Lubricant for use with chlorine-containing refrigerants in compressor applications
AssigneeThe Lubrizol Corporation
InventorsBRIDGETT RAKESTRAW, DAVID M. PALLISTER, ANDREW D. SUMNER, SCOTT MILLER, ZHANA ADAMS
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Abstract
A composition comprising a chlorine-containing refrigerant blend and a compressor lubricant comprising: an oil of lubricating viscosity comprising at least one oxygenate; and at least one phosphorous additive. The phosphorous additive may be present at 0.1 to 4 5 wt %, based on a total weight of the compressor lubricant.
Claims27
A composition comprising a chlorine-containing refrigerant blend, the refrigerant blend comprising a chlorine-containing compound and a hydrofluoro olefin (“HFO”);
- and
- a. a compressor lubricant comprising:
- i. an oil of lubricating viscosity comprising at least one polyol ester;
- and
- ii. at least one phosphorous additive;
- wherein the at least one phosphorous additive is present at 0.1 to 4 wt %, based on a total weight of the compressor lubricant,
- wherein the at least one phosphorous additive comprises an aryl phosphate or an aryl phosphate in combination with an alkenyl phosphite, and
- wherein the aryl phosphate is selected from butylated triphenyl phosphate, tricresyl phosphate, or mixtures thereof.
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A method of reducing tin corrosion in a compressor system, the method comprising:
- a. adding at least one phosphorus containing additive to a compressor lubricant,
- wherein the compressor lubricant comprises:
- b. an oil of lubricating viscosity comprising at least one polyol ester;
- and
- wherein the compressor system contains a chlorine-containing refrigerant blend, the refrigerant blend comprising a chlorine-containing compound and a hydrofluoro olefin (“HFO”);
- wherein the at least one phosphorous additive is present at 0.1 to 4 wt %, based on a total weight of the compressor lubricant, and
- wherein the at least one phosphorous additive comprises an aryl phosphate or an aryl phosphate in combination with an alkenyl phosphite, and
- wherein the aryl phosphate is selected from butylated triphenyl phosphate, tricresyl phosphate, or mixtures thereof.
Dependencies are inferred from the claim text.