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Caprolactam Genomatica (San Diego, Calif.; www.genomatica.com) recently announced the production…
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Reducing foundry emissions

By Gerald Ondrey |

Cast parts, such as engine blocks, are typically made by pouring molten metal into so-called cores — sand-based molds that have internal passages for the component to be cast. Such casting cores are typically made by reacting sand with organic binders in a curing process. In recent years, industry has been seeking alternatives to organic binders to avoid releasing toxic emissions during curing. Last month, Süd-Chemie AG (Munich, Germany; www.sud-chemie.com) inaugurated in Moosburg a new production plant of its subsidiary, WD-Giesserei-Technik GmbH (Fuldabrück, Germany), for the production of casting cores using the Inotec process. Developed and patented by Ashland-Südchemie-Kernfest GmbH — a joint venture between Süd-Chemie and Ashland, Inc. (Covington, Ky.; www.ashland.com) — the Inotec binding system combines a liquid component (a modified silicate solution) with promoters that contain high concentrations of minerals. Because the binding system is inorganic, virtually no emissions are emitted in the process, says the company. From May, the Moosburg plant is expected to begin series production of a package consisting of various cores, including those to be used for the casting of cylinder blocks…
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