Patent ID: 9175405
Filing Date: 2015-11-03
Classification: B05D,C09D,C23F

Abstract:
1. A method of mitigating corrosion of a conduit containing an aqueous medium comprising: (a) providing a metal conduit; (b) introducing an aqueous medium into said metal conduit; (c) injecting a mixture comprising an effective amount of one or more transition metals, one or more organic phosphates, and one or more inorganic phosphates into said aqueous medium; (d) injecting an effective amount of hydroxyphosphono acetic acid and/or salts thereof into said aqueous medium, (e) treating said metal conduit with an effective amount of a mixture comprising one or more transition metals, one or more organic phosphates, and one or more inorganic phosphates before step (b); and (f) treating said metal conduit with an effective amount of hydroxyphosphono acetic acid and/or salts thereof before step (b).