Removal of alkyl alkanesulfonate esters from alkanesulfonic...

Details Removal of alkyl alkanesulfonate esters from alkanesulfonic... Removal of alkyl alkanesulfonate esters from alkanesulfonic...

2007-11-20

2007-11-20

Anderson, Rebecca (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic acids or salts thereof

C558S044000

Reexamination Certificate

active

10912274

ABSTRACT:
Methods of removing alkyl alkanesulfonate esters from aqueous or anhydrous compositions are provided. The invention provides methods for the conversion of alkyl alkanesulfonate esters of the formula RSO3R′ to the corresponding acids of the formula RSO3H. The alkyl alkanesulfonate esters are present in an organic medium, which may contain significant amounts of water or which may be anhydrous or substantially anhydrous. In some embodiments, the invention provides methods for purifying aqueous or anhydrous alkanesulfonic acids by removing alkyl alkanesulfonate esters.

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