To achieve the easy removal of iodate salts as a reaction by-product in consideration of the difficulty in separation of by-products, namely iodic acid and iodate salts, from the objective compound.
A mixture of sulfonic acid represented by general formula (1) (R1SO3)nM1 (wherein R1 is an alkyl, allyl, aryl, perfluoroalkyl; M1 is H, an organic group, a mono-trivalent metal; n is an integer of 1-3), sulfinic acid of represented by general formula (1) (R2SO2)mM2 (wherein R2 is an alkyl, allyl, aryl, perfluoroalkyl; M2 is H, an organic group, a mono-trivalent metal; m is an integer of 1-3) and iodide compounds represented by general formula (3) M3X1 (wherein M3 is H, ammonium, a mono-trivalent metal; X is iodine and l is an integer of 1-3) is oxidized, followed by removal of iodine whereby the sulfonic acid compound are purified.
KINOSHITA KOJI
TAKANO SATOSHI
HASHIMOTO YUTAKA
| JPS60228453A | 1985-11-13 | |||
| JPS512446B1 | 1976-01-26 | |||
| JPH0356455A | 1991-03-12 | |||
| JPS62192351A | 1987-08-22 | |||
| JPH0242054A | 1990-02-13 |
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