Project summary Promising

In summary then, it is probable that the in vitro test could have indicated the most promising areas of research (this is confirmed by our work in other DMI projects) but it was of limited use in fine-tuning such areas. 

Potentially useful single crystal HP-LCVD fibers include hafnium boride and tantalum carbide and have projected service temperatures ranging from 2170 to 2715 C. Presently envisioned applications include the potential use of these fibers as consumable sensors to monitor rocket exhaust temperatures. Other HP-LCVD sensor fibers, including Si, Ge and ZnSe, (Figure 15), promise to offer high value in premium automotive and medical sensor systems. Single crystal HP-LCVD germanium [20] and silicon carbide [21] fibers can now also become available for exploration. In summary, the HP-LCVD process is an ideally suited tool for the rapid fabrication and evaluation, without extensive process research, of test samples of potentially new fiber candidates for structural and sensor uses. 

This case study report deals with the production of fine chemicals. This summary of the appUcation is based on a previous publication by Kirschneck and Tekautz [21]. The basic aim of the project was to enhance the capacity of an existing plant by process intensification and by switching to a continuous plant operation. An additional benefit should be gained by less reaction volume in continuous operation mode, as one of the educts is strongly toxic. Microreaction technology was a most promising technology to fulfill these aims. 

Figure 5.2 provides a broad summary of current and projected utilization of carbon dioxide. Reactions that use CO2 to produce organic chemicals or intermediates for the chemical industry are summarized from 6 to 11 00 o clock on the diagram. The first examples, such as salicylic acid, are in current practice. Also included in Figure 5.2 are reactions that hold promise for extensive utilization in the future. Many of these involve insertion of carbon dioxide into Y—bonds, often the C—H bond. The products of interest include esters, carbamic esters, salicylic acid, and cyclic carbonates. These reactions... 

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