Patent ID: 8357334

Claim:
A method for the production of a cyanopyridine, comprising the steps of (a) feeding a gaseous reaction product comprising cyanopyridine into a column ( 2 ), comprising an absorber section ( 3 ) and a stripping section ( 4 ), the absorber section being positioned above the stripping section, such that liquid which passes the absorber section ( 3 ) by gravity enters the stripping section ( 4 ), (b) contacting the gaseous reaction product with an aqueous phase in the absorber section ( 3 ), such that at least a portion of the cyanopyridine is dissolved in the aqueous phase to provide an aqueous solution comprising cyanopyridine, (c) stripping the aqueous solution obtained from the absorber section ( 3 ) in: step (b) with a stripping gas in the stripping section ( 4 ), and (d) eluting the aqueous solution comprising the cyanopyridine resulting from step (d)from the bottom of the column ( 2 ).