{"id":9635,"date":"2026-06-30T11:08:30","date_gmt":"2026-06-30T09:08:30","guid":{"rendered":"https:\/\/www.hitec-zang.de\/?p=9635"},"modified":"2026-06-30T11:08:32","modified_gmt":"2026-06-30T09:08:32","slug":"langzeitstabilitaet-im-katalysator","status":"publish","type":"post","link":"https:\/\/www.hitec-zang.de\/en\/langzeitstabilitaet-im-katalysator\/","title":{"rendered":"Long-term stability in the catalyst"},"content":{"rendered":"
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In collaboration with the Cologne University of Applied Sciences, we developed a fixed-bed reactor that was used to investigate the long-term stability of various catalysts. The paper resulting from the study and the associated experiments was published in the International Journal of Molecular Sciences.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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As part of the experiments, the potential of robust, strongly basic Type I ion-exchange resins as catalysts for the aldol condensation of citral and acetone was investigated. The aldol reaction in particular\u2014which is traditionally carried out using aqueous sodium hydroxide as a catalyst\u2014holds the potential for greater sustainability and reduced waste production. In several batch experiments, different deactivation processes of the catalysts were observed based on the temperature profile.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Continuous operation in a fixed-bed reactor with temperature course of (a) citral and acetone (1:8) with 2 mL\/min and an effective catalyst volume of 11.5 mL Amberlyst\u00ae A26 OH catalyst at 30 \u00b0C and (b) citral and acetone (1:8) with 2 mL\/min and an effective catalyst volume of 11.5 mL Lewatit\u00ae K 6465 catalyst at 30 \u00b0C.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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In addition, the system was used extensively during the lab practicum. Thanks to its intuitive interface, the students found it very easy to use the accompanying automation software LabVision<\/a> This provided the lab technicians with a unique opportunity to work with a system that is rarely encountered in typical day-to-day laboratory work.<\/p>

We are pleased that our technology is helping to advance research and enable important study results. If you have a research project where we can support you, please feel free to contact us. And if you\u2019d like to delve deeper into the exciting findings from the Technical University of Cologne, you can find the online paper here:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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From Research<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Temperature Stable Ion Exchange Resins as Catalysts for the Manufacturing of Vitamin Precursors by Aldol Reaction<\/strong><\/p>

Jonas Vosberg, Thomas Bouveyron et al. \u2022 <\/em>International Journal of Molecular Sciences \u2022 2023<\/p>

DOI: 10.3390\/ijms241814367<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

In Zusammenarbeit mit der Technischen Hochschule K\u00f6ln haben wir einen Festbettreaktor entwickelt, der zur Untersuchung der Langzeitstabilit\u00e4t verschiedener Katalysatoren eingesetzt wurde. Das aus der Studie und den damit verbundenen Versuchen entstandene Paper ist im International Journal of Molecular Sciences erschienen. Im Rahmen der Versuche wurde das Potenzial robuster, stark basischer Typ-I-Ionenaustauscherharze als Katalysatoren f\u00fcr die […]<\/p>\n","protected":false},"author":3,"featured_media":9644,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[17],"tags":[],"class_list":["post-9635","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-automatisierung"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/posts\/9635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/comments?post=9635"}],"version-history":[{"count":34,"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/posts\/9635\/revisions"}],"predecessor-version":[{"id":9675,"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/posts\/9635\/revisions\/9675"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/media\/9644"}],"wp:attachment":[{"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/media?parent=9635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/categories?post=9635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hitec-zang.de\/en\/wp-json\/wp\/v2\/tags?post=9635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}