SIMPLIFIED PROCESS FOR DRYING VALUABLE SUBSTANCES AND MIXTURES OF VALUABLE SUBSTANCES IN THE FIELD OF WASHING AND CLEANING AGENTS BY MEANS OF OVERHEATED STEAM

摘要

Aqueous valuable substances or mixtures of valuable substances useful as wetting, washing and/or cleaning agents and/or suitable for use in such agents, which may also be available as aqueous compositions, are dried by means of overheated steam as the drying gas, which is recirculated into the drying stage once the evaporated water content is transferred out. The energy required to evaporate water is supplied to the circulating current of steam at least partially by direct heating with combustion heat.