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Title: Method for reclaiming waste lubricating oils

Abstract

A method for purifying and reclaiming used lubricating oils containing additives such as detergents, antioxidants, corrosion inhibitors, extreme pressure agents and the like and other solid and liquid contaminants by preferably first vacuum distilling the used oil to remove water and low-boiling contaminants, and treating the dried oil with a solvent mixture of butanol, isopropanol and methylethyl ketone which causes the separation of a layer of sludge containing contaminants, unspent additives and oxidation products. After solvent recovery, the desludged oil is then subjected to conventional lubricating oil refining steps such as distillation followed by decolorization and deodorization.

Inventors:
 [1];  [1];  [1]
  1. Bartlesville, OK
Issue Date:
Research Org.:
BETC/ERDA
OSTI Identifier:
863013
Patent Number(s):
4073720
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10M - LUBRICATING COMPOSITIONS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; reclaiming; waste; lubricating; oils; purifying; containing; additives; detergents; antioxidants; corrosion; inhibitors; extreme; pressure; agents; solid; liquid; contaminants; preferably; vacuum; distilling; oil; remove; water; low-boiling; treating; dried; solvent; mixture; butanol; isopropanol; methylethyl; ketone; causes; separation; layer; sludge; unspent; oxidation; products; recovery; desludged; subjected; conventional; refining; steps; distillation; followed; decolorization; deodorization; oxidation products; remove water; lubricating oil; solvent mixture; waste lubricating; oxidation product; oils containing; oil refining; extreme pressure; lubricating oils; liquid contaminants; corrosion inhibitors; move water; /208/

Citation Formats

Whisman, Marvin L, Goetzinger, John W, and Cotton, Faye O. Method for reclaiming waste lubricating oils. United States: N. p., 1978. Web.
Whisman, Marvin L, Goetzinger, John W, & Cotton, Faye O. Method for reclaiming waste lubricating oils. United States.
Whisman, Marvin L, Goetzinger, John W, and Cotton, Faye O. Sun . "Method for reclaiming waste lubricating oils". United States. https://www.osti.gov/servlets/purl/863013.
@article{osti_863013,
title = {Method for reclaiming waste lubricating oils},
author = {Whisman, Marvin L and Goetzinger, John W and Cotton, Faye O},
abstractNote = {A method for purifying and reclaiming used lubricating oils containing additives such as detergents, antioxidants, corrosion inhibitors, extreme pressure agents and the like and other solid and liquid contaminants by preferably first vacuum distilling the used oil to remove water and low-boiling contaminants, and treating the dried oil with a solvent mixture of butanol, isopropanol and methylethyl ketone which causes the separation of a layer of sludge containing contaminants, unspent additives and oxidation products. After solvent recovery, the desludged oil is then subjected to conventional lubricating oil refining steps such as distillation followed by decolorization and deodorization.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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