micromobility expo 2019, 02 - 04 May
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Energy turnaround in synthetic chemistry

Catalysts can create more sustainability

Logo Karlsruher Institut für Technologie


Karlsruher Institut für Technologie

Exhibitor details
Exhibitor details
Logo Energy turnaround in synthetic chemistry

Product description

The development of ecosensitive and low-cost manufacturing methods for chemical raw materials is an important objective in the chemical and pharmaceutical industries. Over the last few years, for example, photo-redox catalysis has established itself as a frequently used method in the synthesis of medical agents. Here, visible light, provided e.g. by LEDs, is used as a source of energy for synthesis reactions. Thus the use of thermic energy is increasingly being replaced by light as a sustainable source of energy. Catalyst materials that are currently available can only be applied in a solution as homogenous catalysis. Here, the dissolved catalysts, which can be activated by light, trigger the synthesis reaction in the mixture of substances, and they remain unchanged after the product has been created. However, retrieving and reusing the catalyst from the mixture would be extremely complicated and is therefore not worthwhile. Scientists at the KIT have now created the option to bond photo-catalysts to artificial resin as solid carrier material in a multiphase process. A functionalised polystyrene resin is used that is completely dissoluble in organic solvents. Bonded to solid material, the catalyst can be separated from the reactive mixture through simple filtration and thus retrieved, which enables direct and multiple reuse. In addition, the newly developed solid catalyst is applicable with all conventional solvents, also with water as a safe solvent. Thus already familiar photo-redox reactions can be performed in a particularly sustainable manner. The new solid catalyst offers a wide range of applications in synthetic chemistry. Major advantages result from its use in industrial engineering, so-called flow chemistry. Corresponding flow apparatus can be coated with the solid catalysts so that reactions can take place in a continuous flow. Thus industrially relevant quantities of material can be produced with a minimum use of the valuable catalysts.

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Hall 2, Stand B16

(Main stand)

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