Kemira Chemicals Oy

Kemira Oyj

Kari Saari

Erkki Paatero

Esko Tirronen

Pentti Hukkanen

Antti Vuori

Pentti Pekonen

Marko Lahtinen

Pekka Vapaaoksa

Riikka Timonen

Heli Koskinen

Jori Kerälä

A method for manufacturing alkali metal or alkaline-earth metal formate, starting from a formate anion comprises at least the following sequential steps: A) conversion of a solid anion exchanger to formate form by feeding into it a solution containing a formate anion, B) exchanging the formate anion in the anion exchanger for a replacing anion by feeding into it an alkali metal or alkaline-earth metal salt solution of this replacing anion, C) recovering the alkali metal or alkaline-earth metal formate solution eluted from the anion exchanger during the exchange of the formate anion. The anion exchanger is converted to formate form by feeding into it a sodium formate solution, a formic acid solution or a solution which contains both sodium formate and formic acid. The method can be used for production of potassium formate or calcium formate.

Method for manufacturing alkali metal or alkaline-earth metal formate

In a method for preparing formic acid, methyl formate is prepared with methanol as a reactant. In the method, methyl formate obtained from methanol in a reaction is fed through an ion exchange bed, in which the hydrolysis into formic acid and methanol and the separation of formic acid from methanol take place simultaneously by means of the catalytic and adsorbent properties of a solid in exchange material in the ion exchange bed

Method for preparing formic acid

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Vantaa, Finland

Kari Saari