Method of removing iron oxide deposits from the surface of...

Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...

Reexamination Certificate

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C134S002000, C134S022100, C134S026000, C134S028000, C134S030000, C134S034000, C134S035000, C134S036000, C134S041000, C134S042000

Reexamination Certificate

active

07005011

ABSTRACT:
Disclosed is a method and solvent composition capable of removing iron oxide deposits from the surface of titanium components without substantially damaging the underlying titanium component. Iron oxide deposits may be removed from the surface of a titanium component by contacting the titanium component with the solvent composition of the invention. The solvent composition may then be removed from contact with the titanium component to obtain a recyclable solvent composition which is recycled into repeated contact with the titanium component. The solvent composition comprises an aqueous mixture of an organic acid and a hydrohalide acid.

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Publication, Centerline, vol. 5, No. 2, Summer 2001, pp. 6-8, 15-18, Mary Kay O'Connor Process Safety Cent.

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