B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 5/08 (2006.01) B01F 5/02 (2006.01) B01F 5/06 (2006.01) B01F 13/00 (2006.01) B01J 19/00 (2006.01)
Patent
CA 2236460
Described is a method of continuously producing a dispersion of at least one fluid A forming the disperse phase and at least one fluid B forming a continuous phase surrounding the disperse phase. At least one stream of fluid A and at least one stream of fluid B are fed into a dispersion apparatus where they meet in a dispersion chamber. Used is a microchannel dispersion apparatus (1a, 1b, 3a, 3b) in which each of the streams of fluid A and B are divided by an array of microchannels (1a, 1b) into separate threads of moving fluid which emerge into the dispersion chamber (4) with each thread of the same fluid moving at the same speed in such a way that, at the channel outlets, each jet (6a) of disperse phase is immediately adjacent to a jet (6b) of continuous phase and so that each jet (6a) of disperse phase is surrounded, as it breaks up into droplets, by the adjacent jets (6b) of continuous phase.
L'invention concerne un procédé permettant de disperser en continu au moins un fluide A constituant la phase dispersée et au moins une phase continue d'un fluide B constituant la phase d'enveloppe. Selon ce procédé, on amène au moins un fluide A et un fluide B dans un appareil de dispersion, où ils sont mis en contact dans une chambre de dispersion. On utilise pour cela un dispositif de dispersion à microstructure (1a, 1b, 3a, 3b), dans lequel les fluides A et B arrivent par une série de microcanaux (1a, 1b) dans la chambre de dispersion (4) en filets fluidiques spatialement distincts, à la même vitesse, de façon qu'au niveau de leur orifice d'arrivée dans la chambre de dispersion (4), chaque jet (6a) de la phase dispersée se trouve immédiatement adjacent à un jet (6b) de la phase continue, et que chaque jet (6a) de la phase dispersée, qui se désagrège en particules, soit enveloppé par les jets (6b) de la phase continue voisine.
Bier Wilhelm
Herrmann Erhard
Koglin Bernd
Linder Gerd
Menzel Thomas
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
Forschungszentrum Karlsruhe Gmbh
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