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July Chementator Briefs

By Edited by Gerald Ondrey |

  ODC for Cl2 production Last month, ThyssenKrupp Uhde GmbH (Dortmund; www.uhde.eu) and Bayer MaterialScience AG (BMS; Leverkusen, both Germany; www.bayermaterialscience.com) commercially launched — worldwide — the oxygen depolarized cathode (ODC) technology, which BMS and ThyssenKrupp Uhde/UhdeNora developed to improve the efficiency of membrane chlor-alkali plants. By replacing the electrode that normally produces H2 in the membrane process by an oxygen-depolarized cathode, O2 suppresses the formation of H2. As a result, the plant produces only caustic and Cl2, and the electricity consumption for the process is reduced by as much as 30%, say the companies (for more details, see CE, May 2007, pp. 50–55). The ODC technology has undergone two years of industrial-scale operation in a demonstration plant at Bayers Krefeld-Ürdingen site (CE, May 2010, p. 11). Oil hydrogenation BASF Catalysts LLC (Iselin, N.J.; www.basf.com/catalysts) has developed new nickel catalyst and activated clay technology for the hydrogenation of edible oils and fatty acids that improves activity with the same level of metal. The greater catalyst activity allows food processors to shorten batch times, or run reactions at lower temperatures,…
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