US1281354A - Process of treating used lubricants. - Google Patents

Process of treating used lubricants. Download PDF

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Publication number
US1281354A
US1281354A US17057217A US17057217A US1281354A US 1281354 A US1281354 A US 1281354A US 17057217 A US17057217 A US 17057217A US 17057217 A US17057217 A US 17057217A US 1281354 A US1281354 A US 1281354A
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US
United States
Prior art keywords
treating
oil
acid
lubricants
solution
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 - Lifetime
Application number
US17057217A
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English (en)
Inventor
James O Handy
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.)
PITTSBURGH TESTING LABORATORY
PITTSBURGH TESTING LAB
Original Assignee
PITTSBURGH TESTING LAB
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.)
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Publication date
Application filed by PITTSBURGH TESTING LAB filed Critical PITTSBURGH TESTING LAB
Application granted granted Critical
Publication of US1281354A publication Critical patent/US1281354A/en
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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
    • 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
    • C10M175/0008—Working-up used lubricants to recover useful products ; Cleaning with the use of adsorbentia

Definitions

  • Treating Used Lubricants of which the following is a full, clear, and exact description.
  • My 5 invention is designed to provide a cheap, simple and efiective process by which used lubricants, such, for example, as those used in lubricating explosive engines, may be regenerated.
  • oils or lubricants usually containtarry or asphaltic material produced by oxidation during service, and usually unsaturated hydrocarbons formed by exposure to heat and air.
  • v In carrying outmy process, in its preferred form,.'T first dissolve the used oil,
  • a hydrocarbon solvent such as petrolic naphtha or gasolene.
  • the solvent is preferably in large volume proportionate to the amount of oil,- for example, four' times as much gasolene as used 'oil.
  • This mixture is then preferably shaken with bone-black, fullers earth, or similar material, the latter being preferably about one-eighth of the mixture by weight.
  • the sediment or solid impurities contained are then removed by filtering, or equivalent action. Filtering is preferable on account of its cheapness, and this treatment removes t-he tarry 0r asphaltic materials, including.
  • solu- 40 tion is next treated with a two per-cent. solution of caustic soda (sodium hydroxid) to neutralize the acid bodies, The caustic soda is then separated and the oil solution washed with water and then treated with concentrated sulfuric acid.
  • the amount of acid used is preferably about two per cent.
  • hydrocarbon solvent 7 is important since thereby the chemicals usedare prevented from acting so violently, as to destroy or affect the quality of the oil.
  • the recovered oil is substantially equal in quality to-the original oil, and the. amount lost by the refining treatment does not usually exceed ten per cent.
  • the bleaching or decolorizing which is preferably carried-outaby shaking with boneblack, fullersearth, or similar material, and then filtering, may step of the process; and in my claims, which include this bleaching or decolorizing, I do not consider myself limited to the steps in the specific order recited, as the decolorizing may be carried out either as above described or as a final step.
  • lubricants the steps consisting of clarifying the used lubricant, dissolving it ina hydrocarbon solvent, decolorizing the solution by adsorption, treating with an alkali, and treating the solution with acid, substantially as described.

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)
  • Lubricants (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
US17057217A 1918-07-11 1917-05-23 Process of treating used lubricants. Expired - Lifetime US1281354A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11407/18A GB124991A (en) 1918-07-11 1918-07-11 Improved Process of Regenerating Lubricants.

Publications (1)

Publication Number Publication Date
US1281354A true US1281354A (en) 1918-10-15

Family

ID=32344995

Family Applications (1)

Application Number Title Priority Date Filing Date
US17057217A Expired - Lifetime US1281354A (en) 1918-07-11 1917-05-23 Process of treating used lubricants.

Country Status (3)

Country Link
US (1) US1281354A (fr)
FR (1) FR491277A (fr)
GB (1) GB124991A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450603A (en) * 1945-02-03 1948-10-05 Ralph L Faber Method of determining a sludge index for engine oils
US3142636A (en) * 1961-07-13 1964-07-28 Pure Oil Co Guanidine naphthenates and process for making them
US3222275A (en) * 1964-07-13 1965-12-07 Union Oil Co Process for removing naphthenic acids from mineral oils
US3625881A (en) * 1970-08-31 1971-12-07 Berks Associates Inc Crank case oil refining
US4154670A (en) * 1975-11-24 1979-05-15 The Lubrizol Corporation Method of rerefining oil by dilution, clarification and extraction
USRE31267E (en) * 1977-09-01 1983-06-07 Mid-Florida Mining Company Method for the containment of oils and oil sludges
US4834868A (en) * 1988-01-29 1989-05-30 Breslube Usa, Inc. Neutralizing oxidation product components in continuous rerefining of used oil stocks

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450603A (en) * 1945-02-03 1948-10-05 Ralph L Faber Method of determining a sludge index for engine oils
US3142636A (en) * 1961-07-13 1964-07-28 Pure Oil Co Guanidine naphthenates and process for making them
US3222275A (en) * 1964-07-13 1965-12-07 Union Oil Co Process for removing naphthenic acids from mineral oils
US3625881A (en) * 1970-08-31 1971-12-07 Berks Associates Inc Crank case oil refining
US4154670A (en) * 1975-11-24 1979-05-15 The Lubrizol Corporation Method of rerefining oil by dilution, clarification and extraction
USRE31267E (en) * 1977-09-01 1983-06-07 Mid-Florida Mining Company Method for the containment of oils and oil sludges
US4834868A (en) * 1988-01-29 1989-05-30 Breslube Usa, Inc. Neutralizing oxidation product components in continuous rerefining of used oil stocks

Also Published As

Publication number Publication date
FR491277A (fr) 1919-05-28
GB124991A (en) 1919-04-10

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