Raschig Rings for Isomer Separation

Nearly 100 years ago, Fritz Raschig set out on an ambitious quest to develop an efficient way of distilling cresols from phenols using column distillation. His initial attempt used wine bottlenecks instead of his eventual invention.

Ceramic raschig rings are inert materials that provide a high surface area with an easily defined large void space, making them the perfect material to pack distillation column racking with ease. By eliminating overpacking which could otherwise lead to vapor choking, ceramic raschig rings make for great home distilling solutions and can last a lifetime if kept clean; their only drawback may be taking in unwanted compounds like sulfur that you’re trying to eliminate using a reflux still; in such instances they can easily be removed by spreading them out on a cookie tray and baking them at normal oven temperatures for at least an hour at normal oven temperatures for one hour at any normal setting for just that amount of time – or you could add them straight back in at any other point within that same process!

Ceramic raschig rings are used in various chemical and petrochemical industries for mass transfer operations such as fractional distillation. Additionally, they are deployed in devices which put gas and liquid into contact to achieve gas absorption, air stripping or chemical reactions; towers often employ them for drying, cooling and absorption purposes while containers containing fissile materials like enriched uranium nitrate use them to act as neutron absorbers in order to avoid criticality accidents.