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Sulfides. their effect on coatings and substrates

Journal Article · · Mater. Performance; (United States)
OSTI ID:5797556
A discussion of sulfides includes: their effect on coatings and substrates, and particularly the role of hydrogen sulfide, covers the latter's direct reduction with iron and iron compounds to form ferrous sulfide, whose reactions with oxygen gas in the presence of water contribute to corrosion occurring in petroleum handling, storage, and transport by tanker; the role of sulfate-reducing bacteria in iron corrosion; the importance of thorough cleaning of sulfide-reacted steel and of reblasting to white or near-white metal before applying organic coatings; the variable success obtained with organic coatings such as PVC's and epoxies in protecting petroleum industry equipment; and the successful use of coal tar epoxies in protecting storage and shipping tanks for sour crudes; and recommends the use of an inorganic zinc base coat followed by a compatible primer and a high-performance topcoat, such as a coal tar epoxy, to protect crude tanker tanks and marine structures. Diagram.
Research Organization:
Ameron Inc.
OSTI ID:
5797556
Journal Information:
Mater. Performance; (United States), Journal Name: Mater. Performance; (United States) Vol. 17:1; ISSN MTPFB
Country of Publication:
United States
Language:
English