DE878832C - Verfahren zur Herstellung von Schmierfetten - Google Patents
Verfahren zur Herstellung von SchmierfettenInfo
- Publication number
- DE878832C DE878832C DEN3288A DEN0003288A DE878832C DE 878832 C DE878832 C DE 878832C DE N3288 A DEN3288 A DE N3288A DE N0003288 A DEN0003288 A DE N0003288A DE 878832 C DE878832 C DE 878832C
- Authority
- DE
- Germany
- Prior art keywords
- acids
- inorganic
- lubricating
- acid
- colloidal
- 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.)
- Expired
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0052—Preparation of gels
- B01J13/0065—Preparation of gels containing an organic phase
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M5/00—Solid or semi-solid compositions containing as the essential lubricating ingredient mineral lubricating oils or fatty oils and their use
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- C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
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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
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Description
Die Erfindung bezieht sich auf die Herstellung von Schmierfetten, die aus anorganischen Kolloiden
und Schmierölen bestehen oder diese Stoffe enthalten.
Schmierfette, welche Schmieröle enthalten, die durch einverleibte anorganische Kolloide geliert
sind, sind bereits beschrieben worden; z. B. Schmierfette, die hergestellt sind aus einem
Schmieröl und Silicaaerogel oder Siliciumdioxydschmierfette, die hergestellt sind durch Verdrängen
von Wasser aus Silicahydrogel unter Verwendung flüchtiger organischer Flüssigkeiten, die ihrerseits
dann durch ein Mineralöl ersetzt werden. Im Vergleich zu gewöhnlichen Schmierfetten besitzen die
Schmierfette aus Schmieröl und anorganischem Gel hervorragende Eigenschaften hinsichtlich der
Strukturstabilität bei höheren Temperaturen. Diese Eigenschaft macht solche Schmierfette besonders
geeignet für die Schmierung von Kugellagern und anderen Maschinenteilen sowie bei Strahlantriebsturbinen
und Stahlwalzwerken.
Ein Nachteil solcher Schmierfette besteht darin, daß sie anscheinend infolge der hydrophilen Natur
der Geloberflächen gegen Wasser empfindlich sind. Infolgedessen haben sich die in der vorstehend beschriebenen
Weise hergestellten Schmierfette bei der Verwendung in Anwesenheit von Wasser als
unbeständig erwiesen. Das Endergebnis ist eine Aufspaltung der Schmierfettstruktur, welche zur
Ausfällung des anorganischen Kolloids, wie SiIiciumdioxyd,
und zur Abtrennung einer Ölphase führt.
'Es sind verschiedene Maßnahmen getroffen worden, um diese Eigenschaft zu korrigieren, und es ist
schon der Zusatz verschiedener, wasserfestmachender Stoffe vorgeschlagen worden. Es ist vorgeschlagen
worden, bei der Herstellung von Schmierfetten, welche aus einem Schmieröl, ι bis
so Gewichtsprozent eines anorganischen Gels und 0,5 bis 40 Gewichtsprozent (berechnet auf das Gel)
einer mindestens. 8 Kohlenstöffatome enthaltenden
aliphatischen Verbindung mit einer oder mehreren freien Hydroxyl- oder Mercaptogruppen, das Gemisch
der Schmierfettkomponenten während V2 bis 4 Stunden auf eine Temperatur zwischen 100 und
20001 zu erhitzen. Nach einem anderen, nicht vorveröffentlichten
Vorschlag werden Gemische aus ölartigen Flüssigkeiten, 1 bis 40 Gewichtsprozent
ungeschrumpften Gelen von Oxyden oder Hydroxyden amphoterer Metalle und organischer
Säuren mit mindestens 10 Kohlenstoffatomen aus der Gruppe der Phosphinsäuren, Phosphonsäuren,
Fettsäuren, aliphatischen Dicarbonsäuren, Aminofettsäuren, Sulfonsäuren, Naphthensäuren und
ihren chlorierten, sulfurierten und phosphorierten Abkömmlingen in Mengen von 1 bis 20 Gewichtsprozent,
berechnet auf das Gel, bei ihrer Herstellung während einer Zeit von 10 Minuten bis
6 Stunden auf eine Temperatur von 110 bis 1500
erhitzt. ■ ■
Bei Verwendung solcher wasserfestmachender Mittel bestand die normale Arbeitsweise darin, daß
das Mittel entweder dem anorganischen Gel oder in üblicherer Weise dem Schmieröl zugegeben wurde.
Anschließend werden die drei Hauptbestandteile, nämlich Zusatz, Gel und öl, verrührt und einer
scherenden Einwirkung unterworfen, um eine befriedigende Schmierfettstruktur zu erhalten.
Manchmal ist auch mäßiges Erhitzen angewandt worden. Der Hauptzweck des Erwärmens, soweit
es bisher angewandt wurde, war eine Verdünnung des Öls, so daß sich die zusätzlichen Bestandteile
leichter einverleiben ließen.
Gegenstand der vorliegenden Erfindung ist die Verbesserung der Wasserbeständigkeit von Schmierfetten,
die durch die Anwesenheit eines anorganischen kolloidalen Stoffes geliert sind, und ihrer
Herstellung.
Erfmdungsgemäß ist festgestellt worden, daß die Wasserbeständigkeit und andere Eigenschaften
von mit anorganischen kolloidalen Stoffen gelierten Schmierfetten wesentlich verbessert werden,
wenn die Bestandteile während eines Zeitraumes zwischen 20 und 180 Minuten auf eine
Temperatur zwischen 120 und 22ο101, vorzugsweise
zwischen 150 und 2000, und besonders zweckmäßig
zwischen 165 und 200'0, erhitzt werden. Weiter ist erfindungsgemäß gefunden worden, daß
diese Wärmebehandlung besonders wirksam ist, wenn während mindestens eines wesentlichen Teils
der Erhitzungsperiode ein hydrophobes, oberflächenaktives Mittel, das als wasserfestmachendes
Mittel brauchbar ist, vorliegt. Ein anderes Merkmal der vorliegenden Erfindung besteht in der Verbesserung der gelierenden Wirkung anorganischer
Kolloide, welche durch - die erwähnte Wärmebehandlung erzielt wird. Ferner ist erfindungsgemäß
festgestellt worden, daß die Wärmebehandlung von höchster Wirkung ist, wenn das anorganische
kolloidale Material vor der Einverleibung in das Gemisch der schmierfettbildenden Bestandteile
mit ι bis 30 Gewichtsprozent einer Säure, wie Phosphorsäure oder Borsäure, behandelt worden
ist. Zum Beispiel ist die Wärmebehandlung sehr wirksam, wenn als das anorganische kolloidale
Material ein kolloidales Metalloxyd verwendet wird, das 1 bis 10 Gewichtsprozent einer Mineralsäure,
insbesondere Phosphor- oder Borsäure, adsorbiert enthält.
Die anorganischen kolloidalen Stoffe, welche für
die Schmierfettbildung besonders gut brauchbar sind, umfassen anorganische Oxyde oder Hydroxyde
sowie behandelte Tone, welche nachstehend noch näher beschrieben werden. Die anorganischen,
zur Gelbildung in Schmierölen befähigten Kolloide, sind besonders Oxyde, Hydroxyde und Carbonate
von Erdalkalien, Alkalicarbonate, Siliciumdioxyd, Oxyde mehrwertiger Metalle, wie Magnesium-,
Aluminium-, Ferrioxyd, Vanadiumpentoxyd und andere Schwermetalloxyde, Sulfide mehrwertiger
Metalle, wie Ferrosulfid und Cuprosulfid, sowie einige Metallsulfate und -phosphate. Es können
Gemische solcher Stoffe verwendet werden, und unter diesen haben sich die nach den üblichen
Verfahren hergestellten synthetischen Zeolithe, wie Magnesiumsilicate oder Aluminiumsilicate, als
höchst aussichtsreich erwiesen.
Auch verschiedene natürlich vorkommende, kolloidale anorganische Verbindungen sind brauchbar,
wenn sie in der nachstehend im einzelnen beschriebenen Weise verwendet werden. Diese stellen
gewöhnlich eine komplexe Kombination aus zwei oder mehr Metalloxyden dar, die grob als
Magnesiumsilicate, Aluminiumsilicate, Magnesiumaluminiumsilicate u. dgl. bezeichnet werden und
als chemische Verbindungen von Magnesiumoxyd mit Siliciumdioxyd oder von Aluminiumoxyd mit
Siliciumdioxyd usw. betrachtet werden können. Einige Beispiele natürlich vorkommender Stoffe,
die besonders geeignet sind, sind die Bentonite, Fullererde, Hectorit und Wyoming-Montmorrilonit.
Die Magnesium-Montmorrilonite, wie uo Hectorit, haben sich als besonders wirksame
Schmierfettgelierungsmittel erwiesen; ganz besonders, wenn sie in der nachstehend beschriebenen
Weise behandelt wurden.
Damit das anorganische Kolloid seine Funktion als Gelierungsmittel erfüllen kann, muß es in einer
großoberflächigen Form vorliegen. Ein Verfahren zur Herstellung kolloidaler Stoffe besteht in der
Umwandlung anorganischer Metalloidhalogenide oder anderer brennbarer Stoffe in Ärosole, z. B.
durch Verbrennen von Siliciumtetrachlorid zwecks Bildung eines Ärosols vom kolloidalen Siliciumoxyd.
Ein anderes typisches Verfahren zur Herstellung großoberflächiger Kolloide ist die in der
amerikanischen Patentschrift 2 260 625 beschriebene Arbeitsweise. Gele können Ölen auch ohne
eine zwischen Hydrogel! Ildung und Schmierfettbildung
eingeschaltete Trockenstufe einverleibt werden. Ein typisches Verfahren für die Bildung
von Aerogelen besteht in der Bildung von Siliciumdioxydhydrogel durch Zusetzen von Schwefelsäure
zu Xatriumsilicatlösung. Das Arogel wird dann hergestellt, indem man das Wasser aus dem
Hydrogel durch eine flüchtige organische Flüssigkeit, wie Äthylalkohol, verdrängt, und das entstehende
Organogel auf eine Temperatur über der kritischen Temperatur der darin enthaltenen
Flüssigkeit erhitzt, während der Druck auf dem System genügend hoch gehalten wird, daß die
flüssige Phase bis zur Erreichung der kritischen Temperatur flüssig bleibt. Bei diesem Punkt wird
die Flüssigkeit in den gasförmigen Zustand übergeführt, ohne daß an der Gas-Flüssigkeits-Grenzschicht
Menisken gebildet werden.
Bei der Herstellung von Schmierfetten ohne Trocknungsstufe besteht ein Verfahren in der Bildung
eines Hydrogels, Verdrängen des Wassers durch ein mit Wasser mischbares organisches
Lösungsmittel, wie Alkohol, und Ersetzen des Alkohols entweder durch ein Schmieröl oder durch
ein anderes flüchtiges, mit Öl mischbares Lösungsmittel, wie Benzol. Im letztgenannten Fall wird
das Benzol dann durch ein Schmieröl ersetzt. Eine Verbesserung für beide, Arbeitsweisen besteht in
der direkten Einführung eines Hydrogels in Öl ohne zwischengeschaltete Trocknung oder zwischengeschaltete
Bildung eines Organogels. Es ist erst vor kurzem gefunden worden, daß diese direkte
Vereinigung möglich ist, wenn man eines der später genannten hydrophoben oberflächenaktiven Mittel
zusammen mit den Hauptbestandteilen, nämlich dem anorganischen Gelierungsmittel und dem
Schmieröl, einverleibt und darauf Wasser entfernt.
Bei der Herstellung von Schmierfetten auf der
Grundlage anorganischer Gele können verschiedene schmierfettbildende Grundflüssigkeiten verwendet
werden. Im allgemeinen werden vorzugsweise die gewöhnlichen mineralischen Schmieröle verwendet,
die zur Herstellung gewöhnlicher Seifenschmierfette benutzt werden. Es können synthetische
flüssige Kohlenwasserstoffe verwendet werden, welche auch verschiedene alkylierte aromatische
Kohlenwasserstoffe umfassen, wie tert.-Butylnaphthaline,
polymerisierte Olefine, z. B. geeignete flüssige Polyäthylene, Polybutylene, Polycetene
u. dgl. Auch verschiedene andere ölartige Flüssigkeiten, einschließlich von in der Natur vorkommenden
Stoffen, wie pflanzliche und tierische Öle, oder synthetische Schmiermittel, die keine Kohlenwasserstoffe
darstellen, können verwendet werden.
Beispiele für die letzterwähnte Gruppe sind die Diester von Dicarbonsäuren, wie Bis-(2-äthylhexylj-sebacat,
Bis-(methyläthyl)-bernsteinsäureester; die anorganischen Ester, wie solcher der Phosphorsäure, z. B. Tributylphosphat, Trioctylphosphat,
Tricresylphosphat und Dioctylcresylphosphat. Es können auch Gemische solcher Schmiermittel verwendet werden. Für besondere
Anwendungszwecke, welche Verwendung bei hohen Temperaturen oder entsprechende Beanspruchungen
mit sich bringen, können mit Vorteil die polymeren Silicone und flüssige Fluorkohlenwasserstoffe
verwendet werden. Falls Nichtbrennbarkeit erwünscht ist, sind halogenierte Kohlenwasserstoffe,
wie Hexachlorbutadiene, geeignet.
Nach dem Grundgedanken der vorliegenden Erfindung werden die beiden Hauptbestandteile,
nämlich das Schmieröl und das anorganische Koloid, zusammen während eines Zeitraums
zwischen 20 und 180 Minuten auf eine Temperatur zwischen 120 und 2200 erhitzt. Der bevorzugte
Bereich, in welchem günstigste Wirkungen erzielt worden sind, liegt zwischen 150 und 2000 und besonders
zweckmäßig zwischen 165 und 200'0. Die bevorzugte Dauer der Erhitzung liegt zwischen 30
und 120 Minuten. Das Erhitzen kann bei Atmosphärendruck
oder unter Vakuum oder bei überatmosphärischem Druck durchgeführt werden. Wenn das Schmierfett aus einem anorganischen
Alkogel gebildet werden soll, wird die Erhitzungsstufe zweckmäßig unter Vakuum durchgeführt, so
daß gleichzeitig während der Hitzebehandlung Alkohol entfernt wird. Während des Erhitzens kann
das Gemisch der Bestandteile zwecks Schaffung einer geeigneten Dispersion des Gels im Schmieröl
gerührt oder einer scherenden Einwirkung, wie Mahlen, unterworfen werden, so daß sich eine
Schmierfettstruktur bildet.
Das vorliegende Verfahren ist besonders geeignet zur Herstellung von Schmierfetten, welche
oberflächenaktive Mittel enthalten. Bevorzugte Gruppen dieser oberflächenaktiven Mittel umfassen
besonders kationisch oberflächenaktive Mittel, insbesondere Amine, wie höhere aliphatische Amine
und Polyamine, sowie ihre Salze, Amide und auch quarternäre Ammoniumverbindungen. Typische Beispiele
sind: Heptadecylamin, Dimethylbenzyloctadecylammoniumchlorid, Amine, welche durch
Ammonolyse von chloriertem Paraffin erhalten werden, höhere Fettsäuresalze polymerer Additionsprodukte,
wie der aus Acrolein und Ammoniak oder von Diallylamin und Schwefelwasserstoff abgeleiteten; Teilamide aus höheren
Fettsäuren und Polyalkylenpolyaminen, wie das Ölsäureamid von Tetraäthylenpentamin.
Eine hoch wirksame Gruppe wasserbeständig machender Mittel umfaßt die Kondensationsprodukte eines Polyamins mit einer alkyl- oder alkenylsubstituierten
Bernsteinsäure oder ihrem Anhydrid bzw. ihrem sauren Ester oder einem alkyl-
oder alkenylsubstituierten Bernsteinsäuremonoamid. Eine bevorzugte Gruppe aus dieser Klasse
umfaßt die Kondensationsprodukte von Alkylendiaminen mit dieser Säuregruppe. Beispiele hierfür
sind die Kondensationsprodukte von Dodecenylbernsteinsäureanhydrid mit Äthylendiamin und
Octadecenylbernsteinsäuremonoamid mit Äthylendiamin.
Bei der Herstellung von wasserbeständigen Schmierfetten aus anorganischen Gelen, wie SiIiciumdioxyd,
können auch wasserunlösliche Seifen, wie Aluminiumstearat, Aluminium- 12-oxystearat,
Bleistearat oder andere hydrophobe Salze aus mehrwertigen Metallen und organischen Säuren
verwendet werden.
Wie oben erwähnt, schafft die kombinierte Wirkung der Einverleibung eines oder mehrerer
wasserfestmaehender Mittel zusammen mit der das Hauptmerkmal der vorliegenden Erfindung darstellenden
Wärmebehandlung ein Schmierfett, welches gegenüber der schädigenden Einwirkung
ίο von Wasser außerordentliche Widerstandsfähigkeit
aufweist. Gemäß vorliegender Erfindung her- j gestellte Schmierfette sind vorzugsweise solche mit
2 bis ι ο Gewichtsprozent des anorganischen Geliermittels,
berechnet auf die gesamte Schmierfettmasse, und io bis 50 Gewichtsprozent des anorganischen
Gelierungsmittels eines oder mehrerer die Wasserbeständigkeit verbessernder Stoffe.
Bei der Herstellung von Schmierfetten unter Verwendung von Tonen und anderen ionenaustauschenden
Stoffen, z. B. von synthetischen Zeolithen, hat es sich als zweckmäßig erwiesen, den
Ton oder Zeolith mit einem Amin oder einer quarternären Ammoniumverbindung, wie Dimethyldioctadecylammoniumchlorid,
zu behandeln, um einen großen Anteil der darin enthaltenen austauschfähigen Natriumionen zu ersetzen. Der Ton
oder Zeolith wird dadurch oleophil und läßt sich leicht mit einem Schmieröl kombinieren, welches
dann erfindungsgemäß in der oben beschriebenen Weise erhitzt werden kann. Die folgenden Beispiele
erläutern die durch das erfindungsgemäße Verfahren erzielbaren Vorteile.
Wyoming-Bentonit wurde im Wasser dispergiert und durch Zusetzen eines hochmolekularen aliphatischen,
quarternären Ammoniumsalzes geliert. Nach Auswaschen wurde das entstandene Hydrogel
einem mineralischen Schmieröl einverleibt und aus dem Gemisch durchErhitzen auf 150° während
20 Minuten und anschließendes Mahlen ein Schmierfett hergestellt. Ein Muster des in gleicher
Weise, aber unter Auslassung der Hitzebehandlung, hergestellten Schmierfettes erforderte zur
Bildung eines Schmierfettes von bestimmter Konsistenz mehr Bentonit als im Falle der Erhitzung
der Schmierfettbestandteile.
5 Gewichtsteile einer wäßrigen Dispersion von Hectorit wurden durch Zugabe von Octadecylaminacetat
geliert. Das entstehende Hydrogel wurde zu mineralischem Öl zugegeben, und die Bestandteile
wurden 1 Stunde auf 17ο10'erhitzt. Das entstehende
Schmierfett zeigt nach dem Mahlen hohe Widerstandsfähigkeit
gegenüber der Einwirkung von Wasser.
B e i s ρ i el 3
Ein Siliciumdioxyd-Aluminiumoxyd-Hydrogel, das Siliciumoxyd und Aluminiumoxyd in einem
Mengenverhältnis von 90 : 10 enthielt, wurde zu einem Mineralöl zugesetzt, welches Aluminiumstearat
gelöst enthielt. Das Gemisch der Komponenten wurde 30 Minuten auf 1900 erhitzt und
dann bis zur Erzielung einer minimalen Penetration des Schmierfettes gemahlen. Das erhaltene
Schmierfett enthielt 6 Gewichtsprozent des SiIiciumoxyd-Aluminiumoxyd-Gels
und 2 Gewichtsprozent Aluminiumstearat. Wenn es während Stunden der Einwirkung von heißem Wasser
ausgesetzt wurde, trat keine Zerlegung ein.
B ei s ρ i el 4
Es wurde ein Schmierfett durch Erhitzen von Gewichtsteilen Siliciumdioxydalkogel, 1 Gewichtsteil
Dimethyldioctadecylaminhydrochlorid mit 95 Gewichtsteilen eines mineralischen Schmieröls
hergestellt. Die erhaltene Masse wurde V2 Stunde auf 17010' erhitzt und zeigte gegenüber
der Einwirkung von heißem Wasser gutes Widerstandsvermögen.
Claims (9)
- PATENTANSPRÜCHE:i. Verfahren zur Herstellung von Schmierfetten, die durch anorganische Kolloide gelierte Schmieröle, insbesondere mineralische Schmieröle, enthalten, dadurch gekennzeichnet, daß die Schmieröle und die anorganischen Kolloide gemeinsam während eines Zeitraumes von 20 bis 180 Minuten, vorzugsweise von 30 bis 120 Minuten, auf eine Temperatur von 120 bis 22O°, vorzugsweise von 150 bis 2oo:°', insbesondere 165 bis 2oo!°;, erhitzt werden unter Ausschluß solcher Schmierfette, welche eine min-. destens 8 Kohlenstoffatome enthaltende aliphatische Verbindung mit einer oder mehreren freien Hydroxyl- oder Mercaptogruppen oder eine organische Säure mit mindestens 10 Kohlenstoffatomen aus der Gruppe der Phosphinsäuren, Phosphonsäuren, Fettsäuren, aliphatischen Dicarbonsäuren, Aminosäuren, Sulfonsäuren, Naphthensäuren und der chlorierten, sulfurierten und phosphorierten Abkömmlingen derselben enthalten.
- 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Gemisch während der Erhitzung einer scherenden Einwirkung unterworfen wird.
- 3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß als anorganisches Kolloid Aerogele verwendet werden.
- 4. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß als anorganisches Kolloid kolloidale Metalloxyde oder -hydroxyde, kolloidale Kieselsäure, kolloidale Tone oder synthetische Zeolithe verwendet werden.
- 5. Verfahren nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß die verwendeten anorganischen Kolloide vor dem Vermischen mit dem anderen Bestandteil bzw. den Bestandteilen des Schmierfettgemisches mit 1 bis 30 Gewichtsprozent einer Säure behandelt worden sind.
- 6. Verfahren nach Anspruch ι bis 5, dadurch gekennzeichnet, daß die verwendeten kolloidalen Metalloxyde 1 bis 10% einer Mineralsäure, insbesondere Phosphor- oder Borsäure, adsorbiert enthalten.
- 7. Verfahren nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß dem Gemisch von Schmierölen und anorganischen Kolloiden noch oberflächenaktive Mittel zugesetzt werden.
- 8. Verfahren nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß als oberflächenaktives Mittel kationisch-oberflächenaktive Mittel, wie Amine, Aminsalze, Amide oder quarternäre Ammoniumverbindungen verwendet werden.
- 9. Verfahren nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß als oberflächenaktives Mittel hydrophobe Salze organischer Säuren und mehrwertiger Metalle verwendet werden.© 5033 5.53
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US133962A US2623852A (en) | 1949-12-19 | 1949-12-19 | Oil composition |
Publications (1)
Publication Number | Publication Date |
---|---|
DE878832C true DE878832C (de) | 1953-06-08 |
Family
ID=22461119
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN3287A Expired DE864722C (de) | 1949-12-19 | 1950-12-16 | Verfahren zur Herstellung von Schmierfetten |
DEN3288A Expired DE878832C (de) | 1949-12-19 | 1950-12-17 | Verfahren zur Herstellung von Schmierfetten |
DEN3294A Expired DE934070C (de) | 1949-12-19 | 1950-12-20 | Schmierfett |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN3287A Expired DE864722C (de) | 1949-12-19 | 1950-12-16 | Verfahren zur Herstellung von Schmierfetten |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN3294A Expired DE934070C (de) | 1949-12-19 | 1950-12-20 | Schmierfett |
Country Status (6)
Country | Link |
---|---|
US (1) | US2623852A (de) |
BE (1) | BE500080A (de) |
DE (3) | DE864722C (de) |
FR (1) | FR1031728A (de) |
GB (3) | GB706772A (de) |
NL (1) | NL74490C (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE939946C (de) * | 1952-07-15 | 1956-03-08 | Bataafsche Petroleum | Schmierfette |
DE1111757B (de) * | 1954-11-27 | 1961-07-27 | Socony Mobil Oil Co Inc | Verfahren zur Herstellung von Schmierfett |
DE1141402B (de) * | 1959-12-11 | 1962-12-20 | Iashellia Res Ltd | Schmierfett |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2885360A (en) * | 1951-09-08 | 1959-05-05 | Minerals & Chemicals Corp Of A | Clay bodied organic liquids and a process for the preparation thereof |
US2761844A (en) * | 1951-11-07 | 1956-09-04 | Gulf Research Development Co | High temperature lubricating compositions |
US2739121A (en) * | 1951-12-14 | 1956-03-20 | Degussa | Thickened hydrophobic lubricating compositions |
US2790776A (en) * | 1952-08-26 | 1957-04-30 | Shell Dev | Water-resistant gels and their manufacture |
US2714091A (en) * | 1952-09-02 | 1955-07-26 | Ca Nat Research Council | Preparation of lubricating grease |
US2831809A (en) * | 1952-11-25 | 1958-04-22 | Shell Dev | Onium clay grease containing surface active agent |
BE526855A (de) * | 1953-03-02 | |||
US2797196A (en) * | 1953-08-03 | 1957-06-25 | Pan American Petroleum Corp | Oil base drilling fluid |
GB765947A (en) * | 1954-01-21 | 1957-01-16 | Bataafsche Petroleum | Process for the preparation of lubricating greases |
GB768630A (en) * | 1954-04-28 | 1957-02-20 | Bataafsche Petroleum | Process for the preparation of lubricating greases |
DE1024658B (de) * | 1954-10-08 | 1958-02-20 | Alpha Molykote Corp | Verfahren zum nachtraeglichen Einbau von chemisch bzw. thermisch beeinflussbaren Substanzen in Schmierfette |
US2860104A (en) * | 1955-08-29 | 1958-11-11 | Shell Dev | High temperature inorganic gel grease compositions |
US2967828A (en) * | 1955-09-13 | 1961-01-10 | Nopco Chem Co | Siliceous amino compounds and lubricating grease containing same |
US2927893A (en) * | 1955-09-20 | 1960-03-08 | Minnesota Mining & Mfg | Novel composition of improved lubricating properties comprising a fluorochloro polymer |
US2927894A (en) * | 1955-09-20 | 1960-03-08 | Minnesota Mining & Mfg | Novel composition of improved lubricating properties comprising a fluorochloro polymer |
US2927895A (en) * | 1955-09-20 | 1960-03-08 | Minnesota Mining & Mfg | Novel composition of improved lubricating properties comprising a fluorochloro polymer |
BE553337A (de) * | 1955-12-12 | |||
BE553495A (de) * | 1955-12-20 | |||
DE1049522B (de) * | 1956-05-04 | 1959-07-02 | Godfrey L. Cabot, Inc., Boston, Mass. (V. St. A.) | Wasserbeständiges Hochtemperaturschmierfett |
NL101312C (de) * | 1956-08-27 | |||
US2971922A (en) * | 1957-09-23 | 1961-02-14 | American Colloid Co | Organophilic mineral compositions |
US2958578A (en) * | 1958-03-12 | 1960-11-01 | Chester L Baker | Manufacture of finely divided metal silicate products |
NL239497A (de) * | 1958-05-27 | |||
US3115249A (en) * | 1958-07-07 | 1963-12-24 | Reynolds Metals Co | Extrusion system |
NL261347A (de) * | 1960-02-18 | |||
US3131148A (en) * | 1961-01-13 | 1964-04-28 | Monsanto Chemicals | Thickened compositions |
US3049498A (en) * | 1961-05-16 | 1962-08-14 | Minerals & Chem Philipp Corp | Agent for gelling organic liquids and organic liquids gelled therewith |
US3174930A (en) * | 1961-06-05 | 1965-03-23 | Warren Refining And Chemical C | Method of preparing an aluminum oxide gel and lubricating compositions thereof |
US3383229A (en) * | 1963-07-17 | 1968-05-14 | Exxon Standard Sa | Acid emulsion pastes |
US3271177A (en) * | 1965-04-30 | 1966-09-06 | Kvp Sutherland Paper Co | Wax compositions and coated articles |
US3497371A (en) * | 1968-01-04 | 1970-02-24 | Allied Chem | Water insoluble amine containing bitumen emulsions |
US4116866A (en) * | 1977-07-01 | 1978-09-26 | N L Industries, Inc. | Organophilic clay gellant |
US5721322A (en) * | 1997-01-24 | 1998-02-24 | Arizona Chemical Company | Polyepichlorohydrin-based tri-block additive for surface modification of polymer films and articles |
SE536057C2 (sv) * | 2011-08-25 | 2013-04-16 | Scania Cv Ab | Anordning innefattande katjonbytare för att minska surheten i motorolja samt motor med en sådan anordning |
BR102015015617B1 (pt) * | 2015-06-26 | 2022-10-11 | Oxiteno S.A. Indústria E Comércio | Composição para fluidos de perfuração com fase oleosa baseada em diésteres |
CN105199115B (zh) * | 2015-10-27 | 2021-01-12 | 中国林业科学研究院林产化学工业研究所 | 一种多孔渗水的三维网状结构的可注射水凝胶的制备及其应用 |
CN108998194B (zh) * | 2018-09-14 | 2021-07-27 | 闽江学院 | 一种废润滑油脱色方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2033856A (en) * | 1934-07-05 | 1936-03-10 | Claude R Smith | Compounds of bentonite with organic bases and process of producing same |
US2206090A (en) * | 1937-05-17 | 1940-07-02 | Warwick Chemical Co | Waterproofing composition and similar emulsion |
US2260625A (en) * | 1937-07-03 | 1941-10-28 | Monsanto Chemicals | Gel and lubricant made therefrom |
US2248636A (en) * | 1939-03-25 | 1941-07-08 | Gen Electric | Bentonite product |
US2334517A (en) * | 1941-03-28 | 1943-11-16 | Procter & Gamble | High molecular weight surface active amines |
US2412929A (en) * | 1942-05-18 | 1946-12-17 | Crane Co | Lubricant |
US2460632A (en) * | 1946-04-08 | 1949-02-01 | Socony Vacuum Oil Co Inc | Spark plug thread lubricant |
US2531440A (en) * | 1947-03-29 | 1950-11-28 | Nat Lead Co | Lubricants |
US2554222A (en) * | 1947-10-28 | 1951-05-22 | Shell Dev | Lubricants |
-
0
- BE BE500080D patent/BE500080A/xx unknown
-
1949
- 1949-12-19 US US133962A patent/US2623852A/en not_active Expired - Lifetime
-
1950
- 1950-12-15 GB GB30652/50A patent/GB706772A/en not_active Expired
- 1950-12-16 FR FR1031728D patent/FR1031728A/fr not_active Expired
- 1950-12-16 DE DEN3287A patent/DE864722C/de not_active Expired
- 1950-12-17 DE DEN3288A patent/DE878832C/de not_active Expired
- 1950-12-18 GB GB30790/50A patent/GB697670A/en not_active Expired
- 1950-12-19 GB GB30919/50A patent/GB703169A/en not_active Expired
- 1950-12-19 NL NL158030A patent/NL74490C/xx active
- 1950-12-20 DE DEN3294A patent/DE934070C/de not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE939946C (de) * | 1952-07-15 | 1956-03-08 | Bataafsche Petroleum | Schmierfette |
DE1111757B (de) * | 1954-11-27 | 1961-07-27 | Socony Mobil Oil Co Inc | Verfahren zur Herstellung von Schmierfett |
DE1141402B (de) * | 1959-12-11 | 1962-12-20 | Iashellia Res Ltd | Schmierfett |
Also Published As
Publication number | Publication date |
---|---|
BE500080A (de) | |
US2623852A (en) | 1952-12-30 |
NL74490C (de) | 1953-11-16 |
FR1031728A (fr) | 1953-06-25 |
GB703169A (en) | 1954-01-27 |
GB706772A (en) | 1954-04-07 |
DE864722C (de) | 1953-01-26 |
DE934070C (de) | 1955-10-13 |
GB697670A (en) | 1953-09-30 |
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