The Continuous Steam Treatment process performed in our Polyfour-CBD furnaces, found overall acceptance from the start. The now well established process has set new industrial standards. High flexibility of application and excellent, reproducible, product quality combined with an unproceeded ease of operation have put this technology up and enables new applications in the industrial oxidation technique. From 1994 to 1998, over 35 Continuous steam treatment furnaces have been commissioned. A versatile, efficient and well proofed technology.