Reaction product of acidic molybdenum compound with basic nitrogen compound and lubricants containing same
First Claim
1. A process for preparing a molybdenum-containing composition which comprises reacting an acidic molybdenum compound selected from the group consisting of molybdic acid, ammonium molybdate, alkali metal molybdate, bromide and chloride molybdenum salts, and molybdenum trioxide and a basic nitrogen compound selected from the group consisting of a succinimide, carboxylic acid amide, Mannich Base, phosphonamide, thiophosphonamide, phosphoramide, and a hydrocarbon dispersant viscosity index improver wherein from 0.01 to 2 atoms of molybdenum are present per basic nitrogen atom, in the presence of a polar promoter wherein from 0.01 to 50 mols of promoter are present per mol of molybdenum, to form a molybdenum-containing complex.
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Abstract
Antioxidant additives for lubricating oil are prepared by combining a polar promoter, an acidic molybdenum compound and certain basic nitrogen compound to form a molybdenum-containing compositions.
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14 Claims
- 1. A process for preparing a molybdenum-containing composition which comprises reacting an acidic molybdenum compound selected from the group consisting of molybdic acid, ammonium molybdate, alkali metal molybdate, bromide and chloride molybdenum salts, and molybdenum trioxide and a basic nitrogen compound selected from the group consisting of a succinimide, carboxylic acid amide, Mannich Base, phosphonamide, thiophosphonamide, phosphoramide, and a hydrocarbon dispersant viscosity index improver wherein from 0.01 to 2 atoms of molybdenum are present per basic nitrogen atom, in the presence of a polar promoter wherein from 0.01 to 50 mols of promoter are present per mol of molybdenum, to form a molybdenum-containing complex.
Specification