Back to results
US 8,216,986 B2Granted
Low-phosphorous lubricant additive
OwnerKajal Parekh, Pranesh B. Aswath +2inventors
InventorsKajal Parekh, Pranesh B. Aswath, Harold Shaub, Ronald L. Elsenbaumer
Life of this patent
Estimating the term…
Abstract
A lubricant additive produced by the process comprising mixing a metal halide with an organophosphate, the metal halide participating as a reactant and reacting the metal halide and the organophosphate to produce a reaction mixture comprising the lubricant additive. Also disclosed is a lubricant produced by the 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.
Claims32
The lubricant additive produced by the process comprising:
- mixing a metal fluoride with a pentavalent, mono- or di-thiophosphate, the metal fluoride participating as a reactant, wherein the metal fluoride 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
- reacting the metal fluoride and the pentavalent, mono- or di-thiophosphate to produce a reaction mixture comprising the lubricant additive, wherein said reacting comprises heating to a temperature from about 60° C. to about 125° C., the reaction producing, in the lubricant additive, at least one compound that comprises at least one phosphorus-fluorine bond.
1 more element
A method of manufacturing a lubricant additive comprising:
- mixing a metal fluoride with a pentavalent, mono- or di-thiophosphate;
- reacting the metal fluoride and the pentavalent, mono- or di-thiophosphate to produce a reaction mixture, the metal fluoride participating as a reactant, wherein the metal fluoride 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 wherein said reacting comprises heating a temperature from about 60° C. to about 125° C.;
- and
- separating said reaction mixture into solid and liquid phases, at least one phase comprising said lubricant additive, the reaction producing, in the lubricant additive, at least one compound that comprises at least one phosphorus-fluorine bond.
2 more elements
A lubricant produced by the process comprising:
- forming a lubricant additive by reacting metal fluoride and pentavalent, mono- or di-thiophosphate together to form a reaction mixture, the metal fluoride participating as a reactant, wherein the metal fluoride 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 wherein said reacting comprises heating to a temperature from about 60° C. to about 125° C.;
- and
- adding at least a portion of the reaction mixture to a lubricant base, the reaction producing, in the lubricant additive, at least one compound that comprises at least one phosphorus-fluorine bond.
1 more element
A method for producing a lubricant comprising:
- forming a lubricant additive in a reaction mixture by reacting metal fluoride and pentavalent, mono- or di-thiophosphate together to form the reaction mixture, the metal fluoride participating as a reactant, wherein the metal fluoride 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 wherein said reacting comprises heating to a temperature from about 60° C. to about 125° C.;
- and
- adding at least a portion of the reaction mixture to a lubricant base to form said lubricant, the reaction producing, in the lubricant additive, at least one compound that comprises at least one phosphorus-fluorine bond.
1 more element
A lubricant produced by the process comprising:
- adding metal fluoride and pentavalent, mono- or di-thiophosphate to a lubricant base;
- and
- reacting said metal fluoride and said pentavalent, mono- or di-thiophosphate to form a lubricant, the metal fluoride participating as a reactant, wherein the metal fluoride is selected from the group consisting of:
- aluminum trifluoride, zirconium tetrafluoride, titanium trifluoride, titanium tetrafluoride, ferric fluoride, chromium difluoride, chromium trifluoride, nickel difluoride, stannus difluoride, stannous tetrafluoride, and combinations thereof and wherein said reacting comprises heating to a temperature from about 60° C. to about 125° C., the reaction producing at least one compound that comprises at least one phosphorus-fluorine bond.
1 more element
A method for producing a lubricant comprising:
- reacting ferric fluoride with ZDDP at a temperature range of about 60° C. to about 125° 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;
- and
- adding at least a portion of said reaction mixture to a lubricant base, the reaction producing, in the mixture, at least one compound that comprises at least one phosphorus-fluorine bond.
Dependencies are inferred from the claim text.