Method for the production of formic acid formates

Details Method for the production of formic acid formates Method for the production of formic acid formates

C - Chemistry, Metallurgy

07

C

C07C 51/09 (2006.01) C07C 51/41 (2006.01) C07C 53/02 (2006.01) C07C 53/06 (2006.01)

Patent

CA 2544200

The invention relates to a method for the production of formic acid formates, wherein a flowing liquid (I) containing formic acid, and a flowing liquid (II) containing a metal formate, are provided. The flowing liquids (I) and (II) are guided to a rectification column such that a higher or equal guiding point for the liquid flow (II) is selected for the rectification column for the liquid flow (I). The liquid flows (I) and (II) in the rectification column are mixed by separating water via the head of the rectification column and the liquid flow is withdrawn from the rectification column, said liquid flow containing the formic acid formate. The invention is characterised in that the liquid flow is obtained as a melt containing at least 0.5 wt. % water.

Procédé de préparation de formiates d'acide formique qui consiste à disposer d'un flux liquide (I) contenant de l'acide formique et d'un flux liquide (II) contenant un formiate métallique, à introduire les flux liquides (I) et (II) dans une colonne de rectification de manière à choisir pour le flux liquide (II) un site d'introduction dans la colonne de rectification identique ou plus élevé que pour le flux liquide (I), à mélanger les flux liquides (I) et (II) dans la colonne de rectification, avec séparation de l'eau au-dessus de la tête de la colonne de rectification, et à extraire de la colonne de rectification un flux de bas de colonne contenant le formiate d'acide formique. Ledit procédé est caractérisé en ce que l'on obtient un flux de bas de colonne sous forme de matière fondue contenant moins de 0,5 % en poids d'eau.

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