Assertion: vanillin | /r/HasProperty | recovered in the form of a stream
Facets:
value: low concentration of natural vanillin
type: OTHER
value: by drawing off via a sidestream
type: MANNER
Source sentences:
text: a) in a first step, the stream (F 1 ) is treated in order to remove the ultralights (stream (F 11 )) that it contains and more particularly the ethyl acetate; the resulting stream thus obtained comprising the natural vanillin, the lights and the heavies is called stream (F 2 ); b) in a second step, the stream (F 2 ) is fed into a divided wall column which makes it possible to recover, at the top of the column, a stream (F 32 ) comprising the lights and optionally a low concentration of natural vanillin, and at the bottom of the column, a stream (F 34 ) comprising the heavies, and in particular vanillyl alcohol, and optionally a low concentration of natural vanillin, the vanillin being recovered in the form of a stream (F 33 ) by drawing off via a sidestream, it being possible for this stream to optionally comprise a low concentration of lights and/or of heavies.
text: b) in a second step, the stream (F2) is fed into a divided wall column which makes it possible to recover, at the top of the column, a stream (F32) comprising the lights and optionally a low concentration of natural vanillin, and at the bottom of the column, a stream (F34) comprising the heavies, and in particular vanillyl alcohol, and optionally a low concentration of natural vanillin, the vanillin being recovered in the form of a stream (F33) by drawing off via a sidestream, it being possible for this stream to optionally comprise a low concentration of lights and/or of heavies.
text: a) in a first step, the stream (F 1 ) is treated in order to remove the ultralights (stream (F 11 )) that it contains and more particularly the ethyl acetate; the resulting stream thus obtained comprising the natural vanillin, the lights and the heavies is called stream (F 2 ); b) in a second step, the stream (F 2 ) is fed into a divided wall column which makes it possible to recover, at the top of the column, a stream (F 32 ) comprising the lights and optionally a low concentration of natural vanillin, and at the bottom of the column, a stream (F 34 ) comprising the heavies, and in particular vanillyl alcohol, and optionally a low concentration of natural vanillin, the vanillin being recovered in the form of a stream (F 33 ) by drawing off via a sidestream, it being possible for this stream to optionally comprise a low concentration of lights and/or of heavies.