Patents for C25B 13 - Diaphragms; Spacing elements (2,681)
03/2002
03/12/2002US6355166 Magnetically enhanced composite materials and methods for making and using the same
03/12/2002US6355149 Method for producing a membrane used to operate fuel cells and electrolyzers
02/2002
02/21/2002US20020022123 Fuel cell comprising a composite membrane
02/13/2002EP1015665B1 Electrolysis device
02/07/2002US20020014417 Electrochemical cell for the oxidation of organic compounds, and electrocatalytic oxidation process
02/06/2002EP1177332A1 Method and device for obtaining hydrogen
01/2002
01/31/2002WO2002008492A1 Process and method for recovery of halogens
01/31/2002US20020011684 Formed by treating porous membrane having thickness of at most one mil with ionomer so that membrane is fully impregnated with ionomer in membrane's cross section; ion exchange membranes for fuel cells
01/31/2002CA2416653A1 Process and method for recovery of halogens
01/30/2002EP1175254A1 Step-by-step alkylation of polymeric amines
01/17/2002WO2002005370A1 Hybrid material, use of said hybrid material and method for making same
01/16/2002EP1171384A2 Proton conducting membrane using a solid acid
01/09/2002CN1077609C Regeneration of plastic diaphragms
01/03/2002WO2002000773A2 Polymers and polymer membranes covalently cross-linked by sulphinate alkylation
01/03/2002US20020002240 Cross-linked sulphonated polymers and method for preparing same
01/03/2002US20020000385 Hydrogen and oxygen electrodes with an electrolyte membrane between and a tank with two fluid storage sections separated by a movable divider
01/03/2002CA2379962A1 Polymers and polymer membranes covalently cross-linked by sulphinate alkylation
01/01/2002CA2222618C Gradient interface composites and methods therefor
12/2001
12/26/2001CN1076880C Modified cation exchange membrane for electrochemical cells and method for preparation of same membrane
12/20/2001WO2001070857A3 Ion-exchange materials
12/20/2001DE10119285A1 Verfahren zum Betreiben einer Chlor-Alkali-Elektrolysezelle A method of operating a chlor-alkali electrolytic cell
12/06/2001DE10119287A1 Verfahren zur Herstellung eines Diaphragmas für Elektrolysezellen Process for the preparation of a diaphragm for electrolysis cells
12/06/2001DE10026941A1 Partial electrochemical oxidation of organic compounds, useful e.g. for acrolein production, uses anode comprising conductive material and mixed metal oxide
12/06/2001DE10026940A1 Elektrochemische Zelle zur Oxidation organischer Verbindungen und elektrokatalytischer Oxidationsprozess An electrochemical cell to oxidize organic compounds and electrocatalytic oxidation process
12/05/2001EP1160357A1 Electrochemical cell for the oxidation of organic compounds and electrocatalytic oxidation process
11/2001
11/28/2001EP1156869A1 Separation method and device with semi-permeable membranes comprising sulphonated polyimides
11/28/2001EP0841991B1 Method for preparing diaphragm for use in chlor-alkali cells
11/08/2001WO2001084657A2 Polymer membranes
11/08/2001US20010038937 Solid polymer electrolyte having high-durability
11/08/2001DE10021106A1 Polymere Membranen Polymeric membranes
11/06/2001US6312757 Weldings for the assembling of the cathode walls are free from internal stresses.
11/06/2001US6312572 Electrolyzer
10/2001
10/31/2001DE10019732A1 Acid base polymer membrane for use as fuel cells membrane for e.g. hydrogen or direct methanol fuel cells, comprises at least one polymeric acid or polymer base with specified proton conductivity
10/31/2001CN2457174Y Single pole type ion film electrolytic bath
10/25/2001CA2405027A1 Separation of micromolecules
10/24/2001CN1073645C Composite membrane for chemical synthesis and reactor and method using the same
10/18/2001WO2000045447A9 Proton conducting membrane using a solid acid
10/11/2001DE10015360A1 Separator unit used for electrolysis cells and fuel cells consists of two embossed plates, one surface having a positive channel structure and the other surface having a corresponding negative channel structure
10/10/2001EP1142044A1 Membrane suitable for electrochemical cells
10/09/2001US6299939 Method of preparing a diaphragm for an electrolytic cell
10/04/2001US20010026893 Excellent stability and performance when used in a proton-exchange membrane fuel cell or for electrolysis of water
10/04/2001US20010025798 Continuous electrolysis of tetramethylammonium salt in cell with cation-exchange membrane under stationary conditions by introduction of concentrated solution into anode electrolysis loop, water into cathode loop; pH stability
10/02/2001US6296745 Adding alkali metal polyphosphate and water insoluble inorganic particles; withdrawal of hydrogen from aqueous alkali metal hydroxide solution from catholyte; chlorine from anolyte
10/02/2001US6296686 Ceramic membrane for endothermic reactions
09/2001
09/27/2001WO2001071064A1 Ion conducting ceramic membrane and surface treatment
09/27/2001WO2001070857A2 Ion-exchange materials
09/27/2001CA2403459A1 Ion conducting ceramic membrane and surface treatment
09/27/2001CA2402838A1 Ion-exchange materials
09/12/2001CN1312400A Synthesizing of tetramethylammonium
09/06/2001DE10107324A1 Electrolyte membrane comprises surface-treated, block-polymerizable membrane onto which side chain polymer with subsequently-introduced proton-conducting groups is block polymerized
09/04/2001CA2063353C Fluorine-containing cation exchange membrane for electrolysis
08/2001
08/30/2001US20010017188 Joining an ion exchange membrane (IEM) to a frame of dissimilar polymer by coating the border of an IEM with a water miscible solvent solution of frame-compatible polymer and joining the coated IEM to the frame
08/16/2001WO2001058576A1 Graft polymeric membranes and ion-exchange membranes formed therefrom
08/07/2001USRE37307 An expanded polytetrafluoroethylene membrane having a porous microstructure of polumeric fibrils and a ino exchange material that impregnates the membrane to render a interior volume occlusive
07/2001
07/25/2001EP1118589A2 Method and system for on-site halogen treatment of aqueous solutions
07/25/2001EP1118585A2 Electrolytic process and apparatus for the controlled oxidation or reduction of inorganic and organic species in aqueous solutions
07/24/2001US6264857 Used as coatings which are in electrochemical cells, e.g. fuel cells, secondary batteries and electrochromic displays
07/24/2001US6264811 Ion conducting ceramic membrane and surface treatment
07/24/2001CA2231171C Bonded non-asbestos chlor-alkali diaphragm
07/19/2001DE10101494A1 Tetramethylammoniumhydroxid-Synthese Tetramethylammonium synthesis
07/18/2001EP1115908A1 Natural gas-assisted steam electrolyzer
07/12/2001WO2001049902A1 Asbestos-free diaphragm, comprising non-fibrous mineral particles, combination comprising same, method for obtaining same and use thereof
07/12/2001CA2396047A1 Asbestos-free diaphragm, comprising non-fibrous mineral particles, combination comprising same, method for obtaining same and use thereof
07/03/2001US6254978 Ultra-thin integral composite membrane
06/2001
06/21/2001WO2001045192A1 Low gravity electrochemical cell
06/21/2001CA2394499A1 Low gravity electrochemical cell
05/2001
05/31/2001DE19956787A1 Elektrolyseplatte Electrolysis plate
05/30/2001EP1103636A1 Electrolytic cell plate
05/30/2001EP1066656A4 Ion conductive matrixes and their use
05/29/2001US6238534 Hybrid membrane electrode assembly
05/02/2001EP1095174A1 Screen assembly for an electrochemical cell
05/01/2001CA2223858C Method for preparing diaphragm for use in chlor-alkali cells
04/2001
04/12/2001WO2000045447A8 Proton conducting membrane using a solid acid
04/10/2001US6214488 Polymer electrolyte membrane and process for the production thereof
03/2001
03/27/2001US6207313 Magnetic composites and methods for improved electrolysis
03/22/2001WO2001019896A1 Composite ion-exchange membranes
03/20/2001CA2214122C Composite membrane
03/13/2001US6200435 Ion exchange membrane electrolyzer
03/07/2001EP1080509A1 Bipolar plates for electrochemical cells
03/06/2001CA2234552C Composite inorganic-polymer thin film cation-selective membrane, method of fabricating same and applications
03/01/2001DE19919708A1 Stufenweise Alkylierung von polymeren Aminen Stepwise alkylation of polymeric amines
02/2001
02/27/2001US6194623 Hydrogenation of organic compounds with the use of the NEMCA effect
02/27/2001US6194338 Stabilized bimetal catalyst comprising electrically conductive support and non-continuous metallic deposited coating comprising platinum or silver and a second metal which is platinum, silver, gold, ruthenium, iridium, rhodium, osmium
01/2001
01/23/2001US6176984 High temperature polybenzazole and polyether electrolytes
01/17/2001CN1060823C Process for contineous producing nickel hydroxide
01/10/2001EP1066656A1 Ion conductive matrixes and their use
01/10/2001EP1066417A1 Method and device for obtaining synthesis gas
01/04/2001WO2001001506A1 High temperature polybenzazole and polyether electrolytes
12/2000
12/21/2000WO2000076621A1 Magnetically enhanced composite materials and methods for making and using the same
11/2000
11/28/2000US6153163 Providing ion transport reactor; delivering oxygen-donating first feed stream; heating; transporting elemental oxygen obtained from first feed stream through product oxygen-selective ion transport membrane to react with feed
11/23/2000WO2000070700A1 Hybrid membrane electrode assemblies
11/23/2000CA2372601A1 Hybrid membrane electrode assemblies
11/21/2000US6149810 Membrane with supported internal passages
11/16/2000WO2000045447A3 Proton conducting membrane using a solid acid
11/09/2000WO2000066652A1 Membranes, membrane electrode assemblies and fuel cells employing same, and process for preparing
11/09/2000WO2000066254A1 Step-by-step alkylation of polymeric amines
11/09/2000CA2371967A1 Step-by-step alkylation of polymeric amines
11/02/2000WO2000065129A1 Method and device for obtaining hydrogen
11/02/2000CA2371170A1 Method and device for obtaining hydrogen
10/2000
10/31/2000US6139810 Tube and shell reactor with oxygen selective ion transport ceramic reaction tubes
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