Method for regeneration of iron-loaded denox catalysts

Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...

Reexamination Certificate

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C502S020000

Reexamination Certificate

active

07858549

ABSTRACT:
The invention relates to a method for regenerating denox catalysts having an increased SO2/SO3conversion rate as a result of the cumulation of iron compounds, and is characterized in that the catalysts are treated with an essentially aqueous acid solution, preferably having a pH between 0.5 and 4, and with an addition of antioxidants.

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International Search Report in PCT International application No. PCT/EP03/09794, mailed Dec. 29, 2003.

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