| 摘要 |
The invention relates to a method for producing and purifying substituted benzene sulfonates, whereby a mixture, which contains, in free or bound form, at least one substituted benzene sulfonate or at least one corresponding substituted benzene sulfonic acid, sulfur trioxide, sulfuric acid, and/or hydrogen chloride, is neutralized in an aqueous phase with an alkali hydroxide and is purified in this aqueous phase. In addition, the at least one substituted benzene sulfonate is subsequently separated out of this aqueous phase. The inventive method is characterized in that said mixture is separated into particles before it is introduced into this aqueous phase. The Sauter diameter of the particles has a value ranging from 1 mu m to 2 cm.
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