| Patents for C25B 1 - Electrolytic production of inorganic compounds or non-metals (13,948) |
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| 02/12/1991 | US4992147 Electrochemical process for producing hydrosulfite solutions |
| 02/12/1991 | CA1279976C Production of pure mgc12 solution suitable for the production of magnesium metal from an impure magnesite ore or concentrate |
| 02/11/1991 | CA2023031A1 Asbestos fiber diaphragm improvement method, association of said diaphragm with a cathodic element, and method of production therefor |
| 02/07/1991 | WO1991001391A1 Production of metal borohydrides and organic onium borohydrides |
| 01/30/1991 | CN1048899A Cathode for producing hydrogen peroxide and ammonium persulfate by electrolysis |
| 01/23/1991 | EP0409792A1 Process for the simultaneous recovery of manganese dioxide and zinc |
| 01/23/1991 | EP0409420A1 Hybrid chromium recovery |
| 01/23/1991 | CN2069863U Chlorine dioxide codisinfectant generator |
| 01/23/1991 | CN1048732A 电极 Electrode |
| 01/22/1991 | US4986887 Electrolytic cell, palladium cathode, lithium salt electrolyte, electrolysis of water |
| 01/22/1991 | CA1279291C Low oxygen overpotential electrode |
| 01/21/1991 | CA2021181A1 Process for the simultaneous recovery of manganese dioxide and zinc |
| 01/20/1991 | CA2017196A1 Hybrid chromium recovery process |
| 01/16/1991 | CN1011247B Rare-earth hexaboronide synthesized by melted salt electrolysis technique |
| 01/12/1991 | WO1991001036A1 Energy source system |
| 01/12/1991 | CA2062977A1 Energy source system |
| 01/08/1991 | US4983264 Four layer cation exchange fluoropolymer membrane |
| 01/08/1991 | CA1278774C Electrolysis system for the production of peroxy compounds |
| 01/02/1991 | EP0405288A1 Process and device for obtaining pure oxygen |
| 01/01/1991 | US4981573 Process for the production of alkali dichromates and chromic acid employing an anode of valve metal activated by electrodepositing noble metals from melts |
| 01/01/1991 | US4981563 Electrolysis cell and method of producing chlorine |
| 12/25/1990 | US4980134 Leaching process |
| 12/19/1990 | EP0402909A1 Gaskets for filter press type cells |
| 12/19/1990 | EP0400057A4 Preparation of superconducting oxides by electrochemical oxidation: anodic superconductors |
| 12/19/1990 | CN1047893A Electrode structure for electrolytic cell |
| 12/19/1990 | CN1010860B Method for recovering current efficiency |
| 12/19/1990 | CN1010859B Electrolysis process and equipment for producing standard hydrogen sulphide |
| 12/18/1990 | US4978433 Electrolytic decomposition of thiosulfate solutions, precipitation of silver sullfide |
| 12/14/1990 | CA2018857A1 Gaskets for filter press type cells |
| 12/13/1990 | WO1990014885A1 Granulated inorganic sorbent and method of obtaining it |
| 12/12/1990 | EP0381722A4 Process and apparatus for the production of fuel gas and the enhanced release of thermal energy from such gas |
| 12/12/1990 | CN1047708A Process of fibrous electrolytic manganese dioxide and device thereof and special electrodes |
| 12/12/1990 | CA2005641A1 Methods and systems for generating and collecting fusion fuel material |
| 12/11/1990 | US4976835 Electrosynthesis of sodium dithionite |
| 12/11/1990 | US4976832 Method for making arsenic acid |
| 12/11/1990 | US4976831 Process for making a polymer-modified electrode and process using same for chloralkali electrolysis |
| 12/05/1990 | EP0400712A1 Frame for electrolyzer of the filter-press type and electrolyzers of the filter-press type |
| 12/05/1990 | EP0400057A1 Preparation of superconducting oxides by electrochemical oxidation: anodic superconductors |
| 12/04/1990 | US4975259 Method of liquefying and condensing nitrogen trifluoride and a method of purifying nitrogen trifluoride |
| 12/04/1990 | US4975171 Bipolar electrolytic cell |
| 12/04/1990 | US4975161 Electrodes for use in electrochemical processes and method for preparing the same |
| 11/29/1990 | CA2017496A1 Frame for filter-press type electrolyzes and such an electrolyzes |
| 11/28/1990 | EP0399993A1 Process for the step-wise membrane electrolysis of alkali-sulfate-containing aqueous solutions and plant for carrying out the process |
| 11/21/1990 | CN2066031U Air-pressure balance sensor in oxygen-making machine |
| 11/21/1990 | CN1047117A Electrotysis film formulation for producing composite oridizer by electrolizing table salt |
| 11/21/1990 | CN1047116A Anode compounding of composite oxidizer (clo2) electrolysis generator and sintering technology |
| 11/20/1990 | US4971666 Electrolysis, redox reactions |
| 11/20/1990 | US4971663 Electrolysis of cryogenic electrolytes for semiconductors or electronics |
| 11/20/1990 | CA1276584C Solid compounds based on superoxides exhibiting high ion conductivity, theirmanufacture, and related electrochemical uses |
| 11/13/1990 | US4969982 Method for producing an alkali metal hydroxide and electrolytic cell useful for the method |
| 11/13/1990 | US4969981 Cell and method of operating a liquid-gas electrochemical cell |
| 11/07/1990 | EP0396252A1 Electrolytic regeneration of alkaline permanganate etching bath |
| 11/06/1990 | US4968394 Neutralization or ion exchange |
| 11/05/1990 | CA2013123A1 Electrolytic regeneration of alkaline permanganate etching bath |
| 11/03/1990 | WO1990013923A1 Conductive components containing conductive metal oxide |
| 11/03/1990 | CA2051441A1 Conductive components containing conductive metal oxide |
| 11/01/1990 | WO1990012903A1 Electrode structure for an electrolytic cell |
| 10/31/1990 | CN1046510A Method for refining saline using witherite mineral powder |
| 10/24/1990 | EP0393897A1 Process for the manufacture of electronic and optical devices |
| 10/24/1990 | CN2064366U Double cathode sodium hypochlorite producer |
| 10/24/1990 | CN1046358A Non-organic/ polymer fiber composite, method of making same and use including dimensionally stable separator |
| 10/23/1990 | US4964960 Carboxyl/sulfonyl copolymer membrane; electrolysis efficiency |
| 10/20/1990 | CA2012435A1 Halogen generation |
| 10/17/1990 | EP0391924A1 Hypobromination of water. |
| 10/16/1990 | US4963241 Electrolytic cell with recirculation means |
| 10/16/1990 | US4963235 Process for treating electrolytic cell products |
| 10/10/1990 | EP0391192A2 Electrolytic process for manufacturing alkali dichromates and chromic acid |
| 10/10/1990 | CN2063524U Sodium hypochlorite generator |
| 10/09/1990 | US4961909 Process for the manufacture of copper arsenate |
| 10/09/1990 | CA1275070A1 Monopolar and bipolar electrolyzer and electrodic structure thereof |
| 10/06/1990 | CA2013782A1 Process for the preparation of alkali metal dichromates and chromic acids by electrolysis |
| 10/04/1990 | WO1990011388A1 Conversion of manganate to permanganate |
| 10/02/1990 | CA1274801A1 Method of stabilizing metal-silica complexes in alkali metal halide brines |
| 09/26/1990 | EP0389263A1 Electrochemical hydrogen separator system for zero gravity water electrolysis |
| 09/26/1990 | EP0388670A2 Cation exchange reinforced membrane and process |
| 09/20/1990 | WO1990010734A1 A submerged electrolytic cell pool purifier |
| 09/18/1990 | US4957610 Generation of hydrogen and oxygen |
| 09/11/1990 | US4956061 Electroconductive catalytic material bonding to membranes |
| 09/11/1990 | CA1273899A2 Reinforced polymer membrane for electrolysis with sacrificial reinforcement elements on one surface |
| 09/11/1990 | CA1273893A1 Method for electrolyzing cerous sulfate |
| 09/05/1990 | EP0385427A2 Cation exchange membrane reinforced with a cation exchange fabric |
| 08/31/1990 | CA2010844A1 Cation exchange reinforced membrane and process |
| 08/31/1990 | CA2010843A1 Cation exchange membrane reinforced with a cation exchange fabric |
| 08/29/1990 | EP0384860A1 Process for destroying hypochlorites in a chlorate solution |
| 08/29/1990 | EP0384194A2 Dimensionally stable anodes and their use in the production of alkalidichromates and chromic acid |
| 08/29/1990 | CN2061177U 电解二氧化氯发生器 Electrolytic Chlorine dioxide generator |
| 08/28/1990 | US4952298 Computer control |
| 08/28/1990 | CA1273315A1 Process for producing potassium hydroxide |
| 08/23/1990 | WO1990009685A1 Electrolyte for galvanic cells for producing gases and its use |
| 08/23/1990 | DE4000811A1 Elektrolyt fuer galvanische zellen fuer die erzeugung von gasen und seine verwendung An electrolyte for electrolytic cells for the generation of gases and its use |
| 08/22/1990 | EP0383243A2 Electrolyser for chlor-alkali electrolysis, and anode |
| 08/22/1990 | CN1044831A Improved eletrolyzer and anode |
| 08/22/1990 | CN1044830A Production of chloric acid |
| 08/22/1990 | CA2010428A1 Process for removing hypochlorites in a chlorate solution |
| 08/21/1990 | US4950371 Electrochemical hydrogen separator system for zero gravity water electrolysis |
| 08/21/1990 | US4950370 Electrolytic gas generator |
| 08/18/1990 | CA2010221A1 Dimensionally stable anodes and their use in the preparation of alkali metal dichromates and chromic acid |
| 08/16/1990 | EP0382284A1 Process for manufacturing on alkali metal-sulfide |
| 08/16/1990 | EP0381722A1 Process and apparatus for the production of fuel gas and the enhanced release of thermal energy from such gas |
| 08/14/1990 | US4948477 For the production of oxygen using hydrogen reducible lunar minerals, ilmenite and agglutinates |