Corrosion product chemical dissolution process
US8591663B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2009 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Apr 15, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21C19/37
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for removing corrosion products from a system, the method including: adjusting the system temperature to between 115° F. to 212° F.; injecting a cleaning dissolution solvent into the system; injecting a gas into the system after the system is filled with the cleaning dissolution solvent; the gas mixing with the solvent in the system; draining the solvent from the system after a predetermined period of time of dissolution; injecting a passivation composition into the system; injecting a gas into the system, the gas mixing the passivation composition; draining the system of the composition after a predetermined period of time of passivation; rinsing the system with a low volume solution; and rinsing the system at with a full volume solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.