부산대학교 도서관

A rising-film tubular reactor was used for sulfation of fatty saturated higher alcohol with a gas mixture of SO3 gas and air. The selectivity of sulfation was studied. The sulfation is accompanied by side reactions which reduce the yield of alkyl ether sulfate. A quantitative study was carried out on the presumption that the alkyl ether sulfate reacts further with SO3 to form inactive products.The ratio of reaction rate constants between the main and the side reactions was obtained quantitatively and it was found that the side reaction proceeds more rapidly at higher temperature.It was made clear that an industrial large-scale reactor should be designed as a reactor consisting of a plurality of parallel tubes with smaller diameter because the reaction temperature rises with increasing tube diameter.