CN103756764A - Synthesized hydraulic oil and preparation method thereof - Google Patents
Synthesized hydraulic oil and preparation method thereof Download PDFInfo
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- CN103756764A CN103756764A CN201310727360.7A CN201310727360A CN103756764A CN 103756764 A CN103756764 A CN 103756764A CN 201310727360 A CN201310727360 A CN 201310727360A CN 103756764 A CN103756764 A CN 103756764A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000010720 hydraulic oil Substances 0.000 title abstract description 6
- 239000003921 oil Substances 0.000 claims abstract description 71
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 239000000654 additive Substances 0.000 claims abstract description 19
- 230000000996 additive effect Effects 0.000 claims abstract description 19
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 230000003647 oxidation Effects 0.000 claims abstract description 14
- 150000002148 esters Chemical class 0.000 claims abstract description 13
- -1 poly(alkylene diol Chemical class 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 41
- 238000002156 mixing Methods 0.000 claims description 28
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 14
- 239000007866 anti-wear additive Substances 0.000 claims description 8
- 239000003112 inhibitor Substances 0.000 claims description 6
- 239000003995 emulsifying agent Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 229920005682 EO-PO block copolymer Polymers 0.000 claims description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 230000003078 antioxidant effect Effects 0.000 claims description 2
- 229940058344 antitrematodals organophosphorous compound Drugs 0.000 claims description 2
- 150000004982 aromatic amines Chemical class 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 150000002903 organophosphorus compounds Chemical class 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 230000002378 acidificating effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 abstract description 2
- 239000003566 sealing material Substances 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 9
- 239000002199 base oil Substances 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical group C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 238000010907 mechanical stirring Methods 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
The invention relates to the field of synthesized oil and particularly relates to synthesized hydraulic oil and a preparation method thereof. The synthesized hydraulic oil is prepared from following components in percentage by weight: 1.45-6.0% of a composite additive pack, 60-90% of oil-soluble poly(alkylene diol) and the balance of synthesized ester basic oil. The synthesized hydraulic oil has the beneficial effects that the components are reasonable and have suitable viscosity and viscosity-temperature characteristics; the mechanical efficiency and the volume efficiency can be effectively balanced; the thermal oxidation stability is good; acidic substances and oil mud generated by oxidization in a use process can be effectively inhibited; the filtering performance is good and the rigorous demands of a hydraulic system with high precision, small gap and complicated control elements can be met; the requirements on liquid viscosity at a working temperature and a starting temperature of the hydraulic device can also be met; the synthesized hydraulic oil has good compatibility on metal and sealing materials of the hydraulic system, and has good performances including demulsification performance, air releasing performance, wear resistance and the like.
Description
(1) technical field
The present invention relates to synthetic oil field, particularly a kind of synthetic hydraulic fluid and preparation method thereof.
(2) background technology
Hydraulic efficiency oil is the working medium of hydraulic efficiency system, modern hydraulic systems has the features such as component size is little, lightweight, compact construction, hydraulic operation is subject to the impact of hydraulic efficiency oil character, but existing hydraulic efficiency oil thermal oxidation stability, strainability, compatibleness and resistance to abrasion etc. are all poor, can not meet the demand of modern hydraulic systems.
(3) summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides synthetic hydraulic fluid that a kind of component is reasonable, thermal oxidation stability good, strainability is good, compatibleness is good, resistance to abrasion is good and preparation method thereof.
The present invention is achieved through the following technical solutions:
A kind of synthetic hydraulic fluid, comprises that the component of following weight percent is made: composite additive bag 1.45～6.0%, oil soluble polyalkylene glycol 60～90%, surplus is synthetic ester base plinth oil.
Described composite additive bag comprises oxidation inhibitor 0.8～3.0%, rust-preventive agent 0.05～0.5% and extreme pressure anti-wear additives 0.5～1.5%.
Described oxidation inhibitor is ashless aromatic amine oxidation inhibitor or Hinered phenols antioxidant, and resistance of oxidation is strong, can suppress oxidation of lubricating oil, reduces the generation of precipitation, paint film and greasy filth, thereby suppresses the growth of lubricating oil viscosity; Described rust-preventive agent is sulfonate (metal-salt is sodium, calcium, magnesium, zinc, barium etc.), organic amine or heterogeneous ring compound, in metallic surface, dipole and the metallic surface generation electrostatic attraction due to polar molecule forms physical adsorption for it, or the molecule of absorption and the chemisorption that chemically reacts of metal, can form in metallic surface molecule protective layer closely, prevent corrosion; Described extreme pressure anti-wear additives is organic sulfide extreme pressure anti-wear additives or Organophosphorous compounds extreme pressure anti-wear additives, under the condition of metallic surface ability to bear load, play the metallic surface of anti-skidding wearing and tearing, abrade the even effect of sintering.
Described composite additive bag also comprises non-emulsifying agent 0.1～1.0%.
Described non-emulsifying agent is cithrol or ethylene oxide-propylene oxide block copolymer, be adsorbed on oil-water interface, change oil-water boundary tension force, or be adsorbed on emulsifying agent and destroy hydrophile-lyophile balance, make emulsion oily water separation in phase inversion process.
Traditional polyethers base oil, is take oxyethane, propylene oxide, butylene oxide ring and tetrahydrofuran (THF) etc. as raw material, under catalyst action, and the simple linear polymer that open loop homopolymerization or copolymerization make.Oil soluble polyalkylene glycol of the present invention is not traditional oxyethane (EO) and propylene oxide (PO) homopolymerization copolymerized polymer, but by block polymerization, random copolymerization, the oil-soluble polymers that oppositely block makes, have the following advantages: viscosity grade is extensive, viscosity index is high, high temperature performance excellence, oil film strength is high, there is outstanding deposition control and equipment cleaning, be not hydrolyzed, use safety, and in elastomer compatibility, there is outstanding behaviours the aspects such as water absorbability, especially by alkoxylate chemical technology, improved the poor difficult problem of traditional polyethers base oil and other base oil intermiscibilities.Dissolubility polyalkylene glycol also has high biological degradation rate, is a kind of environmental protection base oil of high-quality.
Described synthetic ester base plinth oil is polyol ester basis oil, with the composite use of oil soluble polyalkylene glycol.
The preparation method of this synthetic hydraulic fluid, is characterized in that: comprise the steps:
(1) oil soluble polyalkylene glycol and synthetic ester base plinth oil is mixed, heated and stirred, mixes to obtain mixing oil A at 50～60 ℃ of constant temperature;
(2) in the mixing oil A making to step (1), add composite additive bag, under 50～60 ℃ of conditions of constant temperature, continue to stir 1～2h, make mixing oil B;
(3) mixing oil B step (2) being made filters under 0.1MPa～0.2MPa pressure, obtains limpid transparent synthetic hydraulic fluid.
The beneficial effect of synthetic hydraulic fluid of the present invention and preparation method thereof is: component is reasonable, there is suitable viscosity and viscosity-temperature characteristic, can active balance mechanical efficiency and volumetric efficiency, thermal oxidation stability is good, can effectively restrain the acidic substance and the greasy filth that in use procedure, by oxidation, are produced; Strainability is good, can meet the harsh requirement of the hydraulic efficiency system that precision is high, gap is little, controlling elements is complicated, can also meet hydraulic efficiency plant when working temperature and during start-up temperature for the requirement of liquid viscosity, viscosity-temperature characteristic meets the various needs that different purposes propose; And hydraulic efficiency system metal and sealing material are had to good compatibleness, demulsification resistance, air release property, resistance to abrasion etc. are functional; Owing to adopting the oil soluble polyalkylene glycol base oil of high biological degradation rate, make synthetic hydraulic fluid of the present invention also there is good environmental friendliness characteristic.
(4) embodiment
Below in conjunction with embodiment, the invention will be further described, but the present invention is not limited thereto, and the preparation method in embodiment is conventional preparation method, no longer describes in detail.
Embodiment 1:(is in double centner, as follows)
This composite additive bag, wherein sulfur-bearing 6.74%, phosphorus 3.38%, zinc 3.88%.
The preparation method of this synthetic hydraulic fluid, adopts following steps:
(1) the oil soluble polyalkylene glycol of above-mentioned weight and polyol ester basis oil is pumped into and is in harmonious proportion in Fu with toothed gear pump, heated and stirred, mixes to obtain mixing oil A at 60 ℃ of constant temperature;
(2) in the mixing oil A making to step (1), add the composite additive bag of above-mentioned weight, under 60 ℃ of conditions of constant temperature, continue mechanical stirring 2h, make mixing oil B;
(3) mixing oil B step (2) being made filters, and under 0.2MPa pressure, through the strainer that has filter bag device, filters, and obtains limpid transparent synthetic hydraulic fluid.
Embodiment 2:
This composite additive bag, wherein sulfur-bearing 6.5%, phosphorus 0.7%, nitrogen 3.2%.
The preparation method of this synthetic hydraulic fluid, adopts following steps:
(1) the oil soluble polyalkylene glycol of above-mentioned weight and synthetic ester base plinth oil are pumped into and are in harmonious proportion in Fu with toothed gear pump, heated and stirred, mixes to obtain mixing oil A at 55 ℃ of constant temperature;
(2) in the mixing oil A making to step (1), add the composite additive bag of above-mentioned weight, under 55 ℃ of conditions of constant temperature, continue mechanical stirring 1.5h, make mixing oil B;
(3) mixing oil B step (2) being made filters, and under 0.15MPa pressure, through the strainer that has filter bag device, filters, and obtains limpid transparent synthetic hydraulic fluid.
Embodiment 3:
This composite additive bag, wherein sulfur-bearing 7.5%, phosphorus 3.7%, zinc 7.8%.
The preparation method of this synthetic hydraulic fluid, adopts following steps:
(1) the oil soluble polyalkylene glycol of above-mentioned weight and synthetic ester base plinth oil are pumped into and are in harmonious proportion in Fu with toothed gear pump, heated and stirred, mixes to obtain mixing oil A at 50 ℃ of constant temperature;
(2) in the mixing oil A making to step (1), add the composite additive bag of above-mentioned weight, under 50 ℃ of conditions of constant temperature, continue mechanical stirring 1h, make mixing oil B;
(3) mixing oil B step (2) being made filters, and under 0.1MPa pressure, through the strainer that has filter bag device, filters, and obtains limpid transparent synthetic hydraulic fluid.
Embodiment 4:
This composite additive bag, wherein sulfur-bearing 6.5%, phosphorus 3.0%, zinc 2.7%.
The preparation method of this synthetic hydraulic fluid, adopts following steps:
(1) the oil soluble polyalkylene glycol of above-mentioned weight and synthetic ester base plinth oil are pumped into and are in harmonious proportion in Fu with toothed gear pump, heated and stirred, mixes to obtain mixing oil A at 55 ℃ of constant temperature;
(2) in the mixing oil A making to step (1), add the composite additive bag of above-mentioned weight, under 55 ℃ of conditions of constant temperature, continue mechanical stirring 2h, make mixing oil B;
(3) mixing oil B step (2) being made filters, and under 0.15MPa pressure, through the strainer that has filter bag device, filters, and obtains limpid transparent synthetic hydraulic fluid.
Embodiment 5:
This composite additive bag, wherein sulfur-bearing 9.2%, phosphorus 2.4%, zinc 5.2%.
The preparation method of this synthetic hydraulic fluid, adopts following steps:
(1) the oil soluble polyalkylene glycol of above-mentioned weight and synthetic ester base plinth oil are pumped into and are in harmonious proportion in Fu with toothed gear pump, heated and stirred, mixes to obtain mixing oil A at 60 ℃ of constant temperature;
(2) in the mixing oil A making to step (1), add the composite additive bag of above-mentioned weight, under 60 ℃ of conditions of constant temperature, continue mechanical stirring 1.5h, make mixing oil B;
(3) mixing oil B step (2) being made filters, and under 0.2MPa pressure, through the strainer that has filter bag device, filters, and obtains limpid transparent synthetic hydraulic fluid.
Compared with conventional hydraulic efficiency oil, synthetic hydraulic fluid of the present invention has the following advantages:
A) pour point (experimental technique ASTM D97), the pour point of synthetic hydraulic fluid of the present invention is lower 15～30 ℃ than conventional hydraulic efficiency oil, more adapts to extreme low temperature applied environment;
B) viscosity index (experimental technique ASTM D2270), synthetic hydraulic fluid of the present invention improves 15～30, and viscosity-temperature characteristics can be better, and high-temperature viscosity rate of descent reduces by 15～30%, and high temperature oil film retentivity is better;
C) fastness to wear, adopts micro-tractive force determinator experiment, and synthetic hydraulic fluid fastness to wear of the present invention improves 20% than V class base oil, than IV class base oil, improves 65～85%, is more far superior to mineral oil;
D) deposition is controlled and cleansing performance (experimental technique ASTM D2893B), and synthetic hydraulic fluid of the present invention seldom produces deposition, and acid number variation and viscosity change little, have obvious cleansing performance;
E) hydrolysis stability (experimental technique ASTM D2619), synthetic hydraulic fluid of the present invention is when retaining other IV class and V class synthetic hydraulic fluid performance, improved hydrolysis stability, especially with synthesizing ester hydraulic efficiency oil, compared, hydrolysis stability improves 30～70%;
F) air release property (experimental technique ASTM D3427), the air release value of synthetic hydraulic fluid of the present invention is lower by 70～80% than conventional hydraulic efficiency oil, can greatly reduce the cavitation corrosion of oil product to gear apparatus, slows down oil product aging, extends the work-ing life of oil product;
G) fastness to wear (experimental technique ASTM D6973), synthetic hydraulic fluid of the present invention reduces approximately 86% than the oily wear rate of conventional hydraulic, has significant fastness to wear;
H) supporting capacity (experimental technique DIN51354), the inefficacy rank of synthetic hydraulic fluid of the present invention is than 2～5 grades of the oily improves of conventional hydraulic, and supporting capacity is stronger, under the high sliding velocity of high temperature, can provide better oil film protection to equipment;
I) biological degradability of synthetic hydraulic fluid of the present invention can reach more than 70%, belongs to environmentally friendly product;
J) oxidation stability (experimental technique ASTM D2272), synthetic hydraulic fluid of the present invention improves 70～80% than the synthetic hydraulic fluid of synthetic hydrocarbon, synthetic ester, has effectively extended work-ing life;
K) overlength life cycle, the drain period of synthetic hydraulic fluid of the present invention is 1～5 times of conventional hydraulic oil.
Claims (8)
1. a synthetic hydraulic fluid, is characterized in that: the component that comprises following weight percent is made: composite additive bag 1.45～6.0%, oil soluble polyalkylene glycol 60～90%, surplus is synthetic ester base plinth oil.
2. a kind of synthetic hydraulic fluid according to claim 1, is characterized in that: described composite additive bag comprises oxidation inhibitor 0.8～3.0%, rust-preventive agent 0.05～0.5% and extreme pressure anti-wear additives 0.5～1.5%.
3. a kind of synthetic hydraulic fluid according to claim 2, is characterized in that: described oxidation inhibitor is ashless aromatic amine oxidation inhibitor or Hinered phenols antioxidant; Described rust-preventive agent is sulfonate, organic amine or heterogeneous ring compound; Described extreme pressure anti-wear additives is organic sulfide extreme pressure anti-wear additives or Organophosphorous compounds extreme pressure anti-wear additives.
4. a kind of synthetic hydraulic fluid according to claim 2, is characterized in that: described composite additive bag also comprises non-emulsifying agent 0.1～1.0%.
5. a kind of synthetic hydraulic fluid according to claim 4, is characterized in that: described non-emulsifying agent is cithrol or ethylene oxide-propylene oxide block copolymer.
6. a kind of synthetic hydraulic fluid according to claim 1, is characterized in that: described oil soluble polyalkylene glycol is the oil-soluble polymers making by block polymerization, random copolymerization, reverse block.
7. a kind of synthetic hydraulic fluid according to claim 1, is characterized in that: described synthetic ester base plinth oil is polyol ester basis oil.
8. a preparation method for synthetic hydraulic fluid as claimed in claim 1, is characterized in that: comprise the steps:
(1) oil soluble polyalkylene glycol and synthetic ester base plinth oil is mixed, heated and stirred, mixes to obtain mixing oil A at 50～60 ℃ of constant temperature;
(2) in the mixing oil A making to step (1), add composite additive bag, under 50～60 ℃ of conditions of constant temperature, continue to stir 1～2h, make mixing oil B;
(3) mixing oil B step (2) being made filters under 0.1MPa～0.2MPa pressure, obtains limpid transparent synthetic hydraulic fluid.
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Cited By (7)
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| CN104804818A (en) * | 2015-04-21 | 2015-07-29 | 苏州劲元油压机械有限公司 | Biodegradable environment-friendly hydraulic oil |
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| CN106479648A (en) * | 2016-10-17 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of high viscosity synthetic hydraulic fluid compositionss and its application |
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| WO2021219456A1 (en) * | 2020-04-27 | 2021-11-04 | Klueber Lubrication Muenchen Se & Co. Kg | Lubricant composition and use thereof |
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| CN104232274A (en) * | 2014-10-16 | 2014-12-24 | 中国石油化工股份有限公司 | Hydrodynamic drive oil |
| CN104804818A (en) * | 2015-04-21 | 2015-07-29 | 苏州劲元油压机械有限公司 | Biodegradable environment-friendly hydraulic oil |
| CN105038936A (en) * | 2015-08-27 | 2015-11-11 | 黄进堂 | Antiwear hydraulic oil |
| CN105567377A (en) * | 2015-12-28 | 2016-05-11 | 芜湖市创源新材料有限公司 | Excellent-anti-corrosion-performance synthetic hydraulic oil |
| CN109563261A (en) * | 2016-08-10 | 2019-04-02 | 日油株式会社 | Alkyl epoxy ethane derivative, hair-dressing cosmetics, hydraulic fluid compositions, active energy ray-curable resin composition and oiliness unload makeup material |
| US10995178B2 (en) | 2016-08-10 | 2021-05-04 | Nof Corporation | Alkyloxirane derivative, cosmetic material for hair, hydraulic oil composition, resin composition curable by actinic rays, and oil cleansing agent |
| CN109563261B (en) * | 2016-08-10 | 2021-12-03 | 日油株式会社 | Alkyl ethylene oxide derivative, hair cosmetic, hydraulic oil composition, active energy ray-curable resin composition, and oily makeup remover |
| CN106479648A (en) * | 2016-10-17 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of high viscosity synthetic hydraulic fluid compositionss and its application |
| WO2021219456A1 (en) * | 2020-04-27 | 2021-11-04 | Klueber Lubrication Muenchen Se & Co. Kg | Lubricant composition and use thereof |
| JP2023512001A (en) * | 2020-04-27 | 2023-03-23 | クリューバー リュブリケーション ミュンヘン ソシエタス ヨーロピア ウント コンパニー コマンディートゲゼルシャフト | Lubricant compositions and their uses |
| JP7422886B2 (en) | 2020-04-27 | 2024-01-26 | クリューバー リュブリケーション ミュンヘン ソシエタス ヨーロピア ウント コンパニー コマンディートゲゼルシャフト | Lubricant compositions and their use |
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Denomination of invention: A synthetic hydraulic oil and its preparation method Effective date of registration: 20231031 Granted publication date: 20160817 Pledgee: Yantai financing guarantee Group Co.,Ltd. Pledgor: Yantai Degao Petroleum Co.,Ltd. Registration number: Y2023980063455 |
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