Abstract:
IONIC MATERIAL IS SEPARATED FROM A COMPONENT MIXTURE CONTAINING SAME, E.G. A CRUDE ALKALI CELLULOSE XANTHATE, BY CONTACTING THE COMPONENT MIXTURE WITH A LIQUID SOLVENT TO DISSOLVE IONIC MATERIAL, PREFERABLY PROVIDING A MIXTURE AUTOGENOUSLY SEPARABLE INTO TWO PHASES, ONE BEING THE LIQUID SOLVENT CONTAINING SEPARATED IONIC MATERIAL AND THE OTHER, THE NON-DISSOLVED RESIDUE OF THE COMPONENT MIXTURE, IONIC MATERIAL IS INSOLUBILIZED AND REMOVED FROM THE LIQUID SOLVENT BY CONTACTING THE LIQUID SOLVENT SEPARATELY WITH AN IMMISCIBLE ION-EXCHANGE MEDIUM (E.G. ANION-EXCHANGE RESINS, CATION-EXCHANGE RESINS, ION RETARDATION RESINS, OR ION-EXCHANGE LIQUIDS) AND RESULTANT ION-EXCHANGE LIQUID SOLVENT IS RE-USED IN THE PROCESS FOR SEPARATING IONIC MATERIAL FROM ADDITIONAL EFFECIENTLY PURIFYING MATERIALS WHICH ARE SENSITIVE TO COMPONENT MIXTURE. IONIC MATERIAL MAY BE SEPARATED FROM COMPONENT MIXTURES COMPRISING GASES, LIQUIDS, SEMISOLIDS, AND SOLIDS BY THE PROCESS OF THE PRESENT METHOD.
ADVANTAGEOUS FEATURES OF THE PROCESS INCLUDE A WIDENING OF THE CONDITIONS AND SCALE OF OPERATIONS IN WHICH SOLVENTS ECONOMICALLY CAN BE USED FOR SEPARATIONS, ADDITIONALLY, THE PROCESS PROVIDES A NOVEL ROUTE FOR MORE CERTAIN SOLVENTS, HEAT, ACIDS AND/OR ALKALIS AND/OR CONTAIN RELATIVELY LOW IONIC MATERIAL CONTAMINANT LEVELS. OTHER FEATURES STEM FROM AN ABILITY TO UTILIZE PREFERRED PURIFICATION EXPEDIENTS, E.G. HIGH BOILING SOLVENTS, HERETOFORE OFTEN ECONMICALLY NON-FEASIBLE. THE PROCESS IS ESPECIALLY USEFUL FOR PURIFYING POLYMERIC ALCOHOL XANTHATES, AND IN PARTICULAR ADVANTAGEOUSLY CAN BE EMPLOYED TO PROVIDE IMPROVED SOLID ALKALI CELLULOSE XANTHATE DIRECTLY FROM ALKALI CELLULOSE XANTHATE CRUMB.
Abstract:
A magnet positioning system for positioning magnets inside pipes includes a first stackable paddle that includes slots for accepting magnets and a second stackable paddle that includes a metal component for attracting the magnets and securing the magnets in the slots when the paddles are stacked together. Once stacked together, the paddles are inserted into position inside a pipe and the metal component is removed to release the magnets which move toward, and attach to, the inside wall of the pipe. A fluid conduit is positioned between the magnets using a spacer and a fixing agent permanently secures the magnets, fluid conduit, and spacer in place.
Abstract:
Provided is a method for manufacturing nanostructured layered double hydroxides (LDHs) having a uniform size distribution with homogenous nano-disc morphology. Disclosed method has three main steps of: pretreatment of metal wires; wire-explosion in a liquid phase; and finally, centrifugation and drying the as-prepared colloidal products to obtain the LDHs nanostructured dried powder.
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:
Provided is a method for manufacturing nanostructured layered double hydroxides (LDHs) having a uniform size distribution with homogenous nano-disc morphology. Disclosed method has three main steps of: pretreatment of metal wires; wire-explosion in a liquid phase; and finally, centrifugation and drying the as-prepared colloidal products to obtain the LDHs nanostructured dried powder.
Abstract:
Embodiments of the invention generally provide compositions of crystalline zeolite materials with tailored crystal habits and the methods for forming such crystalline zeolite materials. The methods for forming the crystalline zeolite materials include binding one or more zeolite growth modifiers (ZGMs) to the surface of a zeolite crystal, which results in the modification of crystal growth rates along different crystallographic directions, leading to the formation of zeolites having a tailored crystal habit. The improved properties enabled by the tailored crystal habit include a minimized crystal thickness, a shortened internal diffusion pathlength, and a greater step density as compared to a zeolite having the native crystal habit prepared by traditional processes. The tailored crystal habit provides the crystalline zeolite materials with an aspect ratio of about 4 or greater and crystal surfaces having a step density of about 25 steps/μm2 or greater.
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 shall mechanically connected to an external actuating device.
Abstract:
A coolant circuit (1) for a fuel cell system of a vehicle. Coolant (10) is able to flow through a coolant line (3) in the cooling operation, and an ion exchanger module (4) can be fluidically coupled with the coolant line (3). The coolant circuit (1) has at least one closing element (8), formed to close the coolant line (3). The closing of the same via the at least one closing element (8) is effected by an uncoupling of the ion exchanger module (4) from the at least one coolant line (3). Furthermore, the invention relates to a method to operate the coolant circuit (1).