FR2572089A1 - Lithium soap grease - Google Patents

Lithium soap grease Download PDF

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Publication number
FR2572089A1
FR2572089A1 FR8416121A FR8416121A FR2572089A1 FR 2572089 A1 FR2572089 A1 FR 2572089A1 FR 8416121 A FR8416121 A FR 8416121A FR 8416121 A FR8416121 A FR 8416121A FR 2572089 A1 FR2572089 A1 FR 2572089A1
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FR
France
Prior art keywords
sep
weight
lithium
grease
soap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8416121A
Other languages
French (fr)
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FR2572089B3 (en
Inventor
Michel Mougin
Michel Thibault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise de Raffinage SA
Original Assignee
Compagnie Francaise de Raffinage SA
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Application filed by Compagnie Francaise de Raffinage SA filed Critical Compagnie Francaise de Raffinage SA
Priority to FR8416121A priority Critical patent/FR2572089B3/en
Publication of FR2572089A1 publication Critical patent/FR2572089A1/en
Application granted granted Critical
Publication of FR2572089B3 publication Critical patent/FR2572089B3/en
Expired legal-status Critical Current

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    • 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
    • C10M169/06—Mixtures of thickeners 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
    • C10M117/00—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
    • C10M117/02—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen
    • C10M117/04—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen containing hydroxy groups
    • 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
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/10—Metal oxides, hydroxides, carbonates or bicarbonates
    • 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
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/26—Compounds containing silicon or boron, e.g. silica, sand
    • 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
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M133/12—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
    • 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
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/38—Heterocyclic nitrogen compounds
    • C10M133/40—Six-membered ring containing nitrogen and carbon only
    • 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
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
    • C10M135/10—Sulfonic acids or derivatives thereof
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
    • C10M135/18—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/087—Boron oxides, acids or salts
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    • C10M2201/10—Compounds containing silicon
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    • C10M2201/102—Silicates
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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    • C10M2201/105—Silica
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/124—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms containing hydroxy groups; Ethers thereof
    • C10M2207/1245—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms containing hydroxy groups; Ethers thereof used as thickening agent
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
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    • C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
    • C10M2207/1285—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof used as thickening agents
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    • C10M2215/064—Di- and triaryl amines
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    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • C10M2215/065—Phenyl-Naphthyl amines
    • C—CHEMISTRY; METALLURGY
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    • C10M2215/066—Arylene diamines
    • C—CHEMISTRY; METALLURGY
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    • C10M2215/067—Polyaryl amine alkanes
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    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12

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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)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

Grease comprising: a) from 65 to 94.5 % by weight of at least one lubricating oil, b) from 25 to 5 % by weight of at least one lithium soap, c) from 10 to 0.5 % by weight of at least one additive. According to the invention the lithium soap consists of the lithium salt of a saturated aliphatic dihydroxymonocarboxylic acid containing from 14 to 24 carbon atoms.

Description

Graisse au savon de lithium.  Lithium soap grease.

La présente invention concerne une graisse contenant un savon de lithium. The present invention relates to a grease containing a lithium soap.

Les graisses contenant une huile et un agent épaississant sont bien connues. L'agent épaississant peut etre notamment un savon. Ce savon est souvent constitué de sels métalliques d'acides mono- ou dicarboxyliques. On a ainsi utilisé, par exemple, comme agent épaississant,le savon constitué par le 12-hydroxystéarate de lithium (voir, par exemple, le brevet
US n0 3.909.426). Fats containing an oil and a thickening agent are well known. The thickening agent may be in particular a soap. This soap is often made of metal salts of mono- or dicarboxylic acids. Thus, for example, as a thickening agent, the soap constituted by lithium 12-hydroxystearate (see, for example, the patent) has been used.
U.S. Patent No. 3,909,426).

Ces graisses sont, en particulier, utilisées pour lubrifier des pièces métalliques qui peuvent être portées à des températures élevées, souvent plus de 1500C, comme, par exemple, les roulements de convoyeurs situes près de fours ou, dans les automobiles, les roulements situés près des pots d'échap pement. Les graisses mentionnées précédemment au 12-hydroxys téarate de lithium résisbut mal à ces températures élevées. These greases are, in particular, used to lubricate metal parts that can be brought to high temperatures, often over 1500C, such as, for example, conveyor bearings located near ovens or, in automobiles, bearings located near pots of escape. The fats previously mentioned with 12-hydroxys lithium tetar resisbut poorly at these high temperatures.

Au cours de ses travaux, la Demanderesse a conçu des graisses convenant pour cet usage. During its work, the Applicant has designed greases suitable for this use.

Le but de la présente invention est donc la mise au point de graisses résistant à des températures élevées. The object of the present invention is therefore the development of greases resistant to high temperatures.

A cet effet, l'invention a pour objet une graisse comprenant
a/ de 65 à 94,5 % en poids d'au moins une huile lubrifiante,
b/ de 25 à 5 % en poids d'au moins un savon de lithium,
c/ de 10 à 0,5 % en poids d'au moins un additif, ladite graisse étant caractérisée en ce que le savon de lithium est constitue par le sel de lithium d'un acide dihydroxymonocarboxylique aliphatique saturé ayant de 14 à 24 atomes de carbone.For this purpose, the subject of the invention is a grease comprising
a / from 65 to 94.5% by weight of at least one lubricating oil,
b / from 25 to 5% by weight of at least one lithium soap,
c / from 10 to 0.5% by weight of at least one additive, said grease being characterized in that the lithium soap is constituted by the lithium salt of a saturated aliphatic dihydroxymonocarboxylic acid having from 14 to 24 atoms of carbon.

L'acide dihydroxymonocarboxylique peut être notamment un acide dihydroxystéarique tel que l'acide 9,10-dihydroxystéarique.  The dihydroxymonocarboxylic acid may in particular be a dihydroxystearic acid such as 9,10-dihydroxystearic acid.

Le sel de lithium de l'acide dihydroxymonocarboxylique peut être obtenu par neutralisation par la lithine de l'acide carboxylique ou par saponification par la lithine d'un ester de l'acide carboxylique. The lithium salt of dihydroxymonocarboxylic acid can be obtained by neutralization with lithium hydroxide of the carboxylic acid or by saponification with lithium of an ester of the carboxylic acid.

La graisse selon l'invention contient de 25 à 5 P en poids de savon de lithium et, de préférence, de 16 à 9 % en poids dudit savon. The grease according to the invention contains from 25 to 5% by weight of lithium soap and, preferably, from 16 to 9% by weight of said soap.

L'huile lubrifiante peut être une huile minérale comme une huile naphténique ou paraffinique. Il peut s'agir également d'une huile synthétique constituée par des polyoléfines. The lubricating oil may be a mineral oil such as a naphthenic or paraffinic oil. It can also be a synthetic oil consisting of polyolefins.

Dans ce cas, il est préférable, pour solubiliser le savon, que la polyoléfine soit en mélange avec un alkylbenzène hydrogéné.In this case, it is preferable, for solubilizing the soap, that the polyolefin is in admixture with a hydrogenated alkylbenzene.

L'huile lubrifiante peut être constituée également d'esters d'acides gras ayant de 5 à 10 atomes de carbone et d'alcools comme le néopentylglycol, le pentaérythritol ou le triméthylolpropane. On peut également utiliser les esters de diacides ayant de 6 à 10 atomes de carbone, tels que l'acide sébacique, et d'alcools ayant de 4 à 10 atomes de carbone, tels que l'alcool hexylique ou 2, éthylhexylique. The lubricating oil may also consist of fatty acid esters having 5 to 10 carbon atoms and alcohols such as neopentyl glycol, pentaerythritol or trimethylolpropane. It is also possible to use diacid esters having from 6 to 10 carbon atoms, such as sebacic acid, and alcohols containing from 4 to 10 carbon atoms, such as hexyl or 2-ethylhexyl alcohol.

L'huile a, de préférence, une viscosité à 1000C comprise entre 4 et 30 centistokes. The oil preferably has a viscosity at 1000C of between 4 and 30 centistokes.

La graisse selon l'invention contient également des additifs comme, notamment X
un un additif antioxydant comme les amines aromatiques, un alkyldithiocarbazuate de zinc ou la dihydrotriméthylquino zéine
un un additif antiusure comme les borates de potassium ou le carbonate de calcium
un un additif antirouille comme les sels de sodium d'acides sulfoniques solubles dans l'huile.The grease according to the invention also contains additives such as, especially X
an antioxidant additive such as aromatic amines, a zinc alkyldithiocarbazuate or dihydrotrimethylquino zein
an anti-wear additive such as potassium borates or calcium carbonate
an antirust additive such as the sodium salts of oil-soluble sulfonic acids.

La graisse selon l'invention est obtenue en préparant tout d'abord le savon de lithium de l'acide carboxylique par neutralisation de l'acide par la lithine ou par saponification d'un ester de l'acide par de la lithine. The grease according to the invention is obtained by first preparing the lithium soap of the carboxylic acid by neutralization of the acid with lithium or by saponification of an ester of the acid with lithium.

Les réactions de neutralisation ou de saponification peuvent être effectuées dans au moins une partie de l'huile lubrifiante qui entre dans la composition de la graisse. Neutralization or saponification reactions may be carried out in at least a portion of the lubricating oil which is included in the composition of the fat.

Les additifs sont ajoutés en dernier lieu après broyage du mélange huile et de savon. The additives are added lastly after grinding the oil and soap mixture.

L'invention est illustrée å titre non limitatif par les exemples suivants
EXEMPLE 1
Cet exemple concerne la préparation d'une graisse selon l'invention et la détermination de ses caractéristiques.The invention is illustrated in non-limiting manner by the following examples
EXAMPLE 1
This example relates to the preparation of a grease according to the invention and the determination of its characteristics.

On dissout dans 1 kg d'un alkylat, constitué par un hydrocarbure alkylaromatique hydrogéné d'une viscosité à 1000C de 5,3 centistokes, 1,56 kg dun produit à 99 ,0 en poids de 9,10 -dihydroxystéarate de méthyle. 1 kg of an alkylate, consisting of a hydrogenated alkylaromatic hydrocarbon having a viscosity at 1000 ° C. of 5.3 centistokes, is dissolved in 1.5 kg of a product containing 99.0 parts by weight of methyl 9,10-dihydroxystearate.

On chauffe à 1000C et on ajoute 4 kg d'un mélange de polyalphaoléfines d'une viscosité à 1000C de 12 centistokes. The mixture is heated to 1000 ° C. and 4 kg of a mixture of polyalphaolefins with a viscosity at 12 ° C. of 12 centistokes are added.

On ajoute 0,24 kg de lithine à 14 % de lithium, mélangée dans son poids d'eau. 0.24 kg of 14% Lithium Lithium, mixed in its weight of water, is added.

On chauffe le mélange à 2300C pendant 1 heure environ. The mixture is heated at 2300C for about 1 hour.

On laisse refroidir Au cours du refroidissement, on ajoute 1,5 kg du mélange aux polyalphaoléfines, puis 1,5 kg d'une huile constituée d'esters d'une viscosité à 100 C de 4,7 centistokes.It is allowed to cool. During cooling, 1.5 kg of the polyalphaolefin mixture are added, followed by 1.5 kg of an oil consisting of esters with a viscosity at 100 C of 4.7 centistokes.

On broie la graisse obtenue et on ajoute les additifs suivants
- dihydrotriméthylquinoléine (1 % en poids),
- alkyldithiocarbarnate de zinc (1 % en poids),
- borates de potassium (3 , en poids).The resulting grease is ground and the following additives are added
dihydrotrimethylquinoline (1% by weight),
zinc alkyldithiocarbarnate (1% by weight),
potassium borates (3, by weight).

On obtient ainsi une graisse dont la composition est donnée dans le tableau 1 ci-après :
TABLEAU 1

Figure img00040001
This gives a fat whose composition is given in Table 1 below:
TABLE 1
Figure img00040001

<tb> <SEP> ( <SEP> : <SEP> )
<tb> <SEP> ( <SEP> Composant <SEP> : <SEP> % <SEP> en <SEP> poids. <SEP> )
<tb> (----------------------------------------:------------------------------)
<tb> ( <SEP> : <SEP> )
<tb> ( <SEP> : <SEP> )
<tb> ( <SEP> Savon <SEP> (9,10-dihydroxystéarate <SEP> : <SEP> )
<tb> ( <SEP> de <SEP> lithium) <SEP> : <SEP> 15 <SEP> )
<tb> <SEP> (----------------------------------------:------------------------------)
<tb> ( <SEP> : <SEP> : <SEP> : <SEP> )
<tb> ( <SEP> : <SEP> Hydrocarbure <SEP> alkyl- <SEP> : <SEP> 10 <SEP> : <SEP> )
<tb> ( <SEP> : <SEP> aromatique <SEP> hydrogéné <SEP> t <SEP> r <SEP> )
<tb> ( <SEP> :-------------------------------------------------:<SEP> )
<tb> ( <SEP> Huiles <SEP> : <SEP> Polyalphaoléfines <SEP> : <SEP> 55 <SEP> : <SEP> 80 <SEP> )
<tb> ( <SEP> @u@@@@ <SEP> <SEP> : <SEP> @o@y@@p@@@@@@@@@@ <SEP> <SEP> : <SEP> @@ <SEP> <SEP> : <SEP> @@ <SEP> <SEP> )
<tb> ( <SEP> :----------------------------:--------------: <SEP> )
<tb> ( <SEP> : <SEP> : <SEP> : <SEP> )
<tb> ( <SEP> : <SEP> Ester <SEP> de <SEP> pentaérythritol <SEP> : <SEP> 15 <SEP> :
<tb> ---------------------------:----------:----------)
<tb> ( <SEP> : <SEP> Dihydrotriméthylquinoléine <SEP> : <SEP> 1 <SEP> t <SEP> )
<tb> ( <SEP> :------------------------------:--------------: <SEP> )
<tb> ( <SEP> : <SEP> : <SEP> : <SEP> )
<tb> (Additifs <SEP> :<SEP> Alkyldithiocarbamate <SEP> de <SEP> : <SEP> 1 <SEP> : <SEP> 5 <SEP> )
<tb> ( <SEP> : <SEP> zinc <SEP> : <SEP> : <SEP> )
<tb> ( <SEP> :------------------------------:--------------: <SEP> )
<tb> ( <SEP> : <SEP> : <SEP> : <SEP> )
<tb> ( <SEP> : <SEP> Borates <SEP> de <SEP> potassium <SEP> : <SEP> 3 <SEP> : <SEP> )
<tb> ( <SEP> : <SEP> : <SEP> : <SEP> )
<tb> ( <SEP> : <SEP> : <SEP> <SEP> . <SEP> ) <SEP>
<tb>
Cette graisse possède les caractéristiques suivantes :
- pénétrabilité (déterminée selon la norme AFNOR NFT 60-132): 278,
- point de goutte (déterminé selon la norme AFNOR NFT 60-102): 2580C,
- durée de vie d'un roulement tournant à vitesse élevée à 1780C (selon norme ASTM D3336) : 435 heures.<tb><SEP>(<SEP>:<SEP>)
<tb><SEP>(<SEP> Component <SEP>: <SEP>% <SEP> in <SEP> Weight. <SEP>)
<tb> (----------------------------------------: ----- -------------------------)
<tb>(<SEP>:<SEP>)
<tb>(<SEP>:<SEP>)
<tb>(<SEP> Soap <SEP> (9,10-dihydroxystearate <SEP>: <SEP>)
<tb>(<SEP> of <SEP> lithium) <SEP>: <SEP> 15 <SEP>)
<tb><SEP> (----------------------------------------: - ----------------------------)
<tb>(<SEP>:<SEP>:<SEP>:<SEP>)
<tb>(<SEP>:<SEP> Hydrocarbon <SEP> alkyl- <SEP>: <SEP> 10 <SEP>: <SEP>)
<tb>(<SEP>:<SEP> aromatic <SEP> hydrogenated <SEP> t <SEP> r <SEP>)
<tb>(<SEP>: ------------------------------------------ -------: <SEP>)
<tb>(<SEP> Oils <SEP>: <SEP> Polyalphaolefines <SEP>: <SEP> 55 <SEP>: <SEP> 80 <SEP>)
<tb>(<SEP> @u @@@@ <SEP><SEP>:<SEP> @ o @ y@@@@@@@@@@@ SEP><SEP>:<SEP> @@ <SEP><SEP>:<SEP> @@ <SEP><SEP>)
<tb>(<SEP>: ----------------------------: ------------- -: <SEP>)
<tb>(<SEP>:<SEP>:<SEP>:<SEP>)
<tb>(<SEP>:<SEP> Ester <SEP> of <SEP> pentaerythritol <SEP>: <SEP> 15 <SEP>:
<tb> ---------------------------: ----------: -------- -)
<tb>(<SEP>:<SEP> Dihydrotrimethylquinoline <SEP>: <SEP> 1 <SEP> t <SEP>)
<tb>(<SEP>: ------------------------------: ----------- ---: <SEP>)
<tb>(<SEP>:<SEP>:<SEP>:<SEP>)
<tb> (Additives <SEP>: <SEP> Alkyldithiocarbamate <SEP> of <SEP>: <SEP> 1 <SEP>: <SEP> 5 <SEP>)
<tb>(<SEP>:<SEP> zinc <SEP>: <SEP>: <SEP>)
<tb>(<SEP>: ------------------------------: ----------- ---: <SEP>)
<tb>(<SEP>:<SEP>:<SEP>:<SEP>)
<tb>(<SEP>:<SEP> Borates <SEP> of <SEP> potassium <SEP>: <SEP> 3 <SEP>: <SEP>)
<tb>(<SEP>:<SEP>:<SEP>:<SEP>)
<tb>(<SEP>:<SEP>:<SEP><SEP>.<SEP>)<SEP>
<Tb>
This grease has the following characteristics:
penetrability (determined according to AFNOR NFT 60-132): 278,
- drop point (determined according to AFNOR NFT 60-102): 2580C,
- life of a bearing rotating at high speed at 1780C (according to ASTM D3336): 435 hours.

Ces valeurs reflètent une très bonne qualité de la graisse. These values reflect a very good quality of the fat.

EXEMPLE 2
Cet exemple concerne la préparation d'une graisse selon l'invention et la détermination de ses caractéristiques.EXAMPLE 2
This example relates to the preparation of a grease according to the invention and the determination of its characteristics.

On dissout dans 5 kg d'une huile minérale naphténique d'une viscosité à 400C de 127 centistokes, 1,56 kg d'un produit contenant 99 ,0 en poids de 9,10-dihydroxystéarate de méthyle. 5 kg of a naphthenic mineral oil having a viscosity at 400 ° C. of 127 centistokes are dissolved in 1.56 kg of a product containing 99.0% by weight of methyl 9,10-dihydroxystearate.

On chauffe à 800C. It is heated to 800C.

On ajoute 0,24 kg de lithine à 14 % de lithium mélangée à son poids d'eau. 0.24 kg of 14% Lithium Lithium mixed with its weight of water are added.

On chauffe à environ 1500C pour évaporer l'eau. It is heated to about 1500C to evaporate the water.

On chauffe à 2300C pendant 1 heure. On laisse refroidir. It is heated at 2300C for 1 hour. Let cool.

Au cours du refroidissement, on ajoute 3 kg de l'huile naphté- nique. On broie la graisse obtenue et on ajoute les additifs suivants
- dioctyldiphénylamine ( 1 % en poids),
- alkylamine aromatique ( 1 % en poids),
- borates de potassium ( 3 % en poids).During cooling, 3 kg of the naphthenic oil are added. The resulting grease is ground and the following additives are added
dioctyldiphenylamine (1% by weight),
aromatic alkylamine (1% by weight),
potassium borates (3% by weight).

On obtient ainsi une graisse dont la composition est donnée dans le Tableau 2 ci-après. This gives a fat whose composition is given in Table 2 below.

TABLEAU 2

Figure img00050001
TABLE 2
Figure img00050001

<tb> ( <SEP> Composant <SEP> : <SEP> % <SEP> <SEP> en <SEP> poids
<tb> ( <SEP> )
<tb> ( <SEP> Savon <SEP> (9,10-dihydroxystéarate <SEP> : <SEP> 15
<tb> de <SEP> lithium) <SEP> )
<tb> ( <SEP> Huile <SEP> naphténique <SEP> : <SEP> <SEP> 80
<tb> ( <SEP> ) <SEP>
<tb> ( <SEP> : <SEP> : <SEP> : <SEP> )
<tb> ( <SEP> : <SEP> Dioctyldiphénylamine <SEP> : <SEP> 1 <SEP> : <SEP> )
<tb> ( <SEP> :----------------------------:-------------------------: <SEP> )
<tb> ( <SEP> : <SEP> : <SEP> : <SEP> 5 <SEP> )
<tb> ( <SEP> Additifs <SEP> : <SEP> alkylamine <SEP> aromatique <SEP> : <SEP> 1 <SEP> : <SEP> )
<tb> ( <SEP> :------------------------------------------------------: <SEP> )
<tb> ( <SEP> <SEP> : <SEP> Borates <SEP> de <SEP> potassium <SEP> : <SEP> 3 <SEP> :
<tb> ( <SEP> : <SEP> ) <SEP>
<tb>
Cette graisse possède les caractéristique suivantes
- pénétrabilité-(déterminCe selon la norme AFNOR NFT 60-132) : 275,
- point de goutte (déterminé selon la norme AFNOR NFT 60-102) : 2560C,
- durée de vie d'un roulement tournant à vitesse élevée à 1490C (selon norme ASTM D 3336) > 600 heures.<tb>(<SEP> Component <SEP>: <SEP>% <SEP><SEP> in <SEP> Weight
<tb>(<SEP>)
<tb>(<SEP> Soap <SEP> (9,10-dihydroxystearate <SEP>: <SEP> 15
<tb> of <SEP> lithium) <SEP>)
<tb>(<SEP> Oil <SEP> Naphthalene <SEP>: <SEP><SEP> 80
<tb>(<SEP>)<SEP>
<tb>(<SEP>:<SEP>:<SEP>:<SEP>)
<tb>(<SEP>:<SEP> Dioctyldiphenylamine <SEP>: <SEP> 1 <SEP>: <SEP>)
<tb>(<SEP>: ----------------------------: ------------- ------------: <SEP>)
<tb>(<SEP>:<SEP>:<SEP>:<SEP> 5 <SEP>)
<tb>(<SEP> Additives <SEP>: <SEP> alkylamine <SEP> aromatic <SEP>: <SEP> 1 <SEP>: <SEP>)
<tb>(<SEP>: ------------------------------------------ ------------: <SEP>)
<tb>(<SEP><SEP>:<SEP> Borates <SEP> of <SEP> potassium <SEP>: <SEP> 3 <SEP>:
<tb>(<SEP>:<SEP>)<SEP>
<Tb>
This grease has the following characteristics
- penetrability- (determined according to AFNOR NFT 60-132): 275,
- drop point (determined according to AFNOR NFT 60-102): 2560C,
- life of a bearing running at high speed at 1490C (according to ASTM D 3336)> 600 hours.

Ces valeurs reflètent une très bonne qualité de la graisse.  These values reflect a very good quality of the fat.

Claims (3)

REVENDICATIONS 1. - Graisse comprenant : 1. - Fat comprising: a/ de 65 à 94,5 ,0 en poids d'au moins une huile lubrifiante, from 65 to 94.5% by weight of at least one lubricating oil, b/ de 25 à 5 , en poids dau moins un savon de lithium b / from 25 to 5, by weight of at least one lithium soap c/ de 10 à 0,5 % en poids d'au moins un additif0 c / from 10 to 0.5% by weight of at least one additive Ladite graisse étant caractérisée en ce que le savon de lithium est constitué par le sel de lithium d'un acide dihydro- xymonocarboxylique aliphatique saturé ayant de 14 S 24 atomes de carbone0 Said grease being characterized in that the lithium soap is constituted by the lithium salt of a saturated aliphatic dihydroxymonocarboxylic acid having 14 S 24 carbon atoms 2- Graisse selon la revendication l, caractérisée en ce que l'acide dihydroxymonocarboxylique est l'acide 9,10-dihydro- systéarique. 2. Grease according to claim 1, characterized in that the dihydroxymonocarboxylic acid is 9,10-dihydrosystearic acid. 3.- Graisse selon l'une des revendications 1 et 2, caractérisée en ce qu'elle contient de préférence de 16 à 9 % en poids de savon de lithium0  3. Grease according to one of claims 1 and 2, characterized in that it preferably contains from 16 to 9% by weight of lithium soap
FR8416121A 1984-10-22 1984-10-22 LITHIUM SOAP GREASE Expired FR2572089B3 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4990272A (en) * 1987-12-08 1991-02-05 Kabushiki Kaisha Tokai Rika Denki Seisakusho Grease composition
WO1991018076A1 (en) * 1990-05-15 1991-11-28 Exxon Research And Engineering Company Grease composition
EP0806469A2 (en) * 1996-05-08 1997-11-12 The Lubrizol Corporation An enhanced biodegradable vegetable oil grease
US6239085B1 (en) 1998-10-23 2001-05-29 Exxon Research And Engineering Company Grease composition containing pao, alkylaromatic synthetic fluid and white oil for industrial bearings
US6541427B1 (en) * 1997-06-20 2003-04-01 Fuchs Europe Schmierstoffe Gmbh & Co. Kg Lubricant for maintenance-free cardan shafts
CN115678633A (en) * 2022-09-09 2023-02-03 中国科学院兰州化学物理研究所 Composite lithium prefabricated thickening agent and preparation method thereof, and lubricating grease composition and preparation method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4990272A (en) * 1987-12-08 1991-02-05 Kabushiki Kaisha Tokai Rika Denki Seisakusho Grease composition
WO1991018076A1 (en) * 1990-05-15 1991-11-28 Exxon Research And Engineering Company Grease composition
EP0806469A2 (en) * 1996-05-08 1997-11-12 The Lubrizol Corporation An enhanced biodegradable vegetable oil grease
EP0806469A3 (en) * 1996-05-08 1998-04-15 The Lubrizol Corporation An enhanced biodegradable vegetable oil grease
US6541427B1 (en) * 1997-06-20 2003-04-01 Fuchs Europe Schmierstoffe Gmbh & Co. Kg Lubricant for maintenance-free cardan shafts
US6239085B1 (en) 1998-10-23 2001-05-29 Exxon Research And Engineering Company Grease composition containing pao, alkylaromatic synthetic fluid and white oil for industrial bearings
CN115678633A (en) * 2022-09-09 2023-02-03 中国科学院兰州化学物理研究所 Composite lithium prefabricated thickening agent and preparation method thereof, and lubricating grease composition and preparation method thereof

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Publication number Publication date
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