Abstract:
The invention concerns a fluid treating device, containing a distributing device (2) with a revolving disc (2) in a stationary housing (13), and a motor (15) for rotating the revolving disc (12). Feed and discharge pipes (3, 5, 6; 4, 7, 8) are connected to an end wall of the housing (13) and open onto the revolving disc (12). Stationary vessels (1) are connected to said housing (13) via connecting pipes (10, 11). In the revolving disc (12) are provided passageways (44-49) which open on the round outer side of the disc (12). For a number of positions of this disc (12), the passageways (44-49) are each connected to one of the above-mentioned connecting pipes (10, 11), while feed pipes (3, 5, 6) and discharge pipes (4, 7, 8) open via ring-like ducts (24, 29, 30, 50-52 and 37-38, 53-55) into different passageways (44-49).
Abstract:
Un procede comportant un lit mobile simule divise le lit en des zones separees (I, II, III, IV) chacune desquelles comprend un ou plusieurs recipients separes (4). Les zones (I, II, III, IV) correspondent aux fonctions du procede, d'une maniere caracteristique a la sorption, au deplacement, a l'ellution et a la regeneration. Des pompes d'alimentation (5, 6, 7, 8) en serie avec les recipients maintiennent une hauteur piezometrique desiree pour chaque zone. Les fonctions de chaque zone sont en rotation sequentielle, la sequence etant synchronisee par rapport a la migration de la partie frontale entre des phases adjacentes dans la boucle de fluide en circulation au travers des zones.
Abstract:
A device is provided for performing chemical transformation in a fluid, with a flow distributor (11) having at least one fluid medium inlet (11), at least one fluid medium outlet (15), and at least one confinement (13) wherein the chemical transformation is performed; and a means for rotating, rocking, wagging, or oscillating the device. At least one confinement may be equipped with a provision for providing heat, cooling, sound, light or other types of radiation, such provision being contacted to an external source through an actuator shaft (14). The flow distributor (11) may be provided with sectors connected with the centrally located fluid medium inlet (12) and a designated peripheral fluid medium outlet (15). The means for rotating, rocking, wagging, or oscillating the device may be an element producing magnetic fields or a shaft (14) mechanically connected to an external actuating device.
Abstract:
The invention relates to a method and device with a cylindrical tank for purifying wastewater, whereby several chambers are formed in said tank by means of partitions. The partitions are arranged on a motor-driven central axle of the tank, whereby the chambers are rotated in an anti-clockwise direction, for example. In a first phase, the wastewater that is to be purified is conducted via an ion exchange resin. In a second phase, the used ion exchange resin is purified by means of electrolysis and the water undergoes electrolysis if required. In the case of the latter, the partitions that are permeable to water can be sealed. In a third phase, the ion exchange resin is re-charged and brought into contact once more with the water. The main advantage of the invention is that only one tank is required for the entire process. Another innovation is that when selecting the intermediate product i.e. from "non-purified water" to the desired end product "purified water," environmentally friendly ion exchange resins are used in combination with a method of electrolysis. The water that is to be treated can be removed from the tank either stepwise, chamber by chamber or phase by phase in each of the appropriate states as purified water and as a desired end product by means of discharge devices. Finally, the inventive method and device can be used to purify industrial wastewater, organically contaminated water and radioactive water, to decalcify and desalinate water, treat sea water and to produce pure water in continuous, economic and environmentally friendly manner.
Abstract:
Described herein are processes and apparatus for the high purity and high concentration recovery of multivalent products via continuous ion exchange from aqueous solutions for further down-stream purification.
Abstract:
The invention relates to a microfluidic reactor having a reaction chamber configured as an annular passage (22). The invention provides that segments (25) are formed in the annular passage (22) such that due to a succession of inlets (23) and outlets (24), an alternation between the process fluids (A and B) can take place. According to the invention, additional particles (27) can be provided in the annular passage (22), which circulate in the annular passage, and which can be used for absorbing and desorbing ions, for example. In this way, the ions in question can be removed from the process fluid (A) and transferred to the process fluid (B), for example. In a further claimed method, the reactor according to the invention can be used to realize 18F- ions from the water enriched therewith, and to convey said ions to a solvent like acetonitril, for example. In further progression, a radiopharmacon (FDG, for example) can be produced from the 18F- ions.
Abstract:
Die Erfindung betrifft einen mikrofluidischen Reaktor mit einem als Ringkanal (22) ausgebildeten Reaktionsraum. Erfindungsgemäß ist vorgesehen, dass in dem Ringkanal (22) Segmente (25) dadurch gebildet sind, dass durch eine Abfolge von Einlassen (23) und Auslässen (24) ein Wechsel zwischen den Prozessfluiden (A und B) stattfinden kann. In dem Ringkanal (22) können erfindungsgemäß weiter Partikel (27) vorgesehen sein, die in dem Ringkanal umlaufen und beispielsweise zur Adsorption und Desorption von Ionen verwendet werden können. Auf diese Weise können die betreffenden Ionen beispielsweise aus dem Prozessfluid (A) abgezogen und in das Prozessfluid (B) übertragen werden. Der erfindungsgemäße Reaktor kann in einem weiterhin beanspruchten Verfahren beispielsweise dazu verwendet werden, 18 F - -Ionen aus mit diesem angereicherten Wasser zu gewinnen und einem Lösemittel wie Acetonitril zuzuführen. Im weiteren Verlauf kann mit den 18 F - -Ionen ein Radiopharmakon (beispielsweise FDG) hergestellt werden.
Abstract:
A device is provided for performing chemical transformation in a fluid, with a flow distributor having at least one fluid medium inlet, at least one fluid medium outlet, and at least one confinement wherein the chemical transformation is performed; and a means for rotating, rocking, wagging,or oscillating the device. At least one confinement may be equipped with a provision for providing heat, cooling, sound, light or other types of radiation, such provision being contacted to an external source through an actuator shaft. The flow distributor may be provided with sectors connected with the centrally located fluid medium inlet and a designated peripheral fluid medium outlet. The means for rotating, rocking, wagging, or oscillating the device may be an element producing magnetic fields or a shaft mechanically connected to an external actuating device.
Abstract:
Processes for the removal of ions and minerals from water using separate beds of weakly acidic cation exchange resins (Ia, IIa, IIIa, IVa, Va) and weakly basic anion exchange resins (Ib, IIb, IIIb, IVb, Vb) connected in series are disclosed. An amine or ammonia buffer is used to optimize the exchange efficiencies. Spent regenerant is recovered and reused as reconstituted regenerant.