Method of producing alkanesulfonic acid
AssigneeBASF SE
InventorsMatthias Eiermann, Christian Tragut, Klaus Ebel
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Abstract
The invention relates to a process for the prepartaion of alkanesulfonic acids, comprising the following steps: (a) oxidation of alkylmercaptans and/or dialkyl disulfides and/or dialkyl polysulfides having from three to nine sulfur atoms with nitric acid to form alkanesulfonic acids, water, nitrogen oxides and other byproducts, (b) regeneration of the nitrogen oxides obtained from step (a) with oxygen to give nitric acid and recycling of the nitric acid to step (a), where steps (a) and (b) are carried out in reaction chambers separate from one another.
Claims10
A process for the preparation of alkanesulfonic acids, comprising the following steps:
- (a) oxidation of alkylmercaptans and/or dialkyl disulfides and/or dialkyl polysulfides having from three to nine sulfur atoms with nitric acid to form alkanesulfonic acids, water, nitrogen oxides and other byproducts,
- (b) regeneration of the nitrogen oxides obtained from step (a) with oxygen to give nitric acid and recycling of the nitric acid to step (a),
- which comprises carrying out steps (a) and (b) in reaction chambers separate from one another.
Dependencies are inferred from the claim text.