Composite aluminum base grease composition and preparation method
Technical field
The present invention relates to Industrial Oil technical field, particularly relate to a kind of NEW TYPE OF COMPOSITE aluminium soap grease composition and method of making the same.
Background technology
Composite aluminum base grease is a kind of typical high temperature grease, there is many-sided advantage: dropping point is high, good mechanical stability, water resisting property, oxidation stability, compared with other lubricating grease, there is unique high-temperature and reversible, can under the limit condition of high temperature, after of short duration use, can also substantially recover original lubricating grease state, this feature is useful especially at the lubricated of high temperature position such as metallurgy industries especially sintering steel rolling, simultaneously, composite aluminum base grease is fibrous texture minimum in all fat, therefore there is excellent pumping, be particularly useful for metallurgy, chemistry, papermaking and other industry centralized lubrication system.But lower point of oil of the long-time high-temperature work environment of composite aluminum base grease is serious, greatly reduces lubrication.
Bentonite-thickened grease salient features is: without dropping point high temperature grease; Good temperature pumping; Nontoxic, not react with; Additive is had to good consistency and matching; And the relative soap base grease of manufacturing process is fairly simple, and cost is lower.But, easily sclerosis under bentonite-thickened grease high temperature, the shelf-time is also easily sclerosis for a long time.
Therefore, in industry, need a kind of good thick warm nature energy that both had badly, have again that dropping point is high, mechanical stability, water resisting property, oxidation stability be good, and the good lubricating grease of high-temperature and reversible.
Summary of the invention
The object of this invention is to provide a kind of novel composite aluminum base grease composition, can be used for the lubricated of the lubricated and all kinds of enclosed gears of automobile hub bearing, solve the problem that composite aluminum base grease high-temperature oil separating is large, bentonite-thickened grease easily becomes dry for a long time under high temperature, make this fat there is good thick warm nature energy, guaranteeing that denseness varies with temperature other characteristics on basis slowly with composite aluminum base grease.
Another object of the present invention is to provide a kind of preparation method of composite aluminum base grease composition, it adopts single stage method saponification recombining process, to simplify preparation technology, reduces preparation cost, improves the preparation efficiency of said composition.
For achieving the above object, the present invention proposes a kind of composition of composite aluminum base grease, and it comprises the following component counting by weight percentage:
Base oil 70-85%;
Compound aluminium soap viscosifying agent 3-10%;
Wilkinite 5-15%;
Dispersion agent 5-15%;
Oxidation inhibitor 0.5-3%;
Rust-preventive agent 0.1-1%.
Preferably, described base oil is selected from one or more the mixture in refined mineral oil, synthetic oil, polyalphaolefin, ester class oil.
Phenylformic acid, stearic acid and aluminum isopropylate reaction that described compound aluminium soap viscosifying agent is 1: 1: 1 by mol ratio generate.
Described compound aluminium soap viscosifying agent by or the mol ratio phenylformic acid that is 3: 3: 1, stearic acid and the reaction of aluminum isopropylate tripolymer generate.
Described wilkinite is organobentonite.
Described dispersion agent is a kind of or several combination arbitrarily in water, ethanol, ethylene glycol, acetone, propylene carbonate.
Described extreme pressure anti-wear additives is selected from sulfide isobutene, two Bian Ji bis-sulphur, boratory a kind of or several combination arbitrarily.
Described oxidation inhibitor is selected from a kind of or several combination arbitrarily in pentanoic, phenyl-a-naphthylamine, organic sulfide oxidation inhibitor.
Described rust-preventive agent is selected from a kind of or several combination arbitrarily in petroleum sodium sulfonate, dinonyl naphthalene sulfonate barium, phenylpropyl alcohol triazole, 124 Triazole lipid acid amine salt.
The present invention also provides a kind of preparation method of composite aluminum base grease composition, and this preparation method comprises the following steps:
S1,2/3 base oil, compound aluminium soap viscosifying agent are put in reactor according to mass ratio 100: 7-15, stirred and be heated to 90-120 DEG C, the reaction times is controlled at 60-240min;
S2, in reactor, add a certain amount of water, proceed reaction, wherein amount of water is the 8-15% of compound aluminium soap viscosifying agent, and temperature is controlled at 90-120 DEG C, and the reaction times is controlled at 30-90min;
S3, carry out high temperature refining after having reacted, temperature is controlled at 195-220 DEG C, and the reaction times is controlled at 15-60min;
S4, add 1/6 base oil to start hypothermic response, and add wilkinite 150 DEG C of left and right, compound aluminium soap viscosifying agent and bentonitic mass ratio are 1: 1-3, and the reaction times is controlled at 15-60min;
S5, add dispersion agent, dispersion agent and bentonitic mass ratio are 0.5-1: 1, and temperature of reaction is 40-70 DEG C, the reaction times is controlled at 15-60min;
S6, add residue 1/6 base oil, regulate the cone penetration of lubricating grease;
S7, by reaction product through grind, degassed, obtain the finished product.
Wherein, in S1 by 100: the mass ratio of 7-15 is obtained base oil, compound aluminium soap viscosifying agent, and wherein 2/3 base oil and whole compound aluminium soap viscosifying agents are dropped in reactor and reacted.
Compared with prior art, NEW TYPE OF COMPOSITE aluminium soap grease composition provided by the invention, owing to having selected suitable proportioning raw materials, make this grease composition there is good high-temperature behavior, dropping point is greater than 300 DEG C, denseness varies with temperature and is clearly better, and has solved the large problem of composite aluminum base grease high-temperature oil separating, has improved the defect that bentonite-thickened grease easily becomes dry for a long time under high temperature simultaneously.In addition, adopt single stage method saponification recombining process, simplified preparation technology, reduced production cost, the quality product of this explained hereafter is also very stable, has expanded the range of application of composite aluminum base grease composition.
Brief description of the drawings
Fig. 1 is the schema of composite aluminum base grease preparation method of composition of the present invention.
Embodiment
Below in conjunction with each specific examples and accompanying drawing 1, the present invention is further described, but should understand, the following examples do not limit the scope of the invention, any change that does not exceed design of the present invention and scope, all within the scope of the present invention.
Embodiment 1:
By 8Kg refined mineral oil, 0.36Kg stearic acid, 0.27Kg aluminum isopropylate, 0.16Kg phenylformic acid joins in reactor, stir and be heated to 90-120 DEG C, and keep adding 0.1Kg water after 60min, continue stirring reaction 90min, be heated to 195-215 DEG C, under this high temperature, refine 30min, add 5Kg refined mineral oil, treat that temperature is down to 150 DEG C of left and right and adds 2Kg organobentonite, after 30min, add 2Kg acetone, disperse to add residue 4Kg refined mineral oil and sulfide isobutene 0.1-1Kg after 40min, 124 Triazole lipid acid amine salt 0.2-2Kg and pentanoic 0.1-0.6Kg, after mixing and stirring, grind, the degassed finished product composite aluminum base grease A that obtains.
Embodiment 2:
By the mixing oil of 8Kg mineral oil and synthetic oil, 0.36Kg stearic acid, 0.27Kg aluminum isopropylate, 0.16Kg phenylformic acid joins in reactor, stir and be heated to 90-120 DEG C, be incubated and keep adding 0.1Kg water after 60min, continue stirring reaction 90min, be heated to 195-215 DEG C, under this high temperature, refine 30min, add 5Kg refined mineral oil, treat that temperature is down to 150 DEG C of left and right and adds 1Kg organobentonite, after 30min, add 1Kg acetone, disperse to add residue 2Kg refined mineral oil and sulfide isobutene 0.1-1Kg after 40min, 124 Triazole lipid acid amine salt 0.2-2Kg and thiodiphenylamine 0.1-0.6Kg, after mixing and stirring, grind, the degassed finished product composite aluminum base grease B that obtains.
Embodiment 3:
By 8Kg refined mineral oil, 0.36Kg stearic acid, 0.27Kg aluminum isopropylate, 0.16Kg phenylformic acid joins in reactor, stir and be heated to 90-120 DEG C, be incubated and keep adding 0.1Kg water after 60min, continue stirring reaction 90min, be heated to 195-215 DEG C, under this high temperature, refine 30min, add 5Kg refined mineral oil, treat that temperature is down to 150 DEG C of left and right and adds 2Kg organobentonite, after 30min, add 1.8Kg propylene carbonate, disperse to add residue 4Kg refined mineral oil and phenyl-a-naphthylamine 0.1-1Kg after 40min, 124 Triazole lipid acid amine salt 0.2-2Kg and thiodiphenylamine 0.1-0.6Kg, after mixing and stirring, grind, the degassed finished product composite aluminum base grease C that obtains.
Embodiment 4:
By the mixing oil of 8Kg mineral oil and synthetic oil, 0.36Kg stearic acid, 0.27Kg aluminum isopropylate, 0.16Kg phenylformic acid joins in reactor, stir and be heated to 90-120 DEG C, be incubated and keep adding 0.1Kg water after 60min, continue stirring reaction 90min, be heated to 195-215 DEG C, under this high temperature, refine 30min, add 5Kg refined mineral oil, treat that temperature is down to 150 DEG C of left and right and adds 1Kg organobentonite, after 30min, add 0.9Kg propylene carbonate, disperse to add residue 2Kg refined mineral oil and phenyl-a-naphthylamine 0.1-1Kg after 40min, 124 Triazole lipid acid amine salt 0.2-2Kg and thiodiphenylamine 0.1-0.6Kg, after mixing and stirring, grind, the degassed finished product composite aluminum base grease D that obtains.
Embodiment 5:
By 8Kg refined mineral oil, 0.43Kg stearic acid, 0.2Kg aluminum isopropylate tripolymer, 0.18Kg phenylformic acid joins in reactor, stir and be heated to 90-120 DEG C, be incubated and stir 120min, be heated to 195-215 DEG C, under this high temperature, refine 30min, add 5Kg refined mineral oil, treat that temperature is down to 150 DEG C of left and right and adds 2Kg organobentonite, after 30min, add 2Kg acetone, disperse to add residue 4Kg refined mineral oil and phenyl-a-naphthylamine 0.1-1Kg after 40min, 124 Triazole lipid acid amine salt 0.2-2Kg and thiodiphenylamine 0.1-0.6Kg, after mixing and stirring, grind, the degassed finished product composite aluminum base grease E that obtains.
Embodiment 6:
By the mixing oil of 8Kg mineral oil and synthetic oil, 0.43Kg stearic acid, 0.2Kg aluminum isopropylate tripolymer, 0.18Kg phenylformic acid joins in reactor, stir and be heated to 90-120 DEG C, be incubated and stir 120min, be heated to 195-215 DEG C, under this high temperature, refine 30min, add 5Kg refined mineral oil, treat that temperature is down to 150 DEG C of left and right and adds 2Kg organobentonite, after 30min, add 1.8Kg propylene carbonate, disperse to add residue 4Kg refined mineral oil and phenyl-a-naphthylamine 0.1-1Kg after 40min, 124 Triazole lipid acid amine salt 0.2-2Kg and thiodiphenylamine 0.1-0.6Kg, after mixing and stirring, grind, the degassed finished product composite aluminum base grease F that obtains.
It should be noted that; although technology contents of the present invention and technical characterictic have disclosed as above; but those of ordinary skill in the art still may be based on teaching of the present invention and announcements and are done all replacement and modifications that does not deviate from spirit of the present invention; therefore; protection domain of the present invention should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present invention and modifications, and contained by present patent application claim.