Protection of metals in phosphoric acid solutions by corrosion inhibitors. A review

Avdeev, Y.G.

Автор: Avdeev Ya G.
Журнал: International Journal of Corrosion and Scale Inhibition
Том: 8
Номер: 4
Год издания: 2019
Издательство: Некоммерческое партнерство коррозионистов "Вакор"
Местоположение издательства: Москва
Первая страница: 760
Последняя страница: 798
Переводные версии: История развития коррозионных исследований в Институте физической химии РАН. Ч. XIV. Ингибиторы кислотной коррозии
DOI: 10.17675/2305-6894-2019-8-4-1
Аннотация: The article summarizes the literature data and patents on the protection of steels and nonferrous metals in phosphoric acid solutions with various corrosion inhibitors. Some aspects of practical use of H3PO4 solutions, their properties and corrosivity toward various metals are reviewed. It is shown that the overwhelming majority of individual organic and inorganic compounds, as well as composite inhibitors offered for the protection of metals in this medium are of low efficiency due to weak adsorption on metal surfaces. A promising method for the protection of steels in phosphoric acid media involves the use of formulations containing triazole derivatives and sulfur-containing additives. The components of these mixtures form polymolecular protective layers on the metal surface that are highly efficient in slowing down corrosion processes even at temperatures up to 100oС. An important property of these protective layers is a strong chemical bond of the inhibitor molecules with the metal surface and with each other inside the layer. Inhibited H3PO4 solutions resistant to the accumulation of corrosion stimulators – Fe(III) salts – may become a new and promising field of use for this acid. The bibliographic list includes 170 sources.
Добавил в систему: Авдеев Ярослав Геннадиевич

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИПМех РАН

Protection of metals in phosphoric acid solutions by corrosion inhibitors. A reviewстатья

Прикрепленные файлы