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| Number | Title | Issue Date |
| 7354675 | Apparatus and method for maintaining compression of the active area in an electrochemical cell An electrochemical cell includes a first electrode, a second electrode, a proton exchange membrane disposed between and in intimate contact with the electrodes, and a pressure pad disposed in electrical communication with the first electrode. The pressure pad is an ... | 04/08/2008 |
| 7338587 | Electrochemical process for oxidation of alkanes to alkenes An electrochemical process for the oxidation of an alkane to at least one corresponding alkene uses an electrochemical cell having an anode chamber on one side of a proton conducting medium, and a cathode chamber on the other side of the said medium. The alkane is o... | 03/04/2008 |
| 7329470 | Apparatus and method for in situ production of fuel for a fuel cell Fuel cell fuel supplies having single and multiple compartments for storing and containing fuel cell fuel precursor reagents. These fuel supplies allow storage and packaging of precursors for in situ production and use of fuel cell fuel. A method for making fuel cel... | 02/12/2008 |
| 7314539 | Pressure electrolyzer and method for operating one such electrolyzer The invention discloses a pressure electrolyzer comprising a pressure vessel (2) and an electrolytic-cell block (3) arranged in the pressure vessel (2) and containing a plurality of electrolytic cells (4) combined in the form of a stack. ... | 01/01/2008 |
| 7291191 | Fuel cell cartridge filters and pressure relief Described herein is a portable storage device that stores a hydrogen fuel source. The storage device includes a bladder that contains the hydrogen fuel source and conforms to the volume of the hydrogen fuel source. A housing provides mechanical protection for the bl... | 11/06/2007 |
| 7285192 | Pressure electrolyzer and method for switching off a pressure electrolyzer A pressure electrolyzer having a pressure reservoir, an electrolytic cell block containing a number of electrolytic cells and positioned in the pressure reservoir, the electrolytic cells each containing anodes and cathodes, and an electrolyte circulatory system for ... | 10/23/2007 |
| 7270908 | Proton exchange membrane electrochemical cell system A compression member for an electrochemical cell stack is provided. The compression member includes a first surface including a plurality of raised portions, a second surface including a substantially flat surface, and an edge defined by the first surface and the se... | 09/18/2007 |
| 7261874 | Gas phase electrolyzer process for producing hydrogen The invention provides a method for a sulfur based hydrogen production cycle wherein the sulfur products are maintained in a gaseous state throughout the cycle. The cycle includes a decomposition of a gaseous phase sulfur trioxide to sulfur dioxide and water in a de... | 08/28/2007 |
| 7255961 | Thin film composite electrolyte The invention is a thin film composite solid (and a means for making such) suitable for use as an electrolyte, having a first layer of a dense, non-porous conductive material; a second layer of a porous ionic conductive material; and a third layer of a dense non-por... | 08/14/2007 |
| 7247230 | Electrochemical synthesis and processing of conducting polymers in supercritical media The present invention deals with the electrochemical synthesis of electrically conductive polymers in supercritical fluids, for example supercritical CO2. The use of the supercritical fluid as a solvent results in the reduction or elimination of hazardous... | 07/24/2007 |
| 7179363 | Electrolytic process for generating chlorine dioxide An electrolytic process for generating chlorine dioxide. An aqueous feed stream of an alkali metal chlorite solution is treated with chlorine gas or a mixture of hydrogen chloride and hypochlorous acid formed in an anode compartment from, an aqueous alkali metal chl... | 02/20/2007 |
| 7135131 | Proton conductive membrane and production method thereof A proton conductive membrane according to the invention includes layered clay mineral powder which is a cation exchanger or an anion exchanger, and a crosslinking structure including an —O—SO2—O— group which crosslinks particles of the layered cla... | 11/14/2006 |
| 7122261 | Metal hydride fuel storage and method thereof Disclosed herein is a metal hydride fuel storage cartridge having integrated resistive heaters that can be used in conjunction with fuel cells such as MEMS-based fuel cells. The cartridge is fabricated using micromachining methods and thin/thick film materials synth... | 10/17/2006 |
| 7105033 | Hydrogen gas generation system A system for generating hydrogen gas utilizes a volume exchange housing for the storage of a fuel material that reacts to generate hydrogen gas and a hydrogen separation chamber. The system includes a gas permeable membrane or membranes that allow hydrogen gas to pa... | 09/12/2006 |
| 7097813 | Hydrogen generating apparatus A hydrogen generating apparatus includes a chemical reaction chamber, a chemical solution reservoir, and an unpowered pressure producing member for moving a chemical solution from the chemical solution reservoir to the chemical reaction chamber. ... | 08/29/2006 |
| 7086236 | Method for operating a motor vehicle fuel tank system, especially a cryotank system and corresponding tank system; for example, for liquid hydrogen A method and system for venting accumulations of leakage from a vehicle cryo fuel tank system, whereby elements of the tank system like lines, valves and/or a storage container for the fuel are enveloped at least partially by a capsule, the interior of the capsule i... | 08/08/2006 |
| 7052593 | Process for the production of diaryl iodonium compounds The present invention provides an electrochemical method for producing diaryl iodonium compounds wherein application of an electric current to an electrochemical cell containing a reaction mixture composed of a solvent, an iodoaryl compound and an electrolyte forms ... | 05/30/2006 |
| 7037481 | Production of ultra pure salt This invention relates to methods and installations for producing ultra pure sodium chloride salt crystals primarily for use in saturating depleted brine resulting from the electrolytic decomposition of saturated brine in chlor alkali membrane cells for the producti... | 05/02/2006 |
| 6946104 | Chemical hydride hydrogen generation system and an energy system incorporating the same A chemical hydride hydrogen generation system and an energy system incorporating the same are provided. The hydrogen generation system comprises: a storage tank for storing a chemical hydride solution; a reactor containing a catalyst; a pump for supplying the chemic... | 09/20/2005 |
| 6942767 | Chemical reactor system A reactor comprising an inlet, an outlet, and a conically spiraling fluid flow channel coupled between the inlet and the outlet. The reactor may be an electrochemical reactor comprising a fluid flow channel that spirals about an axis, the fluid flow channel comprisi... | 09/13/2005 |
| 6926988 | Apparatus and method for maintaining compression of the active area in an electrochemical cell An electrochemical cell includes a first electrode, a second electrode, a proton exchange membrane disposed between and in intimate contact with the electrodes, and a pressure pad disposed in electrical communication with the first electrode. The pressure pad is com... | 08/09/2005 |
| 6846392 | Hydrophobic and hydrophilic membranes to vent trapped gases in a plating cell A plating tool cell anode for venting unwanted gases from a fluid plating solution. In a first embodiment, the solution is introduced into a chamber, defined by the plating tool cell (10), by fluid inlet (12) and contacts the anode (50). The flu... | 01/25/2005 |
| 6585881 | Process for manufacture and improved manganese dioxide for electrochemical cells A process for manufacture of manganese dioxide comprising subjecting an aqueous bath comprising manganese sulfate (MnSO4) and sulfuric acid (H2 SO4) to electrolysis in a closed cell wherein the electrolysis bath is maintai... | 07/01/2003 |
| 6544400 | Portable chemical hydrogen hydride system A hydrogen source system delivers a controlled fuel stream to applications, using wicking to control the contact between a mixture of NaBH4, NaOH and H2 O and a hydrolyzing catalyst to create a feedback mechanism to automatically mai... | 04/08/2003 |
| 6409908 | Electrochemical production of alkali metal from an alkali metal amalgam In a process for producing an alkali metal from alkali metal amalgam by electrolysis using an alkali metal amalgam as anode, a solid electrolyte which conducts alkali metal ions and a liquid alkali metal as cathode, the alkali metal amalgam as anode is ke... | 06/25/2002 |
| 6365032 | Method for operating a high pressure electrochemical cell The present invention relates to a unique electrochemical cell stack which employs an electrically conductive pressure pad. The pressure pad is composed of material compatible with the electrochemical cell environment and is disposed on the high pressure ... | 04/02/2002 |
| 6299781 | Removal of hydrocarbon components from an aqueous waste stream Water containing difficult-to-remove volatile hydrocarbon contaminants which may include MTBE, TBA and/or BTEX is treated under pressure by electrolysis and oxidative reduction in a contact area, then is depressurized and subjected to high shear in a mult... | 10/09/2001 |
| 6296755 | Electrochemical process for olefin recovery using transition metal dithiolene complexes A novel scheme for olefin recovery/separation based on the redox properties of metal dithiolene complexes is described. The complex, [1,2-bis(cyano)ethylene-1,2-dithiolato]nickel, [Ni(S2 C2 (CN)2)2 ], when gener... | 10/02/2001 |
| 6146518 | Pressure differential control in an electrolytic cell An improved process for providing hydrogen from an electrolytic cell having an anolyte solution having an anolyte liquid level; a catholyte solution having a catholyte liquid level; generating oxygen at an oxygen pressure above the anolyte level; generati... | 11/14/2000 |
| 5906722 | Method of converting amine hydrohalide into free amine Describes a method of electrochemically converting amine hydrohalide, e.g., ethyleneamine hydrochloride, into free amine, e.g., free ethyleneamine. A three compartment electrolytic cell is provided having (1) a catholyte compartment containing a cathode a... | 05/25/1999 |
| 5904829 | Method of converting amine hydrohalide into free amine Describes a method of electreochemically converting amine hydrohalide, e.g., amine hydrochloride, into free amine, e.g., free ethyleneamine. An electrolytic cell is provided having (1) a catholyte compartment containing a cathode assembly comprising a cat... | 05/18/1999 |
| 5900133 | Method of converting amine hydrohalide into free amine Describes a method of electrochemically converting amine hydrohalide, e.g., ethyleneamine hydrochloride, into free amine, e.g., free ethyleneamine. A three compartment electrolytic cell is provided having (1) a catholyte compartment containing a cathode a... | 05/04/1999 |
| 5326438 | Phthaladehyde tetraalkyl acetals, the preparation thereof and the use thereof as storage compounds Phthalaldehyde tetraalkyl acetals are prepared by electrochemical oxidation of substituted xylenes and used as stable compounds for storing phthalaldehydes.... | 07/05/1994 |
| 5290405 | NaOH production from ceramic electrolytic cell A electrolytic cell for efficiently producing caustic from sodium salts via use of a thin membrane of ceramic or ceramic composite electrolyte is disclosed. Ceramic electrolytes having a very mobile sodium ion such as NASICON are very effective in cells p... | 03/01/1994 |
| 5279717 | Process for removing chlorate salt from aqueous alkali chloride solution The invention relates to processes for removing chlorate salts from an aqueous alkali chloride solution employed in cation-exchange membrane electrolysis, comprising the steps of adding hydrochloric acid to an aqueous alkali chloride solution to form a re... | 01/18/1994 |
| 5198079 | Construction and way of operation of a gas diffusion electrode for the electrochemical discovery of materials from aqueous solutions An easy-to-disassemble vertical gas diffusion electrode, assembly of sandwich type construction is provided with a gas feed tube to the highest point and a discharge line from the lowest point of the electrode and is operated with its gas chamber held und... | 03/30/1993 |
| 5106465 | Electrochemical process for producing chlorine dioxide solutions from chlorites A process for electrolytically producing an aqueous solution of chlorine dioxide in an electrolytic cell having an anode compartment, a cathode compartment, and at least one ion exchange compartment between the anode compartment and the cathode compartmen... | 04/21/1992 |
| 5041196 | Electrochemical method for producing chlorine dioxide solutions An electrochemical process and electrolytic cell for manufacturing chlorine-free chlorine dioxide from dilute alkali metal chlorite solutions in a single step is disclosed. The electrolytic cell uses a porous flow-through anode and a cathode separated by ... | 08/20/1991 |
| 5035777 | Preparation of alkanesulfonyl halides and alkanesulfonic acids A continuous method is provided for preparing alkanesulfonyl halides, particularly chlorides and alkanesulfonic acids in high yields without the formation of undesirable side-products, and without the net production of hydrogen chloride as a by-product. T... | 07/30/1991 |
| 5026460 | Process for the preparation of unsaturated halogenated hydrocabons Process for the preparation of unsaturated halogenated hydrocarbons of the formula R1 --CR2 .dbd.CR2 --R2 in which R1 and R2 independently of one another are hydrogen, chlorine or fluorine, ... | 06/25/1991 |
