Lubricating oil composition

FIELD: chemistry.

SUBSTANCE: present invention relates to a lubricating oil composition containing: (A) base oil, kinematic viscosity of which at 100 C varies from 1.4 to 6 mm2/s, (B) from 250 to 2,000 ppm in terms of molybdenum of a molybdenum dialkyldithiocarbamate of formula (1), where R1-R4 denote alkyl groups, and X1-X4 denote oxygen atoms or sulphur atoms, (C) from 20 to 500 ppm in terms of sulphur of tetrabenzyl thiuram disulphide of formula (2) and (D) from 0.05 to 3.0 wt% of amine of formula (3) or formula (4), where R5-R7 both independently, denote hydrogen or alkyl, aryl or alkyl aryl group having from 1 to 23 carbon atoms, where (4) R8 and R9 both independently denote hydrogen or alkyl, aryl or alkyl aryl group containing 1 to 23 carbon atoms. Present invention relates to use of lubricating oil composition (versions).

EFFECT: technical result of present invention is minimisation of effect on equipment for treating exhaust gases and catalysts as a result of reduction, as much possible, amounts of contained MoDTC compounds and sulphur compounds thus creating, even in case of presence of latter in trace quantities, a lubricating oil composition, which demonstrates excellent effect on reduction of friction for a long period of time, and which is characterised by high degree of fuel saving.

10 cl, 4 tbl

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: present invention relates to a lubricant composition which includes base oil and one or more additives, wherein the composition includes a detergent additive which is a reaction product of an acidic organic compound, a boron compound and a basic organic compound of general formula where a equals 1 or 2 and where R1 and R2 are independently selected from hydrocarbon groups, provided that when a equals 2, groups R1 and R2 are selected independently, and has sulphate ash content (according to ASTM D 874) of at least 0.1 wt % and at most 0.60 wt %; and a total base number (TBN) (according to ASTM D 2896) of at least 8.0 mg KOH/g and at most 15.0 mg KOH/g, potassium content (according to ASTM D 4951) higher than 0.10 wt % and at most 0.15 wt %.

EFFECT: present invention relates to use of a lubricant composition in a gas engine to improve oxidation resistance and maintain the base number.

5 cl, 3 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a lubricant composition for use in a crank case, which contains base oil and at least one additive, wherein the base oil contains more than 80 wt % base oil produced via a Fischer-Tropsch method. The lubricant composition has kinematic viscosity lower than 5.6 cSt at 100C (ASTM D 445 test), Noack volatility (ASTM D 5800 test) lower than 15 wt % and high temperature and high shear (HTHS) viscosity (ASTM D 4683) lower than 2.0 cP. The invention also relates to use of said lubricant composition in a crank case to improve fuel efficiency.

EFFECT: obtaining a low-viscosity lubricant composition, which simultaneously has desirable properties for saving fuel, desirable anti-wear properties and Noack volatility properties.

10 cl, 3 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to plastic lubricant, including deeply-purified waste industrial oil, soap thickening agent, anti-wear additive and anti-friction filling agent with the following component ratio, wt %: SFA 28-30; lime 2-3; DP-11 4-5; graphite of grade GL 10-12; DWIO - the remaining part. Claimed invention also relates to method of obtaining plastic lubricant.

EFFECT: increase of lubricant quality, its anti-wear properties, reduction of prime cost, simplification of manufacturing process, improvement of the environment due to application of wastes - waste oils.

2 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to a lubricant composition for use in a turbine engine, the composition containing: (i) 50-99 wt % base oil; (ii) 0.01-5 wt % ionic liquid and (iii) 0.01-10 wt % additives, wherein the freezing point is lower than -54C, the flash point is higher than 246C, and kinematic viscosity at 100C is in the range of 4.9 mm2/s to 5.4 mm2/s. The present invention also relates to use of the lubricant composition to lubricate a turbine engine and to use of an ionic liquid (version).

EFFECT: obtaining a lubricant composition suitable for use in turbine engine oil and for reducing formation of deposits in the lubricant composition.

11 cl, 18 ex, 7 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of producing lignosulphonate-containing lubricants, which includes: a) a step of mixing: at least one base oil, at least one calcium soap of a saturated or unsaturated monocarboxylic acid containing 10-32 carbon atoms, optionally substituted, at least one complexing agent selected from: i) an alkali metal salt, except a sodium salt, an alkali-earth metal salt or an aluminium salt of a saturated or unsaturated monocarboxylic acid or a hydroxy carboxylic acid containing 2-8 carbon atoms, a dicarboxylic acid containing 2-16 carbon atoms, wherein each of said acids can be substituted, ii) an alkali and/or alkali-earth metal salt of boric acid and/or phosphoric acid, including products of reaction thereof with LiOH and/or Ca(OH)2, and iii) mixtures thereof, and at least calcium lignosulphonate with weight-average molecular weight higher than 10000 g/mol, heating the mixture to temperature higher than 120C to initiate the reaction and removing low-boiling components to obtain a lubricant base, and b) a step of cooling and adding base oil and, optionally, additives while stirring. The present invention also relates to a lubricant composition and to use of the lubricant (versions).

EFFECT: use of lignosulphonates as structure-forming agents and as additives which protect from wear, reduce friction and protect from aging.

29 cl, 10 ex, 3 tbl

FIELD: chemistry.

SUBSTANCE: present invention refers to a process fluid for a heat exchanging unit containing i) CO2, as a refrigerant, and ii) a lubricant composition of polyol esters having a viscosity ratio of 130 or higher, containing a mixture of esters of formula I, wherein n represents an integer from 1 to 20; each R independently represents alkylcarbonyl with 3-12 carbon atoms; each R1 is specified independently and represents either group R, or a substitute of formula II, and wherein at least 50% of all groups R in the compounds of formula I found in the process fluid represent n-pentanoyl, and wherein the lumbicant composition of polyol esters ii) contains: a) from 20 to 45 wt % of the compounds of formula I, wherein n is equal to 1 and each R1 is specified independently and represents a group R, b) from 15 to 20 wt % of the compounds of formula I, wherein n is equal to 2 and each R1 is specified independently and represents the group R, c) from 10 to 15 wt % of the compounds of formula I, wherein n is equal to 3 and each R1 is specified independently and represents the group R, and d) from 30 to 55 wt % of the compositions of formula I, which represent pentaerythritol oligomers of 4 or more monomer groups of pentaerythritol.

EFFECT: technical effect of the present invention is producing the process fluid containing the lubricant of polyol esters providing the excellent viscosity and lubricating property together with the unexpectedly excellent mixability with the CO2 refrigerant.

7 cl, 5 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: protective lubricant for metal components includes waste mineral motor oil. The lubricant additionally contains products of waste mineral motor oil oxidation, which consist of neutral resins and asphaltenes, with the following component ratio, wt %: waste mineral motor oil 605; products of mineral motor oil oxidation 405.

EFFECT: increase of the corrosion stability of metal components when they are stored on an open site and simplification of the component composition of the lubricant.

4 tbl

FIELD: chemistry.

SUBSTANCE: solid lubricant composition contains a finely dispersed mixture of natural minerals with particle size of 1-5 mcm, which includes serpentine and talc; the composition further contains chalk, kaolin and borax, with the following ratio of components, wt %: chalk - 10-15, borax - 10-15, kaolin - 5-20, talc - 5-15, serpentine - the balance.

EFFECT: improved anti-friction and anti-wear properties of friction assemblies by forming a protective servovite film on friction surfaces, improved wear resistance and longevity of said surfaces.

1 tbl

Preservation grease // 2553001

FIELD: chemistry.

SUBSTANCE: preservation grease contains petroleum oil, a nitrogen-containing anticorrosion additive and a boron-containing additive, wherein the nitrogen-containing anticorrosion additive is a mixture of a condensation product of monoethanolamine, boric acid, pentaerythritol and oleic acid in molar ratio of 1.5:0.2:(0.2-0.4):1.5, respectively, and an azole compound, and the boron-containing additive is a reaction product of glycidyl methacrylate and boric acid in molar ratio of 0.5:1, with the following ratio of components, wt %: condensation product 30.0-50.0; azole compound 4.0-8.0; reaction product 4.0-8.0; petroleum oil up to 100.

EFFECT: improved preservation properties of the grease, prolonged protective effect, wide range of preservation greases.

2 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to application of sulphided lignin as anti-scuff additive in lubricating composition.

EFFECT: extension of areas of sulphided lignin application, application of sulphided lignin for wear reduction in wheel-rail pair.

1 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to a lubricant composition which includes base oil and one or more additives, wherein the composition includes a detergent additive which is a reaction product of an acidic organic compound, a boron compound and a basic organic compound of general formula where a equals 1 or 2 and where R1 and R2 are independently selected from hydrocarbon groups, provided that when a equals 2, groups R1 and R2 are selected independently, and has sulphate ash content (according to ASTM D 874) of at least 0.1 wt % and at most 0.60 wt %; and a total base number (TBN) (according to ASTM D 2896) of at least 8.0 mg KOH/g and at most 15.0 mg KOH/g, potassium content (according to ASTM D 4951) higher than 0.10 wt % and at most 0.15 wt %.

EFFECT: present invention relates to use of a lubricant composition in a gas engine to improve oxidation resistance and maintain the base number.

5 cl, 3 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to plastic lubricant, including deeply-purified waste industrial oil, soap thickening agent, anti-wear additive and anti-friction filling agent with the following component ratio, wt %: SFA 28-30; lime 2-3; DP-11 4-5; graphite of grade GL 10-12; DWIO - the remaining part. Claimed invention also relates to method of obtaining plastic lubricant.

EFFECT: increase of lubricant quality, its anti-wear properties, reduction of prime cost, simplification of manufacturing process, improvement of the environment due to application of wastes - waste oils.

2 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to a lubricant composition for use in a turbine engine, the composition containing: (i) 50-99 wt % base oil; (ii) 0.01-5 wt % ionic liquid and (iii) 0.01-10 wt % additives, wherein the freezing point is lower than -54C, the flash point is higher than 246C, and kinematic viscosity at 100C is in the range of 4.9 mm2/s to 5.4 mm2/s. The present invention also relates to use of the lubricant composition to lubricate a turbine engine and to use of an ionic liquid (version).

EFFECT: obtaining a lubricant composition suitable for use in turbine engine oil and for reducing formation of deposits in the lubricant composition.

11 cl, 18 ex, 7 tbl

Grease // 2552989

FIELD: chemistry.

SUBSTANCE: invention relates to grease containing a mixture of two oils, one of which is industrial, lithium soap of 12-oxystearic acid, polytetrafluoroethylene and polysiloxane liquid, a suspension of copper stearate and acetate in castor oil, which additionally contains caprolactam oligomer-modified graphite with the ratio of components of 1:0.1:0.1:4-1:0.3:0.3:6, and the second oil is rape-seed oil, with the following ratio of components, wt %: lithium soap of 12-oxystearic acid - 9-19; polytetrafluoroethylene - 2-6; polysiloxane liquid - 16-27; suspension of modified copper stearate and acetate in castor oil in ratio of 1:0.1:0.1:4-1:0.3:0.3:6 - 1.5-6; rape-seed oil - 15-22; industrial oil - the balance.

EFFECT: obtaining grease having a high dropping point, low thermohardening, high tearing and welding load.

3 ex, 1 tbl

Lubricating rod // 2552111

FIELD: chemistry.

SUBSTANCE: invention relates to a lubricating rod, which consists of an envelope filled with a lubricating composition containing bitumen and graphite, wherein the lubricating composition further includes aqueous calcium sulphate, with the following ratio of components, wt %: bitumen 20-40, graphite 10-30, calcium sulphate to 100.

EFFECT: easy application of lubricating rod at subzero temperatures by changing the physical properties of the lubricating composition filling the envelope of the rod, owing to optimisation of the composition thereof.

1 tbl

FIELD: chemistry.

SUBSTANCE: present invention refers to a lubricant composition of synthetic turbine oil for steam turbine plants which contains a base consisting of a mixture of base components: polyalphaolefins having a viscosity of 5.6-6.1 mm2/s at 100C and trimethylol propanol ester of carboxylic acids C6-C12 having a viscosity of 3.9-4.1 mm2/s at 100C and a flash point of more than 240C, in ratio of polyalphaolefins and polyester 55.0-60.0:35.0-40.0 wt % respectively, as well as a complex of multi-functional additives per 100% of the base, which contains the additives as follows: anti-wear additives - liquid ash-free thiophosphate 3-(diisobutyloxythiophosphoryl sulphanyl)-2-methyl propionic acid; liquid ash-free triphenylphosphothionates liquid - a mixture of triphenylthiophosphate and tert-butylphenyl derivatives; dicarboxylic acid dibutyl ester having a viscosity of 260 mm2/s at 100C and 4,100 mm2/s at minus 40C and a molecular weight of approximately 4,500 Ketjenlube 1,300; antioxidants - dioctyldiphenylamine; a high-molecular phenol additives - tetrakis methylene[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]methane, Irganox L-101; tris-di-tert-butylphenyl-phosphite; a metal deactivator - a tolutriazole derivative - a mixture of N-bis(2-ethylhexyl) aminomethyltolutriazol isomers; a corrosion inhibitor - alkylene-succinic acid half-ester having a viscosity of 26-40 mm2/s at 100C and an anti-foam additive - a non-ionic aromatic and aliphatic hydrocarbon surfactant, Synative AC AMH2.

EFFECT: producing the synthetic turbine oil possessing the high antioxidative property, low hydroscopic property, demulsibility, corrosion resistance and anti-wear properties.

3 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to microcapsules, containing borates of alkali metals, method of their obtaining, as well as to lubricating oils, used as transmission lubricating materials, containing said microcapsules as anti-scuffing and/or anti-wear additives. Microcapsules include core, containing one or more of borates of alkali metals, possibly hydrated, dispersed in one or more basic lubricating oils of mineral, synthetic or natural origin, and polymer envelope. Microcapsules are obtained by method of on-surface polymerisation.

EFFECT: invention makes it possible to obtain microcapsules, containing borates of alkali metals, which make it possible to avoid phenomenon of crystallisation of borates of alkali metals in presence of water, and therefore, makes it possible to use lubricating composition, containing thereof, use, for instance, in gearbox, which does not have sealing system.

24 cl, 1 tbl, 3 ex

FIELD: metallurgy.

SUBSTANCE: invention relates to product for hot pressure treatment of metals; the product is powder mixture of non-organic melting components, average size of particles is maximum 500 micron, mixture contains phosphate, borax and halide components. The phosphate components are selected from group of sodium or potassium phosphate, or their mixtures, the boron components are selected from group including boracic acid, boric anhydride, sodium metaborate and their mixtures; halide components are selected from group of alkali and/or alkali-earth metals, at that ratio between the phosphate and halide components is determined by the equation (1): 2.0 < Ph:H < 75, where Ph - total content of phosphate components, wt %; H - total content of halide components, wt %.

EFFECT: quality improvement of manufactured products, tool resistance and environment ecology improvement.

15 cl, 2 tbl

Rolling oils // 2536468

FIELD: chemistry.

SUBSTANCE: claimed invention relates to rolling oil which includes: from 50 to 90 wt %, with respect to the total weight of liquid for rolling oil, hydrocarbon base (a), including at least 50 wt % of isoparaffins, from 5 to 20 wt %, with respect to the total weight of rolling oil, of one or several friction modifiers (b), selected from fatty alcohols, fatty acids, fatty amines, esters of fatty acids or polyesters, obtained by esterification of copolymers of alpha-olefins and dibasic carboxylic acids with alcohols, from 0.5 to 0.7 wt %, with respect to the total weight of rolling oil, one or more anti-wear and/or antiscuff phosphorus-containing additives, selected from organophosphorus compounds, derivatives of phosphorous acid (c), with content of phosphorus in said oil, measured in accordance with NFT 60-106 standard, constituted at least 500 ppm. Claimed invention also relates to water emulsion, containing rolling oil, and to method of cold steel rolling (versions).

EFFECT: obtaining rolling oils, which when applied will increase efficiency of rolling mills and improve surface condition.

15 cl, 3 ex, 6 tbl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a solid lubricant material for abrasive processing, which contains stearic acid, molybdenum disulphide, additionally contains superdispersed powder of diatomite, soaked with mineral oil with surface-active substances and chemically-active additives and superdispersed powder of a diamond-graphite charge with the following component ratio, wt %: diatomite powder - 15 - 25; molybdenum disulphide 10-15; diamond-graphite charge powder - 0.1-1; stearic acid - the remaining part.

EFFECT: increase of the abrasion productivity and quality of abraded components, increased the resistance period of an abrasive instrument.

1 tbl

FIELD: lubricants.

SUBSTANCE: lubricating composition, especially appropriate for two-stroke engines, contains 90-20% of base lubricating oil, 10-80% (on sum of two components) of fatty acid C1-C4-alkyl ester, and 0.1-20% (on sum of all components) of lubricating oil additive. Invention also discloses a method of supplying lubricating composition separately from fuel and a method, wherein fuel composition for two-stroke engine includes indicated lubricating composition for common supply.

EFFECT: improved environmental condition.

19 cl, 4 tbl, 4 ex

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