The invention relates to a method for producing formic acid formates,
whereby (a) formic acid methyl ester is partially hydrolysed with water;
(b) formic acid methyl ester and methanol are separated by distillation
from the reaction mixture obtained in step (a), forming a current
containing formic acid and water; (c) the current obtained in step (b),
containing the formic acid methyl ester and optionally methanol, is
converted into a current containing formate and water, by (i) reaction
with a basic compound having a pK.sub.a value of the corresponding acid
of the corresponding dissociation step of =3, measured at 25.degree. C.
in an aqueous solution, in presence of water, and (ii) separation by
distillation of the methanol; and (d) the current obtained in step (b),
containing formic acid and water, and the current obtained in step (c),
containing formate and water, are combined to form a mixture containing
the formic acid formate and water. The invention also relates to a device
for producing said formic acid formates and to the use of the same.