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PROCESS FOR CLEANING SUBSTRATES WITH OXIDISING AGENTS AND REDUCING AGENTS

  • US 20110023913A1
  • Filed: 08/27/2008
  • Published: 02/03/2011
  • Est. Priority Date: 09/05/2007
  • Status: Active Grant
First Claim
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1. A process for cleaning substrates wherein cleaning is carried out by at least one oxidising agent selected from the group consisting of permanganate and ferrate (VI), and subsequently by a reducing agent wherein the oxidising agent selected from the group consisting of permanganate and ferrate (VI) is in the form of an alkaline solution and the dissolved oxidising agent has a percentage by mass of 0.002 to 0.1 mass-% in the solution.

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