| abstract |
They were synthesized N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl amino or imino propionic acids with an alkyl chain ranging from 6 to 18 carbons, or alkenyl chain from 8 to 30 carbons, from reaction in absence of solvent in a temperature range from 30 to 180 °C and a time of 1 to 10 hours at atmospheric pressure. Formulations composed of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl amino or imino propionic acids, polyethers derived from propylene oxide or ethylene oxide or copolymer thereof and a solvent consisting of aromatic compounds such as toluene or xylene, diesel or gasoline or alcohols such as isopropanol and ethanol, or mixtures thereof, which inhibit ferrous metal corrosion of pipelines and storage tanks and transport crude oil and liquid fuels. |