CN101240216A - Lithium-base lubricating grease composition with low-pressure oil-separating and low-storage oil-separating performance - Google Patents
Lithium-base lubricating grease composition with low-pressure oil-separating and low-storage oil-separating performance Download PDFInfo
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- CN101240216A CN101240216A CNA2008100545756A CN200810054575A CN101240216A CN 101240216 A CN101240216 A CN 101240216A CN A2008100545756 A CNA2008100545756 A CN A2008100545756A CN 200810054575 A CN200810054575 A CN 200810054575A CN 101240216 A CN101240216 A CN 101240216A
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Abstract
The invention relates to a lithium base grease constituent which has low-pressure oil separation performance and low storage oil separation performance, and comprises base oil, thickening agent, solid fillers and additive, wherein the thickening agent are the metal salts which were produced through the reaction between one or more an acid of the C12 to C24 fatty acid and the lithium hydroxide; the grease constituent contents one or more solid packing which come from bentonite, graphite, molybdenum disulfide and silicon dioxide, and the solid packing is in the amount of 0.1 to 15wt percent of the grease constituent. The lithium base grease constituent is compared with the existing lithium base grease: the lithium base grease constituent Not only has good low-pressure oil separation performance and low storage oil separation performance, but also has good shear stability, colloidal stability, good performance and good high-temperature extreme pressure, anti-wear performance, and can be widely used in Bearings, gears and other industrial equipments which have high demands of oil separation performance.
Description
Technical field
The present invention relates to a kind of lubricant material, particularly a kind of lithium-base lubricating grease composition with low pressure branch oil, low storage branch oiliness energy.
Background technology
Lithium soap grease is contemporary modal lubricant product, global output maximum, and purposes is the widest, anti-shearing, additive response is good, just use temperature lower (about 180 ℃ of dropping points); Complex lithium grease adds the recombiner preparation in lithium soap grease, production technique by complexity, change the structure and the form of viscosifying agent, promote the use temperature (280～330 ℃ of dropping points) of lubricant, but existing lubricant product, no matter be lithium soap grease or complex lithium grease, pressure divides oil and stores the branch oiliness can be all not really desirable, along with the rising of temperature and the prolongation of shelf-time, base oil is separated from lubricating grease, cause dry, the hardening of lubricating grease, can not use, and production cost and technical difficulty are also higher.
The lithium-base lubricating grease composition of the disclosed adding recombiner of Chinese patent CN1055384A, CN1252434A is exactly typical complex lithium grease, it comprises base oil, viscosifying agent, recombiner and additive, though have good shear stability, colloid stability and good high-temperature performance, but divide the oiliness energy unsatisfactory, if use the littler base oil of viscosity, the result is poorer, can cause a large amount of oil, early failures of dividing in storage and use.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that exists at above-mentioned existing lithium soap grease, have low pressure and divide oil, the low lithium-base lubricating grease composition that stores branchs oiliness energy and provide a kind of, this lithium-base lubricating grease composition pressure divides oil and stores the branch oiliness can be excellent, has good shear stability, colloid stability, good high-temperature performance and good extreme pressure, abrasion resistance simultaneously again.
The technical solution adopted for the present invention to solve the technical problems is: this have low pressure divide oil, low store branchs oiliness can lithium-base lubricating grease composition forms by base oil, viscosifying agent, solid packing and additive, viscosifying agent uses is the metal-salt that the lipid acid of C12～C24 or one or more monoprotic acid in the hydroxy fatty acid and lithium hydroxide react generation; With whole grease composition is benchmark, contains one or more solid packing 0.1～15wt% from wilkinite, graphite, molybdenumdisulphide, silicon-dioxide in this grease composition.
Lithium-base lubricating grease composition of the present invention, preferred wilkinite of the solid packing of use and silicon-dioxide; With whole grease composition is benchmark, and the preferred 0.5～10wt% of the consumption of solid packing is preferably 1～5wt%.When the consumption of solid packing is less than 0.1wt%, reduces pressure and divide oil and storage to divide the effect of oil not enough; And during greater than 15wt%, reduce pressure and divide oil and store the effect that divides oil and further increase.
Lithium-base lubricating grease composition of the present invention is a benchmark with whole grease composition, contains viscosifying agent 1～15wt%.
Lithium-base lubricating grease composition of the present invention is a benchmark with whole grease composition, uses base oil 75～95wt%; The base oil that uses can be vegetables oil, mineral oil, also can be synthetic oil (for example PAO and ester class oil).
Lithium-base lubricating grease composition of the present invention, the additive that wherein can also further add other property, for example: antioxidant---amine and phenol, extreme-pressure additive---sulfide isobutene and sulfurized fatty, wear preventive additive---phosphoric acid ester and molybdenum dialkyldithiocarbamacompositions, tackifier---polyisobutene and polymethacrylate.
Lithium-base lubricating grease composition preparation method of the present invention may further comprise the steps:
1, gets the part base oil, add the lipid acid of C12～C24 or one or more monoprotic acid in the hydroxy fatty acid, be warming up to 70～99 ℃, the lipid acid of C12～C24 or the monoprotic acid in the hydroxy fatty acid are dissolved, add lithium hydroxide aqueous solution then, the lipid acid of C12～C24 or the monoprotic acid in the hydroxy fatty acid and lithium hydroxide are reacted in base oil generate viscosifying agent---metal-salt;
2, after finishing the reaction that generates viscosifying agent, heat up and dewater to the true solution state, add the rest parts base oil, cooling;
3, add solid packing and other additive that need add, grinding all changes into fat, promptly makes to have low pressure branch oil, the low lithium-base lubricating grease composition that stores branch oiliness energy.
This lithium-base lubricating grease composition with oily, the low storage branch of low pressure branch oiliness energy of the present invention is compared with existing lithium soap grease: not only the pressure branch is oily and storage branch oiliness energy excellence, simultaneously have good shear stability, colloid stability, good high-temperature performance and good extreme pressure, abrasion resistance again, can be widely used on the industrial equipmentss such as bearing that the branch oiliness can have relatively high expectations, gear.
Embodiment
For the present invention is described better, enumerate following example.But scope of the present invention is not limited only to this, and its claimed scope is recorded in the claim of claim.
Embodiment 1
(100 ℃ of kinematic viscosity are 14.00mm with 560g12-oxystearic acid, 4000g mineral base oil
2/ s) join in 10 liters of stills, be warming up to 70～99 ℃, stirred 20 minutes, the 12-oxystearic acid is dissolved, then the dissolving of 84g lithium hydroxide is added, reaction 1h, finishing the intensification of reaction back dewaters to the true solution state, add rest parts base oil 5000g, cooling adds additive pentanoic 50g again, solid packing wilkinite 50g, graphite 160g, silicon-dioxide 200g, other additive T202 (200g), T405 (200g), T321 (100g) all changes into fat after three beaming rollers grind, and promptly makes to have low pressure and divide oil, the low lithium-base lubricating grease composition that divides the oiliness energy that stores.The lithium-base lubricating grease composition performance index that make see Table 1.
Embodiment 2
(100 ℃ of kinematic viscosity are 14.00mm with 400g12-oxystearic acid, 4000g mineral base oil
2/ s) join in 10 liters of stills, be warming up to 70～99 ℃, stirred 20 minutes, the 12-oxystearic acid is dissolved, then the dissolving of 60g lithium hydroxide is added, reaction 1h, finishing the intensification of reaction back dewaters to the true solution state, add rest parts base oil 5000g, cooling adds additive pentanoic 50g again, solid packing wilkinite 160g, silicon-dioxide (A) 200g, other additive T202 (200g), TCP (200g) after the grinding of three beaming rollers all changes into fat, promptly make the lithium-base lubricating grease composition that has low pressure branch oil, hangs down storage branch oiliness energy.The lithium-base lubricating grease composition performance index that make see Table 1.
Table 1
| Test subject | Embodiment 1 | Embodiment 2 | Experimental technique |
| The Drawing cone in-degree, the 0.1mm dropping point, ℃ corrosion (100 ℃, 24h, T 2Cu) water pouring (79 ℃, 1h), loss amount, % abrasion resistance, mm | 220 205 qualified 0.025 0.44 | 273 193 qualified 0.030 0.48 | GB/T269 GB/T3498 GB/T7326 second SH/T0109 SH/T 0204 |
| Pressure divides oil | 10 | 15 | GB/T392 |
Claims (9)
1, a kind of lithium-base lubricating grease composition with low pressure branch oil, low storage branch oiliness energy, it is characterized in that: it is made up of base oil, viscosifying agent, solid packing and additive, and what viscosifying agent used is the metal-salt of the lipid acid of C12～C24 or one or more monoprotic acid in the hydroxy fatty acid and lithium hydroxide reaction generation; With whole grease composition is benchmark, contains one or more solid packing 0.1～15wt% from wilkinite, graphite, molybdenumdisulphide, silicon-dioxide in this grease composition.
2, the lithium-base lubricating grease composition with low pressure branch oil, low storage branch oiliness energy according to claim 1, it is characterized in that: what solid packing was selected for use is wilkinite and silicon-dioxide.
3, the lithium-base lubricating grease composition with low pressure branch oil, low storage branch oiliness energy according to claim 1 and 2, it is characterized in that: with whole grease composition is benchmark, and the consumption of solid packing is 0.5～10wt%.
4, the lithium-base lubricating grease composition with low pressure branch oil, low storage branch oiliness energy according to claim 3, it is characterized in that: with whole grease composition is benchmark, and the consumption of solid packing is 1～5wt%.
5, the lithium-base lubricating grease composition with low pressure branch oil, low storage branch oiliness energy according to claim 1, it is characterized in that: with whole grease composition is benchmark, contains viscosifying agent 1～15wt%.
6, the lithium-base lubricating grease composition with low pressure branch oil, low storage branch oiliness energy according to claim 1, it is characterized in that: with whole grease composition is benchmark, contains base oil 75～95wt%.
7, according to claim 1 or 6 described lithium-base lubricating grease compositions with low pressure branch oil, low storage branch oiliness energy, it is characterized in that: the base oil of use is vegetables oil, mineral oil or synthetic oil.
8, the lithium-base lubricating grease composition with low pressure branch oil, low storage branch oiliness energy according to claim 1 is characterized in that: the wherein all right additive that further adds other property.
9, a kind of described method with lithium-base lubricating grease composition of low pressure branch oil, low storage branch oiliness energy of claim 1 for preparing is characterized in that:
(1), gets the part base oil, add the lipid acid of C12～C24 or one or more monoprotic acid in the hydroxy fatty acid, be warming up to 70～99 ℃, the lipid acid of C12～C24 or the monoprotic acid in the hydroxy fatty acid are dissolved, add lithium hydroxide aqueous solution then, the lipid acid of C12～C24 or the monoprotic acid in the hydroxy fatty acid and lithium hydroxide are reacted in base oil generate viscosifying agent---metal-salt;
(2), after finishing the reaction that generates viscosifying agent, heat up and dewater to the true solution state, add the rest parts base oil, cooling;
(3), add solid packing and other additive that need add, grind and all change into fat, promptly make and have low pressure and divide oil, the low lithium-base lubricating grease composition that stores branchs oiliness energy.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100545756A CN101240216A (en) | 2008-02-29 | 2008-02-29 | Lithium-base lubricating grease composition with low-pressure oil-separating and low-storage oil-separating performance |
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| CNA2008100545756A CN101240216A (en) | 2008-02-29 | 2008-02-29 | Lithium-base lubricating grease composition with low-pressure oil-separating and low-storage oil-separating performance |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102047A (en) * | 2009-12-18 | 2011-06-22 | 益田润石（北京）化工有限公司 | Preparation method of protective lubricating grease for high-temperature-resistant steel wire rope |
| CN102433192A (en) * | 2011-10-20 | 2012-05-02 | 中国石油化工股份有限公司 | Leakage-proof speed reducer lubricating grease composition and preparation method thereof |
| CN102433195A (en) * | 2011-10-24 | 2012-05-02 | 中国石油化工股份有限公司 | Open gear lubricating grease composition |
| CN103333726A (en) * | 2013-07-25 | 2013-10-02 | 中国石油化工股份有限公司 | Lithium base grease and preparation method thereof |
| CN103805316A (en) * | 2012-11-14 | 2014-05-21 | 无锡市飞天油脂有限公司 | Formula of motor lubricating grease |
| CN104449987A (en) * | 2014-10-29 | 2015-03-25 | 任新年 | Electric hammer gas cylinder lubricating grease and preparation method thereof |
| CN105331424A (en) * | 2015-12-01 | 2016-02-17 | 黄河科技学院 | Lithium-based lubricating grease containing nano-particles and preparation method thereof |
| CN108085113A (en) * | 2017-12-25 | 2018-05-29 | 陈益德 | A kind of Novel material lubricant |
| CN108467763A (en) * | 2018-01-23 | 2018-08-31 | 江苏大学 | A kind of preparation method of graphene-containing lithium base grease |
| CN108559599A (en) * | 2018-05-31 | 2018-09-21 | 江苏大学 | A kind of preparation method of the complex lithium grease containing Nanometer Copper |
| CN109233980A (en) * | 2017-07-10 | 2019-01-18 | 中国石油化工股份有限公司 | lubricating grease and preparation method thereof |
| CN109439421A (en) * | 2018-12-05 | 2019-03-08 | 安徽中天石化股份有限公司 | A kind of heavy load bearing grease and preparation method thereof |
| CN113403123A (en) * | 2021-05-28 | 2021-09-17 | 中国石油化工股份有限公司 | Open gear lubricating grease and preparation method thereof |
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2008
- 2008-02-29 CN CNA2008100545756A patent/CN101240216A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102047A (en) * | 2009-12-18 | 2011-06-22 | 益田润石（北京）化工有限公司 | Preparation method of protective lubricating grease for high-temperature-resistant steel wire rope |
| CN102433192A (en) * | 2011-10-20 | 2012-05-02 | 中国石油化工股份有限公司 | Leakage-proof speed reducer lubricating grease composition and preparation method thereof |
| CN102433195A (en) * | 2011-10-24 | 2012-05-02 | 中国石油化工股份有限公司 | Open gear lubricating grease composition |
| CN102433195B (en) * | 2011-10-24 | 2013-07-17 | 中国石油化工股份有限公司 | Open gear lubricating grease composition |
| CN103805316A (en) * | 2012-11-14 | 2014-05-21 | 无锡市飞天油脂有限公司 | Formula of motor lubricating grease |
| CN103333726A (en) * | 2013-07-25 | 2013-10-02 | 中国石油化工股份有限公司 | Lithium base grease and preparation method thereof |
| CN103333726B (en) * | 2013-07-25 | 2015-07-08 | 中国石油化工股份有限公司 | Lithium base grease and preparation method thereof |
| CN104449987A (en) * | 2014-10-29 | 2015-03-25 | 任新年 | Electric hammer gas cylinder lubricating grease and preparation method thereof |
| CN105331424A (en) * | 2015-12-01 | 2016-02-17 | 黄河科技学院 | Lithium-based lubricating grease containing nano-particles and preparation method thereof |
| CN105331424B (en) * | 2015-12-01 | 2019-01-25 | 黄河科技学院 | Lithium base grease and preparation method thereof containing nano particle |
| CN109233980A (en) * | 2017-07-10 | 2019-01-18 | 中国石油化工股份有限公司 | lubricating grease and preparation method thereof |
| CN109233980B (en) * | 2017-07-10 | 2022-01-04 | 中国石油化工股份有限公司 | Lubricating grease and preparation method thereof |
| CN108085113A (en) * | 2017-12-25 | 2018-05-29 | 陈益德 | A kind of Novel material lubricant |
| CN108467763A (en) * | 2018-01-23 | 2018-08-31 | 江苏大学 | A kind of preparation method of graphene-containing lithium base grease |
| CN108559599A (en) * | 2018-05-31 | 2018-09-21 | 江苏大学 | A kind of preparation method of the complex lithium grease containing Nanometer Copper |
| CN109439421A (en) * | 2018-12-05 | 2019-03-08 | 安徽中天石化股份有限公司 | A kind of heavy load bearing grease and preparation method thereof |
| CN113403123A (en) * | 2021-05-28 | 2021-09-17 | 中国石油化工股份有限公司 | Open gear lubricating grease and preparation method thereof |
| CN113403123B (en) * | 2021-05-28 | 2022-12-16 | 中国石油化工股份有限公司 | Open gear lubricating grease and preparation method thereof |
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