HIGH EFFICIENT INHIBITORS FOR STEEL IN VAPOR-LIQUID PHASES

A kind of morpholine derivative was synthesized by morpholine,trioxane and dibutylamines,and a thiazole derivative was synthesized by morpholine,ammonia and sulfur.The corrosion inhibition efficiency of the two derivatives and their mixtures with other corrosion inhibitors were studied by static weightloss measurement.Results show that the mixture of morpholine derivative with imidazoline derivative,thiocarbamide and propiolic alcohol has a good inhibitive efficiency for CO 2 induced corrosion.But thiazole derivative has a good inhibitive efficiency for CO 2 induced corrosion when used individually,and among the common used inhibitors only propiolic has synergism effect with thiazole derivative.The two corrosion inhibitors are both high efficient inhibitors for CO 2 induced corrosion in vapor-liquid phases.