CN109161427A - A kind of preparation method of high temperature resistant lithium base grease - Google Patents
A kind of preparation method of high temperature resistant lithium base grease Download PDFInfo
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- CN109161427A CN109161427A CN201810924120.9A CN201810924120A CN109161427A CN 109161427 A CN109161427 A CN 109161427A CN 201810924120 A CN201810924120 A CN 201810924120A CN 109161427 A CN109161427 A CN 109161427A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/105—Silica
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/2805—Esters used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/02—Unspecified siloxanes; Silicones
- C10M2229/025—Unspecified siloxanes; Silicones used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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Abstract
The present invention relates to petroleum refining technology fields, and disclose a kind of preparation method of high temperature resistant lithium base grease, it is stirred the following steps are included: 1) take 50-70 parts of base oil to pour into reaction kettle, 100 DEG C are maintained the temperature at after being warming up to 100 DEG C under stirring to continue to stir 20min, and above-mentioned material are given over to spare.The preparation method of the high temperature resistant lithium base grease, by adding SiO 2 powder, the fusing point of silica is very high, generally in 1650 (± 50) DEG C, it is used frequently as refractory material, SiO 2 powder is ground by ultramicro-grinder and is made, it is more uniform with that can be mixed when being mixed for his material, so that the lithium base grease as made from silica just has good high temperature resistance, it has obstructed and has rotated the thermal energy of generation between bearing and spread in lithium base grease, reduce the loss of mechanical equipment, it is conducive to extend the service life of mechanical equipment, to improve the service performance of lithium base grease, enhance the competitiveness of enterprise.
Description
Technical field
The present invention relates to petroleum refining technology field, specially a kind of preparation method of high temperature resistant lithium base grease.
Background technique
Lubricating grease is the grease-like semisolid of stiff, for mechanical friction part, plays lubrication and sealing function, is also used for
Metal surface is played filling gap and anti-rust action, is mainly modulated by mineral oil (or synthetic lubricant fluid) and thickening agent.
Lithium base grease is by natural acid (stearic acid or 12- hydroxy stearic acid) lithium soap and to be thickened moderately viscous mine
Object lubricating oil or synthetic lubricant fluid are made, and lithium base grease just becomes more after added with antioxidant, antirust agent and extreme pressure agent
Long-life general-purpose grease is imitated, can replace calcium-base grease and sodium base grease, for aircraft, automobile, tank, lathe and each
The bearing lubrication of kind mechanical equipment is one of maximum lubricating grease kind of dosage in current global lubricating grease, as lithium base lubricates
The continuous increase of rouge demand, what the quality of lithium base grease also required is increasingly stringenter.
Such as a kind of double complex lithium greases disclosed in 104312665 A of Chinese patent CN and preparation method thereof, it should
Preparation process takes full advantage of the functional group in lithium base grease molecule, while saving a composite construction again in the molecule
A composite construction is increased, the capability and performance of complex lithium grease is improved, while reducing soap part of lithium base grease,
Production cost is reduced, but it is poor according to the high temperature resistance of lithium base grease obtained in the invention, so that lithium base lubricates
Rouge is in the bearing lubrication for various mechanical equipments in use, the thermal energy for rotating generation between bearing obtains in lithium base grease
Diffusion is unfavorable for saving the service life of mechanical equipment so that the loss of mechanical equipment increases, so propose a kind of high temperature resistant lithium
The preparation method of base grease is set forth above to solve the problems, such as.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of preparation method of high temperature resistant lithium base grease, have resistance to
The advantages of high temperature, the high temperature resistance for solving existing lithium base grease is poor, so that lithium base grease is being used for various machines
The bearing lubrication of tool equipment is in use, the thermal energy for rotating generation between bearing is spread in lithium base grease, so that mechanical
The loss of equipment increases, and is unfavorable for the problem of saving the service life of mechanical equipment.
(2) technical solution
To realize above-mentioned purpose resistant to high temperature, the invention provides the following technical scheme: a kind of high temperature resistant lithium base grease
Preparation method, comprising the following steps:
1) it takes 50-70 parts of base oil to pour into reaction kettle to be stirred, temperature is kept after 100 DEG C are warming up under stirring
Degree continues to stir 20min at 100 DEG C, and above-mentioned material is given over to spare；
2) 5-8 parts of lithium stearate, 7-15 parts of lithium hydroxide, 0.5-2 parts of extreme pressure anti-wear additives and nanometer calcium carbonate 1-3 are successively taken
Heating stirring is carried out with material obtained in step 1) in part addition reaction kettle, is kept after 140 DEG C are warming up under stirring
Temperature is in 140 DEG C of 0.1-0.5 parts of addition 1,2,3- benzotriazole, 0.5-2 parts of alkyl-thio-phosphate and chlorine bromo alkyl phosphorus
0.5-2 parts of acid esters are continued to stir 20min, are then stopped stirred autoclave and are continuously heating to 170 DEG C, and keep heating 1h, then into
Row circulating cooling gives over to above-mentioned material spare to 125 DEG C；
3) material obtained in step 2) is sheared into 35min under the pressure of 0.8MPa, so that the temperature of reaction kettle declines
To 90 DEG C, then successively in SiO 2 powder 2-5 parts and antioxidant 0.1-0.2 part addition reaction kettle by negative pressure degasification
High temperature resistant lithium base grease is made.
Preferably, described antioxidant 0.1-0.2 parts are specially 2,6- di-tert-butyl hydroquinone.
Preferably, described extreme pressure anti-wear additives 0.5-2 parts are zinc dialkyl dithiophosphate and dialkyl dithio amino first
One or two kinds of combination in sour antimony.
Preferably, it is made by ultramicro-grinder grinding for described SiO 2 powder 2-5 parts, and 2-5 parts of SiO 2 powder
Diameter between 50-100 mesh.
Preferably, described base oil 50-70 parts can be in mineral base oil, synthesis hydrocarbon base oil, silicone oil and Esters oil etc.
One kind.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of preparation method of high temperature resistant lithium base grease, having following has
Beneficial effect:
1, the preparation method of the high temperature resistant lithium base grease, by adding SiO 2 powder, the fusing point of silica is non-
Chang Gao is used generally in 1650 (± 50) DEG C frequently as refractory material, and SiO 2 powder is ground by ultramicro-grinder and is made,
It is more uniform with that can be mixed when mix for his material so that the lithium base grease as made from silica just have it is good resistance to
High-temperature behavior has obstructed and has rotated the thermal energy of generation between bearing and spread in lithium base grease, reduced the loss of mechanical equipment,
It is conducive to extend the service life of mechanical equipment.
2, the preparation method of the high temperature resistant lithium base grease, by addition lithium stearate, lithium stearate, extreme pressure anti-wear additives and
The greasy property of antioxidant, lithium stearate and lithium stearate is good, can be improved the greasy property of lithium base grease, reduce bearing it
Between frictional rotation, extreme pressure anti-wear additives are a kind of in zinc dialkyl dithiophosphate and antimony dialkyl-dithiocarbamate or two
The combination of kind, the abrasion that can be further reduced between bearing, antioxidant 2,6- di-tert-butyl hydroquinone, it is possible to reduce lithium
The oxidation of base grease, be conducive to raising lithium base grease uses the time, so that the service performance of lithium base grease is improved,
Enhance the competitiveness of enterprise.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
A kind of embodiment one: preparation method of high temperature resistant lithium base grease, comprising the following steps:
1) it takes 50 parts of base oil to pour into reaction kettle to be stirred, 50 parts of base oil can be mineral base oil, synthesis alkyl
One of plinth oil, silicone oil and Esters oil etc., maintain the temperature at 100 DEG C and continue to stir after 100 DEG C are warming up under stirring
20min, and above-mentioned material given over to spare；
2) successively take 5 parts of lithium stearate, 7 parts of lithium hydroxide, 0.5 part of extreme pressure anti-wear additives and 1 part of nanometer calcium carbonate addition anti-
Answer and carry out heating stirring in kettle with material obtained in step 1), 0.5 part of extreme pressure anti-wear additives for zinc dialkyl dithiophosphate and
One or two kinds of combination in antimony dialkyl-dithiocarbamate, maintains the temperature at after 140 DEG C are warming up under stirring
140 DEG C of 0.1 part of addition 1,2,3- benzotriazole, 0.5 part of alkyl-thio-phosphate and 0.5 part of bromo-chloro-alky phosphate continuation
20min is stirred, then stops stirred autoclave and is continuously heating to 170 DEG C, and keeps heating 1h, then carry out circulating cooling to 125
DEG C, and above-mentioned material given over to spare；
3) material obtained in step 2) is sheared into 35min under the pressure of 0.8MPa, so that the temperature of reaction kettle declines
To 90 DEG C, then successively can be prepared by 2 parts of SiO 2 powder and 0.1 part of addition reaction kettle of antioxidant by negative pressure degasification resistance to
High Temperature Lubricating Grease, 0.1 part of antioxidant is specially 2,6- di-tert-butyl hydroquinone, and 2 parts of SiO 2 powder are ground by ultra micro
Grinding machine grinding is made, and 2-5 parts of SiO 2 powder of diameter is 50 mesh.
According to lithium base grease low manufacture cost obtained by above-mentioned formula and technique, and because the formula dosage of preparation is small,
The speed of production is fast, improves the preparation efficiency of lithium base grease, can use as the lubrication between common mechanical equipment bearing.
A kind of embodiment two: preparation method of high temperature resistant lithium base grease, comprising the following steps:
1) it takes 70 parts of base oil to pour into reaction kettle to be stirred, 70 parts of base oil can be mineral base oil, synthesis alkyl
One of plinth oil, silicone oil and Esters oil etc., maintain the temperature at 100 DEG C and continue to stir after 100 DEG C are warming up under stirring
20min, and above-mentioned material given over to spare；
2) 3 parts of 8 parts of lithium stearate, 15 parts of lithium hydroxide, 2 parts of extreme pressure anti-wear additives and nanometer calcium carbonate addition reactions are successively taken
Heating stirring is carried out in kettle with material obtained in step 1), 2 parts of extreme pressure anti-wear additives are zinc dialkyl dithiophosphate and dioxane
One or two kinds of combination in base antimony dithiocarbamate, maintains the temperature at 140 DEG C after 140 DEG C are warming up under stirring
0.5 part of 1,2,3- benzotriazole of addition, 2 parts of alkyl-thio-phosphate and 2 parts of bromo-chloro-alky phosphate continue to stir
Then 20min stops stirred autoclave and is continuously heating to 170 DEG C, and keeps heating 1h, then carry out circulating cooling to 125 DEG C, and
Above-mentioned material is given over to spare；
3) material obtained in step 2) is sheared into 35min under the pressure of 0.8MPa, so that the temperature of reaction kettle declines
To 90 DEG C, then successively can be prepared by 5 parts of SiO 2 powder and 0.2 part of addition reaction kettle of antioxidant by negative pressure degasification resistance to
High Temperature Lubricating Grease, 0.1-0.2 parts of antioxidant are specially 2,6- di-tert-butyl hydroquinone, and 5 parts of SiO 2 powder by surpassing
Micro- grinder grinding is made, and 2-5 parts of SiO 2 powder of diameter is 100 mesh.
The material mixture ratio value chosen according to lithium base grease obtained by above-mentioned formula and technique is moderate, can be improved proportion
Success rate, and the performance of lithium base grease and cost of manufacture are moderate, are suitble to promote production preparation.
A kind of embodiment three: preparation method of high temperature resistant lithium base grease, comprising the following steps:
1) it takes 60 parts of base oil to pour into reaction kettle to be stirred, 60 parts of base oil can be mineral base oil, synthesis alkyl
One of plinth oil, silicone oil and Esters oil etc., maintain the temperature at 100 DEG C and continue to stir after 100 DEG C are warming up under stirring
20min, and above-mentioned material given over to spare；
2) successively take 6.5 parts of lithium stearate, 11 parts of lithium hydroxide, 1.25 parts of extreme pressure anti-wear additives and 2 parts of nanometer calcium carbonate plus
Enter and carry out heating stirring in reaction kettle with material obtained in step 1), 1.25 parts of extreme pressure anti-wear additives are dialkyl dithiophosphoric acid
One or two kinds of combination in zinc and antimony dialkyl-dithiocarbamate keeps temperature after being warming up to 140 DEG C under stirring
Degree is in 140 DEG C of 0.3 part of addition 1,2,3- benzotriazole, 1.25 parts of alkyl-thio-phosphate and bromo-chloro-alky phosphate 1.25
Part continues to stir 20min, then stops stirred autoclave and is continuously heating to 170 DEG C, and keeps heating 1h, then carry out circulating cooling
To 125 DEG C, and above-mentioned material given over to spare；
3) material obtained in step 2) is sheared into 35min under the pressure of 0.8MPa, so that the temperature of reaction kettle declines
To 90 DEG C, then can successively be made in 3.5 parts of SiO 2 powder and 0.15 part of addition reaction kettle of antioxidant by negative pressure degasification
High temperature resistant lithium base grease, 0.15 part of antioxidant is specially 2,6- di-tert-butyl hydroquinone, 3.5 parts of SiO 2 powder by
Ultramicro-grinder grinding is made, and 3.5 parts of SiO 2 powder of diameter is 75 mesh.
It is equal according to the greasy property, high temperature resistance and abrasion resistance of lithium base grease obtained by above-mentioned formula and technique
Rotation that is very excellent, being suitble between the bearing of accurate mechanical equipment, improves the competitiveness of enterprise.
The beneficial effects of the present invention are: the fusing point of silica is very high, generally exists by addition SiO 2 powder
1650 (± 50) DEG C are used frequently as refractory material, and SiO 2 powder is ground by ultramicro-grinder and is made, and are mixed with for his material
What can be mixed when conjunction is more uniform, so that the lithium base grease as made from silica just has good high temperature resistance, resistance
The thermal energy that generation is rotated between bearing is spread in lithium base grease, is reduced the loss of mechanical equipment, is conducive to extend
The service life of mechanical equipment, by addition lithium stearate, lithium stearate, extreme pressure anti-wear additives and antioxidant, lithium stearate and hard
The greasy property of resin acid lithium is good, can be improved the greasy property of lithium base grease, reduces the frictional rotation between bearing, and extreme pressure is anti-
Grinding agent is combination one or two kinds of in zinc dialkyl dithiophosphate and antimony dialkyl-dithiocarbamate, can be further
Reduce the abrasion between bearing, antioxidant 2,6- di-tert-butyl hydroquinone, it is possible to reduce the oxidation of lithium base grease, favorably
Enhance the competitiveness of enterprise to improve the service performance of lithium base grease using the time in raising lithium base grease, solves
Determined existing lithium base grease high temperature resistance it is poor so that lithium base grease for various mechanical equipments bearing profit
It is sliding in use, the thermal energy for rotating generation between bearing is spread in lithium base grease so that the loss of mechanical equipment increases,
It is unfavorable for the problem of saving the service life of mechanical equipment.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of preparation method of high temperature resistant lithium base grease, which comprises the following steps:
1) it takes 50-70 parts of base oil to pour into reaction kettle to be stirred, be maintained the temperature at after 100 DEG C are warming up under stirring
100 DEG C are continued to stir 20min, and above-mentioned material are given over to spare；
2) successively take 5-8 parts of lithium stearate, 7-15 parts of lithium hydroxide, 0.5-2 parts of extreme pressure anti-wear additives and 1-3 parts of nanometer calcium carbonate plus
Enter in reaction kettle and carry out heating stirring with material obtained in step 1), keeps temperature after 140 DEG C are warming up under stirring
In 140 DEG C of 0.1-0.5 parts of addition 1,2,3- benzotriazole, 0.5-2 parts of alkyl-thio-phosphate and bromo-chloro-alky phosphate
0.5-2 parts are continued to stir 20min, are then stopped stirred autoclave and are continuously heating to 170 DEG C, and keep heating 1h, then followed
Ring is cooled to 125 DEG C, and above-mentioned material is given over to spare；
3) material obtained in step 2) is sheared into 35min under the pressure of 0.8MPa, so that the temperature of reaction kettle drops to 90
DEG C, then successively it can be prepared by SiO 2 powder 2-5 parts and antioxidant 0.1-0.2 parts of addition reaction kettle by negative pressure degasification
High temperature resistant lithium base grease.
2. a kind of preparation method of high temperature resistant lithium base grease according to claim 1, it is characterised in that: the antioxidant
0.1-0.2 parts are specially 2,6- di-tert-butyl hydroquinone.
3. a kind of preparation method of high temperature resistant lithium base grease according to claim 1, it is characterised in that: the extreme pressure is anti-
0.5-2 parts of grinding agent are combination one or two kinds of in zinc dialkyl dithiophosphate and antimony dialkyl-dithiocarbamate.
4. a kind of preparation method of high temperature resistant lithium base grease according to claim 1, it is characterised in that: the titanium dioxide
2-5 parts of Si powder is ground by ultramicro-grinder and is made, and 2-5 parts of SiO 2 powder of diameter is between 50-100 mesh.
5. a kind of preparation method of high temperature resistant lithium base grease according to claim 1, it is characterised in that: the base oil
50-70 parts can be one of mineral base oil, synthesis hydrocarbon base oil, silicone oil and Esters oil etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810924120.9A CN109161427A (en) | 2018-08-14 | 2018-08-14 | A kind of preparation method of high temperature resistant lithium base grease |
Applications Claiming Priority (1)
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| CN107760431A (en) * | 2017-10-20 | 2018-03-06 | 安徽中天石化股份有限公司 | A kind of high-performance lithium base grease and preparation method thereof |
| CN108130168A (en) * | 2017-12-28 | 2018-06-08 | 东莞太平洋博高润滑油有限公司 | A kind of high temperature lithium saponify and preparation method thereof |
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| CN107760431A (en) * | 2017-10-20 | 2018-03-06 | 安徽中天石化股份有限公司 | A kind of high-performance lithium base grease and preparation method thereof |
| CN108130168A (en) * | 2017-12-28 | 2018-06-08 | 东莞太平洋博高润滑油有限公司 | A kind of high temperature lithium saponify and preparation method thereof |
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