Method for cleaning surfaces,metallic surfaces in particular
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United States of America Patent
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Issued Date -
Sep 2, 2004
app pub date -
Nov 21, 2003
filing date -
May 28, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
This invention relates to a process for cleaning surfaces, notably metal surfaces. The process for cleaning a surface on which chemical species Z are fixed via adsorption or chemisorption, is characterised, in that the surface is put into contact with an aqueous solution capable of shifting the adsorption or chemisorption balance of, the chemical species Z to bring them into the aqueous solution, and the aqueous solution comprising chemical species Z is separated from the thus cleaned surface. It applies to the decontamination of stainless steel surfaces contaminated with caesium via an acidic aqueous solution with a pH of 2 to 4.
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