613results about "Organic diaphragms" patented technology

An exothermic reaction and an endothermic reaction are thermally combined in a reactor having at least one oxygen selective ion transport membrane that provides the exothermic reaction with oxygen from an oxygen-containing gas such as air. The thermal requirements of the endothermic reaction are satisfied by the exothermic reaction. Dependent on the reactor design employed, the exothermic and endothermic reactions may be gaseously combined.

An ion conducting polymeric composition mixture comprises a copolymer of styrene and vinylbenzyl-Rs. Rs is selected from the group consisting of imidazoliums, pyridiniums, pyrazoliums, pyrrolidiniums, pyrroliums, pyrimidiums, piperidiniums, indoliums, and triaziniums. The composition contains 10%-90% by weight of vinylbenzyl-Rs. The composition can further comprise a polyolefin comprising substituted polyolefins, a polymer comprising cyclic amine groups, a polymer comprising at least one of a phenylene group and a phenyl group, a polyamide, and / or the reaction product of a constituent having two carbon-carbon double bonds. The composition can be in the form of a membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.

An ion conducting polymeric composition mixture comprises a copolymer of styrene and vinylbenzyl-Rs. Rs is selected from the group consisting of imidazoliums and pyridiniums. The composition contains 10%-90% by weight of vinylbenzyl-Rs. The composition can further comprise a polyolefin comprising substituted polyolefins, a polymer comprising cyclic amine groups, a polymer comprising at least one of a phenylene group and a phenyl group, a polyamide, and / or the reaction product of a constituent having two carbon-carbon double bonds. The composition can be in the form of a membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.

An anion-conducting polymeric membrane comprises a terpolymer of styrene, vinylbenzyl-Rs and vinylbenzyl-Rx. Rs is a positively charged cyclic amine group. Rx is at least one constituent selected from the group consisting Cl, OH and a reaction product between an OH or Cl and a species other than a simple amine or a cyclic amine. The total weight of the vinylbenzyl-Rx groups is greater than 0.3% of the total weight of the membrane. In a preferred embodiment, the membrane is a Helper Membrane that increases the faradaic efficiency of an electrochemical cell into which the membrane is incorporated, and also allows product formation at lower voltages than in cells without the Helper Membrane.

The present invention provides system, method and apparatus for creating an electric glow discharge that includes a first and second electrically conductive screens having substantially equidistant a gap between them, one or more insulators attached to the electrically conductive screens, and a non-conductive granular material disposed within the gap. The electric glow discharge is created whenever: (a) the first electrically conductive screen is connected to an electrical power source such that it is a cathode, the second electrically conductive screen is connected to the electrical power supply such that it is an anode, and the electrically conductive fluid is introduced into the gap, or (b) both electrically conductive screens are connected to the electrical power supply such they are the cathode, and the electrically conductive fluid is introduced between both electrically conductive screens and an external anode connected to the electrical power supply.

The invention relates to the technical field of ionic membranes, and particularly relates to an ionic conductive membrane for a chlorine-alkali industry and a preparation method thereof. The ionic conductive membrane comprises a perfluorinated ion exchange resin base membrane, a micro-porous reinforcing material and a surface layer of a perfluorinated ion exchange resin microparticle. The perfluorinated ion exchange resin microparticle is a mixture of one or two of a perfluorinated carboxylic acid resin microparticle or perfluorinated sulfonic acid-carboxylic acid copolymer resin microparticle and a perfluorinated sulfonic acid resin microparticle, wherein the perfluorinated sulfonic acid resin microparticle accounts for 95%-50% of the percentage by mass of the mixture. The surface layer of the ionic conductive membrane has good compatibility and adhesion and maintains a good degassing effect in the whole service life of the ionic conductive membrane. An alkali metal chloride solution of which the range of concentration is wide can be efficiently and stably treated by the ionic conductive membrane in the chlorine-alkali industry, and the ionic conductive membrane is applicable for running in a zero-pole electrolytic cell under a novel high current density condition and a very excellent product purity index is achieved. The invention also provides a preparation method of the ionic conductive membrane, the process is simple and reasonable and industrial production is easily achieved.