Difference between revisions of "Spray drying"
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Revision as of 18:13, 6 August 2014
Spray drying is a method of producing a dry powder from a liquid or slurry by rapidly drying it with a hot gas. This is the preferred method of drying of many thermally-sensitive materials such as foods and pharmaceuticals. A consistent particle size distribution is a reason for spray drying some industrial products such as catalysts. Air is the heated drying media; however, if the liquid is a flammable solvent such as ethanol or the product is oxygen-sensitive, then nitrogen is used.[1]
References
- ↑ A. S. Mujumdar (2007). Handbook of industrial drying. CRC Press. p. 710. ISBN 1574446681. http://books.google.com/?id=uKOGg1vk61MC&pg=PA710.
