Low-phosphorous lubricants
OwnerKajal Parekh, Pranesh B. Aswath +2inventors
InventorsKajal Parekh, Pranesh B. Aswath, Harold Shaub, Ronald L. Elsenbaumer
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Abstract
Disclosed is a low-phosphorous lubricant produced by a process comprising forming a lubricant additive by reacting metal halide and organophosphate together to form a reaction mixture, the metal halide participating as a reactant, and adding at least a portion of the reaction mixture to a lubricant base comprising from about 0.01 weight percent phosphorous to about 0.1 weight percent phosphorous.
Claims25
A lubricant produced by the process comprising:
- forming a lubricant additive by reacting a metal halide with a pentavalent, mono- or di-thiophosphate to form a reaction mixture, the metal halide participating as a reactant so that at least one compound is formed having a phosphorus-fluorine bond, wherein the metal halide is selected from the group consisting of aluminum trifluoride, zirconium tetrafluoride, titanium trifluoride, titanium tetrafluoride, ferric fluoride, chromium difluoride, chromium trifluoride, nickel difluoride, stannous difluoride, stannous tetrafluoride, and combinations thereof;
- and
- adding at least a portion of the reaction mixture to a lubricant base comprising from about 0.01 weight percent phosphorous to about 0.1 weight percent phosphorous.
A method for producing a lubricant comprising:
- forming a lubricant additive in a reaction mixture by reacting a metal halide with a pentavalent, mono- or di-thiophosphate, the metal halide participating as a reactant so that at least one compound is formed having a phosphorus-fluorine bond, wherein the metal halide is selected from the group consisting of aluminum trifluoride, zirconium tetrafluoride, titanium trifluoride, titanium tetrafluoride, ferric fluoride, chromium difluoride, chromium trifluoride, nickel difluoride, stannous difluoride, stannous tetrafluoride, and combinations thereof;
- and
- adding at least a portion of the reaction mixture to a lubricant base to form said lubricant, said lubricant base comprising from about 0.01 weight percent phosphorous to about 0.1 weight percent phosphorous.
A lubricant produced by the process comprising:
- adding metal halide, wherein the metal halide is selected from the group consisting of aluminum trifluoride, zirconium tetrafluoride, titanium trifluoride, titanium tetrafluoride, ferric fluoride, chromium difluoride, chromium trifluoride, nickel difluoride, stannous difluoride, stannous tetrafluoride, and combinations thereof, and a pentavalent, mono- or di-thiophosphate to a lubricant base, said lubricant base comprising from about 0.01 weight percent phosphorous to about 0.1 weight percent phosphorous;
- and
- reacting said metal halide and said pentavalent, mono- or di-thiophosphate to form a lubricant, the metal halide participating as a reactant so that at least one compound is formed having a phosphorus-fluorine bond.
A method for producing a lubricant comprising:
- reacting ferric fluoride with ZDDP at a temperature range of about 60° C. to about 150° C. for a period of about 20 minutes to about 24 hours, wherein the ferric fluoride acts primarily as a reactant, and wherein said reacting produces a reaction mixture containing at least one compound having a phosphorus-fluorine bond;
- and
- adding at least a portion of said reaction mixture to a lubricant base comprising from about 0.01 weight percent phosphorous to about 0.1 weight percent phosphorous.
Dependencies are inferred from the claim text.