Lubricant composition containing two heavy metal containing compounds and a phosphorus compound and process of preparing the same
AssigneeICI Americas Inc.
InventorHartwig Schroeder
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Abstract
An improved lubricant is described which contains mineral or synthetic oils and lubricant concentrates, and as additives contains two heavy metal compounds as well as a metal and sulfur-free phosphorus compound. The synthesis of the lubricants is also described.
Claims15
A lubricant composition comprising:
- A. between 80 and 97 percent by weight of a lubricant selected from the group consisting of mineral oil, synthetic oil and a lubricant concentrate;
- B. first and second heavy metal containing organic compounds wherein said heavy metal is selected from the group consisting of molybdenum, zinc, tungsten and vanadium;
- and
- C. an organic phosphorus compound free of metal and sulfur selected from the group consisting of trialkyl phosphates, triaryl phosphates and alkylphenyl phosphates.
A process for producing a lubricant composition comprising 80 to 97 weight percent by weight of a lubricant selected from the group consisting of a mineral oil, synthetic oil, and a lubricant concentrate which comprises heating in a vessel said lubricant to a temperature between 25.degree. C. and 100.degree. C., stirring into said vessel (i.) two heavy metal containing organic compounds wherein said heavy metal is selected from the group consisting of molybdenum, zinc, tungstens and vanadium and (ii.) an organic phosphorus compound free of metal and sulfur selected from the group consisting of trialkyl phosphates, triaryl phosphates and alkylphenyl phosphates until dissolution is achieved.
Dependencies are inferred from the claim text.