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DE1284012B - Schmierfettmischungen - Google Patents

Schmierfettmischungen

Info

Publication number
DE1284012B
DE1284012B DES82042A DES0082042A DE1284012B DE 1284012 B DE1284012 B DE 1284012B DE S82042 A DES82042 A DE S82042A DE S0082042 A DES0082042 A DE S0082042A DE 1284012 B DE1284012 B DE 1284012B
Authority
DE
Germany
Prior art keywords
weight
lubricating
antimony
clays
lubricating grease
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.)
Pending
Application number
DES82042A
Other languages
English (en)
Inventor
Caruso Gerald Paul
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.)
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
Original Assignee
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
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.)
Filing date
Publication date
Application filed by SHELL INT RESEARCH, Shell Internationale Research Maatschappij BV filed Critical SHELL INT RESEARCH
Priority claimed from US395024A external-priority patent/US3370007A/en
Publication of DE1284012B publication Critical patent/DE1284012B/de
Pending legal-status Critical Current

Links

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    • C10M169/00Lubricating 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
    • C10M169/06Mixtures of thickeners and additives
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    • C10M2201/02Water
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    • C10M2201/062Oxides; Hydroxides; Carbonates or bicarbonates
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    • C10M2201/066Molybdenum sulfide
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Description

Es ist bekannt, Schmieröle mit Tonen, z. B. mit bis 0,6 Äquivalenten der genannten Fettsäuren (georganophilen Tonen zu verdichten. Solche Schmier- . sättigt und ungesättigt) und einem Gemisch aus fette haben aber, falls man ihnen Hochdruckzusätze "1 Äquivalent Polyäthylenpolyaminen, wobei 20 bis beimischt, den Nachteil,, daß manchmal eine uner- 80 Gewichtsprozent des Gemisches Polyamine umwünschte Erweichung der Schmierfette eintritt. Weiter 5 fassen, die 2 bis 3 Stickstoffatome enthalten, während ist auch der Zusatz von Erdalkalicarbonaten zu die restliche Fraktion Polyäthylenpolyamin mit einem Schmierölen bekannt. Der Zusatz von Erdalkali- durchschnittlichen Molgewicht im Bereich von 200 bis carbonaten zu mit organophilen Tonen verdichteten 500 darstellt.
Schmierölen ist dagegen nicht bekannt. Andere geeignete Aminoamide sind Aminoamide
Es wurde nun gefunden, daß Schmierfette, die mit io von Polyaminooxyverbindungen mit durchschnittlich oleophilen Tonen geliert worden sind, hinsichtlich mindestens 3 Aminostickstoffatomen und Oxygruppen. ihrer Hochdruckeigenschaften bzw. Belastbarkeit eine ; Die bevorzugten Ausgangsstoffe zur Herstellung solsynergistische Wirksamkeit aufweisen, wenn ■ man eher Polyaminooxyverbindungen sind Epichlorhydrin ihnen Erdalkalicarbonate und gegebenenfalls MoS2, und Ammoniak.
amorphes Antimonsulfid und/oder Bleinaphthenat 15 Die zur Herstellung von Aminoamiden zu verwenzusetzt. . denden Fettsäuren haben 10 bis 22 Kohlenstoffatome.
Wenn das Erdalkalicarbonat der einzige Hoch- Wenn mindestens 50% der Säuren ungesättigt sind, druckzusatz ist, wird «s in Mengen von 3 bis 7,5 Ge- können solche mit 17 bis 19 Kohlenstoffatomen verwichtsprozent zugesetzt. Bei Verwendung in Verbin- wendet werden. Wenn jedoch die gesättigten Säuren dung mit den MoS2 oder Sb2S3 beträgt die Menge des ao überwiegen, sollen die Säuren 10 bis 16 Kohlenstoff-Carbonats 0,03 bis 1,5 Gewichtsprozent. atome besitzen. Man kann auch ein Gemisch von
Als Erdalkalicarbonate werden Calcium-, Magne- Fettsäuren verwenden.
shim- oder Bariumcarbonat, vorzugsweise in reinem Weitere Säuren sind ölsäure und Tallölsäuren der
Zustand, verwendet. Kalk wird jedoch bevorzugt. Capron-, Undecyl-, Lauryl-, Myristin- und Palmitin-AIs SB2S3 ist ein amorphes Antimonsulfid zu ver- 35 säure. Die Aminoamide werden durch Erhitzen der wenden. Ein kristallines Antimonsulfid dagegen Fettsäuren und Polyamine bei 125 0C und 250°C in würde bei der Anwendung ein Scheuern an den 0,5 und 16 Stunden hergestellt.
Metallteilen verursachen. Die amorphen Antimon- Als Schmieröle werden raffinierte, unraffinierte oder
sulfide (z. B. Antimontrisulfid, Antimontetrasulfid oder halb raffinierte, paraffinische, naphthenische oder Antimonpentasulfid und Gemische dieser) schwanken 30 asphaltische Mineralöle mit einer Viskosität von 50 in der Farbe von Gelb bis Grau. Sie werden z.B. bis 4000 SUS bei 38° C oder auch synthetische Schmiererhalten durch Fällen des Antimonsulfids aus einer öle verwendet.
wäßrigen Lösung eines wasserlöslichen Antimonsalzes, Andere übliche Schmierzusätze, z. B. aromatische
wie Antimonylchlorid, durch Behandlung mit einem Amine, Alkalinitrite, sowie die Reaktionsprodukte aus Sulfid, wie Natriumsulfid oder Schwefelwasserstoff. 35 Terpenen mit einem phosphorhaltigen Halogenid
Das Bleinaphthenat erfüllt die Funktion, daß es die können ebenfalls zugesetzt werden.
Hochdruckeigenschaften der Schmierfette, die unter Die Schmierfette werden nach bekannten Methoden
trockenen Bedingungen erreicht werden, auch unter durch Mischen hergestellt.
nassen Bedingungen aufrechterhält und manchmal Bevorzugte Schmierfette sind solche, welche einen
sogar in unerwarteter Weise noch höhere Hochdruck- 40 überwiegenden Anteil an mineralischem Schmieröl, eigenschaften herbeiführt. Die Menge des Bleinaph- 2,5 bis 10 Gewichtsprozent Ton, 0,25 bis 1 % Erdthenats soll 0,1 und 0,75%, berechnet auf das Gewicht alkalicarbonat, 0,0 bis 1,25, vorzugsweise 0,25 bis 1,0, des Schmierfettes, betragen. Gewichtsprozent Sulfid, 0,0 bis 0,65 Gewichtsprozent
Als Ausgangstone für die zur Herstellung der oleo- Bleinaphthenat und 2,5 bis 5 Gewichtsprozent einer philen Tone dienen Montmorillonite, wie Natrium-, 45 hydrophoben Aminoverbindung enthalten, wobei das Kalium-, Lithium- und die übrigen Bentonite, speziell Gewicht von Ton und Aminoverbindung ausgedrückt vom Typ des Wyoming Bentonite. Bevorzugt werden wird als getrennte Komponenten, unabhängig davon, die Magnesiumbentonite (Hektorite). ob sie als physikalische Gemische der beiden Stoffe
Diese Tone werden modifiziert durch Absorption oder als Aminotone vorliegen. Optimale Mischungen einer oder mehrerer olefinischer, kationischer, ober- 50 sind solche, die 3 bis 7% Hektoritton, 0,3 bis 0,7% flächenaktiver Mittel, wie aliphatische Amine, Imid- Calciumcarbonat, 0,5 bis 0,85 % amorphes Antimonazoline und Aminoamide. Die Tone werden in Mengen trisulfid oder Molybdändisulfid, 0,35 bis 0,66 % Bleivon 2,5 bis 10 Gewichtsprozent den Schmierölen bei- petroleumnaphthenat und 2 bis 4,5 Gewichtsprozent gemischt. der Aminoamine enthalten, die hergestellt sind aus
Der Ausdruck »oleophiler Ton« umfaßt Tone, wenn 55 0,3 bis 0,6 Äquivalenten C10-22-FeWSaUrCn pro Äqui-(absorbiert oder damit durch Umsetzung verbunden) valent des Gemisches von Polyäthylenpolyaminen, wie eine ausreichende Menge einer Ammoniakbase vor- oben beschrieben,
liegt, um ein oleophiles Produkt zu bilden. Die so- Beisüiell
genannten »Onium-Tone« enthalten Reaktionspro-
dukte aus oleophilen Ammoniumbasen (oder ihren 60 Zu Vergleichszwecken wurden in sämtlichen Bei-Salzen) und Ton. spielen Mineralöle verwendet. Das gesamte Schmier-
AIs aliphatische Amine und Imidazoline werden fett enthielt Hektoritton, der wasserfest gemacht war solche mit mindestens 18 Kohlenstoffatomen ver- mit 60 %, berechnet auf das Gewicht des Tons, mit wendet. Bevorzugt sind jedoch Aminoamide, welche einem Aminoamid, das gebildet war aus Tallölfettaus aliphatischen Monocarbonsäuren mit 10 bis 65 säuren und dem Gemisch von Polyäthylenpolyaminen, Kohlenstoffatomen und Polyalkylenpolyaminen ge- das oben beschrieben worden ist als Bodenprodukt, bildet werden. Noch günstigere Aminoamine sind das bei der Herstellung von Äthylendiamin erhalten solche, die gebildet werden durch Umsetzung von 0,3 worden war.
Der Timken-Hochdrucktest ist beschrieben in ASTM Bulletin, 228, Februar 1958, S. 28 bis 31.
Das bei diesen Versuchen verwendete amorphe Antimontrisulfid wurde hergestellt durch Fällung, indem Schwefelwasserstoff zu einer wässerigen Lösung von Antimontrichlorid zugeführt wurde. Die so hergestellten Sulfide waren ziegelrot und hatten vor dem Schmelzen im Vergleich zu kristallinen Antimonsulfiden ein verhältnismäßig niedriges spezifisches Gewicht. Die modifizierten Schmierfette wurden hergestellt durch Vorformen der Schmierfette nach dem beschriebenen direkten Transferprozeß mit darauffolgender Zugabe des Antimontrisulfids und/oder des Bleinaphthenats in Form eines Ölschlammes.
Tabelle I
einem anderen üblichen Verdickungsmittel an Stelle von organophilen Tonen kombiniert.
Schmier
fett
Sb2S3 CaCO3 Molybdän-
disulfid
Timken
Gleiten
■Test, kg
Fressen
A 0,6 9,1
B 4,6 15,9 18,1
C 6,6 20,4 22,7
D 0,75 13,6 15,9
E 0,3 0,6 13,6 15,9
F 0,5 0,6 18,1 20,4
G 0,75 0,6 22,7 24,8
H 0,25 1,6 15,9 18,1
I 0,5 1,2 24,8
J 5,0 15,9 18,1
K 7,0 15,9 18,1
L 1,0 1,0 18,1 20,4
Wie die nachstehenden Vergleichsversuche mit einem Seifenschmierfett (etwa 8 Gewichtsprozent Lithiumhydroxystearat) zeigen, tritt ein entsprechender günstiger Effekt bezüglich der Belastbarkeit im Timken-Test nicht ein, wenn man die Erdalkalicarbonate mit
S Lithiumseifen-
Schmierfett
Tabelle II ASTM-
Penetration,
unbearbeitet/
60 Schläge
Timken-Test,
kg
Fressen
IO
a
b
C
CaCO3
Gewichts
prozent
255/254
269/266
9,1
9,1
13,6*)
12
6
10
*) Nicht geprüft bei 9,1 kg.
Beispiel 2
Es wurden Schmierfette hergestellt durch Vermählen eines hydrophoben, oleophilen Ammoniumtones und eines Schmieröls mit einer Viskosität von 55 Sec. SSU bei 99 0C zwecks Herstellung eines Schmierfettes mit einem Ammoniumtongehalt von 6,18%. Dieses Schmierfett entsprach nicht dem Timken-Test bei 9,1 kg Druck. Es versagte auch beim Timken-Test mit 9,1 kg Druck bei Anwesenheit von Antimontrisulfid. Die Modifizierung des letztgenannten Schmierfettes mit Hilfe von 0,4% Calciumcarbonat erhöhte die Timken-Zahl auf 13,6 kg, während eine Erhöhung des Calciumcarbonats auf 1% die Timken-Zahl auf 22,7 kg erhöhte.

Claims (1)

  1. Patentanspruch:
    Schmierfett, bestehend aus einem Schmieröl, einem oleophilen Ton, einem Erdalkalicarbonat und gegebenenfalls MoS2, amorphem Atimonsulfid und/oder Bleinaphthenat.
DES82042A 1961-10-17 1962-10-15 Schmierfettmischungen Pending DE1284012B (de)

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US14577161A 1961-10-17 1961-10-17
US383503A US3271309A (en) 1961-10-17 1964-07-17 Grease compositions
US395024A US3370007A (en) 1964-09-08 1964-09-08 Extreme-pressure grease compositions

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DE19651594594 Pending DE1594594A1 (de) 1961-10-17 1965-09-06 Schmierfettgemisch

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BE (3) BE666946A (de)
CH (1) CH447443A (de)
DE (3) DE1284012B (de)
FR (1) FR88753E (de)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814516A1 (de) * 1977-04-06 1978-10-19 Rocol Ltd Schmiermittel

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344065A (en) * 1965-01-25 1967-09-26 Molykote Produktions G M B H Extreme pressure lubricants
US4156655A (en) * 1978-01-30 1979-05-29 Exxon Research & Engineering Co. Grease composition resistant to salt water corrosion
US4435296A (en) 1981-05-22 1984-03-06 The British Petroleum Company Limited Lubricating grease
US20090325829A1 (en) * 2008-06-27 2009-12-31 Cowan Sandra S Reduced Molybdenum Grease Formulation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1204605A (en) * 1916-02-26 1916-11-14 James M Stafford Device for locating and raising sunken vessels.
US2704276A (en) * 1954-02-12 1955-03-15 Gulf Research Development Co Lubricating compositions
FR1282216A (fr) * 1959-12-15 1962-01-19 Exxon Research Engineering Co Procédé de fabrication d'additifs solubles dans les huiles de pétrole

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831809A (en) * 1952-11-25 1958-04-22 Shell Dev Onium clay grease containing surface active agent
NL105902C (de) * 1955-12-20

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1204605A (en) * 1916-02-26 1916-11-14 James M Stafford Device for locating and raising sunken vessels.
US2704276A (en) * 1954-02-12 1955-03-15 Gulf Research Development Co Lubricating compositions
FR1282216A (fr) * 1959-12-15 1962-01-19 Exxon Research Engineering Co Procédé de fabrication d'additifs solubles dans les huiles de pétrole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814516A1 (de) * 1977-04-06 1978-10-19 Rocol Ltd Schmiermittel

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BE666946A (de) 1966-01-17
DE1594594A1 (de) 1971-04-22
GB1041509A (en) 1966-09-07
BE623658A (de)
FR88753E (de) 1967-06-07
NL6509144A (de) 1966-01-18
GB960059A (en) 1964-06-10
NL284414A (de)
GB1100189A (en) 1968-01-24
BE669245A (de) 1966-03-07
US3271309A (en) 1966-09-06
NL6511631A (de) 1966-03-09
CH447443A (de) 1967-11-30

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