CN116410806A - Hydraulic oil and hydraulic system - Google Patents
Hydraulic oil and hydraulic system Download PDFInfo
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- CN116410806A CN116410806A CN202111669644.6A CN202111669644A CN116410806A CN 116410806 A CN116410806 A CN 116410806A CN 202111669644 A CN202111669644 A CN 202111669644A CN 116410806 A CN116410806 A CN 116410806A
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- Prior art keywords
- hydraulic oil
- mass
- ionic liquid
- hydraulic
- polyether
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- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 91
- 239000002608 ionic liquid Substances 0.000 claims abstract description 33
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 23
- 229920000570 polyether Polymers 0.000 claims abstract description 23
- LVZUNTGFCXNQAF-UHFFFAOYSA-N n-nonyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCCC)C1=CC=CC=C1 LVZUNTGFCXNQAF-UHFFFAOYSA-N 0.000 claims abstract description 19
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 15
- YSIQDTZQRDDQNF-UHFFFAOYSA-L barium(2+);2,3-di(nonyl)naphthalene-1-sulfonate Chemical compound [Ba+2].C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1.C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 YSIQDTZQRDDQNF-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000010452 phosphate Substances 0.000 claims abstract description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 14
- PXZZRISEDBDRLY-UHFFFAOYSA-N (2-tert-butylphenyl) dihydrogen phosphate Chemical compound CC(C)(C)C1=CC=CC=C1OP(O)(O)=O PXZZRISEDBDRLY-UHFFFAOYSA-N 0.000 claims description 5
- 125000003354 benzotriazolyl group Chemical class N1N=NC2=C1C=CC=C2* 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 abstract description 16
- 238000007254 oxidation reaction Methods 0.000 abstract description 16
- -1 alkylbenzene triazole Chemical class 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002180 Plurasafe® CL Polymers 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- CAPOZRICGSDRLP-UHFFFAOYSA-N tris(2,3-dimethylphenyl) phosphate Chemical compound CC1=CC=CC(OP(=O)(OC=2C(=C(C)C=CC=2)C)OC=2C(=C(C)C=CC=2)C)=C1C CAPOZRICGSDRLP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
- C10M2215/224—Imidazoles
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/0405—Phosphate esters used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
- C10N2030/42—Phosphor free or low phosphor content compositions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
- C10N2030/43—Sulfur free or low sulfur content compositions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubricants (AREA)
Abstract
The invention provides hydraulic oil and a hydraulic system. The hydraulic oil of the invention comprises the following components in percentage by mass: 92-96% of phosphate; polyether 2-4%; 1-2% of ionic liquid; 0.5-1% of 2, 6-di-tert-butyl-p-methylphenol; 0.5-1% of nonyldiphenylamine; 0.01 to 0.1 percent of barium dinonyl naphthalene sulfonate; 0.05-0.1% of alkylbenzene triazole; wherein the ionic liquid comprises the structure of formula 1. The hydraulic oil provided by the invention has relatively excellent lubricating property, flame retardancy and oxidation stability.
Description
Technical Field
The invention relates to the technical field of lubricating oil, in particular to hydraulic oil and a hydraulic system.
Background
Pumps and high power oil motors are the primary moving parts in hydraulic systems, and in industrial applications, it is often necessary to add hydraulic oil to the pumps and oil motors to assist the pump and oil motor operation. With the rapid development of hydraulic technology, the requirements on the oxidation stability, flame retardance and lubricity of hydraulic oil are also greatly improved.
Disclosure of Invention
The invention provides a hydraulic oil which has excellent oxidation stability, flame retardancy and lubricity.
The invention provides a hydraulic system which comprises the hydraulic oil, can operate efficiently, is safe to operate and has long service life.
The invention provides hydraulic oil, which comprises the following components in percentage by mass:
wherein, the ionic liquid comprises the following structures:
wherein n is a positive integer from 4 to 9.
The hydraulic oil as described above, wherein the polyether is contained in an amount of 2 to 3% by mass based on the total mass of the hydraulic oil.
The hydraulic oil comprises the polyether and the ionic liquid, wherein the mass ratio of the polyether to the ionic liquid is 2:1.
the hydraulic oil as described above, wherein the mass percentage of the 2, 6-di-t-butyl-p-methylphenol is 0.6-0.8% based on the total mass of the hydraulic oil.
The hydraulic oil as described above, wherein the mass percentage content of the nonyldiphenylamine is 0.6 to 0.8% based on the total mass of the hydraulic oil.
The hydraulic oil as described above, wherein the barium dinonylnaphthalene sulfonate is contained in an amount of 0.02 to 0.08% by mass based on the total mass of the hydraulic oil.
The hydraulic oil as described above, wherein the alkylated benzotriazole is 0.06-0.08% by mass based on the total mass of the hydraulic oil.
The hydraulic oil, wherein the ionic liquid has a structural formula as described above;
the hydraulic oil as described above, wherein the phosphate ester comprises a trixylyl phosphate and/or a tert-butylphenyl phosphate.
The invention provides a hydraulic system comprising hydraulic oil as described above.
The invention provides hydraulic oil, which comprises specific content of phosphate, polyether, ionic liquid, 2, 6-di-tert-butyl p-methylphenol, nonyldiphenylamine, barium dinonylnaphthalene sulfonate and alkyl benzotriazole, wherein the ionic liquid comprises a structure of a formula 1, and the ionic liquid for forming the hydraulic oil has excellent oxidation stability, flame retardancy and lubricating property. It is worth mentioning that the ionic liquid does not contain sulfur and phosphorus, and the content of sulfur and phosphorus in the hydraulic oil can be reduced as much as possible by using the ionic liquid, so that the environmental protection performance of the hydraulic oil can be improved.
The hydraulic system provided by the invention has relatively excellent oxidation stability, flame retardancy and lubricating property due to the inclusion of the hydraulic oil, and the hydraulic system not only can operate efficiently, but also is safe to operate and long in service life.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The first aspect of the invention provides hydraulic oil, which comprises the following components in percentage by mass:
wherein, ionic liquid includes following structure:
wherein n is a positive integer from 4 to 9.
The invention is not limited to the specific source of the ionic liquid, and the ionic liquid can be prepared by adopting a preparation method commonly used in the field, and can also be obtained by commercial purchase.
The invention is not particularly limited to phosphate, polyether, 2, 6-di-tert-butyl-p-methylphenol, nonyldiphenylamine, barium dinonylnaphthalene sulfonate and alkylbenzene triazole, and phosphate, polyether, 2, 6-di-tert-butyl-p-methylphenol, nonyldiphenylamine, barium dinonylnaphthalene sulfonate and alkylbenzene triazole which are commonly used in the art can be selected.
In the present invention, the hydraulic oil includes the structure of formula 1. On the one hand, the main component of the hydraulic oil is the ionic liquid shown in the formula 1, so that the hydraulic oil can show excellent compatibility when being matched with other components; on the other hand, the hydraulic oil is excellent in oxidation stability, lubrication and flame retardance. The hydraulic oil can meet the DL/T571-2014 standard requirements, can be used for a digital electrohydraulic control system (EH system) of a steam turbine of a power plant, and can ensure stable movement of equipment in the use process.
Meanwhile, the ionic liquid does not contain sulfur and phosphorus, and the content of the sulfur and the phosphorus in the hydraulic oil can be reduced as much as possible by using the ionic liquid, so that the environmental protection performance of the hydraulic oil can be improved, and the industrial application is convenient. In addition, the ionic liquid also has excellent rust prevention, corrosion prevention and emulsification resistance, so that the hydraulic oil containing the ionic liquid also has excellent rust prevention, corrosion prevention and emulsification resistance and has wide industrial application range.
In some embodiments of the present invention, when the phosphate esters include tri-xylyl phosphate and/or t-butylphenyl phosphate, better compatibility with other components is enabled, and high temperature stability and lubricity of the hydraulic oil are better improved.
When the polyether comprises oil-soluble polyether, the viscosity-temperature performance, low-temperature fluidity and high-temperature stability of the hydraulic oil can be better improved.
The structural formula of the ionic liquid is as follows:
Further, when the polyether is contained in an amount of 2 to 3% by mass based on the total mass of the hydraulic oil, the hydraulic oil is more excellent in flame retardancy, oxidation stability and lubricity.
In some embodiments of the invention, the mass ratio of polyether to ionic liquid is 2:1. when the mass ratio of polyether to ionic liquid is 2:1, not only can improve the viscosity of hydraulic oil and improve the oxidation stability of the hydraulic oil, but also can make the appearance of the hydraulic oil transparent.
In some embodiments of the present invention, to further improve the appearance of the hydraulic oil, the mass percentage of 2, 6-di-t-butyl-p-methylphenol is 0.6-0.8% based on the total mass of the hydraulic oil. Further, the purity of the 2, 6-di-tert-butyl p-methylphenol is more than 99%, and the hydraulic oil is still excellent in appearance transparency after being oxidized.
In some embodiments of the invention, the nonyldiphenylamine is present in an amount of 0.6 to 0.8 mass percent, based on the total mass of the hydraulic oil.
In the invention, when the mass percentage of the nonyldiphenylamine is within the above range, the oxidation stability of the hydraulic oil can be better improved. Furthermore, the purity of the nonyl diphenylamine is more than 99%, so that the oxidation stability of the hydraulic oil can be improved better, and the high-purity nonyl diphenylamine is beneficial to improving the purity of the hydraulic oil, so that impurities are prevented from affecting the purity of the hydraulic oil, and further the color of the hydraulic oil is deepened.
In some embodiments of the present invention, the barium dinonylnaphthalene sulfonate is present in an amount of 0.02 to 0.08% by mass based on the total mass of the hydraulic oil in order to further increase the compatibility of the components and improve the oxidation stability, lubricity, and flame retardancy of the hydraulic oil.
In some embodiments of the invention, the alkylated benzotriazole is present in an amount of 0.06 to 0.08 mass percent based on the total mass of the hydraulic oil. The mass percent of the alkylated benzotriazole can be more beneficial to improving the oxidation stability, the lubricity and the flame retardance of hydraulic oil within the range, and especially can protect copper parts in a hydraulic system and prolong the service life of the hydraulic system.
The hydraulic oil in some embodiments of the present invention can be obtained by uniformly mixing the raw materials according to the above-described composition. The order of addition, stirring rate, and mixing temperature of the raw materials are not particularly limited in the present invention.
The hydraulic oil disclosed by the invention has the advantages of relatively good oxidation stability, flame retardance and lubricity, simple preparation process, easiness in operation and wide application range.
A second aspect of the invention provides a hydraulic system comprising a hydraulic oil as described above.
The hydraulic system provided by the invention has relatively excellent oxidation stability, flame retardancy and lubricating property due to the inclusion of the hydraulic oil, and the pump and the oil motor in the hydraulic system can operate efficiently, are safe to operate and have long service life.
The technical scheme of the invention is further described below by combining specific embodiments.
The ionic liquid in each example is
Wherein n is selected from positive integers from 4 to 9, obtained by commercial purchase;
the polyether in each of the examples and comparative examples was Plurasafe CL 6000, purchased from basf;
the alkylbenzene triazole in each example and comparative example was a51, purchased from dow's chemistry;
the purity of nonyldiphenylamine in each of examples and comparative examples was 95%;
the purity of 2, 6-di-t-butyl-p-methylphenol in each of examples and comparative examples was 99%.
Example 1
The composition of the hydraulic oil of this example is shown in table 1:
TABLE 1
| Name of the name | Mass percent/% |
| Trixylyl phosphate | 93.44 |
| Polyether | 3 |
| Ionic liquid (n=9) | 1.5 |
| 2, 6-Di-tert-butyl-p-methylphenol | 1 |
| Nonyl diphenylamines | 1 |
| Barium dinonyl naphthalene sulfonate | 0.01 |
| Alkylbenzotriazoles | 0.05 |
Example 2
The composition of the hydraulic oil of this example is shown in table 2:
TABLE 2
| Name of the name | Mass percent/% |
| Tert-butylphenyl phosphate | 95.8 |
| Polyether | 2 |
| Ionic liquid (n=4) | 1 |
| 2, 6-Di-tert-butyl-p-methylphenol | 0.5 |
| Nonyl diphenylamines | 0.5 |
| Barium dinonyl naphthalene sulfonate | 0.1 |
| Alkylbenzotriazoles | 0.1 |
Example 3
The composition of the hydraulic oil of this example is shown in table 3:
TABLE 3 Table 3
| Name of the name | Mass percent/% |
| Trixylyl phosphate | 50 |
| Tert-butylphenyl phosphate | 42.37 |
| Polyether | 4 |
| Ionic liquid (n=7) | 2 |
| 2, 6-Di-tert-butyl-p-methylphenol | 0.75 |
| Nonyl diphenylamines | 0.75 |
| Barium dinonyl naphthalene sulfonate | 0.05 |
| Alkylbenzotriazoles | 0.08 |
Example 4
The composition of the hydraulic oil of this example is shown in table 4:
TABLE 4 Table 4
| Name of the name | Mass percent/% |
| Trixylyl phosphate | 92.94 |
| Polyether | 4 |
| Ionic liquid (n=9) | 1 |
| 2, 6-Di-tert-butyl-p-methylphenol | 1 |
| Nonyl diphenylamines | 1 |
| Barium dinonyl naphthalene sulfonate | 0.01 |
| Alkylbenzotriazoles | 0.05 |
Example 5
The composition of the hydraulic oil of this example is shown in table 5:
TABLE 5
Example 6
The composition of the hydraulic oil of this example is shown in table 6:
TABLE 6
| Name of the name | Mass percent/% |
| Trixylyl phosphate | 93.84 |
| Polyether | 3 |
| Ionic liquid (n=9) | 1.5 |
| 2, 6-Di-tert-butyl-p-methylphenol | 0.6 |
| Nonyl diphenylamines | 1 |
| Barium dinonyl naphthalene sulfonate | 0.01 |
| Alkylbenzotriazoles | 0.05 |
Example 7
The composition of the hydraulic oil of this example is shown in table 7:
TABLE 7
Example 8
The composition of the hydraulic oil of this example is shown in table 8:
TABLE 8
| Name of the name | Mass percent/% |
| Trixylyl phosphate | 92.28 |
| Polyether | 4 |
| Ionic liquid (n=9) | 2 |
| 2, 6-Di-tert-butyl-p-methylphenol | 0.8 |
| Nonyl diphenylamines | 0.8 |
| Barium dinonyl naphthalene sulfonate | 0.04 |
| Alkylbenzotriazoles | 0.08 |
Comparative example 1
The composition of the hydraulic oil of this comparative example is shown in table 9:
TABLE 9
| Name of the name | Mass percent/% |
| Trixylyl phosphate | 97.48 |
| Polyether | 1 |
| Ionic liquid (n=9) | 0.5 |
| 2, 6-Di-tert-butyl-p-methylphenol | 0.5 |
| Nonyl diphenylamines | 0.4 |
| Barium dinonyl naphthalene sulfonate | 0.04 |
| Alkylbenzotriazoles | 0.08 |
Comparative example 2
The composition of the hydraulic oil of this comparative example is shown in table 10:
table 10
| Name of the name | Mass percent/% |
| Trixylyl phosphate | 93 |
| Polyether | 5 |
| 2, 6-Di-tert-butyl-p-methylphenol | 1 |
| Nonyl diphenylamines | 0.94 |
| Barium dinonyl naphthalene sulfonate | 0.01 |
| Alkylbenzotriazoles | 0.05 |
Characterization of Performance
Performance tests were performed on the hydraulic oils in examples and comparative examples, and the test results are shown in table 11.
TABLE 11
As can be seen from table 11, the hydraulic oil prepared in the examples of the present invention has superior oxidation stability, lubricity (density and kinematic viscosity) and flame retardancy (high self-ignition point).
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The hydraulic oil is characterized by comprising the following components in percentage by mass:
wherein, the ionic liquid comprises the following structures:
wherein n is a positive integer from 4 to 9.
2. The hydraulic oil according to claim 1, characterized in that the polyether is present in an amount of 2-3% by mass, based on the total mass of the hydraulic oil.
3. The hydraulic oil according to claim 1 or 2, characterized in that the mass ratio of the polyether to the ionic liquid is 2:1.
4. the hydraulic oil according to any one of claims 1 to 3, characterized in that the mass percentage of the 2, 6-di-tert-butyl-p-methylphenol is 0.6 to 0.8% based on the total mass of the hydraulic oil.
5. The hydraulic oil according to any one of claims 1 to 4, characterized in that the nonyldiphenylamine is contained in an amount of 0.6 to 0.8 mass% based on the total mass of the hydraulic oil.
6. The hydraulic oil according to any one of claims 1 to 5, characterized in that the barium dinonylnaphthalene sulfonate is contained in an amount of 0.02 to 0.08% by mass based on the total mass of the hydraulic oil.
7. The hydraulic oil according to any one of claims 1 to 6, characterized in that the alkylated benzotriazole content is 0.06-0.08% by mass based on the total mass of the hydraulic oil.
8. The hydraulic oil according to any one of claims 1 to 7, wherein the ionic liquid has a structural formula of;
9. the hydraulic oil according to any one of claims 1 to 8, characterized in that the phosphate comprises a trixylyl phosphate and/or a tert-butylphenyl phosphate.
10. A hydraulic system comprising the hydraulic oil of any one of claims 1-9.
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| CN102356146A (en) * | 2009-01-20 | 2012-02-15 | 卢布里佐尔公司 | Hydraulic composition with improved wear properties |
| US20170096614A1 (en) * | 2014-03-18 | 2017-04-06 | Council Of Scientific & Industrial Research | Halogen free ionic liquids as lubricant or lubricant additives and a process for the preparation thereof |
| WO2017221446A1 (en) * | 2016-06-21 | 2017-12-28 | Ｋｙｂ株式会社 | Hydraulic fluid |
| CN107541319A (en) * | 2017-09-06 | 2018-01-05 | 浙江实美润滑科技有限公司 | A kind of ashless hydraulic fluid of high viscosity index (HVI) low pour point and preparation method thereof |
| CN110305722A (en) * | 2019-07-12 | 2019-10-08 | 安徽中天石化股份有限公司 | A kind of phosphate fire resistant hydraulic oil |
| CN110527580A (en) * | 2019-01-26 | 2019-12-03 | 山东北方淄特特种油股份有限公司 | A kind of high-low temperature resistant hydraulic oil and its production technology |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356146A (en) * | 2009-01-20 | 2012-02-15 | 卢布里佐尔公司 | Hydraulic composition with improved wear properties |
| US20170096614A1 (en) * | 2014-03-18 | 2017-04-06 | Council Of Scientific & Industrial Research | Halogen free ionic liquids as lubricant or lubricant additives and a process for the preparation thereof |
| WO2017221446A1 (en) * | 2016-06-21 | 2017-12-28 | Ｋｙｂ株式会社 | Hydraulic fluid |
| CN107541319A (en) * | 2017-09-06 | 2018-01-05 | 浙江实美润滑科技有限公司 | A kind of ashless hydraulic fluid of high viscosity index (HVI) low pour point and preparation method thereof |
| CN110527580A (en) * | 2019-01-26 | 2019-12-03 | 山东北方淄特特种油股份有限公司 | A kind of high-low temperature resistant hydraulic oil and its production technology |
| CN110305722A (en) * | 2019-07-12 | 2019-10-08 | 安徽中天石化股份有限公司 | A kind of phosphate fire resistant hydraulic oil |
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