FAITA GIUSEPPE (Total 199 Patents Found)

Electrolyzer for the electrolysis of a solution of a salt for the production of a solution containing an acid and a solution of a base, said electrolyzer comprising at least one elementary cell divided into three compartments by two cation-exchange membranes, the first of said compartments contains the first of said me...
L'invention concerne une cellule d'électrolyse comprenant un électrolyte liquide et au moins une électrode de diffusion (9) de gaz dotée d'une surface en contact avec ledit électrolyte liquide (10) et d'une surface opposée connectée à au moins deux chambres de gaz (13), lesdites chambres étant ...
The invention describes a method and the relevant devices for permitting an operation stable with time of a stack of membrane fuel cells fed with air and a gas containing hydrogen and at least 100 ppm of carbon monoxide, characterised in that it provides for an oxidising condition at the anodes of said cells in a self-...
本发明描述了一种新的离聚物燃料电池堆设计,其包含多个不锈钢双极板,电极,膜和封闭在压缩板之间的周边密封衬垫。新的设计旨在避免膜内的金属离子增加,以及随之发生的电压衰减;为了这个目的,就要避免冷却液体内所包含的金属...
The invention is relative to an electrode for gas evolution in electrolytic and electrometallurgical industrial applications, made of a metal substrate having a surface morphology characterised by a combination of micro-roughness and macro-roughness which favours high adherence of a superficial catalytic layer in order...
A membrane fuel cell delimited by bipolar plates comprising a cathodic compartment and an anodic compartment, said cathodic compartment comprising means for feeding air from the bottom to the top, said anodic compartment comprising means for feeding a hydrogen-containing fuel from the top to the bottom, at least one of...
The invention relates to an electrolytic cell (1) subdivided into two compartments by a cation-exchange membrane (2), the cathodic compartment (3) containing an oxygen- diffusion cathode (5) contacting the membrane through a catalysed hydrophilic porous layer and the anodic compartment (4) comprising one anode (6) prov...
@ A process for the purification of mercury from the metal impurities contained therein, wherein the mercury is contacted with an aqueous solution, characterized in that the mercury and the aqueous solution are loaded into reactor (1) in the upper part (2) of which there is present a gas. The mercury and the aqueous so...
A membrane electrochemical cell, in particular a fuel cell, of an improved type comprising a multiplicity of cell elements, each element made up of bipolar plates, current collectors, electrodes and membranes, wherein the function of electric current transmission through the cell elements, the release of heat towards t...
The present invention relates to an electrochemical process for deoxygenating deionized water utilizing a membrane electrolyzer and optionally a catalytic reactor, characterized in that operation is carried out at ambient temperature avoiding the need for the addition of substances, dangerous for the health of the oper...
L'invention concerne une pile à combustible à membrane pouvant fonctionner de manière stable à forte densité de courant dans des conditions d'alimentation de gaz réactif sec et de pression quasi atmosphérique. Pour ce faire, on emploie des distributeurs de gaz poreux internes, p. ex. matières tridimensi...
Electrolyzer comprising at least one elementary cell divided into electrolyte compartments by cation-exchange membranes, said compartments are provided with a circuit for feeding electrolytic solutions and a circuit for withdrawing electrolysis products, said cell is equipped with a cathode and a hydrogen-depolarized a...
The invention describes a method for the direct connection of fuel cells to electrolyzers (2) of electrochemical plants producing hydrogen as a by-product. The by-product hydrogen is fed to the fuel cells and the electric energy thereby produced is transferred to the electrolyzers (2) - rectifiers (3), with the consequ...
The present invention describes a membrane fuel cell capable of operating in a stable fashion at high currently density under dry reactant gas feed at near-atmospheric pressure. This result is obtained by employing internal porous gas distributors, such as three-dimensional reticulated materials, sintered materials, ju...
The improved method for the production of chlorine from aqueous solutions of hydrochloric acid in a membrane electrolysis cell comprises a cathode compartment equipped with a gas diffusion cathode fed with air or enriched air or oxygen and an anodic compartment with an anode provided with an electrocatalytic coating fo...
La présente invention concerne un électrolyseur permettant l'extraction électrolytique de métaux non ferreux et comprenant une pluralité de cellules élémentaires intercalées, chaque cellule élémentaire étant équipée d'un dispositif conçu pour la détection d'anomalies dans la distribution de c...
The present invention describes a membrane fuel cell capable of operating in a stable fashion at high currently density under dry reactant gas feed at near-atmospheric pressure. This result is obtained by employing internal porous gas distributors, such as three-dimensional reticulated materials, sintered materials, ju...
The invention relates to a cell for metal electrowinning equipped with a device useful for preventing the adverse effects of dendrite growth on the cathodic deposit. The cell comprises a porous conductive screen, positioned between the anode and the cathode, capable of stopping the growth of dendrites and preventing th...
Eléctrolyseur comportant au moins une cellule élémentaire équipée d'un nouvel ensemble d'anodes dépolarisées par hydrogène, et procédé associé servant à produire la base et l'acide de base d'un sel par l'électrolyse de solutions contenant ledit sel. Ledit ensemble comporte une membrane ...
L'invention concerne un procédé permettant d'arrêter le fonctionnement de piles électrolytiques équipées de cathodes de diffusion de gaz, ce qui permet de protéger le catalyseur cathodique des phénomènes de corrosion. Le procédé consiste à envoyer dans le compartiment cathodique un mélange dilué d...
A membrane electrochemical cell, in particular a fuel cell, of an improved type comprising a multiplicity of cell elements, each element made up of bipolar plates (1), current collectors (14), electrodes (7) and membranes (6), wherein the function of electric current transmission through the cell elements, the release ...
A membrane electrochemical cell, in particular a fuel cell, of an improved type comprising a multiplicity of cell elements, each element made up of bipolar plates, current collectors, electrodes and membranes, wherein the function of electric current transmission through the cell elements, the release of heat towards t...
The invention describes a new design of ionomer membrane fuel cell stack comprising a multiplicity of stainless steel bipolar plates, electrodes, membranes and perimetrical sealing gaskets enclosed between compression plates. The novel design is directed to prevent the build up of metal ions in the membranes and the co...
ABSTRACT OF THE DISCLOSURE-A method for passivating the surface of the strippers of the urea manufacturing plants, where the tem-peratures are very high, where the pressures range from 120 to 240 Kg/cm2 and where the effluent process flow from the synthesis reactor undergoes one or more falling-film evapo-rations, pref...
The invention is relative to an electrode for gas evolution in electrolytic and electrometallurgical industrial applications, made of a metal substrate having a surface morphology characterised by a combination of micro-roughness and macro-roughness which favours high adherence of a superficial catalytic layer in order...
Flexible ground anode prepacked with backfill for protection of a cathode with impressed currents, made up by a flexible anodic conductor (1), surrounded by backfill and coaxially centered as to the flexible external casing (2) by means of spacers (3), which function also as current distributors to the casing itself, a...
L'invention concerne une cellule électrolytique subdivisée en deux compartiments par une membrane échangeuse de cations, le compartiment cathodique contenant une cathode de diffusion d'oxygène en contact avec la membrane par l'intermédiaire d'une couche poreuse hydrophile catalysée et le compartim...
The invention relates to a cell for metal electrowinning equipped with a device useful for preventing the adverse effects of dendrite growth on the cathodic deposit. The cell comprises a porous conductive screen, positioned between the anode and the cathode, capable of stopping the growth of dendrites and preventing th...
A membrane electrolysis cell is described, comprising one anodic compartment (2) and one cathodic compartment (7), wherein at least one of the two compartments contains a gas diffusion electrode (10) and a planar porous element (9) is interposed between the membrane (16) and the gas diffusion electrode (10). A flow of ...
<P>La présente invention concerne un Electrolyseur pour des procédés électrochimiques pour la production de produits gazeux, comprenant une pluralité de cellules élémentaires, chaque cellule élémentaire étant divisée, par une membrane d'échange d'ions ou un diaphragme poreux, en deux compartim...
EL METODO MEJORADO PARA LA PRODUCCION DE CLORO A PARTIR DE SOLUCIONES ACUOSAS DE ACIDO HIDROCLORICO EN UNA PILA DE ELECTROLISIS DE MEMBRANA COMPRENDE UN COMPARTIMIENTO DE CATODO EQUIPADO CON UN CATODO DE DIFUSION DE GAS ALIMENTADO CON AIRE O AIRE ENRIQUECIDO U OXIGENO Y UN COMPARTIMIENTO ANODICO CON UN ANODO PROVISTO C...