An overview of chemical cleaning to date: scale removal methods and equipment

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Since 1750 when Rinman, in Sweden, first proposed “soaking steel for one or two months in pyroligneous acid” to remove scale, we have progressed through hydrochloric, sulphuric, mixed acids, molten salts and electrolytic methods to our present procedures of scale removal. This paper will review the past and present state of the art, available equipment and some of the methods of removal or recycling of the effluents.

Description

Since 1750 when Rinman, in Sweden, first proposed “soaking steel for one or two months in pyroligneous acid” to remove scale, we have progressed through hydrochloric, sulphuric, mixed acids, molten salts and electrolytic methods to our present procedures of scale removal. This paper will review the past and present state of the art, available equipment and some of the methods of removal or recycling of the effluents.

Additional information

Author(s)

Allan B. Dove, Consultant, Canada

Publication/Event/Pages

Paper presented at WAI Ferrous Div. Mtg., Colorado Springs, CO USA

Year

1977