CN106318520A - Lubricating oil composition and preparation method thereof - Google Patents
Lubricating oil composition and preparation method thereof Download PDFInfo
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- CN106318520A CN106318520A CN201510332881.1A CN201510332881A CN106318520A CN 106318520 A CN106318520 A CN 106318520A CN 201510332881 A CN201510332881 A CN 201510332881A CN 106318520 A CN106318520 A CN 106318520A
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Abstract
The invention discloses a lubricating oil composition; with the weight of the lubricating oil composition as the benchmark, the lubricating oil composition contains the following components: 90 to 99.99 wt.% of a lubricating oil base oil, and 0.01 to 10 wt.% of an antioxidant multi-effect additive which is a compound having a structure represented by the formula (I). The invention also provides a preparation method of the lubricating oil composition. The lubricating oil composition has excellent antiwear and anti-oxidation properties.
Description
Technical field
The present invention relates to lubricating oil field, in particular it relates to a kind of lubrication line of oils containing special additive
Compound and preparation method thereof.
Background technology
It is currently known and can effectively play the lube oil additive of antioxidation and mainly include phenols and amine
Compounds.Phenolic compound contains one or more hindered phenol functional group, and aminated compounds then contains one
Individual or multiple nitrogen-atoms, these special functional groups can catch the free radical chemical combination that oxidizing process generates
Thing, thus stop the continuation of oxidizing process to occur.Owing to the working condition of Current mechanical equipment tends to strong,
Often accelerated oxidation speed, shortens the service life of lubricating oil, therefore efficiency and the economy to antioxidant
Property is had higher requirement.
United States Patent (USP) US4824601A reports diphenylamine and the diisobutylene alkaline-earth metal in acid activation
The lower alkylated amines mixture formed of catalyst (earth catalyst) effect, it lubricating oil and other
Oxidation resistance performance excellence in functional fluid.
United States Patent (USP) US2005230664A1 reports the antioxidant 9,10-dihydro of a kind of below general formula
The synthetic method of acridine, it is to use alkylated diphenylamine and aldehydes or ketones to contract under acidic catalyst effect
Close preparation.
Patent CN1191340C uses the tert-butyl group phenols that is obstructed, aldehyde, Carbon bisulfide and dialkylamine to occur
Compound is prepared in condensation, and this compound has stronger seizure free radical and the ability of peroxynitrite decomposition compound,
More effectively protection can be provided to oil oxidation stability, may also function as wear-resistant effect.
Patent US4225450 reports a kind of by tert-butyl group phenols and the alkyl aminodithioformic acid of being obstructed
Polysulfide phenolic antioxidant prepared by reactant salt, has preferable antioxidation and wear-resistant effect.
Summary of the invention
The invention aims to meet the high request of the oxidation resistance to lubricant oil composite, it is provided that
A kind of lubricant oil composite and preparation method thereof.
The present inventor finds under study for action, and lubricant oil composite contains structure shown in formula (I)
Compound:
Lubricant oil composite can be made to have excellent antioxygenic property.
Therefore, to achieve these goals, on the one hand, the invention provides a kind of lubricant oil composite,
On the basis of the weight of lubricant oil composite, described lubricant oil composite contains following components: 90-99.99
The lube base oil of weight %, the antioxygen multipurpose additive of 0.01-10 weight %, described antioxygen multiple-effect adds
Adding agent is the compound of structure shown in formula (I):
Preferably, on the basis of the weight of lubricant oil composite, described lubricant oil composite contains following group
Point: the lube base oil of 96-99.9 weight %, the antioxygen multipurpose additive of 0.1-4 weight %.
On the other hand, the invention provides the preparation method of a kind of lubricant oil composite, described method includes:
Raw material mix homogeneously containing lube base oil and antioxygen multipurpose additive is obtained lubricant oil composite,
Wherein, on the basis of the weight of lubricant oil composite, the consumption of lube base oil is 90-99.99 weight
Amount %, the consumption of antioxygen multipurpose additive is 0.01-10 weight %, and described antioxygen multipurpose additive is formula (I)
The compound of shown structure:
Preferably, on the basis of the weight of lubricant oil composite, the consumption of lube base oil is 96-99.9
Weight %, the consumption of antioxygen multipurpose additive is 0.1-4 weight %.
The lubricant oil composite of the present invention has the antioxygenic property of excellence, can suppress high-temperature oxydation deposit
Generation.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Fig. 1 is the reaction equation of the step (a) preparing antioxygen multipurpose additive.
Fig. 2 is the reaction equation of the step (b) preparing antioxygen multipurpose additive.
Fig. 3 is the reaction equation of the step (c) preparing antioxygen multipurpose additive.
Fig. 4 is the hydrogen spectrum spectrogram of antioxygen multipurpose additive prepared by preparation example.
Fig. 5 is the carbon spectrum spectrogram of antioxygen multipurpose additive prepared by preparation example.
Fig. 6 is the mass spectrogram of antioxygen multipurpose additive prepared by preparation example.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
On the one hand, the invention provides a kind of lubricant oil composite, with the weight of lubricant oil composite as base
Standard, lubricant oil composite contains following components: the lube base oil of 90-99.99 weight %, 0.01-10
The antioxygen multipurpose additive of weight %, described antioxygen multipurpose additive is the compound of structure shown in formula (I):
In the present invention, on the basis of the weight of lubricant oil composite, the content of lube base oil is preferably
95-99.98 weight %, more preferably 96-99.9 weight %；The content of antioxygen multipurpose additive is preferably
0.02-5 weight %, more preferably 0.1-4 weight %.
It is contemplated that realized by compound containing structure shown in formula (I) in lubricant oil composite
Goal of the invention, even if lubricant oil composite has the performances such as excellent antioxidation.Therefore, for lubricating oil
In compositions, the selection of each conventional constituents, the most specifically limits.
In the present invention, lube base oil can be lube base oil commonly used in the art, such as
Can be mineral lubricating oil and/or synthetic lubricant fluid.
Mineral lubricating oil can be from light fraction mineral oil to heavy distillat mineral oil in viscosity, including liquid stone
Alkane, cycloalkanes and the mixing par-affinic-naphthenic types mineral lubricant that wax oil and hydrorefined, solvent processed
Oil, is generally divided into I, II, Group III base oil, and common trade names include I class 150SN, 600SN,
II class 100N, 150N, 350N etc..
Synthetic lubricant fluid can include being polymerized hydrocarbon ils, alkyl benzene and its derivative, the example that polymerization hydrocarbon ils is concrete
Son includes but not limited to polybutene, polypropylene, propylene-isobutylene copolymers, the polybutene of chlorination, poly-(1-
Hexene), poly-(1-octene), poly-(1-decene), common trade names include PAO4, PAO6, PAO8,
PAO10 etc., alkyl benzene and its derivative specific example includes but not limited to detergent alkylate, the tetradecane
Base benzene, dinonyl benzene, two (2-ethylhexyl) benzene, alkyl benzene derivate includes alkylating diphenyl ether
With alkylating diphenyl sulfide and derivant, analog and homologue etc..
Another applicable type of synthetic lubricant fluid can be Esters oil, including dicarboxylic acids (as phthalic acid,
Succinic acid, alkyl succinic acid and alkenyl succinic acid, maleic acid, Azelaic Acid, suberic acid, decanedioic acid, anti-
Butene dioic acid, adipic acid, linoleic acid dimer, malonic acid, alkyl malonic acid, alkenyl malonic) with
Various alcohol (such as butanol, hexanol, dodecyl alcohol, 2-ethylhexyl alcohol, ethylene glycol, propylene glycol) are sent out
The ester of raw condensation reaction generation or complex ester.The object lesson of these esters includes but not limited to adipic acid two fourth
Ester, decanedioic acid two (2-ethylhexyl) ester, the most own ester of fumaric acid acid two, di-n-octyl sebacate, nonyl
Diacid di-isooctyl, two different decayl esters of azelaic acid, dioctyl phthalate, didecyl phthalate,
Decanedioic acid two (larane base) ester, the 2-ethylhexyl diester etc. of linoleic acid dimer.
Another applicable type of synthetic lubricant fluid can be fischer tropsch process synthetic hydrocarbon oil and to this synthesis hydrocarbon
Oil by hydroisomerizing, be hydrocracked, lube base oil that the PROCESS FOR TREATMENT such as dewaxing obtains.
In the present invention, lube base oil preferred viscosities index more than 80, saturated hydrocarbon content is more than 90 weights
Amount %, sulfur content are less than the lube base oil of 0.03 weight %.
The lubricant oil composite of the present invention can also contain antirust agent and/or anti-foaming agent.Antirust agent can select
From imidazoles and/or alkenyl succinic acid esters, preferably 4,5-glyoxalidine, alkenyl imidazoline succinate
With at least one in alkenyl succinic acid ester, such as, can select Jinzhou limited public affairs of safe lube oil additive
T746, T703, T747 that department produces.Anti-foaming agent can select polysiloxane type anti-foaming agent, such as may be used
Think silicone oil and/or polydimethylsiloxane.For antirust agent, anti-foaming agent content without particular/special requirement, can
Thinking the content that this area is conventional, this is known to those skilled in the art, does not repeats them here.
In the present invention, shown in formula (I), the preparation method of the compound of structure preferably includes:
A (), by 2,6-DI-tert-butylphenol compounds, formaldehyde and benzene carry out condensation reaction, generate shown in formula (II)
Intermediate M,
B intermediate M that step (a) is obtained by () contacts with bromide reagent and carries out bromo-reaction, raw
Become the bromination product shown in formula (III),
C bromination product that () makes step (b) obtain contacts with the compound shown in formula (IV) and carries out idol
Connection reaction, generates the antioxidant shown in formula (I),
In step (a) of the present invention, the condition of condensation reaction preferably includes: under an inert atmosphere,
In one solvent, in the presence of the first catalyst, by 2,6-DI-tert-butylphenol compounds, formaldehyde and benzene are at-20-0 DEG C
Rise to 15-30 DEG C after lower reaction 0.5-1.5h, be then heated to 70-80 DEG C of reaction 1-3h.
In the present invention, inert atmosphere can be the inert atmosphere that this area is conventional, such as can by nitrogen,
The gases such as argon provide.
It will be understood by those skilled in the art that to make stable reaction carry out, react at-20-0 DEG C
15-30 DEG C is risen to, it should be to slowly warm up to 15-30 DEG C after 0.5-1.5h, for example, it is possible to will be at-20-0 DEG C
System after lower reaction 0.5-1.5h is placed under the ambient temperature of 15-30 DEG C, makes reaction system self slow
It is warming up to 15-30 DEG C.
In the present invention, the first solvent is preferably selected from methanol, ethanol, DMF and acetonitrile
At least one, more preferably methanol and/or acetonitrile, the most preferably methanol.
In the present invention, the first catalyst can be mineral acid or organic acid, is preferably selected from acetic acid, to methyl
At least one in benzoic acid and benzenesulfonic acid, more preferably acetic acid.
In the present invention, the consumption of 2,6-DI-tert-butylphenol compounds, formaldehyde and benzene is substantially equimolar amounts, but
Formaldehyde and benzene can be suitably excessive.The mol ratio of 2,6 di t butyl phenol, formaldehyde and benzene is preferably
0.9-1.5:0.9-10:0.9-10。
In step (a) of the present invention, the consumption of the first catalyst can be catalytic amount, with 2, and the tertiary fourth of 6-bis-
On the basis of the molal quantity of base phenol, the consumption of the first catalyst is preferably 5-100 mole of %, more preferably
10-30 mole of %.
It will be understood by those skilled in the art that in step (a) of the present invention, purer in order to obtain
Intermediate M, in addition it is also necessary to reacted system is carried out post processing, and the mode of post processing can include subtracting
Pressure removes solvent, then through solvent dilution, wash, be dried, reduce pressure removes solvent again, such as, general is instead
System after should removes solvent at 0.01-0.05MPa, 40-60 DEG C, is subsequently poured into 1-10 times of volume
In ethyl acetate (or dichloromethane), respectively with distilled water and saturated aqueous common salt washing, then at 15-30 DEG C
The desiccant such as lower addition anhydrous calcium chloride or anhydrous sodium sulfate, keep 10-60min.It is filtered to remove dry
After agent, at 0.01-0.05MPa, 40-60 DEG C, remove solvent, to obtain intermediate M.
In step (a) of the present invention, 2,6-DI-tert-butylphenol compounds, formaldehyde and benzene carry out the reaction of condensation reaction
Equation is as it is shown in figure 1, in Fig. 1, the first solvent uses methanol, and the first catalyst uses
Acetic acid, purpose by way of example only, the scope of the present invention is not construed as limiting.
In step (b) of the present invention, the condition of bromo-reaction preferably includes: under an inert atmosphere,
In two solvents, in the presence of the second catalyst, under the conditions of lucifuge, during step (a) is obtained
Mesosome M and bromide reagent react 1-2h at 15-30 DEG C, then use quencher cancellation.
" inert atmosphere " be not as it was previously stated, repeat them here.
It will be understood by those skilled in the art that and more stably carry out, preferably to intermediate to react
M is slowly added to brominated reagent.
In the present invention, the second solvent is preferably selected from oxolane, dichloromethane, chloroform and ether extremely
Few one, more preferably oxolane.
In the present invention, the second catalyst is preferably selected from ammonium nitrate, benzoyl peroxide (BPO) and azo
At least one in bis-isobutyronitrile (AIBN).
In the present invention, bromide reagent is preferably N-bromosuccinimide (NBS) and/or Br2, more excellent
Elect NBS as.
In step (b) of the present invention, carrying out cancellation with quencher, quencher can be commonly used in the art
Quencher, such as, can be saturated aqueous common salt.
In step (b) of the present invention, intermediate M is substantially equimolar amounts with the consumption of bromide reagent,
But bromide reagent typically can be suitably excessive, reaches 1.1-3 times of equivalent of reaction substrate.Intermediate M with
Bromide reagent mol ratio is preferably 0.9-1.2:0.9-3.0.
In step (b) of the present invention, the consumption of the second catalyst can be catalytic amount, with intermediate M's
On the basis of molal quantity, the consumption of the second catalyst is preferably 10-100 mole of %, more preferably 40-60 and rubs
You are %.
In the inventive method step (b), intermediate M contacts with bromide reagent and carries out the anti-of bromo-reaction
Answer equation as in figure 2 it is shown, in Fig. 2, bromide reagent uses NBS, mesh by way of example only
, the scope of the present invention is not construed as limiting.
In step (b) of the present invention, in addition to generating the bromination product shown in formula (III), also trace
The bromination product at ortho position generates, and does not has the bromination product of meta to generate, but the amount of the bromination product at ortho position is very
Pettiness, does not has materially affect to subsequent reactions, is negligible.
It will be understood by those skilled in the art that in step (b) of the present invention, purer in order to obtain
Bromination product, in addition it is also necessary to the system after cancellation is carried out post processing, and the mode of post processing can include water
Wash, be dried, removal of solvent under reduced pressure, such as, by the system distilled water wash after cancellation, then exist
Add the desiccant such as anhydrous calcium chloride or anhydrous sodium sulfate at 15-30 DEG C, keep 10-60min.Filter
After removing desiccant, at 0.01-0.05MPa, 40-60 DEG C, remove solvent, to obtain bromination product.
In step (c) of the present invention, the condition of coupling reaction preferably includes: under an inert atmosphere,
In three solvents, in the presence of the 3rd catalyst, the bromination product that step (b) is obtained and formula (IV)
Shown compound reacts 4-8h at 80-100 DEG C.
" inert atmosphere " be not as it was previously stated, repeat them here.
In the present invention, in order to make stable reaction carry out, preferably it is gradually heating to 80-100 DEG C, then exists
4-8h is reacted at 80-100 DEG C.
In the present invention, the 3rd solvent is preferably selected from dichloromethane, chloroform, toluene and oxolane extremely
Few one, more preferably dichloromethane.
In the present invention, the 3rd catalyst preferably includes palladium salt, part and alkali.Palladium salt is preferably selected from palladium
And/or palladium-dibenzalacetone complex [Pd2(dba)3]；Part is preferably selected from tri-tert phosphorus, dinaphthol
(BINAP) at least one and in double (diphenylphosphino) ferrocene (dppf)；Alkali is preferably selected from uncle
At least one in sodium butoxide, potassium tert-butoxide, cesium carbonate and sodium carbonate.
In step (c) of the present invention, the bromination product that step (b) obtains and the chemical combination shown in formula (IV)
The consumption of thing is substantially equimolar amounts, but the compound shown in formula (IV) can be suitably excessive.Step
B bromination product that () obtains is preferably 0.9-1.5:0.9-2.5 with the mol ratio of the compound shown in formula (IV).
In step (c) of the present invention, the consumption of catalyst can be catalytic amount, with bromination product mole
On the basis of number, the consumption of palladium salt is preferably 5-50 mole of %, more preferably 5-20 mole %, more enters one
Step is preferably 5-10 mole of %；The consumption of part is preferably 5-50 mole of %, more preferably 10-30 mole %；
The consumption of alkali is preferably 5-50 mole of %, more preferably 10-30 mole %.
In step (c) of the present invention, the bromination product that step (b) obtains and the chemical combination shown in formula (IV)
Thing contact carries out the reaction equation of coupling reaction as it is shown on figure 3, in Fig. 3, palladium salt uses acetic acid
Palladium, purpose by way of example only, the scope of the present invention is not construed as limiting.
It will be understood by those skilled in the art that to obtain purer end product, i.e. formula (I)
Shown antioxidant, the inventive method the most also includes reacted system is carried out post processing, post processing
Mode can include filtration, solvent dilution, wash, be dried, removal of solvent under reduced pressure, such as, will be anti-
The filtrate after system filtration after should is poured in the ethyl acetate (or dichloromethane) of 1-10 times of volume,
Then with distilled water wash, at 15-30 DEG C, anhydrous calcium chloride or anhydrous sodium sulfate etc. are then added dry
Drying prescription, keeps 10-60min.After being filtered to remove desiccant, remove at 0.01-0.05MPa, 40-60 DEG C
Remove solvent, to obtain the antioxidant shown in formula (I).
The present invention is prepared each step of the method for the compound of structure shown in formula (I) the most under agitation
Carry out, for mixing speed without particular/special requirement, can be the mixing speed of this area routine, such as, stir
Mixing speed can be 100-800rpm.
In the method for the compound that the present invention prepares structure shown in formula (I), for the first solvent, second
The amount of solvent and the 3rd solvent, without particular/special requirement, can be the solvent load of this area routine, and this is ability
Well known to field technique personnel, do not repeat them here.
As it has been described above, it is contemplated that by lubricant oil composite contains the change of structure shown in formula (I)
Compound and realize goal of the invention, even if lubricant oil composite has the performances such as excellent antioxidation.Therefore,
For the preparation method of lubricant oil composite without particular/special requirement, side commonly used in the art can be used
Method, such as, second aspect, present invention also offers the preparation method of a kind of lubricant oil composite, the party
Method includes: the raw material mix homogeneously containing lube base oil and antioxygen multipurpose additive is obtained lubricating oil
Compositions, wherein, on the basis of the weight of lubricant oil composite, the consumption of lube base oil is
90-99.99 weight %, the consumption of antioxygen multipurpose additive is 0.01-10 weight %, and described antioxygen multiple-effect adds
Adding agent is the compound of structure shown in formula (I):
In the inventive method, it is preferable that on the basis of the weight of lubricant oil composite, lube base oil
Consumption be 95-99.98 weight %, more preferably 96-99.9 weight %；The use of antioxygen multipurpose additive
Amount is 0.02-5 weight %, more preferably 0.1-4 weight %.
As it was previously stated, in the inventive method, raw material can also contain antirust agent and/or anti-foaming agent.
In the inventive method, for the mode of mixing without particular/special requirement, such as can be except lube base
Each raw material components of oil is added separately in lube base oil, it is also possible to each by except lube base oil
Component is mixed and made into concentrate and is then added in lube base oil.
In the inventive method, the condition of mixing preferably includes: temperature is 40-90 DEG C, and the time is 1-6h.
Lube base oil, antioxygen multipurpose additive, antirust agent, anti-foaming agent are as it was previously stated, at this no longer
Repeat.
Embodiment
The present invention is further illustrated for below example, but and is not so limited the present invention.
In the following Examples and Comparative Examples:
The physico-chemical analysis method of product: measure element by inductively coupled plasma ion emission spectroscopy method
Content.
Structure characterization methods: nuclear magnetic resonance method (1H hydrogen is composed,13C carbon is composed), high resolution mass spectrum.
Preparation example
In the 500ml flask with electromagnetic agitation (mixing speed is 200rpm), it is filled with nitrogen protect
Protect, add the methanol of 150ml and the acetic acid of 0.01mol, sufficiently cool in ice-water bath after, then divide
Do not add the 2 of 0.1mol, 6-DI-tert-butylphenol compounds, the formaldehyde of 0.2mol and the benzene of 0.3mol.Reaction 1
Remove ice-water bath after hour, rise to stopped reaction after 25 DEG C of post-heating persistently reflux 2 hours to 75 DEG C,
By reacted system at 0.03MPa, steam solvent at 50 DEG C, be subsequently adding 250ml ethyl acetate,
And proceed in separatory funnel, respectively with 100ml distilled water (twice) and the washing of 50ml saturated aqueous common salt,
And adding 10g anhydrous calcium chloride dry 20min at 25 DEG C, the filtrate after filtration is at 40 DEG C, 0.03MPa
Under solvent is evaporated off, obtain midbody product M1.
In the 500ml flask with electromagnetic agitation (mixing speed is 200rpm), it is filled with nitrogen protect
Protect, add the dry tetrahydrofuran of 150ml, then dissolve in midbody product M1, and add 0.05mol
Ammonium nitrate, under the conditions of lucifuge, be slowly added into 0.1mol brominated reagent NBS.At 25 DEG C, stirring is anti-
Answer 1.5h, then use saturated aqueous common salt cancellation, then wash with 100ml distilled water (twice), and add
Enter 10g anhydrous sodium sulfate at 25 DEG C, be dried 20min.Filtrate after filtration is at 40 DEG C, 0.03MPa
Under solvent is evaporated off, obtain bromination product.
In the 500ml flask with electromagnetic agitation (mixing speed is 200rpm), it is filled with nitrogen protect
Protect, add the dichloromethane of 150ml as solvent, be separately added into above-mentioned bromination product and 0.12mol
Benzotriazole compound, is subsequently added the tri-tert phosphorus of 0.02mol, the sodium tert-butoxide of 0.02mol and
The Pd (OAc) of 0.005mol2.It is gradually heating to 90 DEG C, continuously stirred 6h.Then by reacted body
Filtrate after system filters adds 250ml ethyl acetate, and proceeds in separatory funnel, uses 100ml distilled water
(twice) washing, and add 10g anhydrous sodium sulfate dry 20min at 25 DEG C.Filtrate after filtration
40 DEG C, solvent is evaporated off under 0.03MPa, obtain end product S1.
The physico-chemical analysis data of S1 are as follows: nitrogen content, and 11.2%.
S1 is carried out structural characterization, respectively obtains hydrogen spectrum, carbon spectrum and high resolution mass spec spectrogram, respectively
See Fig. 4, Fig. 5 and Fig. 6.
From the physico-chemical analysis data of above-mentioned preparation example, Fig. 4, Fig. 5 and Fig. 6 it can be seen that S1 has formula
(I) structure shown in.
Embodiment 1
The present embodiment is for lubricant oil composite that the present invention is described and preparation method thereof.
The S1 of 0.1 weight portion joins the 600SN lube base oil of 99.9 weight portions, and (viscosity refers to
Number is 87, and saturated hydrocarbon content is 92 weight %, and sulfur content is 0.02 weight %) in, stir at 60 DEG C
Mixing 3h, mix homogeneously obtains lubricant oil composite A1.
Embodiment 2
The present embodiment is for lubricant oil composite that the present invention is described and preparation method thereof.
The S1 of 2.5 weight portions is joined the PAO10 and the PAO4 of 55.5 weight portions of 42 weight portions
Mixed lubrication oil base oil in, at 40 DEG C stir 6h, mix homogeneously obtains lubricant oil composite A2.
Embodiment 3
The present embodiment is for lubricant oil composite that the present invention is described and preparation method thereof.
The S1 of 2.5 weight portions is joined the Yubase4 and the Yubase6 of 51.5 weight portions of 46 weight portions
Mixed lubrication oil base oil in, at 40 DEG C stir 6h, mix homogeneously obtains lubricant oil composite A3.
Embodiment 4
The present embodiment is for lubricant oil composite that the present invention is described and preparation method thereof.
The S1 of 4 weight portions is joined the 300SN lube base oil (viscosity index (VI) of 96 weight portions
Being 91, saturated hydrocarbon content is 92 weight %, and sulfur content is 0.01 weight %) in, stir at 90 DEG C
1h, mix homogeneously obtains lubricant oil composite A4.
Comparative example 1
Prepare lubricant oil composite according to the method for embodiment 2, except for the difference that, the weight such as S1 is replaced with
The zinc dibutyl dithiocarbamate of amount part, obtains lubricant oil composite D1.
Comparative example 2
Prepare lubricant oil composite according to the method for embodiment 3, except for the difference that, the weight such as S1 is replaced with
The zinc dibutyl dithiocarbamate of amount part, obtains lubricant oil composite D2.
Test case
Lubricant oil composite A1-A4, D1-D2 are tested the most as follows:
TA5000-DSC2910 differential thermal analyzer is used to carry out the mensuration of initial oxidation temperature；
High Pressure Difference heat scan mensuration (PDSC) is used to carry out the mensuration of oxidation induction period；
Table 1
| A1 | A2 | A3 | A4 | D1 | D2 | |
| Initial oxidation temperature, DEG C | 201 | 231 | 227 | 252 | 218 | 214 |
| Oxidation induction period, min | 18.2 | 52.7 | 45.2 | 64.5 | 35.8 | 34.5 |
It will be understood by those skilled in the art that initial oxidation temperature is the highest, the heat stability of lubricating oil
The best；Oxidation induction period is the longest, and the antioxygenic property of lubricating oil is the best.
A2 with D1 is compared, A3 with D2 is compared, it can be seen that the profit of the present invention
Sliding oil composition has more preferable heat stability, non-oxidizability.
The lubricant oil composite of the present invention has the antioxygenic property of excellence, can suppress high-temperature oxydation deposit
Generation.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention does not limit
Detail in above-mentioned embodiment, in the technology concept of the present invention, can be to the present invention
Technical scheme carry out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technology described in above-mentioned detailed description of the invention is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, various possible compound modes are illustrated by the present invention the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (9)
1. a lubricant oil composite, it is characterised in that on the basis of the weight of lubricant oil composite,
Described lubricant oil composite contains following components: the lube base oil of 90-99.99 weight %, 0.01-10
The antioxygen multipurpose additive of weight %, described antioxygen multipurpose additive is the compound of structure shown in formula (I):
Lubricant oil composite the most according to claim 1, wherein, with the weight of lubricant oil composite
On the basis of amount, described lubricant oil composite contains following components: the lube base oil of 96-99.9 weight %,
The antioxygen multipurpose additive of 0.1-4 weight %.
Lubricant oil composite the most according to claim 1 and 2, wherein, described lube base
Oil is mineral lubricating oil and/or synthetic lubricant fluid.
Lubricant oil composite the most according to claim 1 and 2, wherein, described lubricating oil composition
Thing is possibly together with antirust agent and/or anti-foaming agent.
Lubricant oil composite the most according to claim 4, wherein, described antirust agent is selected from imidazoles
Class and/or alkenyl succinic acid esters, preferably 4,5-glyoxalidine, alkenyl imidazoline succinate and thiazolinyl
At least one in succinate.
Lubricant oil composite the most according to claim 4, wherein, described anti-foaming agent is poly-silica
Alkane type anti-foaming agent, preferably silicone oil and/or polydimethylsiloxane.
7. the preparation method of a lubricant oil composite, it is characterised in that described method includes: will contain
The raw material mix homogeneously having lube base oil and antioxygen multipurpose additive obtains lubricant oil composite, its
In, on the basis of the weight of lubricant oil composite, the consumption of lube base oil is 90-99.99 weight %,
The consumption of antioxygen multipurpose additive is 0.01-10 weight %, and described antioxygen multipurpose additive is formula (I) institute
Show the compound of structure:
Method the most according to claim 7, wherein, on the basis of the weight of lubricant oil composite,
The consumption of lube base oil is 96-99.9 weight %, and the consumption of antioxygen multipurpose additive is 0.1-4 weight
Amount %.
9. according to the method described in claim 7 or 8, wherein, the condition of described mixing includes: temperature
Degree is for 40-90 DEG C, and the time is 1-6h.
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| CN113620895A (en) * | 2021-09-09 | 2021-11-09 | 中国科学院兰州化学物理研究所 | Multifunctional lubricating additive and preparation method thereof |
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