Purification of crude alkanesulfonic acid ester mixtures containing water, phenol, paraffin and optionally also lime involves two sequential steps, especially distillation steps not involving steam distillation

摘要

Purification of an alkanesulfonic acid aryl ester from a crude ester containing a mixture (amounting to above 99% of the total) of water, phenol, paraffin, the ester and optionally also lime involves two separate and sequential purification steps.