Paper
23 February 2000 Modern procedures for chemical cleaning of corroded carbon steel equipment
Ileana-Hania Plonski, Stefania-Floriana Spiridon, Maria Robu, Carmen Doman, Mariana Tudorache, Mihaela Bobu, Emilian Mateescu, Frank Schneider
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Proceedings Volume 4068, SIOEL '99: Sixth Symposium on Optoelectronics; (2000) https://doi.org/10.1117/12.378719
Event: SIOEL: Sixth Symposium of Optoelectronics, 1999, Bucharest, Romania
Abstract
Modern procedures have been elaborated taking into account the laboratory findings and developments of the past two decades concerning the factors increasing the solubility of iron oxides in the cleaning agent and conditioning improving the characteristics of the protective layer, both having in mind the present state of corrosion in romanian power energetic plants. The basic reagent formulae consists in citric acid, hydro-chloric acid, ferrous sulfate as dissolution activator and a corrosion inhibitor, operating at T 80-85 degrees C. The removal of thick corrosion deposits is achieved in a basic step-by-step procedure, the number of steps depending on the layer thickness and on the degree of damage of the underlying base metal. After chemical cleaning, a passive magnetic film will be formed under special conditioning of water with long-chained amines.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ileana-Hania Plonski, Stefania-Floriana Spiridon, Maria Robu, Carmen Doman, Mariana Tudorache, Mihaela Bobu, Emilian Mateescu, and Frank Schneider "Modern procedures for chemical cleaning of corroded carbon steel equipment", Proc. SPIE 4068, SIOEL '99: Sixth Symposium on Optoelectronics, (23 February 2000); https://doi.org/10.1117/12.378719
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