FR2259895A1 - Regeneration of used lubricating oils - by successive treatment with water, sulphuric acid and activated earth - Google Patents

Regeneration of used lubricating oils - by successive treatment with water, sulphuric acid and activated earth

Info

Publication number
FR2259895A1
FR2259895A1 FR7403568A FR7403568A FR2259895A1 FR 2259895 A1 FR2259895 A1 FR 2259895A1 FR 7403568 A FR7403568 A FR 7403568A FR 7403568 A FR7403568 A FR 7403568A FR 2259895 A1 FR2259895 A1 FR 2259895A1
Authority
FR
France
Prior art keywords
treatment
degrees
regeneration
used lubricating
water
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.)
Granted
Application number
FR7403568A
Other languages
French (fr)
Other versions
FR2259895B1 (en
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7403568A priority Critical patent/FR2259895A1/en
Publication of FR2259895A1 publication Critical patent/FR2259895A1/en
Application granted granted Critical
Publication of FR2259895B1 publication Critical patent/FR2259895B1/fr
Granted legal-status Critical Current

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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

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)

Abstract

Used lubricating oil is regenerated by treatment with (a) H2O at 200-500 degrees C; (b) H2O4; and (c) an activated earth. The H2O treatment in step (a) reduces the amt. of H2SO4 required in step (b) and also increases the oil recovery yield. Step (a) can be effected by (i) passing an oi-H2O mixt. through a tubular furnace at 300-500 degrees C with a contact time of 1-60 sec, or (ii) introducing steam into a heated vessel contg. the oil at 220-425 degrees C for 15-120 min. The prefd. treatment temp. is 220-425 degrees C, and the vol. ratio of H2O (as liq.) to oil is pref. 0.001-1:1. The treatment can also be affected in the presence of an alkali (ne earth) metal oxide, hydroxide or carbonate (esp. lime).
FR7403568A 1974-01-31 1974-01-31 Regeneration of used lubricating oils - by successive treatment with water, sulphuric acid and activated earth Granted FR2259895A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7403568A FR2259895A1 (en) 1974-01-31 1974-01-31 Regeneration of used lubricating oils - by successive treatment with water, sulphuric acid and activated earth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7403568A FR2259895A1 (en) 1974-01-31 1974-01-31 Regeneration of used lubricating oils - by successive treatment with water, sulphuric acid and activated earth

Publications (2)

Publication Number Publication Date
FR2259895A1 true FR2259895A1 (en) 1975-08-29
FR2259895B1 FR2259895B1 (en) 1978-03-10

Family

ID=9134403

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7403568A Granted FR2259895A1 (en) 1974-01-31 1974-01-31 Regeneration of used lubricating oils - by successive treatment with water, sulphuric acid and activated earth

Country Status (1)

Country Link
FR (1) FR2259895A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252637A (en) * 1978-04-27 1981-02-24 Deutsche Gold Und Silber-Scheideanstalt Vormals Roessler Process for the reprocessing of used lubricating oils (II)
DE3514970A1 (en) * 1985-04-25 1986-10-30 Dr. Baer Verfahrenstechnik GmbH, 6230 Frankfurt Process for removing metal from metal-containing greases
EP0668340A1 (en) * 1994-02-21 1995-08-23 Benjamin Sy Santos An improved process for removing heavy metals, sulfur and chlorinated compounds from used oil to generate clear fuel oils or lube stock and soft and/or hard asphalt with no acid sludge problem

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252637A (en) * 1978-04-27 1981-02-24 Deutsche Gold Und Silber-Scheideanstalt Vormals Roessler Process for the reprocessing of used lubricating oils (II)
DE3514970A1 (en) * 1985-04-25 1986-10-30 Dr. Baer Verfahrenstechnik GmbH, 6230 Frankfurt Process for removing metal from metal-containing greases
EP0668340A1 (en) * 1994-02-21 1995-08-23 Benjamin Sy Santos An improved process for removing heavy metals, sulfur and chlorinated compounds from used oil to generate clear fuel oils or lube stock and soft and/or hard asphalt with no acid sludge problem

Also Published As

Publication number Publication date
FR2259895B1 (en) 1978-03-10

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Legal Events

Date Code Title Description
ST Notification of lapse