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US 5,332,510 AGranted
Process for cleaning rolling oils
AssigneeAlusuisse-Lonza Services Ltd.
InventorsRudolf Baur, Hanspeter Krahenbuhl, Urs Giger, Emil Merki
Life of this patent
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Abstract
Process for cleaning rolling oils which, when contaminated, contain rolling fines originating from metals being processed into semi-finished products in strip form, in particular light weight metals, e.g. aluminum fines. An addition of 2 to 8 g of dimeric oleic acid is made to each 1000 g of contaminated oil and the mixture passed through a coagulator whereby the rolling fines coagulate and can be readily removed from the contaminated oil. The purified oil can be recirculated as rolling oil.
Claims8
Process for cleaning rolling oils which comprises:
- providing rolling oil contaminated with aluminum rolling fines originating from aluminum metals;
- adding from 2 to 8 g of dimeric oleic acid to each 1000 g of contaminated oil to form a mixture;
- and coagulating the mixture.
Dependencies are inferred from the claim text.