In
metallurgy, the Bower–Barff process is a method of coating iron or steel with magnetic
iron oxide, such as Fe
2O
4, in order to minimize atmospheric
corrosion
Corrosion is a natural process that converts a refined metal into a more chemically stable oxide. It is the gradual deterioration of materials (usually a metal) by chemical or electrochemical reaction with their environment. Corrosion engi ...
.
The articles to be treated are put into a closed
retort
In a chemistry laboratory, a retort is a device used for distillation or dry distillation of substances. It consists of a spherical vessel with a long downward-pointing neck. The liquid to be distilled is placed in the vessel and heated. The ...
and a current of
superheated steam passed through for twenty minutes followed by a current of producer gas (
carbon monoxide
Carbon monoxide (chemical formula CO) is a colorless, poisonous, odorless, tasteless, flammable gas that is slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simple ...
), to reduce any higher oxides that may have been formed.
References
ebook of creative chemistry page 273.
Metallurgical processes
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