Abstract
This work describes the assays aimed to passivate the steel carbon of the process pipings. This steel is marked by the ASTM A 333 G6 and is chemically similar to those of isotopic exchange towers which corrode in contact with in-water hydrogen sulfide solutions forming iron sulfide protective layers. The differences between both materials lie in the surface characteristics to be passivated. The steel of towers has an internal side covered by paint which shall be removed prior to passivation. The steel`s internal side shall be covered by a film formed during the fabrication process and constituted by calcinated wastes and iron oxides (magnetite, hematite and wustite). This film interferes in the formation process of passivating layers of pyrrhotite and pyrite. The possibility to passivate the pipes in their actual state was evaluated since it would result highly laborious and expensive to eliminate the film. (Author). [Espanol] En este trabajo se describen los ensayos tendientes a pasivar el acero al carbono de las canerias de proceso. Este acero esta caracterizado por la norma ASTM A 333 G6 y es quimicamente similar al de las torres de intercambio isotopico que fue estudiado en trabajos anteriores y por lo tanto se corroe
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Citation Formats
Burkart, A L.
Carbon steel protection in G.S. (Girlder sulfide) plants. Iron sulfide scales formation on surfaces covered by fabrication produced films. Pt. 4; Proteccion de acero al carbono en plantas G.S. (Girlder sulfide). Formacion de la capa protectora de sulfuros de hierro sobre superficies cubiertas de cascarilla de fabricacion. Pte. 4.
Argentina: N. p.,
1986.
Web.
Burkart, A L.
Carbon steel protection in G.S. (Girlder sulfide) plants. Iron sulfide scales formation on surfaces covered by fabrication produced films. Pt. 4; Proteccion de acero al carbono en plantas G.S. (Girlder sulfide). Formacion de la capa protectora de sulfuros de hierro sobre superficies cubiertas de cascarilla de fabricacion. Pte. 4.
Argentina.
Burkart, A L.
1986.
"Carbon steel protection in G.S. (Girlder sulfide) plants. Iron sulfide scales formation on surfaces covered by fabrication produced films. Pt. 4; Proteccion de acero al carbono en plantas G.S. (Girlder sulfide). Formacion de la capa protectora de sulfuros de hierro sobre superficies cubiertas de cascarilla de fabricacion. Pte. 4."
Argentina.
@misc{etde_10157654,
title = {Carbon steel protection in G.S. (Girlder sulfide) plants. Iron sulfide scales formation on surfaces covered by fabrication produced films. Pt. 4; Proteccion de acero al carbono en plantas G.S. (Girlder sulfide). Formacion de la capa protectora de sulfuros de hierro sobre superficies cubiertas de cascarilla de fabricacion. Pte. 4}
author = {Burkart, A L}
abstractNote = {This work describes the assays aimed to passivate the steel carbon of the process pipings. This steel is marked by the ASTM A 333 G6 and is chemically similar to those of isotopic exchange towers which corrode in contact with in-water hydrogen sulfide solutions forming iron sulfide protective layers. The differences between both materials lie in the surface characteristics to be passivated. The steel of towers has an internal side covered by paint which shall be removed prior to passivation. The steel`s internal side shall be covered by a film formed during the fabrication process and constituted by calcinated wastes and iron oxides (magnetite, hematite and wustite). This film interferes in the formation process of passivating layers of pyrrhotite and pyrite. The possibility to passivate the pipes in their actual state was evaluated since it would result highly laborious and expensive to eliminate the film. (Author). [Espanol] En este trabajo se describen los ensayos tendientes a pasivar el acero al carbono de las canerias de proceso. Este acero esta caracterizado por la norma ASTM A 333 G6 y es quimicamente similar al de las torres de intercambio isotopico que fue estudiado en trabajos anteriores y por lo tanto se corroe en contacto con solucion de sulfuro de hidrogeno en agua formando peliculas protectoras de sulfuro de hierro. La diferencia entre ambos materiales reside en las caracteristicas de la superficie a pasivar. El acero de torres tiene su cara interna cubierta de pintura que debera ser removida previo a la pasivacion. En el caso de los canos de proceso el acero esta cubierto en su lado interno por una cascarilla formada durante el proceso de fabricacion y constituida de residuos calcinados y oxidos de hierro (magnetita, hematita y w stita). Esta pelicula interfiere el proceso de formacion de la capa pasivante de pirrotita y pirita. Dado que resultaria sumamente dificultoso y costoso eliminar dicha cascarilla, se evaluo la posibilidad de pasivar los canos tal cual estan. (Autor).}
place = {Argentina}
year = {1986}
month = {Apr}
}
title = {Carbon steel protection in G.S. (Girlder sulfide) plants. Iron sulfide scales formation on surfaces covered by fabrication produced films. Pt. 4; Proteccion de acero al carbono en plantas G.S. (Girlder sulfide). Formacion de la capa protectora de sulfuros de hierro sobre superficies cubiertas de cascarilla de fabricacion. Pte. 4}
author = {Burkart, A L}
abstractNote = {This work describes the assays aimed to passivate the steel carbon of the process pipings. This steel is marked by the ASTM A 333 G6 and is chemically similar to those of isotopic exchange towers which corrode in contact with in-water hydrogen sulfide solutions forming iron sulfide protective layers. The differences between both materials lie in the surface characteristics to be passivated. The steel of towers has an internal side covered by paint which shall be removed prior to passivation. The steel`s internal side shall be covered by a film formed during the fabrication process and constituted by calcinated wastes and iron oxides (magnetite, hematite and wustite). This film interferes in the formation process of passivating layers of pyrrhotite and pyrite. The possibility to passivate the pipes in their actual state was evaluated since it would result highly laborious and expensive to eliminate the film. (Author). [Espanol] En este trabajo se describen los ensayos tendientes a pasivar el acero al carbono de las canerias de proceso. Este acero esta caracterizado por la norma ASTM A 333 G6 y es quimicamente similar al de las torres de intercambio isotopico que fue estudiado en trabajos anteriores y por lo tanto se corroe en contacto con solucion de sulfuro de hidrogeno en agua formando peliculas protectoras de sulfuro de hierro. La diferencia entre ambos materiales reside en las caracteristicas de la superficie a pasivar. El acero de torres tiene su cara interna cubierta de pintura que debera ser removida previo a la pasivacion. En el caso de los canos de proceso el acero esta cubierto en su lado interno por una cascarilla formada durante el proceso de fabricacion y constituida de residuos calcinados y oxidos de hierro (magnetita, hematita y w stita). Esta pelicula interfiere el proceso de formacion de la capa pasivante de pirrotita y pirita. Dado que resultaria sumamente dificultoso y costoso eliminar dicha cascarilla, se evaluo la posibilidad de pasivar los canos tal cual estan. (Autor).}
place = {Argentina}
year = {1986}
month = {Apr}
}