RT info:eu-repo/semantics/doctoralThesis
T1 Síntesis y aplicación de compuestos con potencial efecto inhibidor en la corrosión de acero
A1 Cherubin, Alberto
A2 Universidad de Valladolid. Escuela de Doctorado
K1 Corrosion
K1 Corrosión
K1 Molasses
K1 Melaza
K1 Dendrimer
K1 Dendrímeros
K1 Brine
K1 Salmuera
K1 Corrosion
K1 23 Química
AB The waste formed during sugar- and wine-making activities has attracted our attention given itsability to inhibit corrosion in the presence of brine in a de-icing formulation. Herein the additionof amines to de-sugared beet molasses and winery lees is found to improve their anti-corrosiveproperties. Thus, weight-loss experiments clearly show that the addition of a small amount ofamines to molasses or lees results in marked corrosion inhibition on carbon and galvanized steel.Subsequent electrochemical experiments and microscopy studies supported this finding. Inaddition, microscopy images indicated that triethanolamine was the best candidate amongst theamines tested for use in the final de-icing formulation. Ice-melting experiments demonstrated thatthe presence of molasses/lees together with triethanolamine does not alter the properties of thede-icing agent. When corrosion on galvanized and carbon steel probes was measured underenvironmental conditions, a decrease of 88% for galvanized steel and 65% for carbon steel wasachieved due to the inhibiting action of the molasses/triethanolamine mixture. These resultssuggest that the addition of molasses/lees and triethanolamine to brine-based de-icing agents isrecommended.
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/70107
UL https://uvadoc.uva.es/handle/10324/70107
LA spa
NO Escuela de Doctorado
DS UVaDOC
RD 24-nov-2024