| abstract |
The invention discloses a kind of method that herbicidal carboxylic acids by making to have aromatic substituents and amine react to prepare the solid amine salt of the herbicidal carboxylic acids with aromatic substituents, described method comprises: make the herbicidal carboxylic acids with aromatic substituents in ether solvents and amine react to form amine salt, and collect from described ether solvents reaction mixture as the sedimentary amine salt with the herbicidal carboxylic acids of aromatic substituents, wherein, described ether is two fatty ethers comprising at least one uncle's aliphatic group. |