Method for the separation and recovery of furfural and organic v

Details Method for the separation and recovery of furfural and organic v Method for the separation and recovery of furfural and organic v

1976-12-17

1978-05-09

Raymond, Richard L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260540, 260541, 260542, 568916, 568918, 568913, C07D30750

Patent

active

040886603

ABSTRACT:
The object of the present invention is a method for the separation and recovery of furfural and organic volatile acids from a vapor mixture obtained in the process of preparation of furfural. According to the method, from a vapor mixture containing water vapor, furfural and organic acids and escaping from a reaction vessel operating on the counter flow principle, wherein the reaction to form furfural takes place, organic acids are separated and recovered before the vapor mixture is condensed and conducted to the furfural concentration process. The separation is performed by absorbing the organic acids from the vapor mixture into the concentrated furfural solution in an absorption tower operating on the counter flow principle and by subsequently separating the furfural and organic acids from each other by means of vacuum distillation.

REFERENCES:
patent: 2689250 (1954-09-01), Natta
patent: 2818413 (1957-12-01), Natta

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