Sumitomo Seika Chemicals Co., Ltd.

Seiya Ashibe

Seiji Bando

Hirotake Moriyama

Yusaku Masuhara

Provided is an industrially advantageous method for producing a methylene disulfonate compound easily and inexpensively using fewer raw materials. The method for producing a methylene disulfonate compound of the present invention comprises step A of reacting at least one alkanesulfonic acid compound and sulfur trioxide in the presence of at least one member selected from the group consisting of a sulfoxide compound and a sulfone compound to thereby obtain reactant A comprising an alkanedisulfonic acid compound, and step B of reacting reactant A obtained in step A and a formaldehyde compound in the presence of sulfur trioxide to thereby obtain a methylene disulfonate compound.

Method for producing methylene disulfonate compound

Provided is a novel production method capable of easily producing a methylene disulfonate compound. The method for producing a methylene disulfonate compound comprises reacting a specific sulfonic acid compound with a formaldehyde compound in the presence of sulfur trioxide.

Provided is a novel production method capable of easily producing a cyclic disulfonic acid ester compound. This method for producing a cyclic disulfonic acid ester compound comprises reacting a specific sulfonic acid compound with a specific sulfuric acid ester compound.

Growing community of inventors

Hyogo, Japan

Seiya Ashibe