GB665994A - Improvements relating to the separation of solid impurities from fluids - Google Patents
Improvements relating to the separation of solid impurities from fluidsInfo
- Publication number
- GB665994A GB665994A GB1621748A GB1621748A GB665994A GB 665994 A GB665994 A GB 665994A GB 1621748 A GB1621748 A GB 1621748A GB 1621748 A GB1621748 A GB 1621748A GB 665994 A GB665994 A GB 665994A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- engulfant
- coagulant
- substantially immiscible
- impurities
- 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
-
- 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
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0016—Working-up used lubricants to recover useful products ; Cleaning with the use of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
- C10G31/09—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by filtration
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)
- Combustion & Propulsion (AREA)
- Lubricants (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
A process for separating solid impurities from lubricating oil comprises bringing the oil to be treated into contact with a coagulant for particles suspended in the oil and with a further substance which provides a substrate or engulfant for the coagulated particles. "Engulfant" denotes a liquid substantially immiscible with the oil to be filtered and providing an interface with the oil through which the coagulated particles pass from the oil to the engulfant much more readily than in the other direction, the impurities to be separated being preferentially wetted by the engulfant as compared with the oil to be treated. The coagulant is preferably a liquid substantially immiscible with the oil and the engulfant more viscous than the oil. The coagulant may be a nitrogenous base such as aniline, cyclohexylamine, pyridine, dicyclohexylamine, diethylaniline, quinoline, the toluidenes and xylidenes, the hydroxy derivatives of the above compounds and the alkylolamines. Examples of suitable engulfants are the glycols, ethyl cellulose and methyl cellulose (liquid forms, or solid forms in solution) mildly oxidized castor oil and the fatty acid esters of glycerol substantially immiscible with the oil. Mixtures may be used in each case. The coagulant and engulfant are preferably used with a support, e.g. a mass of porous filtering material. A filter cartridge for an I-C engine lubricating oil circulation system may comprise a mass of cotton waste or the like impregnated with pyridine and mildly oxidized castor oil in the proportion of three parts to two by weight. Alternatively the lubricating oil to be purified may be stirred or otherwise brought into contact with a mixture of the engulfant and coagulant, the impurities from the oil being entrapped in the engulfant which may then be filtered to remove the impurities from it. Specification 500,433 is referred to.ALSO:Lubricating oil to be filtered is passed through a mass of porous filtering material impregnated with a coagulant for particles suspended in the oil and with a further substance which provides a substrate or engulfant for the coagulated particles. "Engulfant" denotes a liquid substantially immiscible with the oil to be filtered and providing an interface with the oil through which the coagulated particles pass from the oil to the engulfant much more readily than in the other direction, the impurities to be separated being preferentially wetted by the engulfant as compared with the oil to be filtered. The coagulant is preferably a liquid substantially immiscible with the oil and the engulfant more viscous than the oil. The coagulant may be a nitrogenous base such as aniline, cyclohexylamine, pyridine, dicyclohexylamine, diethylaniline, quinoline, the toluidenes and xylidenes, the hydroxy derivatives of the above compounds and the alkylolamines. Examples of suitable engulfants are the glycols, ethyl cellulose and methyl cellulose (liquid forms, or solid forms in solution), mildly-oxidized castor oil and the fatty acid esters of glycerol substantially immiscible with the oil. Mixtures may be used in each case. A filter cartridge for an I.C. engine lubricating oil circulation system may comprise a mass of cotton waste or the like impregnated with pyridine and mildly-oxidized castor oil in the proportion of three parts to two by weight. Specification 500,433 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1621748A GB665994A (en) | 1948-06-16 | 1948-06-16 | Improvements relating to the separation of solid impurities from fluids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1621748A GB665994A (en) | 1948-06-16 | 1948-06-16 | Improvements relating to the separation of solid impurities from fluids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB665994A true GB665994A (en) | 1952-02-06 |
Family
ID=10073299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1621748A Expired GB665994A (en) | 1948-06-16 | 1948-06-16 | Improvements relating to the separation of solid impurities from fluids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB665994A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2875899A (en) * | 1952-09-25 | 1959-03-03 | Gen Motors Corp | Oil filter coating |
US2943737A (en) * | 1957-07-24 | 1960-07-05 | Gen Motors Corp | Filter and method for purifying oil |
EP0587552A1 (en) * | 1992-08-03 | 1994-03-16 | Loba Feinchemie Aktiengesellschaft | Additive for mineral oils and mineral oil products, especially electrically insulating oils |
-
1948
- 1948-06-16 GB GB1621748A patent/GB665994A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2875899A (en) * | 1952-09-25 | 1959-03-03 | Gen Motors Corp | Oil filter coating |
US2943737A (en) * | 1957-07-24 | 1960-07-05 | Gen Motors Corp | Filter and method for purifying oil |
EP0587552A1 (en) * | 1992-08-03 | 1994-03-16 | Loba Feinchemie Aktiengesellschaft | Additive for mineral oils and mineral oil products, especially electrically insulating oils |
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