CN101921654A - Oil-gas lubricating oil and production method thereof - Google Patents
Oil-gas lubricating oil and production method thereof Download PDFInfo
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Abstract
The invention provides oil-gas lubricating oil which comprises the following components in percentage by weight: 75-90% of polyester type base oil, 6-20% of other types of base oil, 0.3-3% of antioxidant, 0.01-2% of antirusting agent, 0.5-3% of oiliness improver, 1-5% of extreme pressure antiwear agent and 0.01-0.5% of anti-foaming agent, wherein other types of base oil is one or more than one of synthetic ester, alkyl benzene and alkyl naphthalene. The provided oil-gas lubricating oil has strong universality, is not easy to coke at high temperature and has excellent high temperature performance and good lubricating property. The oil-gas lubricating oil not only can be applied to various bearings of an oil-gas lubricating device, gear cases with various loads, worm gears, worms, locomotive wheel rims, rail cases and the like, but also can be used as ordinary gear oil. Moreover, the oil-gas lubricating oil can be used both in summer and in winter and in southern region and northern region. The oil-gas lubricating oil has strong cleaning performance and can effectively prevent coked matter from blocking oil pipelines.
Description
Technical field
The present invention relates to the lubricating oil field, be specifically related to a kind of oil-gas lubricating oil and production method thereof.
Background technology
The oil-air lubrication technology is an emerging technology, i.e. gas-liquid two-phase fluid cooling and lubricating technology, and using on corresponding apparatus has remarkable advantages than dry oil lubrication, thin oil lubricant and oil-mist lubrication, has and vast potential for future development.The lubrication technology level of current China also has big gap in terms of overall and between the international most advanced level, and the raising of applying promoting China's lubrication technology level of oil-air lubrication technology has positive meaning.
Oil-air lubrication appeared at for 19 end of the centurys the earliest, and steamer was applied to various occasions rapidly at that time.Owing between piston and cylinder body, have factors such as steam, have a strong impact on the work-ing life of steamer.Therefore begin to consider to add less amount of lubrication oil in the steam of input cylinder, rely on high velocity vapor that lubricating oil is transported to the andfrictional conditions that friction surface improves equipment, the result obtains very satisfied effect.Here it is the oil gas lubricating system on the meaning the earliest.The seventies in 20th century, abroad on the basis of traditional laddering, single-line type, two-wire system oiling system, improve and developed the oil-air lubrication device, and make great progress at aspects such as mixing pieces structure, oil circuit control, filtering accuracies, make the oil-air lubrication technology become a sophisticated lubrication technology.Because the Inherent advantage of oil-air lubrication on its principle has the trend that progressively replaces original traditional grease and oil system at numerous areas such as metallurgy industries.Domestic application about oil gas lubricating system is also comparatively extensive.Compare with dry oil lubrication, thin oil lubricant and oil-mist lubrication, oil-air lubrication has tangible advantage, and result of use is more satisfied.
Patent CN1710041 " synthetic oil-air lubricating oil " is the patent that Haihua Grease Chemistry Co., Ltd., Anshan announced, this patent speaks of that to relate to a kind of be the lubricating oil composition of base oil with the synthetic oil.This product is to be base oil with the polyethers synthetic oil, is equipped with oxidation inhibitor and metal passivator, rust-preventive agent, oiliness improver, extreme pressure anti-wear additives again, foam reducing composition is formed, and advantage is to have outstanding resistance to elevated temperatures, carbon deposit not, and noncoking, stifled oil pipe, axis does not hold; Excellent resistance to low temperature is even also have extraordinary flowability below-30 ℃; Extreme pressure and antiwear behavior is good, the supporting capacity height; Excellent dispersiveness is specially adapted to " oil gas " and " mist of oil " and lubricates; This product fully biodegradable, nontoxicity is the green product of compliance with environmental protection requirements.But the oil-gas lubricating oil base oil types that this patent embodies is single, and the cleaning to system during high temperature is not strong, still can not well avoid coking.
Summary of the invention
The problem that the present invention solves is to provide a kind of oil-gas lubricating oil, and high thermal resistance is good, and cleansing power is strong, is difficult for coking under the high temperature, and the present invention also provides a kind of production method of oil-gas lubricating oil.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of oil-gas lubricating oil comprises following component in percentage by weight:
Polyethers base oil: 75%~90%;
Other class base oil: 6%~20%;
Oxidation inhibitor: 0.3%~3%;
Rust-preventive agent: 0.01%~2%;
Oiliness improver: 0.5%~3%;
Extreme pressure anti-wear additives: 1%~5%;
Kilfoam: 0.01%~0.5%;
Described other class base oil is one or more in synthetic ester, alkylbenzene, the alkylnaphthalene.
As preferably, described oxidation inhibitor is one or more in alkylphenol, alkylamine, the sulphur nitrogen composite antioxidant.
As preferably, described rust-preventive agent is sulfonated petro-leum or synthesising sulfonate.
As preferably, described rust-preventive agent is one or more in barium mahogany sulfonate, petroleum sodium sulfonate, synthetic barium sulfonate or the synthetic sodium sulfonate.
As preferably, described oiliness improver is C
6~C
26Monocarboxylic acid and in salt, thiadiazoles and the derivatives quasi-compound thereof one or more thereof.
As preferably, described oiliness improver is one or more in palmitinic acid, stearic acid, oleic acid, lauric acid, Lignoceric acid, the Zoomeric acid.
As preferably, described extreme pressure anti-wear additives is one or more in phosphate compounds, phosphite ester compound, sulphur phosphorus recombiner or the sulfur-bearing extreme pressure anti-wear additives.
As preferably, described extreme pressure anti-wear additives is one or more in tritolyl phosphate, triphenylphosphate, triethyl phosphate, tributyl phosphate and dibutyl phosphite, sulfurous acid three isopropyl esters, sulfide isobutene, thiocarbonate, the dithiocar-bamate.
As preferably, described kilfoam is one or both in silicon type or the non-silicon type antifoamer.
As preferably, described kilfoam is one or more in methyl-silicone oil, polydimethylsiloxane, polyphenyl methyl-monosilane or the polymethacrylate.
A kind of production method of oil-gas lubricating oil may further comprise the steps:
Step a) is found time, stirs, is heated after polyethers base oil and other class base oil are mixed, and is warming up to 70 ℃~90 ℃;
Step b) adds oxidation inhibitor, rust-preventive agent, oiliness improver, extreme pressure anti-wear additives and kilfoam in the base oil of step a), be warming up to 100 ℃~130 ℃, is cooled to after the dehydration below 80 ℃, stops to find time, stirring;
Step c) is filtered the oil product that step b) obtains.
As preferably, described step c) is specially the oil product that step b) is obtained and takes out on a small quantity, adds flocculating aids and stirs, and carries out circulating filtration, make flocculating aids form filter cake after, more remaining oil product is carried out circulating filtration.
As preferably, the add-on of described flocculating aids be the oil product that obtains of step b) weight 0.02%~0.04%.
Oil-gas lubricating oil provided by the invention adopts different base oil combinations, and composite various functional additive, has very strong versatility, is difficult for coking under the high temperature, has excellent high-temperature performance and good lubricity.Not only can be used for adopting the multiple devices such as wheel casing, worm and gear, wheel rim of locomotive and track box of the various bearings of oil-air lubrication device, various loads, also can be used as common gear oil uses, and the summer in winter is general, north and south is general, and have very strong cleaning performance, can prevent effectively that coking material from stopping up pipe laying.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just to further specifying the features and advantages of the present invention, rather than to the restriction of claim of the present invention.
Oil-gas lubricating oil generally is made up of base oil and additive two portions, and base oil is the oil-air lubrication main body of oil, is determining the essential property of oil-gas lubricating oil, is the essential substance that plays lubrication; Additive then can remedy and improve the use properties of oil-gas lubricating oil, satisfies higher application requiring, generally can prolong the life-span of oil-gas lubricating oil, prevents the corrosion of lubricating oil to equipment, increases resistance to abrasion etc., is the important component part of lubricating oil.Lubricating oil additive commonly used has oxidation inhibitor, rust-preventive agent, oiliness improver, extreme pressure anti-wear additives, kilfoam etc.
Oil-gas lubricating oil provided by the invention comprises following component in percentage by weight:
Polyethers base oil: 75%~90%; Other class base oil: 6%~20%, other class base oil comprises one or more in synthetic ester, alkylbenzene, the alkylnaphthalene; Oxidation inhibitor: 0.3%~3%; Rust-preventive agent: 0.01%~2%; Oiliness improver: 0.5%~3%; Extreme pressure anti-wear additives: 1%~5%; Kilfoam: 0.01%~0.5%.
The base oil of oil-gas lubricating oil of the present invention is combined by different base oils, comprises polyethers base oil and other class base oil.The polyethers base oil claims polyalkylene glycol or polyoxyethylene glycol again, be with oxyethane, propylene oxide, butylene oxide ring or tetrahydrofuran (THF), long-chain 1,2-oxirane etc. is a raw material, under katalysis, the polymkeric substance that open loop homopolymerization or copolymerization make has good lubricating property, and viscosity-temperature characteristics are good, the viscosity index height, condensation point is low, and low-temperature fluidity is good, and volatility is low, the use temperature height, oxidation does not at high temperature produce throw out, and shear stability is good, and is little to the effect of metal and rubber, and it is nontoxic, difficult combustion, weight percent is preferably 78%~85% in composition of the present invention.
Other class base oil is selected one or more in synthetic ester, alkylbenzene, the alkylnaphthalene for use, weight percent is preferably 8%~18%, composite with the polyethers base oil, make and be difficult under the oil-gas lubricating oil high temperature decomposing, low oil consumption, low coking have the versatility that good lubricity, excellent high-temperature performance are become reconciled.
By adding oxidation inhibitor, can retarding oil gas lubricating oil store and use in oxidation, oxidation inhibitor of the present invention can be selected one or more in alkylphenol, alkylamine, the sulphur nitrogen composite antioxidant for use.
Rust-preventive agent can form antirust protective film in the metallic surface; can prevent the corrosion of lubricating oil to equipment; the present invention selects sulfonated petro-leum or synthesising sulfonate for use, specifically can be preferably in barium mahogany sulfonate, petroleum sodium sulfonate, synthetic barium sulfonate or the synthetic sodium sulfonate one or more.
Oiliness improver can strengthen the oilness of lubricating oil and prevent friction and scratch, and oiliness improver is selected C for use among the present invention
6~C
26Monocarboxylic acid and in salt, thiadiazoles and the derivatives quasi-compound thereof one or more thereof, be specifically as follows in palmitinic acid, stearic acid, oleic acid, lauric acid, Lignoceric acid or the Zoomeric acid one or more.
Extreme pressure anti-wear additives is a kind of important oil-air lubrication oil additive, can remedy the deficiency of lubricity under severe condition, and major part is the compound of some sulfur-bearings, phosphorus, chlorine, lead, molybdenum.In the ordinary course of things, chlorine class, sulphur class can improve the withstand load ability of oil-air lubricating grease, prevent the metallic surface under high-load condition, take place sintering, the card sting, scratch; And Phosphorus, organo-metallic salt has higher fastness to wear, can prevent or reduce the wearing and tearing of metallic surface under the moderate duty condition.Extreme pressure anti-wear additives of the present invention is selected one or more in phosphate compounds, phosphite ester compound, sulphur phosphorus recombiner or the sulfur-bearing extreme pressure anti-wear additives for use, is specifically as follows in tritolyl phosphate, triphenylphosphate, triethyl phosphate, tributyl phosphate and di-n-butyl phosphite, sulfurous acid three isopropyl esters, sulfide isobutene, thiocarbonate, the dithiocar-bamate one or more.
Lubricating oil in use is easy to generate foam, in oil pipe, cause vapour lock, cause the fuel feeding deficiency, oil film strength and stability have been destroyed, the equipment of abrasive parts using, machine can not run well, therefore for preventing from use to produce foam, need in the oil-gas lubricating oil to add kilfoam, claim defoamer again.After kilfoam adds in the oil product, be adsorbed on the foamy film with the colloidal particle form of high dispersing, along with the motion of oil product molecule is immersed in the oil whip film gradually, become the part of foam film, then on face, expand, film is thinned down, reach the purpose of froth breaking up to film rupture.Kilfoam is one or both in silicon type or the non-silicon type antifoamer among the present invention, specifically can be in polymethyl siloxane, polyphenyl methyl-monosilane or the acrylate ether copolymer one or more.
The present invention also provides a kind of production method of oil-gas lubricating oil, comprises the steps:
Step a) is sent into other class base oil mixing back of the one or more combination in polyethers base oil and synthetic ester, alkylbenzene or the alkylnaphthalene in the compounding kettle with toothed gear pump, finds time, stirs, heats, and is warming up to 70 ℃~90 ℃;
Step b) adds oxidation inhibitor, rust-preventive agent, oiliness improver, extreme pressure anti-wear additives and kilfoam in the base oil that step a) obtains, continue to be warming up to 100 ℃~130 ℃, preferably-0.09MPa~-dewater under the 0.07MPa, be cooled to then below 80 ℃, stop to find time, stirring;
Step c) is filtered the oil product that step b) obtains, concrete filtration procedure is: the oil product that step b) is obtained takes out a small amount of, adding flocculating aids stirs, carry out circulating filtration, after making flocculating aids in filter, form filter cake, again oil product remaining in the still is carried out circulating filtration, limpid transparent until oil product, there is not mechanical impurity, obtain oil-gas lubricating oil, the add-on of flocculating aids is 0.02%~0.04% of all oil product weight, and flocculating aids is preferably diatomite, perlite, Mierocrystalline cellulose, asbestos, Graphite Powder 99, sawdust, magnesium oxide, gypsum, gac, in the acidic white earth one or more.
Embodiment 1:
Step a) is that polyol ester basis oil that the rising sun chemical plant, east, Yingkou City of 80% polyethers NPE-108 and 14.98% produces mixes the back and sends in the compounding kettle with toothed gear pump with weight percent, finds time, stirs, heats, and is warming up to 75 ℃;
Step b) adds 2% T501 (2 in the base oil that step a) obtains, the 6-ditertbutylparacresol), 0.01% petroleum sodium sulfonate, 2% thiadiazoles, 1% tritolyl phosphate and 0.01% 10000# methyl-silicone oil, continue to be warming up to 100 ℃, under-0.08MPa, dewater, be cooled to then below 75 ℃, stop to find time, stirring;
Step c) is filtered the oil product that step b) obtains, concrete filtration procedure is: the oil product that step b) is obtained takes out a small amount of, 0.02% the super-cell that adds all oil product weight stirs, carry out circulating filtration, after making flocculating aids in filter, form filter cake, again oil product remaining in the still is carried out circulating filtration, limpid transparent until oil product, do not have mechanical impurity, obtain oil-gas lubricating oil.
Embodiment 2:
Step a) is that the heavy alkyl benzene of 75% polyethers NPE-105 and 17% mixes the back and sends in the compounding kettle with toothed gear pump with weight percent, finds time, stirs, heats, and is warming up to 80 ℃;
Step b) adds 3% ZDDP (zinc dialkyl dithiophosphate), 1.95% dinonyl naphthalene sulfonate barium, 1% palmitinic acid, 2% dibutyl phosphite and 0.05% polydimethylsiloxane in the base oil that step a) obtains, continue to be warming up to 110 ℃, under-0.09MPa, dewater, be cooled to 65 ℃ then, stop to find time, stirring;
Step c) is filtered the oil product that step b) obtains, concrete filtration procedure is: the oil product that step b) is obtained takes out a small amount of, 0.03% the pearlite filtering aid that adds all oil product weight stirs, carry out circulating filtration, after making flocculating aids in filter, form filter cake, again oil product remaining in the still is carried out circulating filtration, limpid transparent until oil product, do not have mechanical impurity, obtain oil-gas lubricating oil.
Embodiment 3:
Step a) is that the alkylnaphthalene of 85% polyethers F-6 and 8% mixes the back and sends in the compounding kettle with toothed gear pump with weight percent, finds time, stirs, heats, and is warming up to 85 ℃;
Step b) adds two amine of dialkyl group of 1%, 2% heavy alkylbenzene sulfonic acid sodium, 2% T406 (124 Triazole lipid acid amine salt), 1.5% molybdenum dialkyldithiocarbamacompositions and 0.5% polymethacrylate in the base oil that step a) obtains, continue to be warming up to 120 ℃, under-0.07MPa, dewater, be cooled to then below 65 ℃, stop to find time, stirring;
Step c) is filtered the oil product that step b) obtains, concrete filtration procedure is: the oil product that step b) is obtained takes out a small amount of, 0.04% the gac flocculating aids that adds all oil product weight stirs, carry out circulating filtration, after making flocculating aids in filter, form filter cake, again oil product remaining in the still is carried out circulating filtration, limpid transparent until oil product, do not have mechanical impurity, obtain oil-gas lubricating oil.
Embodiment 4:
Step a) is that the heavy alkyl benzene of 78% polyethers NPE-108 and 10% mixes the back and sends in the compounding kettle with toothed gear pump with weight percent, finds time, stirs, heats, and is warming up to 85 ℃;
Step b) in the base oil that step a) obtains, add 3% 2,6-di-t-butyl-alpha, alpha-dimethyl amino-p-cresol, 1.7% T702 (synthetic sodium sulfonate), 3% oleic acid, 4% sulfide isobutene and 0.3% polyphenyl methyl-monosilane, continue to be warming up to 125 ℃, under-0.08MPa, dewater, be cooled to then below 65 ℃, stop to find time, stirring;
Step c) is filtered the oil product that step b) obtains, concrete filtration procedure is: the oil product that step b) is obtained takes out a small amount of, 0.03% the asbestos flocculating aids that adds all oil product weight stirs, carry out circulating filtration, after making flocculating aids in filter, form filter cake, again oil product remaining in the still is carried out circulating filtration, limpid transparent until oil product, do not have mechanical impurity, obtain oil-gas lubricating oil.
Oil-gas lubricating oil to each embodiment preparation carries out performance test respectively, and testing method is conventionally known to one of skill in the art, and experimental result sees Table 1:
Table 1 oil-gas lubricating oil Performance Detection data
The prepared oil-gas lubricating oil of the present invention adopts polyethers synthetic oil and synthetic ester, synthetic oil such as alkylbenzene or alkylnaphthalene is as base oil, adding the additive combination with difference in functionality forms, table 1 column data is the correlated performance of the prepared oil-gas lubricating oil of embodiment, can see that this oil-gas lubricating oil low-temperature fluidity is better, non-corrosiveness, rust protection is good, impure few, coking amount is low, the oil-gas lubricating oil versatility of preparation is good, can be applicable to various bearings, the wheel casing of various loads, worm and gear, multiple device such as wheel rim of locomotive and track box, also can be used as common gear oil and use, and the summer in winter is general, north and south is general, and have very strong cleaning performance, can prevent effectively that coking material from stopping up pipe laying.
More than oil-gas lubricating oil provided by the present invention and production method thereof are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (13)
1. an oil-gas lubricating oil is characterized in that, comprises following component in percentage by weight:
Polyethers base oil: 75%~90%;
Other class base oil: 6%~20%;
Oxidation inhibitor: 0.3%~3%;
Rust-preventive agent: 0.01%~2%;
Oiliness improver: 0.5%~3%;
Extreme pressure anti-wear additives: 1%~5%;
Kilfoam: 0.01%~0.5%;
Described other class base oil is one or more in synthetic ester, alkylbenzene, the alkylnaphthalene.
2. oil-gas lubricating oil according to claim 1 is characterized in that, described oxidation inhibitor is one or more in alkylphenol, alkylamine, the sulphur nitrogen composite antioxidant.
3. oil-gas lubricating oil according to claim 1 is characterized in that, described rust-preventive agent is sulfonated petro-leum or synthesising sulfonate.
4. oil-gas lubricating oil according to claim 3 is characterized in that, described rust-preventive agent is one or more in barium mahogany sulfonate, petroleum sodium sulfonate, synthetic barium sulfonate or the synthetic sodium sulfonate.
5. oil-gas lubricating oil according to claim 1 is characterized in that, described oiliness improver is C
6~C
26Monocarboxylic acid and in salt, thiadiazoles and the derivatives quasi-compound thereof one or more thereof.
6. oil-gas lubricating oil according to claim 5 is characterized in that, described oiliness improver is one or more in palmitinic acid, stearic acid, oleic acid, lauric acid, Lignoceric acid, the Zoomeric acid.
7. oil-gas lubricating oil according to claim 1 is characterized in that, described extreme pressure anti-wear additives is one or more in phosphate compounds, phosphite ester compound, sulphur phosphorus recombiner or the sulfur-bearing extreme pressure anti-wear additives.
8. oil-gas lubricating oil according to claim 7, it is characterized in that described extreme pressure anti-wear additives is one or more in tritolyl phosphate, triphenylphosphate, triethyl phosphate, tributyl phosphate and dibutyl phosphite, sulfurous acid three isopropyl esters, sulfide isobutene, thiocarbonate, the dithiocar-bamate.
9. oil-gas lubricating oil according to claim 1 is characterized in that, described kilfoam is one or both in silicon type or the non-silicon type antifoamer.
10. oil-gas lubricating oil according to claim 9 is characterized in that, described kilfoam is one or more in methyl-silicone oil, polydimethylsiloxane, polyphenyl methyl-monosilane or the polymethacrylate.
11. the production method of each described oil-gas lubricating oil is characterized in that in the claim 1 to 10, may further comprise the steps:
Step a) is found time, stirs, is heated after polyethers base oil and other class base oil are mixed, and is warming up to 70 ℃~90 ℃;
Step b) adds oxidation inhibitor, rust-preventive agent, oiliness improver, extreme pressure anti-wear additives and kilfoam in the base oil of step a), be warming up to 100 ℃~130 ℃, is cooled to after the dehydration below 80 ℃, stops to find time, stirring;
Step c) is filtered the oil product that step b) obtains.
12. the production method of oil-gas lubricating oil according to claim 11 is characterized in that, described step c) is specially the oil product that step b) is obtained and takes out a small amount of, adding flocculating aids stirs, carry out circulating filtration, make flocculating aids form filter cake after, more remaining oil product is carried out circulating filtration.
13. the production method of oil-gas lubricating oil according to claim 12 is characterized in that, the add-on of described flocculating aids be the oil product that obtains of step b) weight 0.02%~0.04%.
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