein R is an organo group having a sufficient number of carbon atoms to render the additive soluble in the oil; and a polydentate ligand or mixtures thereof, the mole ratio of additive to ligand being in the range of from about 1:1 to about 1:4.

Abstract: It now has been discovered that lubricating compositions containing (disulfido) tris (N, N-substituted dithiocarbamato) Mo(V) compounds can be enhanced by the inclusion in the composition certain polydentate ligands. Thus, the present invention comprises a major amount of an oil of lubricating viscosity and a minor, but effective, amount of an antiwear and friction reducing additive consisting essentially of (disulfido) tris (N, N-substituted dithiocarbamato) molybdenum (V) compounds and polydentate ligands and mixtures thereof.

Abstract: The presence of a minor amount of certain quaternary ammonium hydroxides in an engine lubricating oil has been found to be effective in reducing and controlling combustion chamber deposits and octane requirement increase in spark ignition internal combustion engines and in reducing oil consumption in diesel engines.

Abstract: Metal palmitates have been found to give excellent antiwear properties to an engine lubricating oil. They are particularly effective when used in a complex with dimethyl sulfoxide.

Abstract: The use of oxidants such as hydroperoxides in a lubricating oil have been found to be effective in reducing the war of one or more metal and/or ceramic surfaces in contact with an advanced ceramic surface. The reduced wear may be obtained in the absence of conventional antiwear additives such as zinc dialkyldithiophosphate.

Abstract: A lube oil composition having improved antiwear and friction reducing properties, together with a method for manufacturing same, are described. The lube oil comprises:A. a basestock;B. a metal phosphate;C. a metal carbamate; andD. a para alkyl hydroxy-aryl sulfide.

Abstract: This invention involves a method for preparing magnesium and calcium dihydrocarbyldithiophosphates comprising reacting magnesium or calcium in elemental metal form with a dihydrocarbyldithiophoric acid in the presence of an effective amount of a selected lower alkyl alcohol, particularly methanol, as a reaction promoter.

Abstract: A method for electrochemically removing halogen from a halogenated compound utilizing an electrically conducting liquid medium in an electrolytic cell is disclosed. Halogen is extracted and reacted with a metal present in the sacrificial anode to form a relatively insoluble metal halide salt. The invention is of particular utility in removing halogen from aromatic and aliphatic compounds.

Abstract: This invention involves the preparation of selected metal dithiobenzoates by electrolysis of a substituted dithiobenzoic acid with a metal. It further involves the use of such metal dithiobenzoates as additives in lubricating hydrocarbon compositions.

Abstract: A lubricating oil composition with improved corrosion inhibiting properties comprising a major amount of a lubricating oil basestock and an effective amount of a complex of a selected heterocyclic nitrogen compound and an organometallic salt of a C.sub.4 to C.sub.22 fatty acid.