Abstract

In 1994, the Belgian company, Domo, a leading manufacturer of carpets and flooring, took over a caprolactam producing facility in Leuna, East Germany and decided to modernise the outdated old communist-inspired chemical complex. Caprolactam is one of the feedstock ingredients in fibre manufacturing for carpets but handling the product and its side products, cyclohexanone and hydroxylammonium sulphate, is notoriously difficult as the substances produce gas, which makes it very hard for standard centrifugal pumps to operate normally. Some modern heavy-duty self-priming chemical pumps were required for the upgrade project.

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