| 20110259476 | METHODS FOR CORROSION CONTROL OF STEEL IN AQUEOUS ENVIRONMENT USING PASSIVE IRON-SULPHUR LAYERS - A method is taught for protecting steel parts from corrosion due to exposure to a corrosive aqueous environment. The method comprises adding a first quantity of organic sulphur salts to the corrosive aqueous environment, wherein the first quantity of organic sulphur salts react with iron, formed from corrosion of the steel parts, to form a passive iron-sulphur barrier. A second quantity of organic sulphur salts is added to the aqueous medium over the life of the steel parts to maintain a predetermined sulphur concentration in the corrosive aqueous environment to maintain the passive barrier. Also taught is the use of organic sulphur salts in protecting steel parts from corrosion due to exposure to a corrosive aqueous environment. | 10-27-2011 |
