Class 562/117 - Conversion of sulfur containing hetero ring compounds to sulfonic acids

Subclass of Class 562 - Organic compounds -- part of the class 532-570 series
Definition: Processes wherein sulfonic acids are formed by conversion
No. of patents: 4
Last issue date: 08/14/2007

Number	Title	Issue Date
7256306	Arylalkylsulfonic acids and methods for producing same This invention relates new and improved processes for the preparation of arylalkylsulfonic acids derived from aromatic or substituted aromatic molecules and AOS acid (generally a mixture of alkenesulfonic acid and sultones, produced from the sulfonation of alpha ole...	08/14/2007
6495714	Method for producing alkanesulfonic acids A process for preparing alkanesulfonic acids from dialkyl sulfites comprises the following steps: rearrangement of dialkyl sulfite in the presence of a suitable catalyst to form the corresponding alkyl alkanesulfonate and hydrolysis of the resulting alkyl alka...	12/17/2002
4238410	Process for producing magnesium salt of olefin sulfonic acid Disclosed is a process for producing the magnesium salt of an olefin sulfonic acid comprising the steps of: sulfonating and neutralizing an olefin having 10 to 20 carbon atoms, and; then, hydrolyzing sultone contained in the resulting neutralization product in...	12/09/1980
3954849	Preparation of alkenyl sulfonates Treatment of oil-soluble viscous liquid propene or butene polymers having a number average molecular weight of about 250-500 with gaseous sulfur trioxide in falling-film or static reactors yields acidic sulfonation products comprising alkenyl sulfonic aci...	05/04/1976

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