出典:Wiktionary
Raschig ring (複数形 Raschig rings)
出典:Wikipedia
出典:『Wikipedia』 (2011/08/08 14:15 UTC 版)
Raschig rings are pieces of tube (approximately equal in length and diameter) used in large numbers as a packed bed within columns for distillations and other chemical engineering processes. They are usually ceramic or metal and provide a large surface area within the volume of the column for interaction between liquid and gas or vapour. Raschig rings are named after their inventor, the German chemist Friedrich Raschig.