Recovery of lubricants from used cooling lubricants

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United States of America Patent

PATENT NO 8642518
APP PUB NO 20110230377A1
SERIAL NO

13131352

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Abstract

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In a method for recovering lubricant or lubricant concentrate from a used mixture containing lubricant, the mixture containing lubricant and which is substantially dewatered is subjected to short path distillation at a temperature of at least 150° C. and a pressure of less than 1.5 mbar, in order to obtain a lubricant concentrate which can be recycled into cooling lubricants and which is free of very finely wear debris, metal soaps and polymers.

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Patent Owner(s)

Patent OwnerAddress
HYDRO ALUMINUM ROLLED PRODUCTS GMBHALUMINIUMSTR 1 GREVENBROICH 41515

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kudermann, Gerhard Alfter, DE 5 50
Seiferth, Oliver Köln-Zündorf, DE 4 2

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