Chloride dioxide is a necessary ingredient as a bleaching agent in the manufacture of paper pulp, but its corrosive action adversely affects the service life of plant with which is comes into contact.
In order to extend the periods between plant replacements, a manufacturer of paper processing plant (in Sweden) has carried out successful trails with Ferralium 255 lasting over several months. Extensive tests were made with samples of a cast bar and proved the material to be far superior to the grades of stainless steel previously used. As a result, a rotor casting in Ferralium 255 has been supplied by Langley to the plant manufacturer and is destined for use in a chlorine dioxide tower in a paper bleaching plant in Japan.
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