Device to separate the phases of a two-phase mixture and its application to determine the physical and/or chemical parameters of this mixture

摘要

A liquid-liquid phase separation device comprises a straight hollow cylinder (1) with one end formed by the wall of an extraction device, an inlet (3) in the side wall of the cylinder in the axis of displacement of the phase which is to be trapped, and a smaller outlet (4) in the other end wall. A third orifice of intermediate size for the other phase is placed near the inlet. A separation device for separation and recombination of phases in a two phase liquid-liquid mixture comprises: (1) a straight hollow cylinder (1) with one end formed by the wall of an extraction device; (2) an inlet (3) in the side wall of the cylinder in the axis of displacement of the phase which is to be trapped; (3) a smaller outlet (4) in the other end wall; and (4) a third orifice of intermediate size for the other phase, placed near the inlet. The inlet (3) is on the axis of displacement of the phase which is to be trapped. The two-phase mixture is an emulsion or two-phase liquid-liquid dispersion. The device is made of a material whose wettability is adapted to the phase to be trapped. The device is made of a hydrophilic material such as stainless steel or polyethylene to trap an aqueous phase, or a hydrophobic and organophilic material such as polytetrafluoroethylene (TEFLON (RTM)), polyvinylidene fluoride or polychlorotrifluoroethylene to trap an organic phase. The diameter of the separating device is less than or equal to 90% of the extraction device and the length is less than or equal to 85% of the diameter of the extraction device. The device contains one or more detectors to make measurements of the separated phase. An Independent claim is also included for an intermediate instrumentation union to a liquid-liquid extraction device containing one or more separation devices as described above. This can be used in line to measure the physical, chemical, optical and acoustic properties of the liquid in the separated phase and of the mixture (emulsion).