GB1445498A - Method of purifying lubricating oils - Google Patents

Method of purifying lubricating oils

Info

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
Application number
GB3296974A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1445498A publication Critical patent/GB1445498A/en
Expired legal-status Critical Current

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.
GB3296974A 1973-07-30 1974-07-25 Method of purifying lubricating oils Expired GB1445498A (en)

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)

* Cited by examiner, † Cited by third party
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

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