Basf Aktiengesellschaft

Basf Se Corporation

Robert Lenz

Alexander Hauk

Christoph Adami

Jörg Pastre

Ralf Böhling

Jörn Karl

Jörg Heilek

Stefan Gropp

Daniela Rieck

Gerhard Laux

Gerasimos Kaouris

Thomas Laubscher

Uwe Benz

Uwe KRÜGER

The calculation of the above balance shows that the division of stream () into the streams () and () used here leads to the fact that in the neutralization stage no excess sodium formate is produced, so that any ejection can be omitted. Furthermore, the water content of the stream () comprising sodium formate recirculated to the first crystallization stage in this case can be set to a very low value.

Production of sodium diformate

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 pKvalue of the corresponding acid of the corresponding dissociation step of =3, measured at 25&#xb0; 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.

Method and device for producing formic acid formates and use of said formates

A process for preparing acid formates which comprises

Method and device for producing formates and the use thereof

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Hochdorf-Assenheim, Germany

Robert Lenz