A process for recovery of formic acid

Details A process for recovery of formic acid A process for recovery of formic acid

C - Chemistry, Metallurgy

07

C

C07C 51/48 (2006.01) C07C 53/02 (2006.01) C07C 53/128 (2006.01) C07D 307/48 (2006.01)

Patent

CA 2721165

The invention relates to a process for the recovery of concentrated high purity formic acid having a concentration of at least 50%, most preferably at least 95%, from biomass wherein an aqueous liquid mixture containing levulinic acid and possibly furfural is subjected to a liquid-liquid extraction step, followed by the recovery of furfural, formic acid and levulinic acid.

Linvention concerne un procédé de récupération dacide formique concentré haute pureté présentant une concentration dau moins 50%, idéalement dau moins 95%, à partir de biomasse. Ce procédé consiste à soumettre un mélange liquide aqueux contenant de lacide lévulinique et éventuellement du furfural à une étape dextraction liquide-liquide, puis à récupérer le furfural, lacide formique et lacide lévulinique.

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