Abstract
Abstract Describes serious pitting corrosion attack in autoclaves at plant where uranium ore is treated by leaching with sodium carbonate-bicarbonate solution. Serious pitting began after plant was on-stream for only six months. Attack was on mild steel vessels above liquid level. Crash repair and corrosion protection program was begun while investigation was underway. Inconel strips were welded to froth line levels where pitting had occurred, but these patches also corroded. Coatings also were used in crash repair program: baked phenolics, epoxy-phenolic combinations, epoxies and vinyls. None of organic coatings tested was completely resistant to attack in vapor and liquid phase or pulp cones of vessels. Stainless steel belts then were welded to autoclave shells where pitting had occurred. Later, more rapid corrosion rates were encountered, no longer confined to froth line of the autoclaves. Corrosion spread to classifier shafts in the grinding area, pitting of filter drums and even affected clarifier fr...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
