DE749260C - Addition to engine lubricating oils - Google Patents

Addition to engine lubricating oils

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Publication number
DE749260C
DE749260C DEK112073D DEK0112073D DE749260C DE 749260 C DE749260 C DE 749260C DE K112073 D DEK112073 D DE K112073D DE K0112073 D DEK0112073 D DE K0112073D DE 749260 C DE749260 C DE 749260C
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DE
Germany
Prior art keywords
lubricating oils
addition
engine lubricating
oils
lubricating oil
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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.)
Expired
Application number
DEK112073D
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German (de)
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to DEK112073D priority Critical patent/DE749260C/en
Application granted granted Critical
Publication of DE749260C publication Critical patent/DE749260C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M1/00Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/16Paraffin waxes; Petrolatum, e.g. slack wax
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/06Peroxides; Ozonides
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125Carboxylix 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
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2060/00Chemical after-treatment of the constituents of the lubricating composition
    • C10N2060/04Oxidation, e.g. ozonisation

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)
  • Working-Up Tar And Pitch (AREA)

Description

Zusatz zu Motorenschmierölen Es ist bekannt, daß man Schmierölen gemischtbasischer oder asphaltbasischer Herkunft für Verbrennungsmotoren zur Verbesserung der Schmierfähigkeit sogenannte Schmierfähigkeitsträger zusetzt. Als solche Körper hat man z. B. vorgeschlagen Ölsäure, Stearinsäure, Ricinusöl, Cerotinsäure, Ester, Äther, Polymerisatiönsprodukte; ferner auch halogenierte und schwefelhaltige organische Körper der verschiedensten Zusammensetzung.Additive to engine lubricating oils It is known that lubricating oils are mixed-basic or of asphalt-based origin for internal combustion engines to improve lubricity so-called lubricity carrier adds. As such a body one has z. B. suggested Oleic acid, stearic acid, castor oil, cerotic acid, esters, ethers, polymerisation products; also halogenated and sulphurous organic bodies of the most varied Composition.

Diese Stoffe haben zwar eine Verbesserung der Viscositätspolhöhe und des Vicositätsindexes zur Folge, sie besitzen aber andererseits solche Nachteile, daß man diese Zusätze auf ganz geringe Mengen beschränken muß. So verursachen z. B. die fetten Öle bei Anwendung in einer Menge, die nur wenig größer ist als diejenige, in der die fetten Öle üblicherweise als Schmierfähigkeitsträger angewendet werden, infolge thermischer Unbeständigkeit und Empfindlichkeit gegen Oxydation ein störendes Verkleben der Kolbenringe, eine erhöhte Abschei-Jung von Ölkoks und eine frühzeitige Alterung. Die Chlor und Schwefel enthaltenden Zusatzstoffe, die zwar teilweise vorstehende Mängel nicht haben, wirken jedoch infolge ihres Chlor-oder Schwefelgehaltes stark korrodierend -und rufen hohen Verschleiß der aufeinandergleitenden Motorenteile hervor.These substances have an improvement in the Viscositätspolhöhe and of the viscosity index, but on the other hand they have such disadvantages that you have to limit these additives to very small amounts. So cause z. B. the fatty oils when used in an amount that is only slightly larger than that in which the fatty oils are usually used as lubricity carriers, due to thermal instability and sensitivity to oxidation a disturbing Sticking of the piston rings, an increased deposition of oil coke and an early one Aging. The additives containing chlorine and sulfur, although some of the above Do not have defects, but have a strong effect due to their chlorine or sulfur content corrosive - and cause high wear of the sliding engine parts emerged.

Es wurde nun gefunden, daß man den Motorenschmierölen mit Vorteil solche Stoffe zusetzt, die durch besonders schonende Destillation (Molekulardestillation) aus dem technischen Destillationsrückstand der rohen Fettsäuren der Paraffinoxydation erhalten sind. Diese Stoffe verbessern die Schmierfähigkeit, ohne gleichzeitig die durch thermische Unbeständigkeit sowie Empfindlichkeit gegen Oxydation bedingten Nachteile, wie erhöhte Neigung zur Kolbenringverklebung und erhöhte Ölkohlebildung, zu besitzen. Die neuen Mittel können den Schmierölen, besonders geringwertigen, ohne irgendwelche Nachteile bis zu 8 °/o zugesetzt werden. Beispiel Zu einem naphthenbasischen Schmieröl wurden einmal 4% Stearinsäure und ein andermal 4@%ö einer Fraktion (27o-29o° bei o,oo4 mm Hg) aus dem Destillationsrückstand der rohen Fettsäuren der Paraffinoxydation beigemischt. Es ergaben sich folgende physikalisch-chemische Eigenschaften Naphthenbasisches Naphthenbasisches Schmieröl 4% Schmieröl der Fraktion aus -4% , Stearinsäure Fettsäure-Rückstand Dichte bei I5° ............ o,9o5 o,goI Flammpunkt .............. 23o Neutralisationszahl . . . . . . . . . 4,8z 3,.47 Conradsonzahl............. 0,06 o,o5 Verseifungszahl . . . . . . . . . . . . 6, f 3 8,I2 Alterung (Indiana-Test) mg Asphalt `Io g Öl ...... 87 I8 Viscosität bei 5oº . . . . . . . . . . 8,5 ° E 8,2 ° E - bei 7o° . . . . . . . . . . 3,55° E 3,56° E - bei Ioo° . . . . . . . . . I,8I° F I,83° E Viscositätspolhöhe . . . . . . . . . . 2.d0 2,5I Viscositätsindex . . . . . . . . . . . . .f2 6I Diese Öle wurden nun motorischen Prüfungen in gleichen Einzylindermotoren unter festgelegten gleichen Betriebsbedingungen durch einen Ioostündigen Probelauf unterzogen, wobei folgende Ergebnisse erzielt wurden: Beschaffung der Kolbenringe a) Naphthenbasisches Schmieröl + 4%0 Stearinsäure. Abgeschiedene Ölkohlemenge im Verbrennungsraum und auf dem Kolben: 2,6 g. Oberster und folgender Kolbenring waren festgebacken. Mittlere Abnutzung der Zylinderbüchsen o,I8 mm. Mittlere Abnutzung der Kolbenringe 8o mg. Harzgehalt im gebrauchten Schmieröl (nach Noack) Io,4%0.It has now been found that it is advantageous to add substances to the engine lubricating oils which are obtained from the technical distillation residue of the crude fatty acids from paraffin oxidation by particularly gentle distillation (molecular distillation). These substances improve the lubricity without at the same time having the disadvantages caused by thermal instability and sensitivity to oxidation, such as an increased tendency towards sticking of the piston ring and increased oil carbon formation. The new agents can be added to lubricating oils, especially low-grade ones, without any disadvantages, up to 8%. EXAMPLE 4% stearic acid and another time 4% stearic acid were added to a naphthenic lubricating oil (27o-29o ° at 0.04 mm Hg) from the distillation residue of the crude fatty acids from paraffin oxidation. The following physico-chemical properties were found Naphthenic Naphthenic lubricating oil 4% Lubricating oil from the fraction -4%, stearic acid fatty acid residue Density at I5 ° ............ o, 9o5 o, goI Flash point .............. 23o Neutralization number. . . . . . . . . 4,8z 3, .47 Conradson number ............. 0.06 o, o5 Saponification number. . . . . . . . . . . . 6, f 3 8, I2 Aging (Indiana test) mg asphalt `Io g oil ...... 87 I8 Viscosity at 5oº. . . . . . . . . . 8.5 ° E 8.2 ° E - at 7o °. . . . . . . . . . 3.55 ° E 3.56 ° E - at Ioo °. . . . . . . . . I, 8I ° FI, 83 ° E Viscosity pole height. . . . . . . . . . 2.d0 2.5I Viscosity index. . . . . . . . . . . . .f2 6I These oils were then subjected to engine tests in the same single-cylinder engines under the same set operating conditions by means of a 10-hour test run, the following results being obtained: Procurement of the piston rings a) Naphthenic lubricating oil + 4% stearic acid. Deposited amount of carbon in the combustion chamber and on the piston: 2.6 g. The top and following piston rings were baked on. Average wear of the cylinder liners 0.18 mm. Average wear of the piston rings 8o mg. Resin content in the used lubricating oil (according to Noack) Io, 4% 0.

b) Naphthenbasisches Schmieröl + 4% der Fraktion aus Fettsäurerückstand. Abgeschiedene Ölkohlemenge im Verbrennungsraum und auf dem Kolben: I,5 g. Beschaffenheit der Kolbenringe Alle Ringe lose und in normaler Beschaffenheit. Mittlere Abnutzung der Zylinderbüchsen o,oo4 mm. Mittlere Abnutzung der Kolbenringe 38mg. Harzgehalt im gebrauchten Schmieröl (nach N o a c k) 5.7 %0.b) Naphthenic lubricating oil + 4% of the fraction from fatty acid residue. Deposited amount of carbon in the combustion chamber and on the piston: 1.5 g. nature of the piston rings All rings loose and in normal condition. Medium wear of the cylinder liners 0.04 mm. Average wear of the piston rings 38mg. Resin content in used lubricating oil (according to N o a c k) 5.7% 0.

Claims (1)

PATENTA NS PR UC H Verwendung von Stoffgemischen, die durch Molekulardestillation aus del technischen Destillationsrückstand der rohen Fettsäuren der Paraffinoxydation erhalten wurden, als Zusatz ztt 1Iotorenschmierölen. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik ist im Erteilungsverfahren folgende Druckschrift in Betracht gezogen worden: USA.-Patentschrift . . . . . . . . . . Nr. 2 045 922.PATENTA NS PR UC H Use of mixtures of substances produced by molecular distillation from the technical distillation residue of the crude fatty acids from paraffin oxidation were obtained as an additive for 1Iotor lubricating oils. To delimit the subject of the registration From the state of the art, the following publication is to be considered in the granting procedure drawn: USA patent specification. . . . . . . . . . No. 2 045 922.
DEK112073D 1941-03-02 1941-03-02 Addition to engine lubricating oils Expired DE749260C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK112073D DE749260C (en) 1941-03-02 1941-03-02 Addition to engine lubricating oils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK112073D DE749260C (en) 1941-03-02 1941-03-02 Addition to engine lubricating oils

Publications (1)

Publication Number Publication Date
DE749260C true DE749260C (en) 1944-11-20

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Application Number Title Priority Date Filing Date
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2045922A (en) * 1934-05-28 1936-06-30 Texas Co Manufacture of lubricating oil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2045922A (en) * 1934-05-28 1936-06-30 Texas Co Manufacture of lubricating oil

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