DE1007928B - Isolating oil based on a refined mineral oil with a content of selective extracts of mineral oils - Google Patents
Isolating oil based on a refined mineral oil with a content of selective extracts of mineral oilsInfo
- Publication number
- DE1007928B DE1007928B DEO4697A DEO0004697A DE1007928B DE 1007928 B DE1007928 B DE 1007928B DE O4697 A DEO4697 A DE O4697A DE O0004697 A DEO0004697 A DE O0004697A DE 1007928 B DE1007928 B DE 1007928B
- Authority
- DE
- Germany
- Prior art keywords
- oil
- selective
- extracts
- content
- mineral
- 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
Links
Classifications
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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
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
- H01B3/22—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils hydrocarbons
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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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
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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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/104—Aromatic fractions
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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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/106—Naphthenic fractions
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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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/108—Residual fractions, e.g. bright stocks
-
- 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
- C10N2040/14—Electric or magnetic purposes
- C10N2040/16—Dielectric; Insulating oil or insulators
-
- 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
- C10N2040/14—Electric or magnetic purposes
- C10N2040/17—Electric or magnetic purposes for electric contacts
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Lubricants (AREA)
- Organic Insulating Materials (AREA)
Description
Isolieröl auf der Basis eines raffinierten Minerailöles mit einem Gehalt an Selektivextrakten von Mineralölen Die Erfindung betrifft ein Isolieröl auf der Basis eines raffinierten Mineralöles mit einem Gehalt an Selektivextrakten von Mineralölen und besteht darin, daß das Isolieröl 0,1 bis 10 Gewichtsprozent der Ölbasis an einem Selektivextrakt mit einem geringeren mittleren Molekulargewicht als die Ölbasis im Siedebereich von 150 bis 350° mit einem Hauptsiedebereich über 200°enrohält.Insulating oil based on a refined mineral oil with a Content of selective extracts of mineral oils The invention relates to an insulating oil on the basis of a refined mineral oil with a content of selective extracts of mineral oils and consists in that the insulating oil 0.1 to 10 percent by weight the oil base to a selective extract with a lower average molecular weight than the oil base in the boiling range from 150 to 350 ° with a main boiling range above Holds 200 °.
Die. Forderung der Elektroindustrie nach alterungsbeständigen im Verlustfaktor günstig liegenden Ölen, die außerdem noch gasaufnehmend sind, bereitet in der Herstellung von. Isolierölen erhebliche Schwierigkeiten. Die Gasaufnahme ist, wie sich durch intensive Versuche ergeben hat, gebunden an das Vorhandensein bestimmter aromatischer Verbindungen (Olefine, die ebenfalls gasaufnehmend sind, scheiden als besonders alterungsfreudig vollkommen aus), wobei die natürlichen, im Ausgangsöl vorhandenen Aromaten andererseits aber wenig alterungsbestän@dig sind und mit Rücksicht auf die Alterungsbeständigkeit des Endproduktes möglichst vollständig ausraffiniert werden müssen. So kommt es, daß der Schmieröl-Raffineur zwischen zwei eng beieinanderliegenden Grenzen zu arbeiten hat. Raffiniert er ein Schmieröl-Destillat so schwach, daß genügend aromatische Verbindungen im Öl verbleiben, um das Öl gasaufnehmend zu machen, dann ist dieses Öl wenig alterungsbeständig und zeigt einen wenig günstigen Verlustfaktor auf. Raffiniert er andererseits das Schmieröl-Destillat so intensiv, daß Alterungs- und Verlustfaktorneigung gut werden, dann stellt er fest, daß das erhaltene Raffinat nicht gasaufnehmend, sondern gasabspaltend geworden ist. Dabei ist unter Raffination jedes bekannte Verfahren zu verstehen, sowohl die Behandlung mit Schwefelsäure oder anderen bekannten Raffinationschemikalien wie die Behandlung mit Selektiv-Lösungsmitteln.The. Demand from the electrical industry for non-aging in the loss factor Favorably located oils, which are also gas-absorbing, are prepared in the production process from. Insulating oils have considerable difficulties. The gas intake is how through Intensive tests have shown, tied to the presence of certain aromatic Compounds (olefins, which are also gas-absorbing, separate as special aging-friendly completely), with the natural ones present in the starting oil On the other hand, aromatics are not very resistant to aging and take into account the aging resistance of the end product is refined as completely as possible Need to become. So it happens that the lube oil refiner between two closely spaced Has limits to work. Does he refine a lube oil distillate so weak that enough aromatic compounds then remain in the oil to make the oil gas-absorbing this oil is not very resistant to aging and shows a less favorable loss factor on. On the other hand, if he refines the lubricating oil distillate so intensively that aging and loss factor tendency become good, then he finds that the raffinate obtained has become gas-releasing rather than absorbing gas. It is under refining to understand any known method, both treatment with sulfuric acid or other known refining chemicals such as selective solvent treatment.
Es ist bekannt, daß aus der Destillation des Erdöles kommende Schmierölfraktionen durch selektive Lösungsmittel in aromatenfreie bzw. aromatenarme einerseits und in aromatenreiche Fraktionen andererseits zerlegt werden können und daß diese aromatenreichen Fraktionen des Schmieröles (bekannt unter dem Namen »Solvent Extrakte«) nach eingehender Raffination einem Isolieröl zugesetzt werden können und dann seine gasaufnehmende Wirkung verstärken. Diese Fraktionen sind jedoch durch eine Viskositätsdichtekonstante von größer als 920 bzw. nicht geringer als 925 (britische Patentschriften 589 149 und 589 150) gekennzeichnet. Die Schwierigkeit bei der Verwendung dieser Extrakte liegt jedoch darin, daß in diesen Molekularbereichen in den Extrakten Polycyklen enthalten sind, die an sich sehr alterungsfreudig sind, daher weitgehend aus den Extrakten ausraffiniert werden müssen, so daß diese Extrakte eine meist sehr intensive Raffination erfahren müssen, wenn es überhaupt möglich ist - und das ist eine Provenienzfrage des eingesetzten Rohöles - aus diesen Extrakten Produkte zu erhalten, die die Gasaufnahme eines Isolieröles günstig beeinflussen. Der Prozentsatz, der von diesen raffinierten. Extrakten einem Isolieröl zugesetzt werden muß, ist denn auch sehr groß und einmal mit nicht über 50 Gewichtsprozent und einmal mit nicht über 20 Volumprozent beschrieben.It is known that lubricating oil fractions resulting from the distillation of petroleum through selective solvents in aromatic-free or low-aromatic on the one hand and on the other hand can be broken down into aromatic-rich fractions and that these aromatic-rich fractions Fractions of the lubricating oil (known under the name "Solvent Extracts") after more detailed Refining an insulating oil can be added and then its gas-absorbing Enhance the effect. However, these fractions are by a viscosity density constant greater than 920 or not less than 925 (British Patent Specs 589 149 and 589 150). The difficulty in using these extracts is, however, that in these molecular ranges in the extracts polycycles are included, which are in themselves very susceptible to aging, therefore largely from the Extracts have to be refined, so that these extracts are usually very intense Need to experience refining, if at all possible - and that is a question of provenance of the crude oil used - to obtain products from these extracts that reduce gas absorption of an insulating oil. The percentage that is refined by these. Extracts must be added to an insulating oil, because it is very large and one time with not more than 50 percent by weight and once with not more than 20 percent by volume.
Es wurde nun - was als völlig überraschend anzusehen ist - gefunden, daß Selektivextrakte, die aus wesentlich niedriger siedenden Fraktionen stammen, nämlich aus der selektiven Raffination einer Kerosineinem Siedebeginn über 150° C, im Hauptsiedebereich über 200° C, jedoch unter 350° C siedend liegen, in erheblich größerem Umfange als die vorgenannten Selektivextrakte aus Schmierölen eine wesentliche Verbesserung der Gasaufnahme herbeiführen.It has now been found - which is to be regarded as completely surprising - that selective extracts that come from much lower boiling fractions, namely from the selective refining of a kerosene with an initial boiling point above 150 ° C, in the main boiling range above 200 ° C, but boiling below 350 ° C, in considerable larger in scope than the aforementioned selective extracts from lubricating oils an essential one Bring improvement in gas uptake.
rang der Gasaufnahme herbeiführen.induce gas uptake.
Die Zusätze liegen bei 0,1 bis 10 Gewichtsprozent der Ölbasis, d. h. also dabei in Prozentzahlen, die den Flammpunkt des Isolieröles nur so geringfügig beeinflussen, daß selbst im geschlossenen Tiegel nach Martens-Pensky der Abfall des Flammpunktes nur wenige Grade C (maximal 8° C) beträgt.The additives are from 0.1 to 10 percent by weight of the oil base; H. thus in percentages that only marginally affect the flash point of the insulating oil influence that even in the closed crucible according to Martens-Pensky the waste the flash point is only a few degrees C (maximum 8 ° C).
Beispiel Einem Schmieröl-Destillat im Viskositätsbereich von etwa 2,6 bei 20° E werden 4°/o eines Kerosin-Extraktes, der in an sich bekannter Weise mit einem bekannten Lösungsmittel erhalten worden ist, z. B. im vorliegenden Fall mittels Schwefel-Dioxyd, zugesetzt. Das Gemisch wird in an sich bekannter Weise mit Schwefelsäure, Lauge und Bleicherde behandelt. Der Siedebeginn des Extraktes lag bei 170° C. Bis ?00° C destillierten 20 °/o, und das Siedeende dieser Fraktion lag bei 270° C.Example A lubricating oil distillate in the viscosity range of about 2.6 at 20 ° E are 4% of a kerosene extract, which is known per se with a known solvent, e.g. B. in the present case by means of sulfur dioxide added. The mixture is in itself Treated in a known way with sulfuric acid, lye and fuller's earth. The start of boiling of the extract was at 170 ° C. Up to - 00 ° C, 20% distilled, and the end of boiling this fraction was at 270 ° C.
Das Gasaufnahmeverfahren (s. Erdöl und Kohle, 3. Jahrgang, S. 427-37, Jahrg. 1950, Th. W ö r n e r, Nürnberg) hat sich von »gasabspaltend« im unversetzten Öl bis zur intensiven »Gasaufnahme« im Geinisch verbessert. Die Baader Verseifungszahl ist von 0,12 auf 0,08 gefallen, und der Verlustfaktor ist von 3,0 - 10-33 im Tangens-Delta auf 0,1 - 10-3 gefallen.The gas uptake process (see Erdöl und Kohlen, 3rd year, pp. 427-37, year 1950, Th. Wö rner, Nuremberg) has improved from "gas-releasing" in unplaced oil to intensive "gas uptake" in Geinisch. The Baader saponification number has fallen from 0.12 to 0.08, and the loss factor has fallen from 3.0-10-33 in the tangent delta to 0.1-10-3.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO4697A DE1007928B (en) | 1956-02-03 | 1956-02-03 | Isolating oil based on a refined mineral oil with a content of selective extracts of mineral oils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO4697A DE1007928B (en) | 1956-02-03 | 1956-02-03 | Isolating oil based on a refined mineral oil with a content of selective extracts of mineral oils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1007928B true DE1007928B (en) | 1957-05-09 |
Family
ID=7350414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEO4697A Pending DE1007928B (en) | 1956-02-03 | 1956-02-03 | Isolating oil based on a refined mineral oil with a content of selective extracts of mineral oils |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1007928B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB589150A (en) * | 1944-12-14 | 1947-06-12 | James Campbell Wood Mallock | Improvements in or relating to the manufacture of oils for electrical insulating purposes |
| GB589149A (en) * | 1944-12-14 | 1947-06-12 | James Campbell Wood Mallock | Improvements in or relating to the manufacture of electrical insulating oils |
-
1956
- 1956-02-03 DE DEO4697A patent/DE1007928B/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB589150A (en) * | 1944-12-14 | 1947-06-12 | James Campbell Wood Mallock | Improvements in or relating to the manufacture of oils for electrical insulating purposes |
| GB589149A (en) * | 1944-12-14 | 1947-06-12 | James Campbell Wood Mallock | Improvements in or relating to the manufacture of electrical insulating oils |
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