Rerefining used lubricating oil with hydride reducing agents

Details Rerefining used lubricating oil with hydride reducing agents Rerefining used lubricating oil with hydride reducing agents

C - Chemistry, Metallurgy

10

M

196/202

C10M 175/02 (2006.01) C10M 175/00 (2006.01)

Patent

CA 1188248

ABSTRACT Used lubricating oil is rerefined utilizing hydride reducing agents. The hydride reducing agent contacts the used oil in an aqueous solu- tion, for example. Contact with the hydride re- ducing agent may occur before, during or after distillation or evaporation of the used lubricat- ing oil. The disclosed method reduces the con- centration of carbonyl compounds and metals and reduces the corrosion characteristics of used lubricating oil.

408319

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