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AssigneeMetallgesellschaft Aktiengesellschaft
InventorsEckart Muller, Thomas Simo, Helmut Markwort, Berthold Scholz
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A process for contacting two counterflowing immiscible liquid phases in a column in which perforated plates define mixing zones and separating zones and in which each mixing zone receives a heavy-liquid phase entering through perforations from above and a light-liquid phase entering through perforations from below and a dispersion formed by the two liquid phases in each mixing zone is transferred from the latter into a juxtaposed separating zone from which the heavy-liquid phase is withdrawn downwardly through perforations and the light-liquid phase is withdrawn upwardly through perforations. The dispersion is contacted in the separating zones with a filling of a material which accelerates coalescence.
In a process for contacting two counterflowing immiscible liquid phases in a column in which perforated plates define mixing zones and separating zones and in which each mixing zone receives a heavy-liquid phase entering through perforations from above and a light-liquid phase entering through perforations from below and a dispersion formed by the two liquid phases in each mixing zone is transferred from the latter into a juxtaposed separating zone, from which the heavy-liquid phase is withdrawn downwardly through perforations and the light-liquid phase is withdrawn upwardly through perforations, the improvement in which the dispersion is contacted in the separating zones with a filling of a material which accelerates coalescence.
In an apparatus for contacting a heavy-liquid phase with a light-liquid phase which comprises a vertical cylindrical vessel formed near its top with an inlet for said heavy-liquid phase and with an outlet for said light-liquid phase and near its bottom with an inlet for said light-liquid phase and with an outlet for said heavy-liquid phase, and which contains plates having perforations forming flow passages for the light-liquid phase and perforations forming flow passages for the heavy-liquid phase and disposed above the perforations forming flow passages for the light-liquid phase, the superposed perforated portions forming mixing zones for mixing the two liquid phases occupying 10-30% of the cross-sectional area of the vessel, the plates being unperforated in an area which occupies 40-80% of the cross-sectional area of the container so that this area and an area which occupies 10-30% of the cross-sectional area of the container and through which liquid is withdrawn define a separating zone for the liquid phases, the improvement wherein said separating zone is filled with a material which accelerates coalescence.
Dependencies are inferred from the claim text.