CN117660088A - Mineral oil type vacuum pump oil composition, and preparation method and application thereof - Google Patents
Mineral oil type vacuum pump oil composition, and preparation method and application thereof Download PDFInfo
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- 239000003921 oil Substances 0.000 title claims abstract description 65
- 239000000203 mixture Substances 0.000 title claims abstract description 44
- 239000002480 mineral oil Substances 0.000 title claims abstract description 22
- 235000010446 mineral oil Nutrition 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title abstract description 28
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000003112 inhibitor Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000002199 base oil Substances 0.000 claims description 41
- 239000003963 antioxidant agent Substances 0.000 claims description 23
- 230000003078 antioxidant effect Effects 0.000 claims description 22
- 239000002518 antifoaming agent Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 239000006078 metal deactivator Substances 0.000 claims description 10
- 239000013556 antirust agent Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- -1 alkenyl succinic acid amide derivative Chemical class 0.000 claims description 7
- 150000001412 amines Chemical class 0.000 claims description 7
- 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 description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- 150000003862 amino acid derivatives Chemical class 0.000 claims description 3
- 150000002118 epoxides Chemical class 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229940054051 antipsychotic indole derivative Drugs 0.000 claims description 2
- 150000001565 benzotriazoles Chemical class 0.000 claims description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 2
- 150000002475 indoles Chemical class 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 150000004867 thiadiazoles Chemical class 0.000 claims description 2
- 239000010723 turbine oil Substances 0.000 claims description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 description 28
- 229910052751 metal Inorganic materials 0.000 description 28
- 230000000052 comparative effect Effects 0.000 description 16
- 239000003795 chemical substances by application Substances 0.000 description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 description 11
- 239000011707 mineral Substances 0.000 description 11
- 239000008186 active pharmaceutical agent Substances 0.000 description 10
- 239000012188 paraffin wax Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- HTHGAIADRJRJOY-SNVBAGLBSA-N (6s)-6-(4-bromophenyl)-2,3,5,6-tetrahydroimidazo[2,1-b][1,3]thiazole Chemical compound C1=CC(Br)=CC=C1[C@@H]1N=C2SCCN2C1 HTHGAIADRJRJOY-SNVBAGLBSA-N 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 4
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000013522 chelant Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000012847 fine chemical Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 230000003405 preventing effect Effects 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- QDCPNGVVOWVKJG-VAWYXSNFSA-N 2-[(e)-dodec-1-enyl]butanedioic acid Chemical compound CCCCCCCCCC\C=C\C(C(O)=O)CC(O)=O QDCPNGVVOWVKJG-VAWYXSNFSA-N 0.000 description 1
- 206010023509 Kyphosis Diseases 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000199 molecular distillation Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
Classifications
-
- 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
- Y02P20/10—Process efficiency
Landscapes
- Lubricants (AREA)
Abstract
The invention provides a mineral oil type vacuum pump oil composition, a preparation method and application thereof, and demulsifiers, rust inhibitors and the like with proper proportions are added, so that the mineral oil type vacuum pump oil composition has better water separation capability in the use process of oil products, can effectively prolong the oil change period, and achieves better technical effects. The vacuum pump oil composition has excellent anti-emulsifying capacity and rust resistance.
Description
Technical Field
The invention belongs to the technical field of petroleum and petrochemical industry, and particularly relates to a mineral oil type vacuum pump oil composition, a preparation method and application thereof.
Background
Vacuum technology is permeated in various industries of national economy and is widely applied to the fields of metallurgy, coating, petrochemical industry, aerospace, scientific research and the like. The vacuum pump oil is special lubricating oil for the mechanical vacuum pump and plays roles of lubrication, sealing and cooling in vacuum equipment. In many application fields, there are conditions with more water, such as cold chain, medicinal materials and material processing. More water is pumped into the pump cavity to cause emulsification of the vacuum pump oil, thereby resulting in the effects of high vacuum degree, oil failure and the like.
In patent CN 106433862, "a vacuum pump oil", a vacuum pump oil is disclosed, which uses a plurality of synthetic base oils and a plurality of additives, and has viscosity-temperature characteristics, oxidation stability and antiwear properties. Patent CN112481003a, "100 # high-quality vacuum pump oil and preparation method thereof" discloses a vacuum pump oil which uses 500N base oil to undergo molecular distillation treatment, and then adds antioxidant, phosphate and defoamer, and the vacuum pump oil has good oxidation stability and excellent thermal stability. Both do not exhibit the anti-emulsifying and anti-rust properties of vacuum pump oils.
Therefore, there is a need to develop a mineral oil type vacuum pump oil excellent in anti-emulsifying ability and rust preventing property.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a mineral oil type vacuum pump oil composition, a preparation method and application thereof.
In a first aspect, the invention provides a mineral oil type vacuum pump oil composition, which comprises the following components in percentage by weight:
as a specific embodiment of the present invention, the antioxidant includes at least one of 2, 6-di-t-butyl-p-cresol, alkylated diphenylamine (CAS: 68921-45-9), phenyl-alpha-naphthylamine. Examples of antioxidants suitable for use in the present invention include, but are not limited to: antioxidant T501 and antioxidant T531.
As a specific embodiment of the invention, the metal passivating agent comprises at least one of indole derivatives, benzotriazole derivatives and thiadiazole derivatives. Examples of metal deactivators suitable for use in the present invention include, but are not limited to: metal deactivator T551 and metal deactivator T552. It is considered that the metal deactivator can form chelate with metal ions or form a protective film on the surface of metal, inhibit the catalytic action of metal or its ions on the oxidation process, and can also function as copper corrosion inhibitor, antiwear agent and antirust agent.
As a specific embodiment of the present invention, the rust inhibitor includes at least one of alkenyl succinic acid, alkenyl succinic acid ester, a complex of an amino acid derivative and an amine, or an alkenyl succinic acid amide derivative. Examples of rust inhibitors suitable for use in the present invention include, but are not limited to: rust inhibitor T746, rust inhibitor T747, rust inhibitor K1031, and rust inhibitor RC4802. It is considered that the rust preventive molecules of the rust preventive form an adsorptive protective film on the metal surface, have a solubilization effect on water and polar substances, and can displace water on the metal surface to perform a dehydration effect.
As a specific embodiment of the present invention, the demulsifier comprises one of an amine and epoxide condensate or polyether. Examples of demulsifiers suitable for use in the present invention include, but are not limited to: demulsifier T1001 or demulsifier LZ5957. It is believed that the demulsifier can increase the interfacial tension between oil and water, so that the stable emulsion becomes a thermodynamically unstable state, and the emulsion is destroyed, thereby achieving the purpose of oil-water separation.
As a specific embodiment of the present invention, the rust inhibitor is selected from one or more of RC4801 and T746, and/or the demulsifier is selected from one or more of LZ5957 and T1001. The inventors of the present application have found that the mineral vacuum pump oil compositions of the present invention have improved anti-emulsifying properties when used in combination with demulsifiers using rust inhibitors RC4801 and/or T746. For example, in some preferred embodiments, the rust inhibitor is T746, and/or the demulsifier is T1001.
As a specific embodiment of the present invention, the anti-foaming agent includes at least one of polysiloxane and polyacrylate. For example, an antifoam agent commercially available from BASF, germany under the trade name AMH2 may be used.
As a specific embodiment of the present invention, the base oil is an API I paraffinic base oil, for example, base oil HVI Ib500.
According to the invention, the demulsifier and the antirust agent with proper proportions are added into the API I paraffin-based base oil, so that the demulsifier can increase the interfacial tension between oil and water in the use process of the oil, and the oil-water separation effect is achieved; the polar groups in the antirust agent have stronger adsorption force on the metal surface, a compact protective layer is formed on the metal surface, and the corrosive medium is prevented from contacting the metal, so that the antirust effect is achieved; meanwhile, the metal passivating agent is added to form chelate with metal ions or form a protective film on the surface of the metal, so that the metal passivating agent not only inhibits the catalytic action of the metal or the ions thereof on the oxidation process, but also serves as an effective antioxidant, and simultaneously plays roles of a copper corrosion inhibitor and an antiwear agent and further enhances the rust prevention effect.
The above-mentioned raw materials in the present invention are all self-made or commercially available, and the present invention is not particularly limited thereto.
In a second aspect, the present invention provides a method for preparing the mineral oil type vacuum pump oil composition, comprising: mixing various additives with base oil, and filtering to obtain the turbine oil composition.
As a specific embodiment of the invention, the mixing mode is heating and stirring; the temperature of the heating and stirring is preferably 55-60 ℃ and the time is preferably 1-2.5 h.
In a third aspect, the invention provides the use of said mineral oil vacuum pump oil composition in the field of sealing or lubrication of mechanical vacuum pumps, in particular mechanical vacuum pumps requiring a low vacuum degree.
As a specific embodiment of the invention, the mineral oil type vacuum pump oil composition is applied to the sealing and lubricating fields of mechanical vacuum pumps with medium and low vacuum degree requirements, and is particularly suitable for application occasions with requirements on demulsification; such as a more water condition.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the demulsifier, the antirust agent and the like with proper proportions are added into the vacuum pump oil composition, so that the demulsifier can increase the interfacial tension between oil and water in the use process of the oil product, and the oil-water separation effect is achieved; the polar groups in the antirust agent have stronger adsorption force on the metal surface, and a tight protective layer is formed on the metal surface to prevent the corrosive medium from contacting with the metal, thereby playing an antirust role.
2. As can be seen from the examples, the mineral oil type vacuum pump oil of the present invention has excellent anti-emulsifying property and excellent rust preventing property.
3. The preparation method of the invention is simple and easy to operate, and is suitable for wide popularization.
Detailed Description
The invention is further illustrated below in connection with specific examples, which are not to be construed as limiting the invention in any way.
In the examples and comparative examples of the present invention, the following information was obtained on the reagents used:
antioxidant T501,2, 6-di-tert-butyl-p-cresol, a company of fine chemical industry, inc. of Meisha;
antioxidant T531, N-phenyl-alpha-naphthylamine, dan Yang Tianyu petroleum additive plant;
metal deactivator T551, N, N-dibutylaminomethylene-alkylbenzene triazole, beijing xing Pu fine chemical engineering development company;
metal deactivator T552, benzotriazole, aldehyde and amine condensate, a petrochemical plant in the great wall;
rust inhibitor K1031, a complex of an amino acid derivative and an amine, king company, U.S.;
rust inhibitor T746, dodecenyl succinic acid, tin-free south petroleum additive limited;
rust inhibitor RC4802, alkenyl succinic acid half ester derivative, rhena chemical company, germany;
rust inhibitor RC4801, an alkenyl succinic half ester derivative, rhena chemical company, germany;
demulsifier LZ5957, polyether, lubo company, usa;
demulsifier T1001, amine and epoxide condensate, south kyphosis bright oil additives inc;
an antifoam AMH2, polyacrylate, BASF, germany;
API class I paraffinic base oil, HVI Ib500;
in each example and comparative example of the present invention, the test means information is as follows:
kinematic viscosity, GB/T265 petroleum product kinematic viscosity measurement method and dynamic viscosity calculation method, and a Cannon company CAV2100 full-automatic kinematic viscosity measurement instrument.
An emulsion breaking performance tester for KR-2 petroleum and synthetic liquid of scientific instrument Co.Ltd in Shanghai field.
Liquid phase rust, GB/T11143 anti-rust performance test method for mineral oil with inhibitor in the presence of water, RLP-6 liquid phase rust tester of Shanghai efficient German instruments Co.
And (3) testing rotary oxygen bomb, measuring the oxidation stability of SH/T0193 lubricating oil, and carrying out a rotary oxygen bomb method and a Changsha Fulan experiment analysis instrument Co.
Example 1
The embodiment provides a mineral oil type vacuum pump oil composition and a preparation method thereof, and the specific details are as follows:
the preparation raw material components comprise:
an antioxidant: 0.2 part of T501 and 0.15 part of T531;
metal passivating agent: 0.03 parts of T552;
rust inhibitor: 0.3 parts of RC4801;
demulsifier: 0.01 parts of LZ5957;
anti-foaming agent: 0.01 part of AMH2;
the balance of base oil to 100 parts, wherein the base oil is API type I paraffin base oil HVI Ib500.
The preparation method comprises the following steps: mixing the antioxidant, the metal passivator, the antirust agent, the demulsifier and the anti-foaming agent with base oil, heating to 57 ℃, heating and stirring for 2.5 hours, and filtering to obtain the mineral vacuum pump oil composition.
Example 2
The embodiment provides a mineral oil type vacuum pump oil composition and a preparation method thereof, and the specific details are as follows:
the preparation raw material components comprise:
an antioxidant: 0.2 part of T501 and 0.15 part of T531;
metal passivating agent: 0.03 parts of T552;
rust inhibitor: 0.3 parts of RC4801;
demulsifier: 0.01 part of T1001;
anti-foaming agent: 0.01 part of AMH2;
the balance of base oil to 100 parts, wherein the base oil is API type I paraffin base oil HVI Ib500.
The preparation method comprises the following steps: mixing the antioxidant, the metal passivator, the antirust agent, the demulsifier and the anti-foaming agent with base oil, heating to 57 ℃, heating and stirring for 2.5 hours, and filtering to obtain the mineral vacuum pump oil composition.
Example 3
The embodiment provides a mineral oil type vacuum pump oil composition and a preparation method thereof, and the specific details are as follows:
the preparation raw material components comprise:
an antioxidant: 0.2 part of T501 and 0.15 part of T531;
metal passivating agent: 0.03 parts of T552;
rust inhibitor: 0.3 parts of T746;
demulsifier: 0.01 part of T1001;
anti-foaming agent: 0.01 part of AMH2;
the balance of base oil to 100 parts, wherein the base oil is API type I paraffin base oil HVI Ib500.
The preparation method comprises the following steps: mixing the antioxidant, the metal passivator, the antirust agent, the demulsifier and the anti-foaming agent with base oil, heating to 57 ℃, heating and stirring for 2.5 hours, and filtering to obtain the mineral vacuum pump oil composition.
Comparative example 1
The comparative example provides a mineral oil type vacuum pump oil composition and a preparation method thereof, and the specific details are as follows:
the preparation raw material components comprise:
an antioxidant: 0.2 part of T501 and 0.15 part of T531;
metal passivating agent: 0.03 parts of T551;
rust inhibitor: 0.3 parts of RC4801;
demulsifier: 0.01 parts of LZ5957;
anti-foaming agent: 0.01 part of AMH2;
the balance of base oil to 100 parts, wherein the base oil is API type I paraffin base oil HVI Ib500.
The preparation method comprises the following steps: mixing the antioxidant, the metal passivator, the rust inhibitor and the anti-foaming agent with base oil, heating to 57 ℃, heating and stirring for 2.5 hours, and filtering to obtain the mineral vacuum pump oil composition.
Comparative example 2
The comparative example provides a mineral oil type vacuum pump oil composition and a preparation method thereof, and the specific details are as follows:
the preparation raw material components comprise:
an antioxidant: 0.2 part of T501 and 0.15 part of T531;
metal passivating agent: 0.03 parts of T552;
rust inhibitor: 0.3 parts of RC4802;
demulsifier: 0.01 parts of LZ5957;
anti-foaming agent: 0.01 part of AMH2;
the balance of base oil to 100 parts, wherein the base oil is API type I paraffin base oil HVI Ib500.
The preparation method comprises the following steps: mixing the antioxidant, the metal deactivator, the demulsifier and the anti-foaming agent with the base oil, heating to 57 ℃, heating and stirring for 2.5 hours, and filtering to obtain the mineral vacuum pump oil composition.
Comparative example 3
The comparative example provides a mineral oil type vacuum pump oil composition and a preparation method thereof, and the specific details are as follows:
the preparation raw material components comprise:
an antioxidant: 0.2 part of T501 and 0.15 part of T531;
metal passivating agent: 0.03 parts of T552;
rust inhibitor: 0.3 parts of K1031;
demulsifier: 0.01 parts of LZ5957;
anti-foaming agent: 0.01 part of AMH2;
the balance of base oil to 100 parts, wherein the base oil is API type I paraffin base oil HVI Ib500.
The preparation method comprises the following steps: mixing the antioxidant, the metal passivator, the rust inhibitor and the anti-foaming agent with base oil, heating to 57 ℃, heating and stirring for 2.5 hours, and filtering to obtain the mineral vacuum pump oil composition.
Comparative example 4
The comparative example provides a mineral oil type vacuum pump oil composition and a preparation method thereof, and the specific details are as follows:
the preparation raw material components comprise:
an antioxidant: 0.2 part of T501 and 0.15 part of T531;
metal passivating agent: 0.03 parts of T552;
rust inhibitor: 0.3 parts of T746;
demulsifier: 0.01 parts of LZ5957;
anti-foaming agent: 0.01 part of AMH2;
the balance of base oil to 100 parts, wherein the base oil is API type I paraffin base oil HVI Ib500.
The preparation method comprises the following steps: mixing the antioxidant, the metal deactivator, the demulsifier and the anti-foaming agent with the base oil, heating to 57 ℃, heating and stirring for 2.5 hours, and filtering to obtain the mineral vacuum pump oil composition.
TABLE 1 mineral oil vacuum Pump oil composition components, corresponding parts by weight
Mineral type vacuum pump oil compositions prepared in examples 1 to 3 and comparative examples 1 to 4 were subjected to kinematic viscosity, anti-emulsifying property, liquid phase rust and rotary oxygen bomb test, and the test results are shown in table 2:
table 2 table of test results for examples and comparative examples
As can be seen from Table 2, the mineral type vacuum pump oil compositions obtained in examples 1 to 3 and comparative examples 1 to 4 were consistent in kinematic viscosity because the main component of the vacuum pump oil composition was the same base oil and the ratio was about 99%.
Comparison of comparative example 1 and example 1 shows that the metal passivating agent T552 is more beneficial to improving the oxidation stability of oil products than T551; comparison of comparative examples 2-3 with example 1 shows that rust inhibitors RC4802 and K1031 adversely affect the anti-emulsifying properties of oil products, especially RC4802, probably because both the rust inhibitor and the demulsifier are polar compounds, and the rust inhibitor has an inhibiting effect on the demulsifier; comparison of comparative example 4 with example 3 shows that rust inhibitor T746 and demulsifier T1001 have better compatibility.
In conclusion, the mineral type vacuum pump oil composition has better water separation capability in the use process of oil products by adding demulsifiers, rust inhibitors and the like in proper proportions, can effectively prolong the oil change period, achieves better technical effects, and has excellent anti-emulsifying capability and rust resistance.
It should be noted that the above-described embodiments are only for explaining the present invention and do not constitute any limitation of the present invention. The invention has been described with reference to exemplary embodiments, but it is understood that the words which have been used are words of description and illustration, rather than words of limitation. Modifications may be made to the invention as defined in the appended claims, and the invention may be modified without departing from the scope and spirit of the invention. Although the invention is described herein with reference to particular means, materials and embodiments, the invention is not intended to be limited to the particulars disclosed herein, as the invention extends to all other means and applications which perform the same function.
Claims (10)
1. The mineral oil type vacuum pump oil composition is characterized by comprising the following components in percentage by weight:
the balance being base oil.
2. The vacuum pump oil composition of claim 1, wherein the antioxidant comprises at least one of 2, 6-di-tert-butyl-p-cresol, alkylated diphenylamine, phenyl-a-naphthylamine.
3. The vacuum pump oil composition according to claim 1 or 2, wherein the metal deactivator comprises at least one of indole derivatives, benzotriazole derivatives, thiadiazole derivatives.
4. A vacuum pump oil composition according to any one of claims 1 to 3, wherein the rust inhibitor comprises at least one of alkenyl succinic acid, alkenyl succinate, a complex of an amino acid derivative and an amine, or an alkenyl succinic acid amide derivative.
5. The vacuum pump oil composition of any of claims 1-4, wherein the demulsifier comprises one of an amine and epoxide condensate or a polyether.
6. The vacuum pump oil composition of any of claims 1-5, wherein the anti-foaming agent comprises at least one of a polysiloxane, a polyacrylate.
7. The vacuum pump oil composition of any of claims 1-6, wherein the base oil is an API group I paraffinic base oil.
8. A method of preparing a vacuum pump oil composition according to any one of claims 1 to 7, comprising: mixing an antioxidant, a metal deactivator, an antirust agent, a demulsifier and an anti-foaming agent with base oil, and filtering to obtain the turbine oil composition.
9. The method of claim 8, wherein the mixing is by heating and stirring; the temperature of the heating and stirring is preferably 55-60 ℃ and the time is preferably 1-2.5 h.
10. Use of a vacuum pump oil composition according to any one of claims 1 to 7 or a vacuum pump oil composition obtainable by a method according to any one of claims 8 to 9 in the field of sealing or lubrication of mechanical vacuum pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211065672.1A CN117660088A (en) | 2022-08-31 | 2022-08-31 | Mineral oil type vacuum pump oil composition, and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211065672.1A CN117660088A (en) | 2022-08-31 | 2022-08-31 | Mineral oil type vacuum pump oil composition, and preparation method and application thereof |
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