Mill scale de-oiling

Details Mill scale de-oiling Mill scale de-oiling

1990-01-29

1991-02-26

Andrews, Melvyn J.

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 26, 134 40, 75962, C22B 700

Patent

active

049959123

ABSTRACT:
A particular scrubbing agent/detergent formulation useful in removing contaminated oils and oily components from mill scale generated in a steel mill as disclosed. The formulation is based around medium aliphatic and heavy aromatic naphthas, linear and/or branched alkyl phenols, alkoxylated alkyl phenols, pentaethylene hexamine partial fatty acid amides, and alkyl and/or aromatic acid imidazolines. Optionally, fatty alcohol sulfonates can be used to protect the de-oiled mill scale surfaces from reabsorption of contaminating oily components.

REFERENCES:
Physical Chemistry of Extractive Metallurgy Proc. Int'l. Symp., pp. 479-493, 1985.

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