SULFONATION OF TOLUENE IN ROTATION FILM R EACTOR

The paper dealt with results on the mono- and disulfonation of benzene using oleum and sulfuric acid. The reaction parameters were studied u sing a batch type reactor. The toluene can be sulfonated with good yie ld and selectivity at a short residence time. An analytical method was devised for the evaluation of the experimental results. The samples w ere taken directly from the reaction mixture for the analysis. Then ex periments were carried out in a rotation film reactor. The sulfonation was studied in the presence of sulfuric acid and oleum, respectively. It was concluded that para derivates can be produced with a better yi eld and in higher qualities in rotation film reactor than with batch t echnology.