technology to produce granules and pellets from powder and liquids
Coating of particles is a critical process step for many manufacturing processes. After all, coating essentially determines the product quality. The appropriate process must be found to determine the properties of as needed for the application. The following article describes, what need to be considered when developing particles. (German article)
For the production of granulates from solid and/or liquid raw materials and the coating of particles, fluid bed plants offer many possibilities for influencing the granulate properties. The process chamber of fluid bed systems must be permeable to the process gas at the bottom and at the top. It is usually bounded at the bottom by an inflow floor and at the top by a filter. The filter is thus of decisive importance for the process. (German article)
At the end of 2009, one of the world’s largest spouted bed systems for granulation started at the Dresden-based contract manufacturer IPC. A ProCell 250 from Glatt Ingenieurtechnik GmbH enables a so far unreached flexibility for agglomeration and spray granulation processes. Liquid and/or solid raw materials can be processed to granulates and pellets or existing particles can be coated. Batch or continuous operation is possible.
Food and feed products have to be developed with a focus on high yields of active ingredients and low formulation costs at the same time. As a typical industrial application, the encapsulation of volatile substances, e.g. flavors or PUFAs (polyunsaturated fatty acids), into dense and free-flowing granules is explained in this paper. This process improves storage stability, protects the products from oxygen and can be carried out with a continuously operating spouted bed apparatus.
Fluid bed equipment is widely used in many areas of industry. A particular focus of the use of fluid bed technology is the coating of particles as well as encapsulation. Especially in the food and pharmaceutical industries there are many applications. In addition, complementary technologies can be used to achieve special product properties. The first part of this article describes the basics of coating, the second part in the next issue will deal with the plant technology. (German article)
Fluid bed equipment is widely used in many areas of industry. A particular focus of the use of fluid bed technology is the coating of particles as well as encapsulation. Especially in the food and pharmaceutical industries there are many applications. In addition, complementary technologies can be used to achieve special product properties. The first part of this article (P+F 6/2008, p. 31) described the basics of coating, the second part deals with the process technology. (article in German language)
Copyright: Glatt
Copyright by Glatt