Methods and compositions for removing metal oxides

A method for removing a titanium dioxide soil from a surface where the titanium dioxide soil is from a titanium dioxide additive, the method comprising:

• a) applying a first use composition comprising a surfactant to the surface in a clean-in-place process in an amount effective to remove a portion of a soil containing titanium dioxide, and leaving behind a titanium dioxide soil;
• b) applying a second use composition to the surface containing the titanium dioxide soil in a clean-in-place process, the second use composition comprising:
• i) a pH adjuster in an amount sufficient to provide the second use composition with a pH at or below 7;
• ii) an anionic surfactant comprising an alkyl alkoxylate phosphate ester wherein the anionic surfactant is present in an amount sufficient to remove at least about 10% of a titanium dioxide soil from the surface when the second use composition is allowed to contact the surface for at least about 15 minutes at 80° C.;
• and
• iii) a carrier;
• c) removing the titanium dioxide soil from the surface with the second use composition;
• and
• d) rinsing the surface to remove the second use composition and titanium dioxide soil.