PATENT

3237. -----. [SCHAFFGOTSCH-BENZIN G. m. b. H]  [Sulfonic Acids.]  French Patent 53,488, no date.  Kainer, p. 291.

Alcohols occurring in the Fischer-Tropsch synthesis process are converted into sulfonic acids by treatment with SO₂ and air in the presence of small amounts of halogens.  (2 parts SO₂, 1 of air, and 0.1 of Cl).

See also French Patent 901,555.