+31 314 373 333Hosokawa Micron provides the chemical industry with mixing and drying equipment for the production of heterogeneous catalysts.
Preparation of the support material (carrier)
The Drymeister (DMR) flash dryer is very suitable for producing catalyst carriers from slurries. And it has a major advantage compared to conventional flash dryers, because the DMR is much more energy efficient. Support materials are conventionally dried using a spray dryer, which needs to be fed in slurry form. The DMR flash dryer however, can be fed with slurries but also with filter cakes or pastes. Therefore a much more energy efficient, mechanical dewatering process can be used before thermal drying.
Impregnation of carriers with actives
Nauta mixers and vacuum dryers are very suitable for the impregnation of catalyst carriers with active groups. They provide a gentle mixing and drying process, necessary because the relative size of the catalyst could determine activity as well as selectivity. By adjusting temperature and/or pressure during the process, any type of impregnation can be achieved.
The carrier is impregnated by addition of the solution in the mixer just in front of the agitator, making sure that the active ingredient is evenly distributed on the support. After addition, the product can be dried and the solvent can be recovered.
After addition of the actives the material can also be calcined or dried using the Nauta vacuum dryer, either under inert atmosphere or, depending on the grade after drying, oxygen levels can be slowly increased at certain temperatures to passivate the metals on the carrier.
Milling and compaction equipment
Besides mixers and dryers the Hosokawa Group can also supply milling and compaction equipment, suitable for the production of catalysts.
