Pregled bibliografske jedinice broj: 40069
Effect of Flow on Corrosion Inhibition of Copper in Acid Media
Effect of Flow on Corrosion Inhibition of Copper in Acid Media // Proceedings of the 9th European Symposium on Corrosion Inhibitors / Zucchi, F. ; Trabanelli, G. (ur.).
Ferrara: University of Ferrara, 2000. str. 567-578 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 40069 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Effect of Flow on Corrosion Inhibition of Copper in Acid Media
Autori
Stupnišek- Lisac, Ema ; Živković, Silvana ; Gašparac, Rahela
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the 9th European Symposium on Corrosion Inhibitors
/ Zucchi, F. ; Trabanelli, G. - Ferrara : University of Ferrara, 2000, 567-578
Skup
9th European Symposium on Corrosion Inhibitors
Mjesto i datum
Ferrara, Italija, 04.09.2000. - 08.09.2000
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
copper; hydrochloric acid; imidazoles; corrosion; inhibition; flow regime
Sažetak
The aim of this work is to study the influence of flow velocity and temperature on corrosion and protection of copper in hydrochloric acid. The efficiency of imidazole derivatives (4-methylimidazole and 1-phenyl-4-methylimidazole) as copper corrosion inhibitors in flow conditions has been investigated. Electrochemical measurements were performed in flow-through electrochemical cell at different flow rates (v1=0.005 ms-1, v2=0.009 ms-1, v3=0.014 ms-1) and temperatures (25a C, 35a C, 35a C). Reynolds numbers calculated show that all experiments were performed under conditions of laminar flow (Re < 2320). Corrosion rate (corrosion current density) was determined by Tafel extrapolation methods and by polarization resistance measurements (Ą§linearĄ¨polarization). The results of the investigation have shown that the increase of flow velocity and temperature influence on growth of copper corrosion in uninhibited hydrochloric acid. The addition of imidazole derivatives decreases copper corrosion at all flow rates and temperatures. The influence of the flow rate on copper corrosion in inhibited solution of hydrochloric acid is small. The influence of the temperature is smaller in the solution of HCl with the addition of 1-phenyl-4-methylimidazole that has better protection degree of copper than 4-methylimidazole.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo
