DE946651C - Turbine Lube - Google Patents

Turbine Lube

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Publication number
DE946651C
DE946651C DEST6240A DEST006240A DE946651C DE 946651 C DE946651 C DE 946651C DE ST6240 A DEST6240 A DE ST6240A DE ST006240 A DEST006240 A DE ST006240A DE 946651 C DE946651 C DE 946651C
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DE
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Prior art keywords
lubricating oil
glycol
oil according
percent
turbine lubricating
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Expired
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DEST6240A
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German (de)
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Standard Oil Development Co
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Standard Oil Development Co
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Publication of DE946651C publication Critical patent/DE946651C/en
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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
    • C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with 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
    • 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
    • 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
    • C10M2207/024—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings having at least two phenol groups but no condensed 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
    • 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
    • C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/283—Esters of polyhydroxy 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
    • 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
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • 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
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • 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
    • C10N2040/135—Steam engines or turbines
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

Landscapes

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

Description

Die Erfindung bezieht sich auf Turbinenschmieröle, insbesondere auf solche auf Mineralölbasis, die Rostschutzzusätze enthalten, die bereits in geringen Konzentrationen eine hohe Wirksamkeit haben. Turbinenschmieröle müssen vor allem niedrige Azidität, hohe Rostschutzwirkung und gute Dismulgierbarkeit besitzen, d. h., sie dürfen mit Wasser keine stabilen Emulsionen bilden. Diese Eigenschaften werden von einem Mineralschmieröl nur unvollständig erreicht. Bezüglich der Dismulgierbarkeit nehmen Turbinenschmieröle auf dem Gebiet der Schmieröle eine Sonderstellung ein.The invention relates to turbine lubricating oils, particularly those based on mineral oil, the anti-rust additives which are highly effective even in low concentrations. Above all, turbine lubricating oils must have low acidity, have a high anti-rust effect and good demulsibility, d. i.e., they must not be stable with water Form emulsions. These properties are only incompletely achieved by a mineral lubricating oil. With regard to demulsibility, turbine lubricating oils occupy a special position in the field of lubricating oils a.

Die Erhöhung der Rostschutzwirkung· von Schmierölen durch bestimmte Zusätze ist an sich bekannt. Viele dieser Zusätze haben aber gewisse Mängel. Zum Beispiel sind zwar tierische Fette, wie Lanolin oder Wollfett, bereits als Rostschutzmittel vorgeschlagen worden, ihre Verwendbarkeit beschränkt sich aber auf Gemische, in denen die Emulgierungseigenschaften ohne Bedeutung sind. Öllösliche MetaUerdölsulfonate wurden ebenfalls als Korrosionsschutzmittel für Schmieröle vorgeschlagen.The increase in the anti-rust effect of lubricating oils by certain additives is known per se. However, many of these additives have certain shortcomings. For example, although animal fats, such as lanolin or Wool grease, already proposed as a rust preventive, but its usefulness is limited to Mixtures in which the emulsification properties are of no importance. Oil-soluble metal sulfonates have also been proposed as corrosion inhibitors for lubricating oils.

Es zeigte sich nun überraschend, daß Turbinenschmieröle von den angegebenen Eigenschaften erhalten werden, wenn sie öllösliche Metallmahagonisulfonate in einer Menge unter 1 Gewichtsprozent, bezogen auf das Grundöl, sowie öllösliche Ester eines Glykols oder Polyglykols und des Ricinolsäure-Trimers in einer Menge unter 1 Gewichtsprozent, bezogen auf das Grundöl, enthalten.It has now been found, surprisingly, that turbine lubricating oils have the specified properties if they are oil-soluble metal mahogany sulfonates in an amount below 1 percent by weight, based on the base oil, as well as oil-soluble esters of a glycol or polyglycol and the ricinoleic acid trimer in an amount below 1 percent by weight, based on the base oil.

Die erfindungsgemäß verwendbaren öllöslichen Metallsulfonate sind die sogenannten Mahagonisäuresulfonate, vorteilhaft Alkalisulfonate, insbesondere des Natriums. Die Sulfonsäuren haben vorteilhaft ein Molekulargewicht zwischen 300 und 600, insbesondere 400 und 550. Sulfonate" enthalten häufig freies Alkali oder anorganische Salze. Es empfiehlt sich indessen, Sulfonate zu verwenden, aus denen diese Verunreinigunger^entfernt sind. Die vorzugsweise verwendeten ,Sulfonate„sind-auch im wesentlichen neutral.The oil-soluble metal sulfonates which can be used according to the invention are the so-called mahogany acid sulfonates, advantageously alkali sulfonates, especially sodium. The sulfonic acids have beneficial one Molecular weight between 300 and 600, in particular 400 and 550. Sulphonates "often contain free alkali or inorganic salts. It is advisable, however, to use sulphonates from which these impurities are removed are. The "sulfonates" which are preferably used are also essentially neutral.

i)i| *gelä?B .der Erfindung verwendeten Ester sind,i) i | * esters used in the invention are

: wie"g"^säg% Diester von Glykolen oder Polyglykplen und : like "g" ^ saw% diesters of glycols or polyglycplene and

des Triniers* der Ricinolsäure. Bevorzugt sind P.olyäthylenglykoie, insbesondere diejenigen bis einschließ-des Triniers * of ricinoleic acid. Polyethylene glycols are preferred, especially those up to and including

lieh des Hexaäthylenglykols, z. B. Äthylen- und Triäthylenglykol. Diese Verbindungen können durch einfache Veresterung unschwer hergestellt werden. Die Wirksamkeit der erfindungsgemäßen Kombination läßt sich zahlenmäßig bestimmen. Zu diesemborrowed the hexaethylene glycol, z. B. ethylene and triethylene glycol. These compounds can be easily produced by simple esterification. The effectiveness of the combination according to the invention can be determined numerically. To this

Zwecke wird das Verhalten der verschiedenen Öle bei der Rostprüfung »ASTM. Rusting Test D 665-507« ermittelt. Dieser Test dient zur Untersuchung von Turbinenölen und verwendet künstliches Meerwasser. Es ist wichtig, daß das Öl während dieses Testes keine Rostbildung zuläßt, ferner soll es eine gute Dismülgierbarkeit und eine niedrige Azidität haben. Bei diesen Versuchen zeigt sich, daß das Gemisch gemäß vorliegender Erfindung in seinem Gesamtverhalten· überragend gut ist. .The purpose is the behavior of the various oils in the rust test »ASTM. Rusting Test D 665-507 « determined. This test is used to examine turbine oils and uses artificial sea water. It is important that the oil does not allow rust to form during this test, and it should also have good disintegrability and have low acidity. In these experiments it is shown that the mixture according to the present Invention in its overall behavior · is outstandingly good. .

Als Grundlageöl wurde für diese Versuche ein lösungsmittelextrahiertes naphthenbasisches Mineralöl von einer kinematischen Zähigkeit von 85 cSt bei 37,8° verwendet. Allein dieses Öl hat eine gute Dismülgierbarkeit und Azidität, gewährt aber nur einen geringen Rostschutz. Es wurden drei bekannte Rostschutzmittel untersucht; dabei ist zu erkennen, daß diese eine größere Azidität und eine schlechtere Dismülgierbarkeit besitzen. Indessen haben sie eine gute Rostschutzwirkung. Die Kosten der wirksamen Kombination sind sehr hoch. Weder die Sulfonate noch das Polyglykol-Ditriricinoleat allein sind wirksame Rostschutzmittel, und beide Produkte ergeben Öle von ziemlich hoher Dismülgierbarkeit. Indessen hat ihre Kombination eine völlig unerwartete Wirkung; bei dem Test zeigt sich keine Rostwirkung, ferner sind Dismülgierbarkeit und Azidität ausgezeichnet. Diese Ergebnisse sind der Einfachheit halber nachfolgend tabellarisch zusammengestellt.A solvent-extracted naphthenic mineral oil was used as the base oil for these experiments used with a kinematic toughness of 85 cSt at 37.8 °. This oil alone has a good one Dismissibility and acidity, but only provides a low level of rust protection. There were three acquaintances Rust inhibitor investigated; it can be seen that this has a greater acidity and a poorer one Have dismulsibility. However, they have a good anti-rust effect. The cost of the effective Combination are very high. Neither the sulfonates nor the polyglycol ditriricinoleate alone are effective Rust inhibitors, and both products give oils of fairly high dismulsibility. Meanwhile their combination has a completely unexpected effect; in the test there is no rust effect, furthermore Excellent dismulsibility and acidity. These results are shown below for simplicity compiled in tabular form.

CrtCrt Zusatzadditive RostschutztestAnti-rust test DismülDismül AziditätAcidity ASTM.
D 665-507ASTM.
D 665-507 gierbar
keityawable
speed IP. 1/46
mgIP. 1/46
mg keiner none RostbildungRust formation IP. 19/51IP. 19/51 KOH/SKOH / S 55 o,o5%Lauryl- 55 o, o 5% lauryl übermäßigeexcessive 120"120 " 0,070.07 mercaptoessig-mercapto vinegar > J> J säure acid 0,05 % Äthylen-0.05% ethylene keineno 180"180 " 0,70 .0.70. 60 glykol-ditri-60 glycol ditric ricinoleat 50%,ricinoleate 50%, Laurylmercapto-Lauryl mercapto- essigsäure 5o°/0..acetic acid 5o ° / 0 .. keineno 180"180 " 0,700.70

RostschutztestAnti-rust test Dismul-Dismul- AziditätAcidity Zusatzadditive ASTM. "ASTM. " • gierbar-• yaw- IP. I/46IP. I / 46 D 665-507D 665-507 keitspeed mgmg RostbildungRust formation IP-19/51IP-19/51 KOH/SKOH / S 0,075 %Zink-0.075% zinc naphthenat naphthenate keineno 800"800 " 0,150.15 o,i5°/0Äthylen-0.15 ° / 0 ethylene glykol-ditri-glycol ditri richioleat . ...richioleate. ... schwacheweakness 220"220 " 0,080.08 0,75 % Natrium0.75% sodium sulf onat sulf onate beträchtlicheconsiderable 300"300 " 0,080.08 o,io°/0Äthylen-o, io ° / 0 ethylene glykol-ditri-glycol ditri ricinoleat undricinoleat and 0,05 % Natrium-0.05% sodium sulfonat sulfonate keineno 180"180 " 0,080.08

Es ist zu erkennen, daß die -'erfindungsgemäßeIt can be seen that the -'invention

Kombination eine ausgezeichnete synergistische Wir-.kung hat und einen überraschend guten Schutz bietet.Combination an excellent synergistic effect and offers surprisingly good protection.

Die Kombination gemäß vorliegender Erfindung ist insbesondere für die Verwendung als Schmiermittel in Dampfturbinen oder Kurbelgehäusen für eingeschlossene Dampfmaschinen geeignet. Bei diesen beiden Anwendungszwecken ist eine Rostschutzwirkung in Verbindung mit einer guten Dismulgierbarkeit erforderlich. Daher wird die Erfindung bevorzugt 'auf Schmiermittel angewendet, die hochgereinigt sind und eine paraffinbasische Grundlage haben. Gewöhnlich enthalten derartige Schmiermittel auch ein Antioxydationsmittel der für Turbinenöle üblichen Art. Diese Antioxydationszusätze sind gewöhnlich Phenoloder Aminoverbindungen, wie die älkylierten Phenole und Bisphenole — z. B. 2,6-Di-i-butyl-4-methylphenol — und aromatische Amine, wie Phenyl- und Naphthylamin. Die vorliegende Kombination ist indessen auch in kostenmäßiger Hinsicht sehr gut verwendbar und kann deshalb auch auf anderen weniger kritischen Gebieten verwendet werden. So ist die Kombination nicht nur in allen Mineralschmierölen wirksam, sondern sie kann auch, z. B. in Fettgemischen, in synthetischen Schmierölen verwendet werden, sie kann sogar auch dazu dienen, den durch Öle jeder Art ausgeübten Rostschutz von Eisenflächen zu erhöhen.The combination according to the present invention is particularly suitable for use as a lubricant in Steam turbines or crankcases suitable for enclosed steam engines. With these Both purposes of application is a rust preventive effect in connection with a good demulsibility necessary. Therefore, the invention is preferably applied to lubricants which are highly purified and have a paraffin base. Usually such lubricants also contain an antioxidant of the kind commonly used for turbine oils. These antioxidant additives are usually phenol or Amino compounds, such as the alkylated phenols and bisphenols - e.g. B. 2,6-Di-i-butyl-4-methylphenol - and aromatic amines such as phenylamine and naphthylamine. The present combination is however, it can also be used very well in terms of cost and can therefore also be used less on others critical areas. This is the combination not only in all mineral lubricating oils effective, but it can also, e.g. B. be used in fat mixtures, in synthetic lubricating oils, they can even be used to improve the quality of oils of any kind to increase the rust protection applied to iron surfaces.

Claims (7)

Patentansprüche:Patent claims: 1. Turbinenschmieröl, gekennzeichnet durch einen Gehalt an einem öllöslichen Metalhnahagonisulfonat in einer Menge unter 1 Gewichtsprozent, bezogen auf das Grundöl, sowie einem öllöslichen Ester eines Glykols oder Polyglykols und des 115. Ricinolsäure-Trimers in einer Menge unter 1 Gewichtsprozent, bezogen auf das Grundöl.1. Turbine lubricating oil, characterized by a content of an oil-soluble Metalhnahagonisulfonat in an amount below 1 percent by weight, based on the base oil, and an oil-soluble one Esters of a glycol or polyglycol and the 115th ricinoleic acid trimer in an amount below 1 percent by weight, based on the base oil. 2. Turbinenschmieröl nach Anspruch 1, dadurch gekennzeichnet, daß. das Metallmahägonisulfonat ein'Alkali-, vorzugsweise Natriumsulf onat ist.2. turbine lubricating oil according to claim 1, characterized in that. the metal mahogany sulfonate ein'Alkali-, preferably sodium sulfonate is. 3. Turbinenschmieröl nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Sulfonsäuren des Sulfonats Molekulargewichte zwischen 300 und 600, vorzugsweise 400 und 550 haben.3. turbine lubricating oil according to claim 1 and 2, characterized in that the sulfonic acids des Sulphonate molecular weights between 300 and 600, preferably 400 and 550 have. 4. Turbüienschmieröl nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß"' das SuIfonat im4. Turbo lubricating oil according to claim 1 to 3, characterized in that "'the suIfonat im wesentlichen frei von anorganischen Salzen ist und praktisch neutral reagiert.is essentially free of inorganic salts and reacts practically neutrally. 5. Turbinenschmieröl nach Anspruch 1 bis 4,. dadurch gekennzeichnet, daß das Polyglykol ein Polyäthylenglykol ist, vorzugsweise ein solches bis einschließlich Hexaäthylenglykol, insbesondere Äthylen- und Triäthylenglykol.5. turbine lubricating oil according to claim 1 to 4 ,. characterized in that the polyglycol is a Polyethylene glycol is preferably one up to and including hexaethylene glycol, in particular Ethylene and triethylene glycol. 6. Turbinenschmieröl nach Anspruch 1 bis 5, gekennzeichnet durch einen Gehalt an Sulfonat'in Mengen von 0,01 und 1 Gewichtsprozent.6. turbine lubricating oil according to claim 1 to 5, characterized by a content of sulfonate Amounts of 0.01 and 1 percent by weight. 7. Turbinenschmieröl nach Anspruch 1 bis 6, gekennzeichnet durch einen Gehalt an einem Polyglykol- oder Glykolester in Mengen bis zur Löslicnkeitsgrenze, vorteilhaft unter 0,5 Gewichtsprozent.7. turbine lubricating oil according to claim 1 to 6, characterized by a content of a polyglycol or glycol esters in amounts up to the solubility limit, advantageously below 0.5 percent by weight. In Betracht gezogene Druckschriften:!
Französische Patentschrift Nr. 953562;
USA.-Patentschriften Nr. 2466647, 2493483,
574 994-Publications considered :!
French Patent No. 953562;
U.S. Patent Nos. 2466647, 2493483,
574 994- Q 609 568 7.56 Q 609 568 7.56
DEST6240A 1952-04-18 1953-04-14 Turbine Lube Expired DE946651C (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466647A (en) * 1945-11-05 1949-04-05 Shell Dev Lubricating oil composition
FR953562A (en) * 1944-11-10 1949-12-08 Bataafsche Petroleum Anti-rust lubricants
US2493483A (en) * 1948-04-26 1950-01-03 Shell Dev Marine engine lubricant
US2574994A (en) * 1947-10-24 1951-11-13 Shell Dev Lubricating composition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR953562A (en) * 1944-11-10 1949-12-08 Bataafsche Petroleum Anti-rust lubricants
US2466647A (en) * 1945-11-05 1949-04-05 Shell Dev Lubricating oil composition
US2574994A (en) * 1947-10-24 1951-11-13 Shell Dev Lubricating composition
US2493483A (en) * 1948-04-26 1950-01-03 Shell Dev Marine engine lubricant

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Publication number Publication date
FR1074450A (en) 1954-10-05

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