EP2494014B1 - Composition de lubrification - Google Patents

Composition de lubrification Download PDF

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Publication number
EP2494014B1
EP2494014B1 EP10771723.3A EP10771723A EP2494014B1 EP 2494014 B1 EP2494014 B1 EP 2494014B1 EP 10771723 A EP10771723 A EP 10771723A EP 2494014 B1 EP2494014 B1 EP 2494014B1
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EP
European Patent Office
Prior art keywords
detergent
lubricating composition
koh
lubricating
present
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EP10771723.3A
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German (de)
English (en)
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EP2494014A1 (fr
Inventor
Jose Luis Garcia Ojeda
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Shell Internationale Research Maatschappij BV
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Shell Internationale Research Maatschappij BV
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M157/00—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential
    • C10M157/06—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential at least one of them being a sulfur-, selenium- or tellurium-containing compound
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/08—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic sulfur-, selenium- or tellurium-containing compound
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C10M159/22—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing phenol radicals
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C10M159/24—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing sulfonic radicals
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/045—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and non-macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/028—Overbased salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/28—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/046—Overbasedsulfonic acid salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/04—Detergent property or dispersant property
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/52—Base number [TBN]
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines

Definitions

  • the present invention relates to a lubricating composition, in particular to lubricating compositions for use in internal combustion engines operated under sustained high load conditions, such as marine diesel engines and power applications. More particularly, the present invention relates to a marine lubricant.
  • EP 1 086 195 discloses a marine cylinder oil composition comprising a lubricating base oil and an over-based detergent component, the composition having a TBN of 50-90, and the detergent component comprising an over-based calcium sulphonate having a viscosity of at least 180 cSt at 100°C and a TBN of about 400 or more.
  • WO 2006/014866 relates to a method of lubricating an internal combustion engine by monitoring engine performance and adding an additive package accordingly, as well as a composition suitable for this method.
  • This document discloses examples containing phenate detergents and sulphonate detergents.
  • Lubricating compositions for use in internal combustion engines are subject to high levels of stress. It is important that the lubricating composition provides good lubrication properties under a variety of conditions, and amongst other properties, helps to keep the engine clean, to be thermally and oxidatively stable, to provide good wear, corrosion protection and to carry heat away from the engine.
  • Lubricating compositions used in marine diesel engines are subject to particularly high levels of stress due to the fact that marine engines are usually run continuously at near full load conditions for long periods of time, often in remote locations.
  • the lubricating compositions are expected to have long lifetimes since there is often little or no opportunity for changing the lubricating compositions in a marine engine.
  • marine does not restrict such engines to those used in water-borne vessels. That is to say, in addition said term also includes engines used for power generation applications. These highly rated, fuel efficient, slow- and medium-speed marine and stationary diesel engines operate at high pressures, high temperatures and long-strokes.
  • a lubricating composition at least comprising:
  • the lubricating compositions according to the present invention exhibit improved deposit formation control properties as determined according to DIN 51392 and the Komatsu Hot Tube Test.
  • base oil used in lubricating composition according to the present invention there are no particular limitations regarding the base oil used in lubricating composition according to the present invention, and various conventional mineral oils, synthetic oils as well as naturally derived esters such as vegetable oils may be conveniently used.
  • the base oil used in the present invention may conveniently comprise mixtures of one or more mineral oils and/or one or more synthetic oils; thus, according to the present invention, the term "base oil” may refer to a mixture containing more than one base oil.
  • Mineral oils include liquid petroleum oils and solvent-treated or acid-treated mineral lubricating oil of the paraffinic, naphthenic, or mixed paraffinic/naphthenic type which may be further refined by hydrofinishing processes and/or dewaxing.
  • Suitable base oils for use in the lubricating oil composition of the present invention are Group I-III mineral base oils, Group IV poly-alpha olefins (PAOs), Group I-III Fischer-Tropsch derived base oils and mixtures thereof.
  • Group I lubricating oil base oils according to the definitions of American Petroleum Institute (API) for categories I-IV. These API categories are defined in API Publication 1509, 15th Edition, Appendix E, April 2002 .
  • Fischer-Tropsch derived base oils are known in the art.
  • Fischer-Tropsch derived is meant that a base oil is, or is derived from, a synthesis product of a Fischer-Tropsch process.
  • a Fischer-Tropsch derived base oil may also be referred to as a GTL (Gas-To-Liquids) base oil.
  • Suitable Fischer-Tropsch derived base oils that may be conveniently used as the base oil in the lubricating composition of the present invention are those as for example disclosed in EP 0 776 959 , EP 0 668 342 , WO 97/21788 , WO 00/15736 , WO 00/14188 , WO 00/14187 , WO 00/14183 , WO 00/14179 , WO 00/08115 , WO 99/41332 , EP 1 029 029 , WO 01/18156 and WO 01/57166 .
  • Synthetic oils include hydrocarbon oils such as olefin oligomers (including polyalphaolefin base oils; PAOs), dibasic acid esters, polyol esters, polyalkylene glycols (PAGs), alkyl naphthalenes and dewaxed waxy isomerates.
  • hydrocarbon oils such as olefin oligomers (including polyalphaolefin base oils; PAOs), dibasic acid esters, polyol esters, polyalkylene glycols (PAGs), alkyl naphthalenes and dewaxed waxy isomerates.
  • Synthetic hydrocarbon base oils sold by the Shell Group under the designation "Shell XHVI" (trade mark) may be conveniently used.
  • Poly-alpha olefin base oils PAOs
  • Preferred poly-alpha olefin base oils that may be used in the lubricating compositions of the present invention may be derived from linear C 2 to C 32 , preferably C 6 to C 16 , alpha olefins.
  • Particularly preferred feedstocks for said poly-alpha olefins are 1-octene, 1-decene, 1-dodecene and 1-tetradecene.
  • the total amount of base oil incorporated in the lubricating composition of the present invention is preferably present in an amount in the range of from 60 to 99 wt.%, more preferably in an amount in the range of from 65 to 98 wt.% and most preferably in an amount in the range of from 70 to 95 wt.%, with respect to the total weight of the lubricating composition.
  • the base oil comprises at least 50 wt.%, preferably at least 60 wt.%, more preferably at least 70 wt.% of a Group II base oil, based on the total amount of base oil.
  • detergent may refer to a single detergent, but also to a mixture containing two or more different detergents.
  • detergents include oil-soluble neutral and over-based sulphonates, phenates, sulphurized phenates, thiophosphonates, salicylates and naphthenates and other oil-soluble carboxylates of a metal, particularly the alkali or alkaline earth metals, e.g. sodium, potassium, lithium, and in particular calcium and magnesium.
  • Preferred metal detergents are neutral and over-based detergents having a TBN (Total Base Number; according to ASTM D2896) of up to 450 mg KOH/g. Combinations of detergents, whether over-based or neutral or both, may be used.
  • the detergent comprises at least 30 mol%, based on the total amount of detergent, of a sulphonate detergent having a BN (Base Number) of from 0.1 to 80 mg KOH/g.
  • BN Base Number
  • This type of sulphonate detergents having a relatively low BN are well known in the art; as an example WO 96/26919 discloses low BN calcium sulphonates, and the preparation thereof.
  • the detergent comprises at least 35 mol% of the sulphonate detergent, preferably at least 40 mol%, more preferably at least 45 mol%, even more preferably at least 50 mol.%, most preferably at least 55 mol%. Also it is preferred that the sulphonate detergent has a BN of at most 50 mg KOH/g, more preferably at most 40 mg KOH/g.
  • the detergent comprises from 30 to 70 mol%, based on the total amount of detergent, of a phenate detergent.
  • the detergent comprises at least 35 mol% of the phenate detergent; preferably the detergent comprises at most 65 mol% of the phenate detergent, more preferably at most 60 mol%, even more preferably at most 55 mol%, yet even more preferably at most 50 mol%, most preferably at most 45 mol% of the phenate detergent.
  • the phenate detergent is an over-based detergent having a BN of at least 190 mg KOH/g, preferably at least 200, more preferably at least 220, most preferably at least 240 mg KOH/g. Such detergents are well-known in the art.
  • the total amount of the detergent in the compositions of the invention is typically at most 35.0 wt.%, based on the total weight of the lubricating composition.
  • the composition of the present invention comprises at least 8 wt.%, preferably at least 12 wt.%, based on the total weight of the composition.
  • the lubricating composition according to the present invention may further comprise one or more other additives such as anti-oxidants, anti-wear additives, dispersants, other detergents, extreme pressure additives, other friction modifiers, viscosity modifiers, pour point depressants, metal passivators, corrosion inhibitors, demulsifiers, anti-foam agents, seal compatibility agents and additive diluent base oils, etc.
  • additives such as anti-oxidants, anti-wear additives, dispersants, other detergents, extreme pressure additives, other friction modifiers, viscosity modifiers, pour point depressants, metal passivators, corrosion inhibitors, demulsifiers, anti-foam agents, seal compatibility agents and additive diluent base oils, etc.
  • at least a dispersant is present in the compositions according to the present invention; more preferably, at least a dispersant and an anti-wear additive are present.
  • the above-mentioned additives are typically present in an amount in the range of from 0.01 to 35.0 wt.%, based on the total weight of the lubricating composition, preferably in an amount in the range of from 0.5 to 30.0 wt.%, based on the total weight of the lubricating composition. More preferably, the lubricating composition according to the present contains less than 5.0 wt.% of any other additives than one or more detergents. Preferably, the composition contains no other additives than one or more detergents, one or more dispersants and one or more anti-wear agents.
  • the composition has a Total Base Number (TBN) value of at most 75 mg KOH/g, preferably at most 70 mg KOH/g, more preferably at most 65 mg KOH/g, even more preferably at most 60 mg KOH/g (in particular according to ASTM D 2896).
  • TBN Total Base Number
  • the composition has a total base number (TBN) value (according to ASTM D 2896) of at least 10 mg KOH/g.
  • the composition has a kinematic viscosity at 100°C (according to ASTM D 445) of above 5.6 mm 2 /s and below 21.9 mm 2 /s, preferably above 12.5 mm 2 /s, more preferably above 16.3 mm 2 /s.
  • the lubricating compositions of the present invention may be conveniently prepared by admixing the one or more additives with the base oil(s).
  • the present invention provides the use of a lubricating composition according to the present invention in order to improve deposit formation control properties, in particular as determined according to DIN 51392.
  • the lubricating compositions according to the present invention are useful for lubricating apparatus generally, but in particular for use as engine oils for internal combustion engines.
  • engine oils include passenger car engines, diesel engines, marine diesel engines, gas engines, two- and four-cycle engines, etc., and in particular marine diesel engines.
  • Table 1 indicates the composition and properties of the formulations that were tested; the amounts of the components are given in wt.%, based on the total weight of the fully formulated formulations.
  • All the tested marine cylinder oil formulations contained a combination of a base oil, a detergent combination and a dispersant.
  • Base oil 1 was a base oil blend of a Group I base oil and Bright Stock, commercially available from Shell Chemicals Ltd. (London, United Kingdom) under the trade designation "Catenex”.
  • Base oil 2 was a base oil blend containing a thickener and 75 wt.% of a Group II base oil; the blend is commercially available from Chevron Products Company (San Ramon, CA, USA) under the trade designation "Chevron 600 R”.
  • Detergent 1 was an over-based sulphonate detergent having a TBN.of 417 mg KOH/g (according to ASTM D 2896) and a soap content of 236 mM Ca 2+ , commercially available from Chevron Oronite (Windsor, UK) under the trade designation "OLOA 249SX”.
  • Detergent 2 was an over-based sulphonate detergent having a TBN of 375 mg KOH/g and a soap content of 317 mM Ca 2+ , commercially available from JinZhou KangTai Lubricant Additives Co. Ltd. (Liaoning, China) under the trade designation "T106".
  • Detergent 3 was an over-based phenate detergent having a TBN of 246 mg KOH/g and a soap content of 397 mM Ca 2+ , commercially available from Lubrizol (Wickliffe, Ohio, USA) under the trade designation "Lubrizol 6499".
  • Detergent 4" was an over-based phenate detergent having a TBN of 250 mg KOH/g and a soap content of 282 mM Ca 2+ , commercially available from Chevron Oronite under the trade designation "OLOA 219C”.
  • Detergent 5" was a low BN sulphonate detergent having a TBN of 16 mg KOH/g and a soap content of 410 mM Ca 2+ , commercially available from Chevron Oronite under the trade designation "OLOA 246S”.
  • Detergent 6 was a low BN sulphonate detergent having a TBN of 34 mg KOH/g and a soap content of 395 mM Ca 2+ , commercially available from Chemtura Corporation (Middlebury, USA) under the trade designation "LOBASE C-4503".
  • Detergent 7 was a low BN sulphonate detergent having a TBN of 9 mg KOH/g and a soap content of 441 mM Ca 2+ , commercially available from Chemtura Corporation under the trade designation "LOBASE C-4506".
  • the "dispersant” was a high MW polyisobutene succinimide, commercially available from Afton Chemical Corporation (Richmond, VA, USA) under the trade designation "HiTEC”.
  • compositions of Examples 1-10 and Comparative Examples 1-2 were obtained by mixing the base oils with the detergents, dispersant using conventional lubricant blending procedures.
  • test duration 12 hours; plate temperature at 280°C
  • test conditions 150 ml of oil flow in a closed loop was used; the oil under test was pumped in the form of a thin film for 12 hours at 280°C at a flow rate of 50 ( ⁇ 5) ml/h over a removable test strip which strip was inclined at an angle of 8° to the horizontal.
  • the measured normalized deposits are indicated in Table 1 above, indicating the relative amount compared to the example having the highest amount of total deposits (viz. Comparative Example 2).
  • the Komatsu Hot Tube Test evaluates the high temperature stability of a lubricant. Oil droplets are pushed up by air inside a heated narrow glass capillary tube and the thin film oxidative stability of the lubricant is measured by the degree of lacquer formation on the glass tube, the resulting colour of the tube being rated on a scale of 0-10. A rating of 0 refers to heavy deposit formation and a rating of 10 means a clean glass tube at the end of the test. The method is also described in SAE paper 840262.
  • the level of lacquer formation in the tube reflects the high temperature stability of the oil and its tendency during service to form deposits in high temperature areas of the engine.
  • the measured ratings are indicated in Table 2 below.
  • Table 2 Ex. 2 Ex. 3 Ex. 5 Ex. 6 Comp. Ex. 1 290°C 9.5 9.5 9.5 9.5 8.5 320°C 5.0 5.0 8.5 8.5 blocked
  • the base oil comprises at least 50 wt.% of a Group II base oil.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Claims (10)

  1. Composition lubrifiante comprenant au moins :
    - une huile de base ; et
    - un détergent ;
    dans laquelle le détergent comprend au moins 30 % en mole, sur la base de la quantité totale de détergent, d'un détergent sulfonate ayant un BN (indice de base) de 0,1 à 80 mg de KOH/g ;
    dans laquelle le détergent comprend de 30 à 70 % en mole, sur la base de la quantité totale de détergent, d'un détergent phénate, le détergent phénate étant un détergent surbasique ayant un BN d'au moins 190 mg de KOH/g ;
    la composition lubrifiante comprenant au moins 8 % en poids de détergent, sur la base du poids total de la composition ; et
    la composition lubrifiante ayant un TBN (indice de base total) selon la norme ASTM D 2896 d'au moins 10 mg de KOH/g.
  2. Composition lubrifiante selon la revendication 1, dans laquelle le détergent comprend au moins 35 % en mole du détergent sulfonate.
  3. Composition lubrifiante selon la revendication 1 ou 2, dans laquelle le détergent sulfonate a un BN d'au maximum 50 mg de KOH/g.
  4. Composition lubrifiante selon l'une quelconque des revendications 1 à 3, dans laquelle le détergent comprend au moins 35 % en mole du détergent phénate.
  5. Composition lubrifiante selon l'une quelconque des revendications 1 à 4, dans laquelle le détergent phénate est un détergent surbasique ayant un BN d'au moins 200 mg de KOH/g.
  6. Composition lubrifiante selon l'une quelconque des revendications 1 à 5, la composition comprenant au moins 12 % en poids de détergent, sur la base du poids total de la composition.
  7. Composition lubrifiante selon l'une quelconque des revendications 1 à 6, la composition ayant une valeur de TBN (indice de base total) d'au maximum 75 mg de KOH/g.
  8. Composition lubrifiante selon l'une quelconque des revendications 1 à 7, dans laquelle l'huile de base comprend au moins 50 % en poids d'une huile de base du groupe II, sur la base de la quantité totale d'huile de base.
  9. Composition lubrifiante selon l'une quelconque des revendications 1 à 8, la composition étant une huile pour moteur diesel marin.
  10. Utilisation d'une composition lubrifiante selon l'une quelconque des revendications 1 à 9, afin d'améliorer des propriétés de lutte contre la formation de dépôts.
EP10771723.3A 2009-10-26 2010-10-26 Composition de lubrification Revoked EP2494014B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10771723.3A EP2494014B1 (fr) 2009-10-26 2010-10-26 Composition de lubrification

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09174004 2009-10-26
PCT/EP2010/066123 WO2011051261A1 (fr) 2009-10-26 2010-10-26 Composition lubrifiante
EP10771723.3A EP2494014B1 (fr) 2009-10-26 2010-10-26 Composition de lubrification

Publications (2)

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EP2494014A1 EP2494014A1 (fr) 2012-09-05
EP2494014B1 true EP2494014B1 (fr) 2015-12-16

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EP10771723.3A Revoked EP2494014B1 (fr) 2009-10-26 2010-10-26 Composition de lubrification

Country Status (7)

Country Link
US (1) US20120214719A1 (fr)
EP (1) EP2494014B1 (fr)
KR (2) KR20170052703A (fr)
CN (2) CN106811266A (fr)
HK (1) HK1171782A1 (fr)
SG (1) SG10201504132TA (fr)
WO (1) WO2011051261A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2719751B1 (fr) 2012-06-07 2021-03-31 Infineum International Limited Lubrification de moteur marin
EP2703477A3 (fr) 2012-06-07 2015-09-02 Infineum International Limited Lubrification de moteur marin
CA2966203C (fr) 2014-10-31 2023-04-11 The Lubrizol Corporation Compositions de lubrification diesel marine contenant un dispersant de succinimide borique, des detergents de sulfonate metallique et des detergents a base de phenol, et utilisations connexes
US10407640B2 (en) 2015-07-22 2019-09-10 Chevron Oronite Technology B.V. Marine diesel cylinder lubricant oil compositions
WO2017148835A1 (fr) * 2016-02-29 2017-09-08 Shell Internationale Research Maatschappij B.V. Composition lubrifiante

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EP2194114A2 (fr) 2010-03-19 2010-06-09 Shell Internationale Research Maatschappij B.V. Schmiermittelzusammensetzung
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EP1167497A2 (fr) 2000-06-02 2002-01-02 Chevron Oronite Japan Limited Composition d'huile lubrifiante pour moteurs diesel
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Also Published As

Publication number Publication date
CN102666817A (zh) 2012-09-12
KR101950667B1 (ko) 2019-02-21
US20120214719A1 (en) 2012-08-23
KR20120114236A (ko) 2012-10-16
SG10201504132TA (en) 2015-06-29
KR20170052703A (ko) 2017-05-12
CN106811266A (zh) 2017-06-09
HK1171782A1 (en) 2013-04-05
EP2494014A1 (fr) 2012-09-05
WO2011051261A1 (fr) 2011-05-05

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