| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve such a problem that the conventional method for obtaining a solid amine carbodithioate salt is not efficient, and in particular, when an amine carbodithioate salt has high solubility, it has been difficult to efficiently obtain the solid amine carbodithioate salt. <P>SOLUTION: In a method for producing an amine carbodithioate salt by mixing an amine, carbon disulfide, and a metal hydroxide in an aqueous solution and making them react with one another, the solid amine carbodithioate salt is efficiently obtained by making 1.3 times equivalent or more of the metal hydroxide with respect to the amino group of the amine to react with carbon disulfide coexist therewith. Moreover, an aqueous solution of the amine carbodithioate salt with high concentration is simultaneously produced by further mixing the amine, carbon disulfide, and the metal hydroxide with the aqueous solution of the amine carbodithioate salt from which the solid amine carbodithioate salt has been separated and making them react with one another. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
