GB1445498A - Method of purifying lubricating oils - Google Patents
Method of purifying lubricating oilsInfo
- Publication number
- GB1445498A GB1445498A GB3296974A GB3296974A GB1445498A GB 1445498 A GB1445498 A GB 1445498A GB 3296974 A GB3296974 A GB 3296974A GB 3296974 A GB3296974 A GB 3296974A GB 1445498 A GB1445498 A GB 1445498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alcohol
- oils
- acid
- treated
- lubricating oils
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Lubricants (AREA)
Abstract
1445498 Recovering used lubricating oils M FAINMAN and C S MCAULEY 25 July 1974 [30 July 1973] 32969/74 Heading C5E Used lubricating oils are treated by diluting with a hydrocarbon liquid diluent, mixing the diluted oil with a mixture of water and an alcohol, (which alcohol has a water solubility of at least 20% by volume) containing an amount of an acid sufficient to displace polyvalent metal ions from metallic soaps in the oil, and centrifuging the mixture to separate the diluted oil phase from the alcohol-water phase and sludge. In examples used automobile crankcase oils are treated using naphtha, kerosene, xylene or dehydrated overhead from the oils, as diluents; ethanol, isopropanol or tert-butanol as the alcohol; and hydrochloric, sulphuric, nitric, phosphoric, formic or acetic acids as the acid. The process can be used to treat used oils which have been previously treated by the process of Specification 1,445,264 which is similar to that of the present invention except that an ammonium or alkali metal base is used instead of acid.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00383706A US3835035A (en) | 1973-07-30 | 1973-07-30 | Method of purifying lubricating oils |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1445498A true GB1445498A (en) | 1976-08-11 |
Family
ID=23514335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3296974A Expired GB1445498A (en) | 1973-07-30 | 1974-07-25 | Method of purifying lubricating oils |
Country Status (6)
Country | Link |
---|---|
US (1) | US3835035A (en) |
JP (1) | JPS5422449B2 (en) |
CA (1) | CA1036091A (en) |
DE (1) | DE2436309C3 (en) |
FR (1) | FR2239520B1 (en) |
GB (1) | GB1445498A (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4028226A (en) * | 1975-11-12 | 1977-06-07 | The Lubrizol Corporation | Method of rerefining oil with recovery of useful organic additives |
US4154670A (en) * | 1975-11-24 | 1979-05-15 | The Lubrizol Corporation | Method of rerefining oil by dilution, clarification and extraction |
US4073720A (en) * | 1976-10-22 | 1978-02-14 | The United States Of America As Represented By The United States Department Of Energy | Method for reclaiming waste lubricating oils |
US4105542A (en) * | 1976-12-30 | 1978-08-08 | Morton Fainman | Method for removing sludge from oil |
US4305813A (en) * | 1978-07-10 | 1981-12-15 | Biuro Projektow I Realizacji Inwestycji Rafinerii Nafty "Bipronaft" | Method of extractive purification of residues from crude oil refining and heavy ends thereof |
US4286971A (en) * | 1979-10-05 | 1981-09-01 | Bethlehem Steel Corporation | Removal of naphthalene from recirculated wash oil |
JPS56136891A (en) * | 1980-03-31 | 1981-10-26 | Kanagawaken | Preparation of lubricating oil |
US4491515A (en) * | 1981-03-23 | 1985-01-01 | Monash University | Treating used automotive lubricating oil to reduce the content of suspended particulate matter, including lead |
US4432865A (en) * | 1982-01-25 | 1984-02-21 | Norman George R | Process for treating used motor oil and synthetic crude oil |
US4431524A (en) * | 1983-01-26 | 1984-02-14 | Norman George R | Process for treating used industrial oil |
DE3314859A1 (en) * | 1983-04-23 | 1984-10-25 | Westfalia Separator Ag, 4740 Oelde | METHOD AND DEVICE FOR CENTRIFUGAL CLEANING OF USED MINERAL OILS |
DE3421966A1 (en) * | 1984-06-13 | 1985-12-19 | Erwin Herber | Process and apparatus for processing acid sludges or the like |
DE3523907A1 (en) * | 1985-07-04 | 1987-01-15 | Westfalia Separator Ag | METHOD AND DEVICE FOR CENTRIFUGAL CLEANING OF USED MINERAL OILS |
US4834868A (en) * | 1988-01-29 | 1989-05-30 | Breslube Usa, Inc. | Neutralizing oxidation product components in continuous rerefining of used oil stocks |
US5678833A (en) * | 1995-06-07 | 1997-10-21 | Rollerblade, Inc. | Adjustable fit in-line skate |
WO1998010045A1 (en) * | 1996-09-09 | 1998-03-12 | Destiny Oil Anstalt | Method of refining waste oils (petroleum products) |
US6059976A (en) * | 1997-08-28 | 2000-05-09 | Kaiser Aluminum & Chemical Corporation | Reclamation of spent aluminum rolling coolant oils, emulsions and dispersions |
WO2003022961A1 (en) * | 2001-09-09 | 2003-03-20 | Bio-Clean Fuels, Inc. | Method and apparatus for making biodiesel fuel |
US8197667B2 (en) * | 2008-03-04 | 2012-06-12 | Scomi Ecosolve, Limited | Method to recover crude oil from sludge or emulsion |
-
1973
- 1973-07-30 US US00383706A patent/US3835035A/en not_active Expired - Lifetime
-
1974
- 1974-07-23 CA CA205,496A patent/CA1036091A/en not_active Expired
- 1974-07-25 GB GB3296974A patent/GB1445498A/en not_active Expired
- 1974-07-27 DE DE2436309A patent/DE2436309C3/en not_active Expired
- 1974-07-29 FR FR7426270A patent/FR2239520B1/fr not_active Expired
- 1974-07-30 JP JP8741674A patent/JPS5422449B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3835035A (en) | 1974-09-10 |
FR2239520A1 (en) | 1975-02-28 |
DE2436309C3 (en) | 1979-04-12 |
JPS5422449B2 (en) | 1979-08-07 |
DE2436309B2 (en) | 1978-08-03 |
CA1036091A (en) | 1978-08-08 |
FR2239520B1 (en) | 1977-03-18 |
JPS5070406A (en) | 1975-06-11 |
DE2436309A1 (en) | 1975-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |