【発明の名称】使用済潤滑油の再生方法

Title:

【発明の名称】使用済潤滑油の再生方法

Document Type and Number:

Japanese Patent JPS584759

Kind Code:

B2

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.

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Inventors:

MAABIN RESURII WAISUMAN
JON UEIN GETSUCHINGAA
FUEI OREI KOTSUTON

Application Number:

JP12669677A

Publication Date:

January 27, 1983

Filing Date:

October 21, 1977

Export Citation:

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Assignee:

UNITED STATES ENERGY RESEARCH

International Classes:

C10G21/16; C10G53/04; C10M175/00; (IPC1-7): C10G53/04; C10G21/16

Attorney, Agent or Firm:

Yukio Ogata

Next Patent: PRESS MOLDING MACHINE AND METHOD