CN101827923A - Slideway lubricant compositions, its preparation and using method - Google Patents

Abstract

Slideway lubricant compositions is provided.Described composition comprises the isomerized base oil of capacity, described isomerized base oil has the successive carbonatoms and belongs to carbon less than the cycloalkanes that n-d-M measures that passes through of 10wt%, so that described composition is separating with water in less than 60 minutes under 54 ℃ according to ASTM D-1401-2002 survey.In one embodiment, described composition does not contain emulsion splitter, if contain few yet.In another embodiment, described composition satisfies machine tools and pneumatic tool producer's requirement, includes but not limited to Cincinnati rice clarke dragon specification P47, P50 and P53 for class 68,220 and 32.

Description

Slideway lubricant compositions, its preparation and using method

Technical field

The present invention relates generally to and be suitable as lubricant, more specifically as the composition of way lubricants.

Background of invention

Guide rail is a kind of mechanical guiding thing, and its design is used for to machine tools provides raceway surface, and this raceway surface is suitable for using down in load (i.e. Zui Xiao distortion), has consistent smooth finish so that constant frictional force to be provided, and how to have nothing to do with movement rate.The machine maker is by with various structures (level, vertical, angled) construction guide rail and make them by several different materials (iron, steel or plastics) and reached these design objectives.Often need machine tools to make article to very fine tolerance, for example the tolerance in the manufacturing of camshaft can only be about 1 micron.For this purpose, machine tools must precisely be located.Way lubricants is used for lubricating the surface of install machinery instrument on it, to help desired location, therefore makes the maximizing performance of guide rail.

In general application, for example in the Hydraulic Field service, machine tools may contact with contaminated water, and this contaminated water can have disadvantageous effect to machine performance.In slideway lubricant compositions, must need good water separable performance.In the prior art, generally adopt breaking additive (or emulsion splitter) for example the multipolymer of oxyethane and propylene oxide help improve the breakdown of emulsion ability of lubricant.In some way lubricants of the prior art, emulsion splitter often can not be solvable fully, causes the throw out of trouble, and this throw out may result in blockage in machine tools.

In many patents announcements and application is US 2006/0289337, US2006/0201851, US2006/0016721, US2006/0016724, US2006/0076267, US2006/020185, US2006/013210, US2005/0241990, US2005/0077208, US2005/0139513, US2005/0139514, US2005/0133409, US2005/0133407, US2005/0261147, US2005/0261146, US2005/0261145, US2004/0159582, US7018525, US7083713, U. S. application sequence number 11/400570, in 11/535165 and 11/613936, they incorporate this paper by reference into, substituting very product, Fischer-Tropsch base oil for example results from raw material wherein and is the technology from the synthetic waxy feeds that reclaims of Fischer-Tropsch.This technology comprises uses dual-function catalyst or the catalyzer of the isomerization paraffinic hydrocarbons dewaxing of the hydroisomerization wholly or in part step of carrying out optionally.By being contacted, waxy feeds and hydroisomerisation catalysts realize the hydroisomerization dewaxing in isomerization zone under the hydroisomerization condition.

Described Fischer-Tropsch synthetic is can be by known method for example commercial

Slurry phase Fischer-tropsch process, commerce

Synthetic (SMDS) technology of middle distillment, or by non-commercial

Advanced gas transforms (AGC-21) technology and obtains.The details of these technologies and other content are stated in following patent, for example, and EP-A-776959, EP-A-668342, U.S. Patent number 4,943,672,5,059,299,5,733,839 and RE39073; With U.S. published application number 2005/0227866, WO-A-9934917, WO-A-9920720 and WO-A-05107935.Described Fischer-Tropsch synthetic comprise usually have 1-100 or even more than the hydrocarbon of 100 carbon atoms, and generally include paraffinic hydrocarbons, alkene and OXO products.Fischer-Tropsch is the feasible method that generates the substituting hydrocarbon product of cleaning.

Still the novel slideway lubricant compositions that needs to have excellent breakdown of emulsion ability and contain substituting hydrocarbon product.

Summary of the invention

On the one hand, the present invention relates to slideway lubricant compositions, it comprises: a) base oil, this base oil comprises at least a isomerized base oil, described isomerized base oil has the successive carbonatoms and belongs to carbon less than the cycloalkanes that n-d-M measures that passes through of 10wt%, b) at least a additive of 0.001-10wt%, described additive is selected from: additive-package, oxidation retarder, high pressure agent, friction improver, adhesion additive, antiwear agents, metal passivator, defoamer, emulsion splitter and their mixture; Wherein said lubricant compositions contains the isomerized base oil of capacity, and survey separates with water in less than 60 minutes so that described composition is according to ASTM D-1401-2002.In one embodiment, this capacity is 95-99.999wt%.

On the other hand, the present invention relates to make the method for way lubricants breakdown of emulsion, described method comprises the isomerized base oil that adds capacity to the base oil that generally is used for preparing this way lubricants, survey separates with water in less than 60 minutes so that described lubricant is according to ASTM D-1401-2002, wherein said isomerized base oil has the successive carbonatoms and belongs to carbon less than the cycloalkanes that n-d-M measures that passes through of 10wt%, and a kind of in wherein said general base oil be mineral oil, alhpa olefin oligopolymer, ester, synthetic hydrocarbon oil and their mixture.

Another aspect, the another kind of method that makes the way lubricants breakdown of emulsion is provided, described method comprises that preparation comprises the base oil of the isomerized base oil of capacity, survey separates with water in less than 60 minutes so that described lubricant is according to ASTM D-1401-2002, and wherein said isomerized base oil has the successive carbonatoms and belongs to carbon less than the cycloalkanes that n-d-M measures that passes through of 10wt%.

Detailed Description Of The Invention

Specification sheets will use following term in full, and will have following implication, except as otherwise noted.

Improved breakdown of emulsion ability (demulsification performance) is meant the ability that oil and water separate.The established test that is used for estimating the ability that industry oil and water separates is ASTM D1401.In this test, under 54 ℃, 40ml oil is mixed with 40ml water, and write down resulting emulsion and be reduced to 3ml or still less (think to separate fully) time that is spent.Do not separate fully if take place.Then write down the volume of existing oil, the volume of water and the volume of emulsion.

" guide rail " used herein can exchange with " slideway " or " chute " and use, and " way lubricants " can exchange use with " set of rails compound " or " slideway lubricant compositions ".

" Fischer-tropsch derived " be meant product, cut or raw material sources in or originate from some stage in fischer-tropsch process." Fischer-Tropsch base oil " used herein can use with " FT base oil ", " FTBO ", " GTL base oil " (GTL: gas becomes liquid) or " Fischer-tropsch derived base oil " exchange.

" isomerized base oil " used herein is meant the base oil of making by the isomerization of waxy feeds.

" waxy feeds " used herein comprises the normal paraffin of 40wt% at least.In one embodiment, waxy feeds comprises the normal paraffin greater than 50wt%.In another embodiment, comprise normal paraffin greater than 75wt%.In one embodiment, waxy feeds also has very low nitrogen and sulphur content, and for example nitrogen and sulphur summation are lower than 25ppm, perhaps are lower than 20ppm in other embodiments.The example of waxy feeds comprises the slack wax of slack wax, de-oiling, the pin oil of refinement, the wax that contains the petroleum derivation of wax lubricant Residual oil, normal paraffin wax, NAO wax, the wax that originates from the chemical plant technological process, de-oiling, Microcrystalline Wax, Fischer-Tropsch wax and their mixture.In one embodiment, the pour point of waxy feeds is higher than 50 ℃.In another embodiment, be higher than 60 ℃.

" kinematic viscosity " be fluid when flowing under gravity with mm ²Measuring of the resistance of/s meter adopts ASTM D445-06 to measure.

" viscosity index " is a numerical value experiment, no unit (VI), and the expression temperature variation is to the influence of the kinematic viscosity of oil.The VI of oil is high more, then its viscosity with temperature and the tendency that changes is just low more.Viscosity index is pressed ASTM D2270-04 and is measured.

Cold cranking simulator apparent viscosity (CCS VIS) is to be the observed value of unit with milli handkerchief mPa.s second, is used to measure the adhesion properties of lubricating base oil under low temperature and shear conditions.CCSVIS is measured by ASTM D 5293-04.

The boiling Range Distribution Analysis of base oil is represented with wt%, is to adopt simulation distil method (SIMDIS) to measure by ASTM D 6352-04 " the gas chromatography determination boiling range is the boiling Range Distribution Analysis of 174-700 ℃ petroleum distillate ".

" Noack volatility " be when oil 250 ℃ of down heating, when taking them out of 60 minutes with the constant airflow, by the oil quality definition, with the loss amount that wt% represents, measure according to ASTMD5800-05 program B.

Use brookfield viscosity to determine the inner fluid frictional force of cold temperature operating period lubricant, it can be measured by ASTM D2983-04.

" pour point " is the temperature of measuring when the base oil sample will begin to flow under the condition of specific careful control, can measure it by ASTM D 5950-02.

" spontaneous ignition temperature " is the temperature of fluid can light automatically when contacting with air the time, and it can be measured by ASTM 659-78.

" Ln " is meant with e to be the natural logarithm at the end.

" drag coefficient " is an intrinsic lubricant properties index, nondimensional with frictional force F and normal force N than value representation, wherein frictional force be a kind of opposing or hinder slide or rolling surface between the mechanical force of motion.Drag coefficient can be measured with the MTM traction measuring system of PCS Instr Ltd., this system is furnished with the polishing ball (SAE AISI52100 steel) of a diameter 19mm, and it becomes 220 degree angles with the smooth polishing disk (SAE AISI 52100 steel) of a diameter 46mm.Steel ball and disk are measured independently under the following conditions: the average rolling speed of 3 meter per seconds, slide with roll than be 40% and load be 20 newton.The rolling ratio is defined as between ball and the dish sliding velocity difference divided by the V-bar of ball and dish, ratio=(speed 1-speed 2)/((speed 1+ speed 2)/2) of promptly rolling.

The meaning of " successive carbonatoms " used herein is that base oil has the hydrocarbon molecule distribution of containing a certain carbon number range, promptly has each number of carbon number intermediary.For example, base oil can have the hydrocarbon molecule of each carbon number of scope in from C22 to C36 or from C30 to C60.The hydrocarbon molecule of base oil differs the successive carbonatoms each other, is because waxy feeds also has the successive carbonatoms.For example, in the Fischer-Tropsch hydrocarbon building-up reactions, source of carbon atoms is CO, and hydrocarbon molecule increases a carbon atom at every turn.The waxy feeds of petroleum derivation has the successive carbonatoms.With anti-based on the oil phase of poly-alpha olefins (PAO), the molecule of isomerized base oil has more linear structure, comprise have short-chain branch than the long bone frame.The classical textbook of PAO is described as star-shaped molecule, three decane (tridecane) particularly, and it can be illustrated as three decane molecules that are connected on the central point.Although star-shaped molecule is theoretic, have still less and longer side chain but the PAO molecular ratio constitutes the hydrocarbon molecule of isomerized base oil disclosed herein.

" have the molecule that cycloalkanes belongs to functional group " and be meant any molecule of the stable hydrocarbon group of monocyclic or fused polycycle, or the stable hydrocarbon group that contains monocyclic or fused polycycle is as one or more substituent any molecules.

" have the molecule that mononaphthene belongs to functional group " and be meant any molecule of monocyclic saturated hydrocarbon group base or had 3-7 any molecule that encircles the single monocyclic saturated hydrocarbon group base replacement of carbon with 3-7 ring carbon.

Any molecule that " has the molecule that polynaphthene belongs to functional group " and be meant any molecule of fused polycycle stable hydrocarbon cyclic group, replaced by one or more fused polycycle stable hydrocarbon cyclic groups that 2 or more a plurality of fused rings are arranged or by any molecule more than 1 the monocyclic saturated hydrocarbon group base replacement that 3-7 ring carbon is arranged with two or more fused rings.

Have cycloalkanes belong to functional group molecule, have mononaphthene and belong to the molecule of functional group and have polynaphthene and belong to the molecule of functional group with reported in weight percent, and the proton N MR that adopts field ionization mass spectrum (FIMS), is used to survey the HPLC-UV of aromatic substance and is used to survey alkene combines and measures, and this paper will further describe comprehensively.

Oxidizer BN measures the response of lubricating oil in the simulation application.Value is high more or say that the long more stability that shows of time that absorbs 1 liter of oxygen is good more.Oxidizer BN can measure (" oxidation of white oil " of R.W.Dornte, Industrial andEngineering Chemistry, 28 volumes with Dornte type oxygen absorption equipment, 26 pages, 1936), condition determination is 340 1 atmospheric pure oxygens down, absorbs 1000ml O with 100g oil ₂Hours report.In oxidizer BN test, every 100g oil uses the 0.8ml catalyzer.Catalyzer is the mixture of soluble metal naphthenate of the average metal analysis of simulation exhausted crankcase oil.Additive-package is the double focusing propylene phenyl zinc dithiophosphate of every 100g oil 80mmol.

Characterization of molecules can adopt the method well known in the art that comprises field ionization mass spectrum (FIMS) and n-d-M analysis (ASTMD3238-95 (issuing again in 2005)) to carry out.In FIMS, base oil is characterized by alkane and the molecule with different unsaturated numbers.Molecule with different unsaturated numbers can comprise naphthenic hydrocarbon, alkene and aromatic substance.If aromatic substance exists with significant quantity, then they to be recognized as 4-unsaturated.When alkene existed with significant quantity, it is unsaturated that they are recognized as 1-.The summation that 1-is unsaturated, 2-is unsaturated, 3-is unsaturated, 4-is unsaturated, 5-is unsaturated and 6-is unsaturated during FIMS analyzes, deduct the alkene wt% that obtains by proton N MR, deduct the aromatic substance wt% that obtains by HPLC-UV again, have the total weight percent that cycloalkanes belongs to molecule of functional group exactly.If do not measure aromatic content, think that then it is less than 0.1wt% and is not included in and has cycloalkanes and belong among the calculating of total weight percent of molecule of functional group.Have total weight percent that cycloalkanes belongs to the molecule of functional group and be have mononaphthene belong to functional group molecule weight percent and have the weight percent sum that polynaphthene belongs to the molecule of functional group.

Molecular weight is measured with ASTM D2503-92 (issuing again in 2002).Described method adopts the thermoelectric measurement (VPO) of vapour pressure.Under the insufficient situation of sample volume, can adopt alternative method ASTM D2502-04, and use this method markers to understand this method.

Density is measured by ASTM D4052-96 (issuing again in 2002).Sample is introduced the vibration sample hose and will be changed the oscillation frequency changing value that causes combines to determine sample with correction data density because of the pipe quality.

The weight percent of alkene can be measured with proton-NMR by the specified step of this paper.In the great majority test, alkene is conventional alkene, being those distributed mixtures with alkene type of the hydrogen that is connected on the double key carbon, for example is α, vinylidene, cis, trans and trisubstituted alkene, and the ratio of detectable allyl group and alkene integration is between 1 and 2.5.When this ratio surpasses approximately 3 the time, just show three or the quaternary alkene that there are higher percent, must make in the analysis field known other hypothesis to calculate the double key number amount in sample.Step is as follows: the A) solution of test hydrocarbon in deuterochloroform of preparation 5-10wt%; B) obtain the normality proton spectrum of 12ppm spectral width at least and accurately with reference to chemical shift (ppm) axle.Employed this instrument must have competent gain margin, so that picked up signal and do not make susceptor/ADC overload, for example when 30 ° of pulses of employing, this instrument must have 65000 minimum signal digitizing dynamicrange.In one embodiment, this instrument dynamic range is at least 260000; C) measure following interval integrated intensity: 6.0-4.5ppm (alkene), 2.2-1.9ppm (allyl group), 1.9-0.5ppm (saturates); D) determine the molecular weight of tester with ASTM D2503-92 (issuing again in 2002), carry out following calculating: 1. the average mark minor of stable hydrocarbon; 2. the average mark minor of alkene; 3. total integrated intensity (=all integrated intensity sums); 4. the integrated intensity of each sample hydrogen (number of the hydrogen in=total integration/molecular formula); 5. the number of alkene hydrogen (integration of=alkene integration/each hydrogen); 6. the number of two keys (hydrogen/2 in=alkene hydrogen * olefin hydrocarbon molecules formula); With the hydrogen number in hydrogen number/typical tester molecule in the number * typical olefin hydrocarbon molecules of the 7. alkene wt%=100 * two keys that obtain by proton N MR.In this test, when the result of olefin percentage is low, when promptly being less than about 15wt%, obtaining alkene wt% by proton N MR calculation procedure D and work well especially.

In one embodiment, measure the weight percent of aromatic substance with HPLC-UV.In one embodiment, use Hewlett Packard 1050 serial quaternary gradient high performance liquid chromatography (HPLC) systems to test, this system is connected with HP 1050 diode array UV-Vis detectors, is the interface with the HP chem workstation.Confirm each aromatic substance type in the HI SA highly saturated base oil according to UV spectrogram and elution time.The nh 2 column that is used for this analysis is mainly distinguished aromatic molecules based on their number of rings (or double key number).Therefore, the molecule that contains monocyclic aromatics is wash-out at first, is the sequentially eluting that polynuclear aromatic compound increases progressively by double key number in the per molecule then.For the aromatic substance with similar pair of key feature, those that have only on the ring that alkyl replaces get faster than there being cycloalkanes to belong to substituent those wash-outs.Differentiate clearly that from the UV absorption spectrum of various base oil aromatic hydrocarbons they are that peak transition of electron by recognizing them realizes with respect to whole red shift degree of pure model compound analogue, this red shift degree depends on the alkyl on the member ring systems and the amount of cycloalkyl substituted.Come the aromatic substance of wash-out is carried out quantitatively by integral chromatogram, wherein this color atlas is made in the appropriate retention time window for this aromatic substance by the wavelength to the compound optimization of each big class.Compound by artificial evaluation wash-out is appropriate aromatic species in the absorption spectrum separately of different time and based on the qualitative resemblance of they and model compound absorption spectrum with their ownership, comes to determine the retention time window limits for each aromatic species thus.

HPLC-UV proofreaies and correct.In one embodiment, even under the very low situation of content, also can identify the type of these aromatic substance with HPLC-UV, for example polynuclear aromatic compound is stronger 10 to 200 times than the absorption of monocyclic aromatics usually.Alkyl replaces the influence to being absorbed with 20%.Determine at the 272nm place for the 1-ring of co-elute and the integration boundaries of 2-cyclophane compounds of group by the vertical line dropping method.By setting up Beer law figure,, at first determine the response factor that depends on wavelength of every class aromatic substance based on the spectrum peak absorbancy the most close with the aromatics analogue of described replacement from pure model compound mixture.Be approximately equal to the molecular-weight average of whole base oil sample by the molecular-weight average of supposing each class aromatic substance, calculate the weight percent concentration of aromatic substance.

NMR analyzes.In one embodiment, the weight percent that has all molecules of at least one aromatic functional group in single aromatic substance standard model that the carbon 13NMR analysis confirmation by long duration is purified.Aromatic substance by the 95-99% in the saturated base oil of known altitude is a monocyclic aromatics, and NMR result is converted into aromatic molecules % (for consistent with HPLC-UV and D2007) from aromatics carbon %.In another test, in order accurately to measure all molecules of low levels by NMR with at least one aromatic functional group, modification standard D5292-99 method (issuing again in 2004) has 15 hours time length of operation on the 400-500MHz NMR of 10-12mmNalorac probe to provide 500: 1 minimum carbon sensitivity (by ASTM standard practices E386).Use Acorn PC integration software to define the shape of baseline and integration as one man.

The degree of branching is meant the number of alkyl branches in the hydrocarbon.Branching and branch position can use carbon-13 ( ¹³C) measure by following nine footworks: 1) determine CH branching center and CH with DEPT pulse sequence ₃Branching terminating point (Doddrell, D.T.; D.T.Pegg; M.R.Bendall, Journalof Magnetic Resonance 1982,48,323ff.); 2) confirm to lack carbon (quaternary carbon) (Patt, the S.L. that causes a plurality of side chains with APT pulse sequence; J.N.Shoolery, Journal ofMagnetic Resonance 1982,46,535ff.); 3) with tabulated value as known in the art and calculated value various branched carbon resonance are pointed out to concrete side chain position and length (Lindeman, L.P., Journal of Qualitative Analytical Chemistry 43,1971 1245ff; Netzel, D.A. waits the people, Fuel, 60,1981,307ff.); 4) estimate the relative branching density in different carbon locations place (it equals the carbon number of per molecule in total mark/mixture) by the integrated intensity of the appointment carbon of methyl/alkyl relatively with the intensity of single carbon.For the 2-methyl branch, end position methyl occurs at identical resonant position with branched chain methyl, before the estimation branching density with intensity divided by two.If 4-methyl branch part is calculated and is tabulated, for fear of dual calculating, essential contribution of deducting it to the 4+ methyl; 5) calculate average carbon number, average carbon number is that molecular weight with sample is divided by 14 (CH ₂Chemical formula weight) come to determine; 6) the side chain number of per molecule is the side chain sum of finding in the step 4; 7) (step 6) multiply by 100 and calculates the number of the alkyl branches of per 100 carbon atoms divided by average carbon number by the side chain number of per molecule; 8) use ¹H NMR analytical estimating branch index (BI) is represented with the per-cent of methyl hydrogen (chemical shift range 0.6-1.05ppm) in total hydrogen of NMR estimation in the liquid hydrocarbon composition; 9) with the 13CNMR estimation branching degree of approach (BP), represent with the per-cent of multiple mesomethylene carbon (it is apart from end group or branch 4 or more a plurality of carbon (by the NMR signal representative at 29.9ppm place)) in the total carbon of NMR estimation in the liquid hydrocarbon composition.Available any fourier transformation NMR spectrometer is measured, and for example has the spectrometer of 7.0T or bigger magnet.With mass spectrum, UV or NMR measure confirm there is not aromatics carbon after, will ¹³The spectrum width of C NMR research is limited to the saturated carbon zone, with respect to TMS (tetramethylsilane) 0-80ppm.The solution of 25-50wt% in chloroform-d1 excites with 30 degree pulses, then is 1.3 seconds detection times.For uneven intensity data is minimized, use the contrary door of broadband proton (inverse-gated) to separate idol in 6 seconds deferring procedures before excitation pulse and in detection process.Mix the Cr (acac) of 0.03-0.05M in the sample ₃(tri acetylacetonato-chromium (III)) is as relaxation reagent.DEPT and APT sequence are undertaken by document description, and the description in Varian or the Bruker operational manual has fine difference.DEPT is the undistorted enhancing by polarization transfer.DEPT 45 sequences provide the signal of all carbon of binding to the proton.90 of DEPT show CH carbon.DEPT 135 expression CH and CH upwards ₃And the CH of phase phasic difference 180 degree (downwards) ₂APT is the test of bonded proton well known in the art.As seen it make all carbon, but if CH and CH ₃Make progress, then quaternary carbon and CH ₂Downwards.With ¹³The branching character of C NMR working sample, use following hypothesis in calculating: all sample is isomerization alkanes.Unsaturates content can be measured with field ionization mass spectrum (FIMS).

In one embodiment, described slideway lubricant compositions with excellent breakdown of emulsion ability comprises optional additive in base oil base-material or base oil blends.

The base oil base ingredient:

In one embodiment, the base oil of described slideway lubricant compositions or temper comprise at least a isomerized base oil, and this isomerized base oil product itself, its cut or raw material stemmed from or result from isomerization reaction (Fischer-tropsch derived base oil) from the waxy feeds of Fischer-tropsch process in some stage.In another embodiment, described base oil comprises the isomerized base oil that at least a wax stock (waxy feeds) that is belonged to by alkane is basically made.

Fischer-tropsch derived base oil is disclosed in during many patents announce, comprises for example U.S. Patent number 6080301,6090989,6165949 and U.S. Patent Publication No. US2004/0079678A1, US20050133409, US20060289337.Fischer-tropsch process is a catalyzed chemical reaction, and wherein carbon monoxide and hydrogen are converted into various forms of liquid hydrocarbons, comprises lightweight reaction product and content of wax reaction product, and the two all is that alkane belongs to basically.

In one embodiment, described isomerized base oil has the successive carbonatoms and measures the cycloalkanes be less than 10wt% by the n-d-M method and belongs to carbon.In another embodiment, the kinematic viscosity of isomerized base oil under 100 ℃ of being made by waxy feeds is 1.5 and 3.5mm ²Between/the s.

In one embodiment, described isomerized base oil is by making being enough to make base oil to have the method for carrying out the hydroisomerization dewaxing under the condition of following feature: the weight percent that a) has all molecules of at least one aromatic functional group is less than 0.30, b) have the weight percent of all molecules that at least one cycloalkanes belongs to functional group more than 10, c) have mononaphthene belong to functional group molecule weight percent with have polynaphthene belong to functional group molecule weight percent ratio greater than 20 and d) viscosity index is greater than 28 * Ln (kinematic viscosity under 100 ℃)+80.

In another embodiment, described isomerized base oil is to be made by such method, uses the shape molecular sieve of medium pore size of selecting that comprises the noble metal hydrogenation component under the condition of 600-750 (315-399 ℃) wax that high alkane belongs to be carried out hydroisomerization in this method.In this method, the condition of control hydroisomerization is so that the wax stock mid-boiling point is higher than the compound of 700 (371 ℃) maintains between 10wt% and the 50wt% to the conversion of compounds rate that boiling point is lower than 700 (371 ℃).The kinematic viscosity of the isomerized base oil of gained under 100 ℃ is 1.0 and 3.5mm ²Be less than 50wt% with the Noack volatility between the/s.This base oil comprises the aromatic substance that cycloalkanes belongs to the molecule of functional group and is less than 0.30wt% that has more than 3wt%.

In one embodiment, the Noack volatility of described isomerized base oil is less than the amount of being calculated by following formula: 1000 * (kinematic viscosity under 100 ℃) ^-2.7In another embodiment, the Noack volatility of isomerized base oil is less than the amount of being calculated by following formula: 900 * (kinematic viscosity under 100 ℃) ^-2.8In the 3rd embodiment, the kinematic viscosity＞1.808mm of isomerized base oil under 100 ℃ ²/ s and Noack volatility are less than the amount of being calculated by following formula: 1.286+20 (kv100) ^-1.5+ 551.8e ^-kv100, wherein kv100 is the kinematic viscosity under 100 ℃.In the 4th embodiment, the kinematic viscosity of isomerized base oil under 100 ℃ is less than 4.0mm ²/ s and wt%Noack volatility are between 0 and 100.In the 5th embodiment, the kinematic viscosity of isomerized base oil is 1.5 and 4.0mm ²Between/the s and the Noack volatility less than the Noack volatility of calculating by following formula: 160-40 (kinematic viscosity under 100 ℃).

In one embodiment, the kinematic viscosity of isomerized base oil under 100 ℃ is 2.4 and 3.8mm ²In/s the scope and the Noack volatility less than amount by the following formula definition: 900 * (kinematic viscosity under 100 ℃) ^-2.8-15.For at 2.4-3.8mm ²Kinematic viscosity in the/s scope, formula: 900 * (kinematic viscosity under 100 ℃) ^-2.8-15 Noack volatility that provide are lower than formula: 160-40 (kinematic viscosity under 100 ℃).

In one embodiment, described isomerized base oil is to be made by the method that the wax that high alkane is belonged to carries out hydroisomerization, and the condition of described method makes that the kinematic viscosity of this base oil under 100 ℃ is 3.6-4.2mm ²/ s, viscosity index greater than 130, the wt%Noack volatility less than 12, pour point is lower than-9 ℃.

In one embodiment, the aniline point of described isomerized base oil (in Fahrenheit degree) is greater than 200 and be less than or equal to amount by following formula definition: (kinematic viscosity under 100 ℃ is with mm for 36 * Ln ²/ s meter)+200.

In one embodiment, the spontaneous ignition temperature of described isomerized base oil (AIT) is higher than the AIT of following formula definition: in ℃ AIT=1.6 * (kinematic viscosity under 40 ℃ is with mm ²/ s meter)+300.In second embodiment, the AIT of this base oil is higher than 329 ℃ and viscosity index, and (kinematic viscosity under 100 ℃ is with mm greater than 28 * Ln ²/ s meter)+100.

In one embodiment, described isomerized base oil has low relatively drag coefficient, and specifically, its drag coefficient is lower than the amount of being calculated by following formula: (kinematic viscosity is with mm for drag coefficient=0.009 * Ln ²/ s meter)-0.001, wherein the kinematic viscosity in the formula be during drag coefficient is measured kinematic viscosity and 2 and 50mm ²Between/the s.In one embodiment, isomerized base oil is 15mm in kinematic viscosity ²/ s and slides/rolls are than being that the drag coefficient measured in 40% o'clock is less than 0.023 (or less than 0.021).In another embodiment, isomerized base oil is 15mm in kinematic viscosity ²/ s and slides/rolls are than being that the drag coefficient measured in 40% o'clock is less than 0.017.In another embodiment, the viscosity index of isomerized base oil is greater than 150 be 15mm in kinematic viscosity ²/ s and slides/rolls are than being that the drag coefficient measured in 40% o'clock is less than 0.015.

In some embodiments, the isomerized base oil with low traction coefficient has also shown higher kinematic viscosity and higher boiling point.In one embodiment, the drag coefficient of described base oil less than 0.015 and the 50wt% boiling point be higher than 565 ℃ (1050 °F).In another embodiment, the drag coefficient of base oil is less than 0.011 be higher than 582 ℃ (1080 °F) by the 50wt% boiling point that ASTM D 6352-04 measures.

In some embodiments, the isomerized base oil with low traction coefficient has also shown unique branching character (being measured by NMR), comprises that branch index is less than or equal to 23.4, and the branching degree of approach is more than or equal to 22.0, and the uncombined carbon index is between 9 and 30.In one embodiment, the cycloalkanes of 4wt% belongs to carbon to use n-d-M assay determination, described base oil to have at least with ASTM D 3238-95 (issuing again in 2005), and in another embodiment, the cycloalkanes of 5wt% belongs to carbon at least.

In one embodiment, isomerized base oil is produced in following process, wherein the intermediate oil isomer comprises paraffinic components, and wherein the degree of branching is less than 7 alkyl branches of per 100 carbon, and wherein this base oil to comprise the degree of branching be paraffinic components at 2 less than 8 alkyl branches of per 100 carbon and the alkyl branches that is less than 20wt%.In another embodiment, the pour point of FT base oil is lower than-8 ℃, and the kinematic viscosity under 100 ℃ is at least 3.2mm ²/ s and viscosity index are greater than the viscosity index of being calculated by formula=22 * Ln (kinematic viscosity under 100 ℃)+132.

In one embodiment, described base oil comprises more than 10wt% and is less than all molecules that cycloalkanes belongs to functional group that have of 70wt%, and have mononaphthene belong to functional group molecule weight percent with have polynaphthene and belong to the ratio of weight percent of molecule of functional group greater than 15.

In one embodiment, the molecular-weight average of isomerized base oil is between 600 and 1100, and the average degree of branching is that per 100 carbon atoms have the alkyl branches between 6.5 and 10 in the molecule.In another embodiment, the kinematic viscosity of isomerized base oil is about 8 and about 25mm ²The average degree of branching is that per 100 carbon atoms have the alkyl branches between 6.5 and 10 between/the s and in the molecule.

In one embodiment, isomerized base oil is to be that 712.4-3562 rises H by the wax that high alkane is belonged in hydrogen/raw material ratio ₂/ rise that the method for carrying out hydroisomerization under the condition of oil obtains, so that have the total weight percent of molecule that cycloalkanes belongs to functional group in this base oil more than 10, and have mononaphthene belong to functional group molecule weight percent with have polynaphthene and belong to the ratio of weight percent of molecule of functional group greater than 15.In another embodiment, the viscosity index of this base oil is greater than the amount of being calculated by formula: 28 * Ln (kinematic viscosity under 100 ℃)+95.In the 3rd embodiment, the weight percent of the aromatic substance that this base oil comprises is lower than 0.30, have cycloalkanes and belong to the weight percent of molecule of functional group more than 10, and have mononaphthene belong to functional group molecule weight percent with have polynaphthene belong to functional group molecule weight percent ratio greater than 20 and viscosity index greater than 28 * Ln (kinematic viscosity under 100 ℃)+110.In the 4th embodiment, this base oil further has under 100 ℃ greater than 6mm ²The kinematic viscosity of/s.In the 5th embodiment, the weight percent of the aromatic substance that this base oil has be lower than 0.05 and viscosity index greater than 28 * Ln (kinematic viscosity under 100 ℃)+95.In the 6th embodiment, the weight percent of the aromatic substance that base oil contains is lower than 0.30, have the weight percent of molecule that cycloalkanes belongs to functional group greater than the kinematic viscosity under 100 ℃ (with mm ²/ s meter) multiply by 3, and have molecule that mononaphthene belongs to functional group and have polynaphthene and belong to the ratio of molecule of functional group greater than 15.

In one embodiment, described isomerized base oil contains cycloalkanes between 2% and 10% and belongs to carbon (being measured by the n-d-M method).In one embodiment, this base oil has at 100 ℃ of following 1.5-3.0mm of being ²The kinematic viscosity of/s and the cycloalkanes of 2-3% belong to carbon.In another embodiment, the kinematic viscosity under 100 ℃ is 1.8-3.5mm ²It is 2.5-4% that/s and cycloalkanes belong to carbon.In the 3rd embodiment, the kinematic viscosity under 100 ℃ is 3-6mm ²It is 2.7-5% that/s and cycloalkanes belong to carbon.In the 4th embodiment, the kinematic viscosity under 100 ℃ is 10-30mm ²/ s and cycloalkanes belong to carbon more than 5.2%.

In one embodiment, the molecular-weight average of described isomerized base oil is greater than 475, viscosity index greater than 140 and olefin percentage be less than 10.This base oil can improve the air release property matter and the low whipability of mixture in being incorporated into described slideway lubricant compositions the time.

In one embodiment, described isomerized base oil is a disclosed white oil in U.S. Patent number 7214307 and U.S. Patent application US20060016724.In one embodiment, the kinematic viscosity of described isomerized base oil under 100 ℃ is at about 1.5cSt and 36mm ²Between/the s, viscosity index is greater than the amount by following formula calculated: viscosity index=28 * Ln (kinematic viscosity under 100 ℃)+95, have cycloalkanes belong to functional group molecule weight percentage 5 and less than 18 between, have the weight percentage of molecule that polynaphthene belongs to functional group less than 1.2, pour point is+20 or bigger less than 0 ℃ and Saybolt color.

In one embodiment, described slideway lubricant compositions adopts by at least a of above-mentioned isomerized base oil or base oil that mixture is formed.In another embodiment, described composition is made up of at least a Fischer-Tropsch base oil basically.In another embodiment, the oil of at least a isomerized base oil of described composition employing capacity and the another kind of at least type of 5-95wt%, for example be selected from the lubricant base oil of I class, II class, III class, IV class and V series lubricant agent base oil, this isomerized base oil exists with capacity, so that described slideway lubricant compositions still has the demulsification performance of expectation, for example make the emulsion that obtains be reduced to 3ml or still less required time minimization.

Depend on application, the example of described base oil (except that described isomerized base oil) comprises conventional mineral oil, synthetic hydrocarbon oil or synthetic ester oil or their mixture that uses.The mineral lubricating oils oil base stock can be the oil base stock derived from alkane belongs to, cycloalkanes belongs to and any routine of mixed base crude oil (mixedbase crudes) is refined.Spendable ucon oil comprises the ester and the mixed ester of glycol.Spendable other synthetic oil comprises synthetic hydrocarbon, for example polyalphaolefin; Alkylbenzene is for example from the alkylide bottoms of the alkylated reaction of benzene and tetrapropylene; Or the multipolymer of ethene and propylene; Silicone oil, for example ethylphenyl polysiloxane, methyl polysiloxane etc.; Polyglycol oil, for example make butanols and propylene oxide condensation and obtain those; Or the like.Other suitable synthetic oil comprises polyphenylene ether, for example has those of 3-7 ehter bond and 4-8 phenyl.Other suitable synthetic oil comprises polyisobutene and for example alkylating naphthalene of alkylating aromatic substance.

In one embodiment, the base oil base-material of described way lubricants is the FT base oil, and the kinematic viscosity of this FT base oil under 100 ℃ is 3 and 5mm ²Between/the s, the kinematic viscosity under 40 ℃ is 10 and 20mm ²Between/the s, viscosity index is between 135 and 150, and CCS VIS is 1500-3500mPa.s down at-40 ℃, is 1000-2000mPa.s down at-35 ℃, pour point is-20 to-30 ℃, molecular weight is 400-500, and density is 0.805-0.820, and alkane belongs to carbon in the 94-97% scope, cycloalkanes belongs to carbon in the 3-6% scope, oxidizer BN is 35-50 hour, and bromine index is that 18-28 and the Noack volatility surveyed by ASTM D5800-05 program B are 10-20wt%.

Extra optional components: slideway lubricant compositions of the present invention is characterised in that to have excellent breakdown of emulsion ability, and needs few breakdown of emulsion reagent (emulsion splitter), if not unwanted words.Yet, in certain embodiments and depend on terminal applies, can randomly add a spot of emulsion splitter with the amount of 0.001-10.0wt%.In one embodiment, add at least a emulsion splitter that is less than 5wt%.In another embodiment, the amount of interpolation is less than 1wt%.In the 4th embodiment, the amount of emulsion splitter is less than 0.5wt%.

The limiting examples of emulsion splitter includes but not limited to: polyoxyalkylene alcohol, oxyalkylated (oxyalkylated) alcohol, lipid acid, aliphatic amide, glycol, alkylphenol-formaldehyde condensation compound, alkylbenzene sulfonate, polyethylene oxide, poly(propylene oxide), the salt of oil-soluble acid and ester, oxyalkylated trimethylolalkane, alkoxylated alkyl group phenol-formaldehyde condensation products, the oxozone alkylene derivative of quadrol, the mixture of alkylaryl sulphonate, polyoxyalkylene glycol, oxyalkylated glycol, the ester of oxyalkylated glycol, the alkoxylated alkyl group phenolic resin, with derived from oxyethane, propylene oxide, the polyoxyalkylene glycol of 1-2 and/or 2-3 butylene oxide ring and their mixture.

In one embodiment, described way lubricants can contain its amount and be other additive known in the art of 0.05-10wt%, for example high pressure agent, bonding (adhesion) additive, friction improver, oxidation inhibitor (oxidation retarder), antiwear agents, metal passivator, defoamer etc. are to improve the character of described composition.

In one embodiment, use adhesion additive for example molecular-weight average be at least 1000000 synthesized polymer adhesion additive and help described lubricant compositions is remained on the bearing surface with operating period at the guide rail platform.Example is " the ADDCO ADDTAC that can obtain from the Gateway Additives of Spartanburg S.C. ^TM".

In some applications and do not have under the situation of extreme pressure agent, when operating under high pressure and/or high temperature, the way lubricants film has the higher tendency of breaking.In one embodiment, extreme pressure agent can add in the described lubricant compositions with the amount of the about 5wt% of about 0.05-, to prevent the contacting of destructive metal and metal under high pressure and/or high temperature moving surface lubricated.The example of extreme pressure agent comprises the sulfurized synthetic compound, for example the tetrasulfide derivative of hydrogen sulfide affixture, dimethyl benzyl tetrasulfide and C18 hydrocarbon, C18 lipid acid and the C18 fatty acid alkyl ester and the triglyceride level of sulfurized polyisobutene, thienyl derivative, carbophenothion (trithiones), disulphide, trisulphide, alkene.In one embodiment, the molecular weight of described extreme pressure agent is at least about 200-500g/mol, and boiling point is at least about 300 ℃, has guaranteed that therefore it is retained in the described lubricant compositions and does not in use evaporate.Example is two uncle's dodecyl trisulphides.

In one embodiment, described composition also comprise its amount at least a friction improver of 0.1-3wt% to reduce friction, the adhesion between bearing surface and the guide rail platform surface and to collide with.In one embodiment, described friction improver is the glyceryl monooleate of borated.In another embodiment, described friction improver is that molecular-weight average synthesizes ester, for example carboxylicesters greater than the polymeric at least about 200000; The ester of monocarboxylic acid and glycol; The ester of dimer acids and monohydroxy-alcohol; The ester of glycerine and mono carboxylic lipid acid; The ester of mono carboxylic lipid acid and polyvalent alcohol; Ester with dicarboxylic acid and polyvalent alcohol.

In one embodiment, described composition contains at least a additive above-mentioned with the form that preparation is used for the additive-package of way lubricants.Example is the additive-package that can obtain from the Elco company of Cleveland OH.

The preparation method:Can be respectively or be blended into the base oil base-material with each additive that various sub-combinations thereof modes will be used for preparing described composition.In one embodiment, use multifunctional additive for lubricating oils (being for example hydrocarbon solvent of additive+thinner) that all components is in harmonious proportion into simultaneously.The benefit of using multifunctional additive for lubricating oils to bring is that mutual capacitive is provided when each composition merges with the multifunctional additive for lubricating oils form.

In another embodiment, described composition is made by under for example about 60 ℃ of proper temperature base oil and each additive being mixed to homogeneous phase.

Use:In one embodiment, described composition is as way lubricants, is used for lubrication machine instrument guide rail, flat bearing, guide rail and guidance, for example tracks of lubrication machine instrument.Its major function is to prevent wearing and tearing and corrosion, and reduces stiction and kinetic friction between machine tools and the base.It can be used in needs high-quality breakdown of emulsion lubricant to protect guide rail and have on all levels and upright guide rail of service life of prolongation.

In one embodiment, described composition especially is suitable for process of lapping, elimination is trembled and protect guide rail to avoid wearing and tearing and corrosion.In another embodiment, described composition is used for the application of the combination of requirement guide rail and hydraulic fluid performance.

Character:Slideway lubricant compositions of the present invention is characterised in that to have excellent breakdown of emulsion ability, and needs few emulsion splitter, if not unwanted words.In one embodiment, described slideway lubricant compositions contains the isomerized base oil of capacity so that described composition presents excellent breakdown of emulsion ability, the time that survey separates (that is, to 3ml or still less) fully under 54 ℃ according to ASTM D-1401-2002 was less than 60 minutes.In second embodiment, way lubricants of the present invention presented under 54 ℃ less than 45 minutes separate fully.In the 3rd embodiment, 54 ℃ of following distinct times less than 30 minutes.In the 4th embodiment, 54 ℃ of following distinct times less than 15 minutes.

In one embodiment, described slideway lubricant compositions contains the isomerized base oil of capacity, so that described composition presents excellent breakdown of emulsion ability, for the oil of the kinematic viscosity under 40 ℃ greater than 90cSt, the time that survey separates (that is, to 3ml or still less) fully under 82 ℃ according to ASTM D-1401-2002 was less than 60 minutes.In second embodiment, for the oil of the kinematic viscosity under 40 ℃ greater than 90cSt, way lubricants of the present invention presented under 82 ℃ less than 45 minutes separate fully.In the 3rd embodiment, for the oil of the kinematic viscosity under 40 ℃ greater than 90cSt, 82 ℃ of following distinct times less than 30 minutes.In the 4th embodiment, for the oil of the kinematic viscosity under 40 ℃ greater than 90cSt, 82 ℃ of following distinct times less than 15 minutes.

In one embodiment, slideway lubricant compositions with base oil base-material (this base oil base-material for example is made up of the Fischer-tropsch derived base oil that waxy feeds is made isomerized base oil basically) is characterised in that the low-down sulphur content less than 1ppm with expectation, therefore will bacterial growth and stink generation not had contribution.

In one embodiment, described composition satisfies machine tools and pneumatic tool producer's requirement, includes but not limited to Cincinnati rice clarke dragon specification P47, P50 and P53 for class 68,220 and 32.

In one embodiment, the slideway lubricant compositions that has basically a base oil base-material of forming by for example Fischer-tropsch derived base oil of isomerized base oil shown from inherent biodegradable＞30% biodegradable to being easy to＞OECD 301D level in 90% the scope.In one embodiment, has kinematic viscosity＜100mm under 40 ℃ ²The guide rail lubricating composition (H) of the base oil base-material of/s presents about 30% OECD 301D biodegradable.In second embodiment, has the kinematic viscosity＜40mm under 40 ℃ ²The described composition (M) of the base oil base-material of/s presents about 40% OECD 301D biodegradable.In the 3rd embodiment, have 40 ℃ of following kinematic viscosity＜8mm ²The described composition (L) of the base oil base-material of/s presents 〉=40% OECD 301D biodegradable.In the 4th embodiment, have 40 ℃ of following kinematic viscosity＜11mm ²The described composition of the base oil base-material of/s presents about 80% OECD 301D biodegradable.In the 5th embodiment, has the kinematic viscosity＜6mm under 40 ℃ ²The described composition of the base oil base-material of/s presents＞93% OECD 301D biodegradable.

In one embodiment, the kinematic viscosity of described slideway lubricant compositions under 40 ℃ is 10-250mm ²/ s, the kinematic viscosity under 100 ℃ is 6-20mm ²/ s, viscosity index is 145-160, and the COC flash-point is at least 200 ℃, and pour point is-5 to-30 ℃.

EmbodimentProviding following examples illustrates as the nonrestrictive of each side of the present invention.Unless otherwise prescribed, employed each component (and in table 1, representing) as follows among the embodiment with wt%.

MGTL and HGTL are the FTBO base oils from the Chevron company of CA San Ramon.The FTBO basis oil properties that is used for embodiment is shown in Table 2.

Ergon ^TMHygold 100 and Ergon ^TML2000 light color oil is that the heavy cycloalkanes from the violent hydrotreatment of Ergon oil refinery company belongs to distillment (V class).

Citgo ^TM325N and Citgo ^TM650N is the height purified solvent neutral oil from the Citgo oil company of Tulsa OK.

Star ^TM6 and Star ^TMThe 12nd, from the II class base oil of Shell lubricant company.

SynFuid ^TM8cSt and SynFluid ^TM40cSt is from the polyalphaolefin of Chevron company (PAO) oil.

Additive X is the sulfurized fatty acid ester and the extreme boundary lubrication additive of non-activity, can be commercially available from multiple source.

Data in the table 1 show, compare with the composition of the embodiment 1-4 of the base oil that contains prior art, the embodiment 5 that has shown the embodiment of way lubricants of the present invention presents excellent water sepn performance character (surveying according to ASTM D-1401-2002).

Table 1

	Embodiment 1 V class	Embodiment 21 classes	Embodiment 32 classes	Embodiment 4 PAO	Embodiment 5 FTBO
						??Ergon?Hygold?100	??55.59	??-	??-	??-	??-
Ergon L2000 light color oil	??39.41	??-	??-	??-	??-
						??Citgo?325N	??-	??45.61	??-	??-	??-
??Citgo?650N	??-	??49.39	??-	??-	??-
						??Star6	??-	??-	??56.74	??-	??-
??Star12	??-	??-	??38.26	??-	??-
						??Synfluid?8cSt	??-	??-	??-	??82.26	??-
??SynFluid?40cSt	??-	??-	??-	??12.74	??-
						??MGTL	??-	??-	??-	??-	??46.76
??HGTL	??-	??-	??-	??-	??48.24
						Additive X	??5	??5	??5	??5	??5
Amount to	??100	??100	??100	??100	??100
						Kinematic viscosity under 40 ℃, cSt	??64.11	??63.11	??64.93	??64.48	??63.81
Water sepn ability oil/water/emulsion under 54 ℃, the ml time, minute	??3/4/73??30	??34/23/23??30	??3/4/73??30	??29/25/26??30	??38/39/3??30

Table 2

Character	??MGTL	??HGTL
			Kinematic viscosity under 40 ℃, cSt	??37.92	??99.38
Kinematic viscosity under 100 ℃, _ cSt	??7.129	??14.84
			Viscosity index	??153	??156
Cold start-up viscosity under-25 ℃, _ cP	??2.200	??13.152

Character	??MGTL	??HGTL
			Pour point, ℃	??-20	??-12
??n-d-m
			Molecular weight, gm/mol (VPO)	??540	??697
Density, gm/ml	??0.8222	??0.8317
			Refractive index	??1.459	??1.4636
Alkane belongs to carbon, %	??95.47	??93.44
			Cycloalkanes belongs to carbon, %	??4.53	??6.56
Aromatics carbon, %	??0.00	??0.00
			Oxidizer BN, h	??42.07	??35.27
Sulphur, ppm	??＜2	??＜1
			Nitrogen, ppm	??＜0.1	??＜0.1
??Noack，wt％	??2.49	??1
			The COC flash-point, ℃	??258	??210
??SIMDIST?TBP(WT％)，F
			??TBP@0.5	??805	??879
??TBP@5	??836	??935
			??TBP@10	??850	??963
??TBP@20	??869	??997
			??TBP@30	??884	??1021
??TBP@40	??897	??1042
			??TBP@50	??913	??1060
??TBP@60	??930	??1079

Character	??MGTL	??HGTL
			??TBP@70	??947	??1099
??TBP@80	??973	??1122
			??TBP@90	??1004	??1153
??TBP@95	??1033	??1175
			??TBP@99.5	??1078	??1219
??FIMS
			Saturates	??73.1	??69.7
1-is unsaturated	??26.5	??29.6
			2-is unsaturated	??0.2	??0.7
3-is unsaturated	??0	??0
			4-is unsaturated	??0	??0
5-is unsaturated	??0	??0
			6-is unsaturated	??0.2	??0
Alkene % by proton N MR mensuration	??1.38	??2

For the purpose of this specification sheets and claims, unless indicate in addition, other used number of all numbers of expression amount, per-cent or ratio and specification sheets and claim all is interpreted as doing modification with term " about " in all cases.Therefore, unless opposite expressing arranged, the listed numerical parameter of following specification sheets and claims is an approximation, can change according to the precision that will manage the desirable properties that obtains by the present invention and/or measure the instrument of this value, therefore comprise being used for measuring the instrument of this value or the standard error deviation of method.Term in the claim " or " use be used for meaning " and/or ", select one and refer to or surrogate is foreclosed mutually unless spell out.In claim and/or specification sheets, when term " a kind of " or " one " " comprise " when being used in combination with term, can refer to " a kind of ", but it is consistent with " one or more ", " at least a " and " a kind of or more than a kind of " also.In addition, all scopes disclosed herein are to comprise also can independently making up of end points.Usually, except as otherwise noted, singular elements can be used for plural meaning and vice versa, and does not lose generality.Term used herein " comprises " and its literal variant mean infinite so that the clauses and subclauses that exemplify out are not got rid of other similar clauses and subclauses that can replace or add listed clauses and subclauses in the tabulation.

Plan to make and to carry out or to use for any other embodiment of the present invention aspect in the context of one embodiment of the invention, discussed of the present invention any.Similarly, any composition of the present invention can be that the result of any method of the present invention or technology maybe can be used for any method of the present invention or technology.The specification sheets of being write comes open the present invention with embodiment, comprises optimal mode, also can make any those skilled in the art's practice and use the present invention.Claim is defined by the claims, and can comprise thinkable other embodiment of those skilled in the art.If their the formation element and the word language of claim do not have difference, perhaps they comprise the equivalence formation element that does not have essential difference with the claim word language, and these other embodiment also will be included in the claim scope.By reference all references mentioned in this article is included in herein clearly.

Claims (24)

1. slideway lubricant compositions comprises:

A) base oil, this base oil comprise at least a isomerized base oil, and described isomerized base oil has the successive carbonatoms and belongs to carbon less than the cycloalkanes that n-d-M measures that passes through of 10wt%,

B) at least a additive of 0.001-10wt%, described additive is selected from: additive-package, oxidation retarder, high pressure agent, friction improver, adhesion additive, antiwear agents, metal passivator, defoamer, emulsion splitter and their mixture;

Wherein said lubricant compositions contains the isomerized base oil of capacity, so that described composition is separating with water in less than 60 minutes under 54 ℃ according to ASTM D-1401-2002 survey.

2. the composition of claim 1, wherein said emulsion splitter exists with the amount less than 1wt%.

3. the composition of claim 1, wherein said emulsion splitter exists with the amount less than 0.5wt%.

3. the composition of claim 1, wherein said composition is separating with water in less than 45 minutes under 54 ℃ according to ASTM D-1401-2002 survey.

3. the composition of claim 2, wherein said composition is separating with water in less than 30 minutes under 54 ℃ according to ASTM D-1401-2002 survey.

5. the composition of claim 3, wherein said composition is separating with water in less than 15 minutes under 54 ℃ according to ASTM D-1401-2002 survey.

6. the composition of claim 1, the isomerized base oil of wherein said capacity is 95-99.999wt%.

7. the composition of claim 1, wherein said base oil also comprise at least a in oligopolymer, ester, synthetic hydrocarbon oil and their mixture of at least a mineral oil, alhpa olefin.

8. the composition of claim 7, wherein said base oil comprise at least a in oligopolymer, ester, synthetic hydrocarbon oil and their mixture of at least a mineral oil, alhpa olefin of 5-95wt%.

9. the composition of claim 1, wherein isomerized base oil is the Fischer-tropsch derived base oil of being made by waxy feeds, the molecular-weight average of the base oil that this is Fischer-tropsch derived is between 600 and 1100, and the average degree of branching in the molecule is between 6.5 and 10 per 100 carbon atoms of alkyl branches.

10. the composition of claim 1, wherein said composition satisfy for Cincinnati rice clarke dragon specification P47, the P50 of class 68,220 and 32 and at least one among the P53.

11. the composition of claim 1, the wt%Noack volatility of wherein said isomerized base oil is between 0 and 100.

12. the composition of claim 1, the spontaneous ignition temperature of wherein said isomerized base oil (AIT) are greater than by the defined amount of following formula: 1.6 * (kinematic viscosity under 40 ℃ is with mm ²/ s meter)+300.

13. the composition of claim 1, the spontaneous ignition temperature of wherein said isomerized base oil (AIT) greater than 329 ℃ and Noack volatility less than by the defined amount of following formula: 160-40 (kinematic viscosity under 100 ℃).

14. the composition of claim 1, (kinematic viscosity under 100 ℃ is with mm greater than 28 * Ln for the viscosity index of wherein said isomerized base oil ²/ s meter)+300.

15. the composition of claim 1, wherein said isomerized base oil have greater than 15 have mononaphthene belong to functional group molecule weight percent with have polynaphthene and belong to the ratio of weight percent of the molecule of functional group.

16. the composition of claim 1, wherein said isomerized base oil is made by such method, use the wax of selecting the shape molecular sieve of medium pore size and under about 600-750 condition, high alkane being belonged to that comprises the noble metal hydrogenation component to carry out hydroisomerization in this method, and the Noack volatility of wherein said isomerized base oil is less than 50wt%

17. the composition of claim 1, the viscosity index of wherein said isomerized base oil is greater than by the defined amount of following formula: 28 * Ln (kinematic viscosity under 100 ℃)+95.

18. the composition of claim 1, the kinematic viscosity＞1.808mm of wherein said isomerized base oil under 100 ℃ ²/ s and Noack volatility are less than the amount of being calculated by following formula: 1.286+20 (kv100) ^-1.5+ 551.8e ^-kv100, wherein kv100 is the kinematic viscosity under 100 ℃.

19. the composition of claim 1, wherein said isomerized base oil comprise the aromatic substance that cycloalkanes belongs to the molecule of functional group and is less than 0.30wt% that has more than 3wt%.

20. the composition of claim 1, wherein said isomerized base oil comprise greater than 10wt% and less than the whole molecules that cycloalkanes belongs to functional group that have of 70wt%.

21. the composition of claim 1, wherein said isomerized base oil is 15mm in kinematic viscosity ²/ s and slides/rolls are than being that the drag coefficient measured in 40% o'clock is less than 0.023.

22. make the method for way lubricants breakdown of emulsion, described method comprises the isomerized base oil that adds capacity to the base oil that generally is used for preparing this way lubricants, so that described lubricant is separating with water in less than 60 minutes under 54 ℃ according to ASTM D-1401-2002 survey, wherein said isomerized base oil has the successive carbonatoms and belongs to carbon less than the cycloalkanes that n-d-M measures that passes through of 10wt%.

23. the method for claim 26, the wherein said base oil that generally is used to prepare described way lubricants is I class, II class, III class or IV class base oil.

24. make the method for way lubricants breakdown of emulsion, described method comprises that preparation comprises the base oil of the isomerized base oil of capacity, so that described lubricant is separating with water in less than 60 minutes under 54 ℃ according to ASTM D-1401-2002 survey, wherein said isomerized base oil has the successive carbonatoms and belongs to carbon less than the cycloalkanes that n-d-M measures that passes through of 10wt%.

25. the method for claim 26, wherein said method comprises that also at least a additive with 0.001-10wt% is blended into the step in the described base oil, and wherein said additive is selected from: additive-package, oxidation retarder, high pressure agent, friction improver, adhesion additive, antiwear agents, metal passivator, defoamer, emulsion splitter and their mixture.