CN101058762A - Environment-friendly lubricating grease and preparation method thereof - Google Patents
Environment-friendly lubricating grease and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an environment-friend lubricating grease and making method, which comprises the following parts: 15-95% basic oil, 5-85% thickener, 0. 01-5% additive. The making method comprises the following steps: 1. blending the basic oil and thickener; stirring; heating until the thickener is dissolved in the basic oil; insulating 0-8h; 2. heating the composition; stirring; insulating 0-5min; 3. cooling the composition; adding the additive; grinding or cutting. The invention improves the awl-in degree, dripping point, oxidizing stability and environment friendness, which simplifies the technique.
Description
Technical field
The present invention relates to a kind of lubricating grease and preparation method thereof.
Background technology:
In many occasions of grease applications, such as heavy construction and winning equipment, deflecting roller, rail and wheel shaft, agricultural machine etc., may get rid of the fat phenomenon, finally understand contaminated soil, water source and air, destroy the ecotope and the eubiosis.According to document announcement, Germany and Switzerland government order to ban use of the ship of outboard motor or the above outboard motor of 7kw to use mineral generation, and in order to prevent lubricant contamination Bodeness lake, this also is the use Biodegradable lubricant that proposes the earliest.At present, in Europe particularly in Northern Europe, Germany, Switzerland and Austrian environmentally friendly lubricant pay much attention to, and formulated the use of environmental law restriction mineral oil.Europe environmental law regulation, by 2000, it must be biodegradable being used for motorcycle, outboard motor, weeder, sled, chain saw and other double stroke boat engine oil.Except Europe, the North America environmental friendly lubricant has been widely used in hydraulic efficiency system and forestry, and the environmental friendly lubricant of other field also is employed or is in the commerical test.International ocean environment association (IMEC) has augmented the index request of " biodegradability must greater than 67% " on April 1st, 1992 to marine engine oil, and the nonconforming lubricating oil of biodegradability has been inhibited on the boats and ships that travel in river, lake and the ocean and used.The conventional lubrication oil product is being faced with the severe challenge of environmental requirement because biodegradability is poor.
The big petro-chemical corporation of each of industrialization developed country, lubricant manufacturer competitively develop and produce biodegradable lubricant and additive series product, to substitute the mineral lubricating oils of the disadvantageous effect that carbon cycle in the biosphere is produced.Countries in the world lubricating oil and additive company have successively developed the needs that various environmental friendly lubricants satisfy the user, and there is own special-purpose environmental friendly product in some company.It is the eco-friendly lube product of base oil that more external companies also develop with vegetables oil and synthetic fat, and commercialization is as Kluber Bio 42M 112 lubricating grease of Kluber company, Bio grease 00 lubricating grease of Denco Lube company etc.The U.S. makes discharge amount of exhaust gas reduce 20～30% with a kind of plant engine oil of various plants oil mixed preparing, and other performances and traditional machine oil are as broad as long.U.S.'s plan accounted for 1/3 of consumption of lubricating oil total amount with this mixing machine oil in 5 years, and lubricating oil is made with the rapeseed oil of mixed preparing in Britain and Hong Kong, and the friendly lubricating oil of development environment is one of measure that replenishes the petroleum resources shortage.In China, the friendly lubricant of development environment is classified " 95 " brainstorm subject as, and domestic petrochemical industry is studied the research work that research institutions such as total institute, Lanzhou chemical physics institute of the Chinese Academy of Sciences etc. are carrying out environmental friendly lubricant.
WO03/018729A1 discloses does not have toxic biodegradable Lubricating Grease, is to be base oil by cotton seed oil, soya-bean oil, glyceride oil, palmolive oil, linseed oil wet goods, lithium, magnesium, calcium or zinc type stearic acid viscosifying agent, and antioxidant is formulated.US 5595965 discloses a kind of biodegradable Lubricating Grease, is to be base oil by vegetables oil or tri-glyceride, (B1) alkaline earth or alkaline-earth metal and (B2) reactant of alcohol acid or ester be viscosifying agent, and additive is formulated.US 4115282 discloses a kind of composition of biodegradable Lubricating Grease, be by 10%～95% water, plant viscosifying agents such as 0.2%～10% amine soluble in water and basic metal, 1%～50% plant or animal tallow, oil or corresponding glyceryl ester, 0.05%～5% sodium, potassium, oleate, stearate, glycerol etc. are that emulsifying agent is formulated.CN 1393538A discloses a kind of biodegradable lubricating grease, is to be that the acid of 16～20 fat hydroxyls is formulated with amine mixing antioxidant with single lithium soap, amine antioxidants or the phenols of lithium hydroxide reaction generation by Viscotrol C or Viscotrol C and mixing oil, the carbonatoms of rapeseed oil.CN 1504552A discloses a kind of biodegradable lubricating grease, is the kinetic viscosity 100～250mm by 40 ℃
2/ sec is vegetables oil, wilkinite or C
1～C
20Organic acid and calcium hydroxide, calcium oxide, lithium hydroxide or Lithium Oxide 98min the reaction single soap or compound soap, amine antioxidants or the phenols that generate formulated with amine mixing antioxidant.Above-mentioned lubricating grease with biodegradation character, general main is viscosifying agent with lithium soap, calcium soap, compound lithium soap, alkali metal soap etc., add base oil and additive, be mixed with the lubricating grease that applicable various power lubrication needs, but also there is the not high shortcoming of degradation rate in part lubricating grease.The physical and chemical index of conventional grease comprises dropping point (〉=180 ℃), 1/4 Drawing cone in-degree (0.1mm) (〉=55 or≤60), oxidation stability (99 ℃, 100h, 0.76MPa) (≤35MPa) etc.
Summary of the invention:
The objective of the invention is provides a kind of eco-friendly lubricating grease and preparation method thereof in order to solve the existing not high problem of lubricating grease degradation rate.Product of the present invention is guaranteeing to reduce friction, to reduce wearing and tearing, is improving lubricating condition, on the basis of save energy, improving the biological degradation rate of product.A kind of eco-friendly lubricating grease of the present invention comprises the base oil that accounts for lubricating grease weight 15～95% and accounts for the viscosifying agent of lubricating grease weight 5～85%; Also comprise the additive that accounts for lubricating grease weight 0～5%.A kind of eco-friendly lubricating grease optimum ratio of the present invention: base oil accounts for lubricating grease weight 15～94%, and viscosifying agent accounts for lubricating grease weight 6～85%, and additive accounts for lubricating grease weight 0.05～5%.
The step that the present invention prepares a kind of eco-friendly lubricating grease method is as follows: the viscosifying agent that, will account for lubricating grease weight 15～95% base oils and account for lubricating grease weight 5～85% mixes, stirs, is warming up to 50～160 ℃, be dissolved in fully in the base oil to viscosifying agent, be incubated 0～8 hour; Two, the mixture after step 1 is handled is warming up to 180～230 ℃, under 15～60 rev/mins of conditions of low whipping speed, is incubated 0～5 minute; Three, the mixture after step 2 is handled is cooled to 120～50 ℃, adds the additive that accounts for lubricating grease weight 0～5%, promptly obtain eco-friendly lubricating grease after grinding as required or shearing.
Can also in step 1, add 1/5～1/3 base oil that accounts for lubricating grease weight 15～95%, before the step 3 cooling, add remaining base oil again as quenching oil.
The dropping point of lubricating grease of the present invention 〉=238 ℃ can reach 288 ℃; 1/4 Drawing cone in-degree (0.1mm) can reach 64; (99 ℃, 100h 0.76MPa) is 0.052MPa to oxidation stability.
Grease product of the present invention, main is the lubricating grease of viscosifying agent with the titanium soap, it not only possesses the premium properties of conventional grease, and increases on performances such as Drawing cone in-degree, dropping point, oxidation stability, particularly has good environment friendly.Lubricating grease provided by the invention is applicable to industry mechanical means such as agricultural, forestry, boats and ships, building, food and railway, the occasion that requires lubricating grease that environment or the ecosystem are not damaged, and strict lubricant housings such as the lubricant housings that is suitable for of common lubricating grease and Steel Plant.
The existing good conventional physicochemical property of eco-friendly lubricating grease provided by the invention, the environment friendly or the ecological characteristics that have common lubricating grease not have again, even in use leak, can natural degradation be water and carbonic acid gas or other pollution-free materials also as time goes by, for example in 21 days, therefore degradation rate can reach more than 75%, does not pollute the environment and destroys the ecosystem, compliance with environmental protection requirements.Method technology of the present invention is simple.
Embodiment:
Embodiment one: a kind of eco-friendly lubricating grease is by base oil that accounts for lubricating grease weight 15～95% and the viscosifying agent that accounts for lubricating grease weight 5～85% in the present embodiment.
Embodiment two: a kind of eco-friendly lubricating grease of present embodiment has increased the additive that accounts for lubricating grease weight 0～5%.
Embodiment three: a kind of eco-friendly lubricating grease is made up of the base oil that accounts for lubricating grease weight 15～94%, the additive that accounts for the viscosifying agent of lubricating grease weight 6～85% and account for lubricating grease weight 0.05～5% in the present embodiment.
Embodiment four: a kind of eco-friendly lubricating grease is made up of the base oil that accounts for lubricating grease weight 80%, the additive that accounts for the viscosifying agent of lubricating grease weight 18% and account for lubricating grease weight 2% in the present embodiment.
Embodiment five: what present embodiment and embodiment one to four were different is that base oil is vegetables oil, synthetic ester, mineral oil or compounded oil.Other is identical with embodiment one to four.
Embodiment six: vegetables oil is soya-bean oil, modified soyabean oil or rapeseed oil in the present embodiment.Other is identical with embodiment five.
Embodiment seven: synthetic ester is multiple ester, dibasic acid esters or polynary ester in the present embodiment.Other is identical with embodiment five.
Embodiment eight: multiple ester is a hexanodioic acid iso-heptanol ester in the present embodiment, hexanodioic acid isooctyl alcohol ester, hexanodioic acid isononyl alcohol ester, hexanodioic acid isodecyl alcohol ester, nonane diacid isodecyl alcohol ester, nonane diacid isooctyl alcohol ester, sebacic acid iso-heptanol ester, sebacic acid isooctyl alcohol ester, sebacic acid isononyl alcohol ester, sebacic acid isodecyl alcohol ester, hendecane dicarboxylic acid iso-heptanol ester, hendecane dicarboxylic acid isooctyl alcohol ester, hendecane dicarboxylic acid isononyl alcohol ester, hendecane dicarboxylic acid isodecyl alcohol ester, phthalic acid iso-heptanol ester, phthalic acid isooctyl alcohol ester or phthalic acid isodecyl alcohol ester.Other is identical with embodiment seven.
Embodiment nine: dibasic acid esters is binary acid diester, sebate or azelate in the present embodiment.Other is identical with embodiment seven.
Embodiment ten: polynary ester is a neopentyl polyol ester in the present embodiment.Other is identical with embodiment seven.
Embodiment 11: synthetic ester is a binary acid diester in the present embodiment, sebate, azelate, neopentyl polyol ester, hexanodioic acid iso-heptanol ester, hexanodioic acid isooctyl alcohol ester, hexanodioic acid isononyl alcohol ester, nonane diacid isodecyl alcohol ester, nonane diacid isooctyl alcohol ester, sebacic acid iso-heptanol ester, sebacic acid isooctyl alcohol ester, sebacic acid isononyl alcohol ester, sebacic acid isodecyl alcohol ester, hendecane dicarboxylic acid iso-heptanol ester, hendecane dicarboxylic acid isooctyl alcohol ester, hendecane dicarboxylic acid isononyl alcohol ester, hendecane dicarboxylic acid isodecyl alcohol ester, phthalic acid iso-heptanol ester, phthalic acid isooctyl alcohol ester or phthalic acid isodecyl alcohol ester.Other is identical with embodiment five.
Embodiment 12: the present embodiment mineral oil in fluid is No. 32 mineral oil.Other is identical with embodiment five.
Embodiment 13: compounded oil is that soya-bean oil and rapeseed oil, modified soyabean oil and rapeseed oil, soya-bean oil and synthetic ester, modified soyabean oil and synthetic ester, rapeseed oil and synthetic ester, soya-bean oil and mineral oil, modified soyabean oil and mineral oil, rapeseed oil and mineral oil, mineral oil and synthetic ester or mineral oil and vegetables oil are compound by 1: 0.1～1 mass ratio.Other is identical with embodiment five.
The present embodiment mineral oil in fluid is No. 32 mineral oil, and synthetic ester is a binary acid diester, sebate, azelate, neopentyl polyol ester, hexanodioic acid iso-heptanol ester, hexanodioic acid isooctyl alcohol ester, hexanodioic acid isononyl alcohol ester, hexanodioic acid isodecyl alcohol ester, nonane diacid isodecyl alcohol ester, nonane diacid isooctyl alcohol ester, sebacic acid iso-heptanol ester, sebacic acid isooctyl alcohol ester, sebacic acid isononyl alcohol ester, sebacic acid isodecyl alcohol ester, hendecane dicarboxylic acid iso-heptanol ester, hendecane dicarboxylic acid isooctyl alcohol ester, hendecane dicarboxylic acid isononyl alcohol ester, hendecane dicarboxylic acid isodecyl alcohol ester, phthalic acid iso-heptanol ester, phthalic acid isooctyl alcohol ester or phthalic acid isodecyl alcohol ester.
Embodiment 14: what present embodiment and embodiment one to four were different is that viscosifying agent is stearic acid titanium soap, 12-oxystearic acid titanium soap or dimerization oleic acid titanium soap.Other is identical with embodiment one to four.
Titanium soap in the present embodiment is prepared from by titanium-containing materials such as titanium hydroxy acid salt, stearic acid (also available 12-oxystearic acid or dimerization oleic acid), 1～25% multi-hydroxy acid or composite multi-component alcohol acid; Described multi-hydroxy acid is hexanodioic acid or boric acid, and described composite multi-component alcohol acid is that hexanodioic acid and boric acid, sebacic acid and boric acid, nonane diacid and boric acid, Whitfield's ointment and boric acid, phenylformic acid and boric acid, nonane diacid and Whitfield's ointment or sebacic acid and Whitfield's ointment are compound by 1: 0～1: 1 mol ratio.
Embodiment 15: what present embodiment and embodiment one to four were different is that viscosifying agent is a 12-oxystearic acid titanium soap.Other is identical with embodiment one to four.
Embodiment 16: what present embodiment and embodiment one to four were different is that additive is antioxidant, extreme pressure anti-wear additives, rare earth addition and micro-nano additive in the present embodiment.Other is identical with embodiment one to four.
Embodiment 17: antioxidant is one or more the combination in vegetables oil antioxidant, composite plant oil antioxidant, pentanoic, zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate, the phenyl a-naphthylamines in the present embodiment.Other is identical with embodiment 16.
Embodiment 18: the vegetables oil antioxidant is an isoflavones in the present embodiment.Other is identical with embodiment 17.
Embodiment 19: the composite plant oil antioxidant is a di-tert-butyl hydroxy toluene in the present embodiment.Other is identical with embodiment 17.
Embodiment 20: antioxidant is one or more the combination in pentanoic, zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate, the phenyl a-naphthylamines in the present embodiment.Other is identical with embodiment 16.
Embodiment 21: extreme pressure anti-wear additives is molybdenumdisulphide, dialkyl dithiocarbamate etc. in the present embodiment.Other is identical with embodiment 16.
Embodiment 22: present embodiment middle-weight rare earths additive is rare earth metal, rare earth mineral compound or rare earth compounding, and rare earth metal is cerium or lanthanum, and the rare earth mineral compound is LaF
3Or CeF
3, rare earth compounding is salicylic aldehyde two hydrazine malonyl-lanthanum title complexs, dialkyldithiocarbamacompositions rare earth compounding or palmitinic acid rare earth compounding; Micro-nano additive is copper nanoparticle, nano silicon, nano titanium oxide, 0.1～25 micron superfine cupper powder or micron tetrafluoroethylene.Other is identical with embodiment 16.
Embodiment 23: the step that present embodiment prepares a kind of eco-friendly lubricating grease method is as follows: the viscosifying agent that, will account for lubricating grease weight 15～95% base oils and account for lubricating grease weight 5～85% mixes, stirs, is warming up to 50～160 ℃, be dissolved in fully in the base oil to viscosifying agent, be incubated 0～8 hour; Two, the mixture after step 1 is handled is warming up to 180～230 ℃, under 15～60 rev/mins of conditions of low whipping speed, is incubated 0～5 minute; Three, the mixture after step 2 is handled is cooled to 120～50 ℃, adds the additive that accounts for lubricating grease weight 0～5%, promptly obtain eco-friendly lubricating grease after grinding as required or shearing.
Embodiment 24: present embodiment and embodiment 23 are different is to add 1/5～1/3 base oil that accounts for lubricating grease weight 15～95% in step 1, adds remaining base oil again as quenching oil before the step 3 cooling.Other is identical with embodiment 23.
Embodiment 25: lubricating grease is made up of following composition in the present embodiment: the compounded oil that accounts for lubricating grease weight 75.2% is as base oil, and wherein compounded oil is that 1: 0.25 soya-bean oil and mineral oil is formed by mol ratio; The 12-oxystearic acid titanium soap that accounts for lubricating grease weight 23.8% is as viscosifying agent, and wherein 12-oxystearic acid titanium soap is mainly by titanium-containing materials such as titanium hydroxy acid salt, 12-oxystearic acid, boric acid preparation; Account for the di-tert-butyl hydroxy toluene (abbreviating BHT as) of lubricating grease weight 0.5%, the pentanoic that accounts for the isoflavones of lubricating grease weight 0.25% and account for lubricating grease weight 0.25% as additive.The preparation method is as follows for present embodiment lubricating grease: lubricant base and viscosifying agent are mixed, stir, are warming up to 120～160 ℃, be dissolved in the base oil fully to viscosifying agent, be incubated 3 hours, slowly be warming up to 210 ℃ then, be incubated 5 minutes, under 30 rev/mins of conditions of low whipping speed, cooling, add additive, grind and promptly obtain eco-friendly lubricating grease five times.The PERFORMANCE OF GREASES that present embodiment obtains sees Table 1.
Embodiment 26: lubricating grease is made up of following composition in the present embodiment: the compounded oil that accounts for lubricating grease weight 75.2% is as base oil, wherein compounded oil is that 1: 1 soya-bean oil and synthetic ester formed by mol ratio, and synthetic ester is multiple ester, dibasic acid esters or polynary ester; The 12-oxystearic acid titanium soap that accounts for lubricating grease weight 23.8% is as viscosifying agent, and wherein 12-oxystearic acid titanium soap mainly is 1: 0.5 sebacic acid and boric acid preparation by titanium-containing materials, 12-oxystearic acid, mol ratios such as titanium hydroxy acid salt; The isoflavones that accounts for the di-tert-butyl hydroxy toluene (abbreviating BHT as) of lubricating grease weight 0.5% and account for lubricating grease weight 0.5% is as additive.The preparation method is as follows for present embodiment lubricating grease: lubricant base and viscosifying agent are mixed, stir, are warming up to 50～120 ℃, be dissolved in the base oil fully to viscosifying agent, be incubated 6 hours, slowly be warming up to 200 ℃ then, be incubated 5 minutes, under 30 rev/mins of conditions of low whipping speed, cooling, add additive, grind and promptly obtain eco-friendly lubricating grease five times.The PERFORMANCE OF GREASES that present embodiment obtains sees Table 1.
Embodiment 27: lubricating grease is made up of following composition in the present embodiment: the compounded oil that accounts for lubricating grease weight 75.2% is as base oil, and wherein compounded oil is that 1: 0.25 soya-bean oil and rapeseed oil formed by mol ratio; The 12-oxystearic acid titanium soap that accounts for lubricating grease weight 23.8% is as viscosifying agent, and wherein 12-oxystearic acid titanium soap mainly is 1: 0.5 nonane diacid and boric acid preparation by titanium-containing materials, 12-oxystearic acid, mol ratios such as titanium hydroxy acid salt; The isoflavones that accounts for the di-tert-butyl hydroxy toluene (abbreviating BHT as) of lubricating grease weight 0.5% and account for lubricating grease weight 0.5% is as additive.The preparation method is as follows for present embodiment lubricating grease: lubricant base and viscosifying agent are mixed, stir, are warming up to 50～160 ℃, be dissolved in the base oil fully to viscosifying agent, be incubated 2.5 hours, slowly be warming up to 205 ℃ then, be incubated 5 minutes, under 30 rev/mins of conditions of low whipping speed, cooling, add additive, grind and promptly obtain eco-friendly lubricating grease five times.The PERFORMANCE OF GREASES that present embodiment obtains sees Table 1.
Table 1
Weighting method in the table 1 is with reference to CEC L-33-A-82 method, by selecting for use active sludge in the sewage work as thalline, determine that concentration of substrate is 1%, in the mineral salt nutrient solution of 150ml, add the inoculation bacterium of 2ml and the lubricating grease of about 1g, cultivated 21 days down at 25 ℃, characterize the biological degradability of lubricating grease with the consumption of lubricating grease in biodegradation process.Wherein mineral salt solution consists of: the KH of 0.6g/l
2PO
4, 2.0g/l Na
2HPO
4, 0.1g/l MgSO
4, 0.4g/l (NH
4)
2SO
4, 0.3g/l NH
4NO
3, 0.1g/l CaCl
2Trace element with 0.005g/l.
Claims (10)
1, a kind of eco-friendly lubricating grease is characterized in that it comprises base oil that accounts for lubricating grease weight 15～95% and the viscosifying agent that accounts for lubricating grease weight 5～85%.
2, a kind of eco-friendly lubricating grease according to claim 1 is characterized in that it also comprises additive, and additive accounts for 0.01～5% of lubricating grease weight.
3, a kind of eco-friendly lubricating grease according to claim 1 and 2 is characterized in that base oil is vegetables oil, synthetic ester, mineral oil or compounded oil.
4, a kind of eco-friendly lubricating grease according to claim 3 is characterized in that vegetables oil is soya-bean oil, modified soyabean oil or rapeseed oil; Synthetic ester is multiple ester, dibasic acid esters or polyol ester, wherein ester is hexanodioic acid iso-heptanol ester again, hexanodioic acid isooctyl alcohol ester, hexanodioic acid isononyl alcohol ester, hexanodioic acid isodecyl alcohol ester, nonane diacid isodecyl alcohol ester, nonane diacid isooctyl alcohol ester, sebacic acid iso-heptanol ester, sebacic acid isooctyl alcohol ester, sebacic acid isononyl alcohol ester, sebacic acid isodecyl alcohol ester, hendecane dicarboxylic acid iso-heptanol ester, hendecane dicarboxylic acid isooctyl alcohol ester, hendecane dicarboxylic acid isononyl alcohol ester, hendecane dicarboxylic acid isodecyl alcohol ester, phthalic acid iso-heptanol ester, phthalic acid isooctyl alcohol ester or phthalic acid isodecyl alcohol ester, dibasic acid esters is a binary acid diester, sebate or azelate, polyol ester are neopentyl polyol ester; Mineral oil is No. 32 mineral oil; Compounded oil is that soya-bean oil and rapeseed oil, modified soyabean oil and rapeseed oil, soya-bean oil and synthetic ester, modified soyabean oil and synthetic ester, rapeseed oil and synthetic ester, soya-bean oil and mineral oil, modified soyabean oil and mineral oil, rapeseed oil and mineral oil, mineral oil and synthetic ester or mineral oil and vegetables oil are compound by 1: 0.1～1 mass ratio.
5, a kind of eco-friendly lubricating grease according to claim 3 is characterized in that synthetic ester is a binary acid diester, sebate, azelate, neopentyl polyol ester, hexanodioic acid iso-heptanol ester, hexanodioic acid isooctyl alcohol ester, hexanodioic acid isononyl alcohol ester, nonane diacid isodecyl alcohol ester, nonane diacid isooctyl alcohol ester, sebacic acid iso-heptanol ester, sebacic acid isooctyl alcohol ester, sebacic acid isononyl alcohol ester, sebacic acid isodecyl alcohol ester, hendecane dicarboxylic acid iso-heptanol ester, hendecane dicarboxylic acid isooctyl alcohol ester, hendecane dicarboxylic acid isononyl alcohol ester, hendecane dicarboxylic acid isodecyl alcohol ester, phthalic acid iso-heptanol ester, phthalic acid isooctyl alcohol ester or phthalic acid isodecyl alcohol ester.
6, a kind of eco-friendly lubricating grease according to claim 1 and 2 is characterized in that viscosifying agent is stearic acid titanium soap, 12-oxystearic acid titanium soap or dimerization oleic acid titanium soap.
7, a kind of eco-friendly lubricating grease according to claim 1 and 2 is characterized in that viscosifying agent is a 12-oxystearic acid titanium soap.
8, a kind of eco-friendly lubricating grease according to claim 2 is characterized in that additive is antioxidant, extreme pressure anti-wear additives, rare earth addition and micro-nano additive; Antioxidant is one or more the combination in vegetables oil antioxidant, composite plant oil antioxidant, pentanoic, zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate, the phenyl a-naphthylamines, wherein the vegetables oil antioxidant is an isoflavones, and the composite plant oil antioxidant is a di-tert-butyl hydroxy toluene; Extreme pressure anti-wear additives is molybdenumdisulphide or dialkyl dithiocarbamate; Rare earth addition is rare earth metal, rare earth mineral compound or rare earth compounding, and rare earth metal is cerium or lanthanum, and the rare earth mineral compound is LaF
3Or CeF
3, rare earth compounding is salicylic aldehyde two hydrazine malonyl-lanthanum title complexs, dialkyldithiocarbamacompositions rare earth compounding or palmitinic acid rare earth compounding; Micro-nano additive is copper nanoparticle, nano silicon, nano titanium oxide, 0.1～25 micron superfine cupper powder or micron tetrafluoroethylene.
9, a kind of eco-friendly preparation of greases method as claimed in claim 1 or 2, the step that it is characterized in that this method is as follows: the viscosifying agent that, will account for lubricating grease weight 15～95% base oils and account for lubricating grease weight 5～85% mixes, stirs, is warming up to 50～160 ℃, be dissolved in fully in the base oil to viscosifying agent, be incubated 0～8 hour; Two, the mixture after step 1 is handled is warming up to 180～230 ℃, under 15～60 rev/mins of conditions of low whipping speed, is incubated 0～5 minute; Three, the mixture after step 2 is handled is cooled to 120～50 ℃, adds the additive that accounts for lubricating grease weight 0～5%, promptly obtain eco-friendly lubricating grease after grinding as required or shearing.
10, a kind of eco-friendly preparation of greases method according to claim 9, it is characterized in that in step 1, adding 1/5～1/3 base oil that accounts for lubricating grease weight 15～95%, before the step 3 cooling, add remaining base oil again as quenching oil.
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