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公开(公告)号：WO2007071713A1
公开(公告)日：2007-06-28
申请号：PCT/EP2006/069982
申请日：2006-12-20
Applicant: INDUSTRIE DE NORA S.p.A. , SALI, Stefano , GUARNUCCIO, Riccardo , OLDANI, Dario , CARRETTIN, Leonello , ROSSI, Paolo
Inventor： SALI, Stefano , GUARNUCCIO, Riccardo , OLDANI, Dario , CARRETTIN, Leonello , ROSSI, Paolo
Abstract: The invention relates to an electrolytic cell of vertical cylindrical design provided with a coaxial central anode and tangentially oriented inlet and outlet nozzles in order to establish a spiral upward electrolyte flow particularly suitable for the deposition of metals starting from solutions of medium-low concentration. The cell is of the type equipped with an elastic sleeve mechanically forced into the cathode body: the metal is deposited on the sleeve which at the end of the electrolysis can be extracted from the cathode body together with the deposit. The anode consists of a thin-walled metal tube containing an internal metal rod welded thereto and further equipped with a protecting net of plastic material, said anode and said net being respectively directed to prevent the dendrite growth and the possible deformation of the elastic sheet from causing short-circuits. In one preferred embodiment, the internal metal rod of the anode has a length lower than the thin-walled tube.
Abstract translation: 本发明涉及一种具有垂直圆柱形设计的电解池，其具有同轴中心阳极和切向定向的入口和出口喷嘴，以便建立特别适合从中低浓度溶液开始沉积金属的螺旋向上电解液。 电池是配备有机械强制进入阴极体的弹性套筒的类型：金属沉积在套管上，电解结束时可以与沉积物一起从阴极体中提取。 阳极由包含焊接在其上的内部金属棒的薄壁金属管组成，并且还配备有塑料材料的保护网，所述阳极和所述网分别被引导以防止树枝状生长和弹性片的可能变形 造成短路。 在一个优选实施例中，阳极的内部金属棒的长度低于薄壁管。
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公开(公告)号：WO2005040457A2
公开(公告)日：2005-05-06
申请号：PCT/EP2004/011917
申请日：2004-10-21
Applicant: DE NORA ELETTRODI S.P.A. , OLDANI, Dario , FRANCIS, David , PERAGINE, Salvatore
Inventor： OLDANI, Dario , FRANCIS, David , PERAGINE, Salvatore
IPC: C25B1/36
CPC classification number: C25B9/142
Abstract: The invention describes heat exchange devices for dry-type inlet end-boxes of mercury cathode chlor-alkali electrolysis cells. The devices increase the heat exchange between recycled mercury and feed brine with the purpose of reducing the temperature of mercury to a substantial extent. The devices consist of a first element directed to subdivide the mercury flow into a fine and a stable dispersion of rivulets and droplets and of a second element capable of increasing the brine level to allow the prolonged contact thereof with mercury. The decrease of mercury temperature below the critical value of 90-95 °C determines an advantageous duration improvement of the end-box internal lining.
Abstract translation: 本发明描述了用于汞阴极氯碱电解槽的干式入口端盒的热交换装置。 这些装置增加了再循环汞和进料盐水之间的热交换，目的在于大幅度降低汞的温度。 这些装置包括一个第一元件，其用于将汞流细分为细小的和稳定的水滴和液滴的分散体，以及能够增加盐水水平以允许其与汞的长时间接触的第二元素。 汞温度的降低低于90-95℃的临界值，这决定了端板内衬的有利持续时间的改善。
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公开(公告)号：WO2004046424A3
公开(公告)日：2004-09-23
申请号：PCT/EP0312745
申请日：2003-11-14
Applicant: DE NORA ELETTRODI SPA , OLDANI DARIO , PERAGINE SALVATORE
Inventor： OLDANI DARIO , PERAGINE SALVATORE
Abstract: It is described an amalgam decomposer for mercury cathode electrolytic cells, provided with a liquid distributor (8) consisting of an arrangement of conduits comprising an external annulus (15), one or more internal annuli (16) and a central distributing tube (17) suitable for being crossed in sequence by a water flow. The distributor of the invention is suited to the upward feed of a graphite pack (7) crossed by the amalgam under gravity comprising at least one gas diffuser of anyone of the preceding claims. Arrangements of graphite packs disposed as a bundle of tubes, each fed by a distributor of the invention are also provided.
Abstract translation: 描述了一种用于汞阴极电解池的汞齐分解器，其设有由包括外部环（15），一个或多个内部环（16）和中心分配管（17）的导管的布置组成的液体分配器（8） 适合于通过水流顺序排列。 本发明的分配器适合于在重力下由汞齐穿过的石墨组件（7）向上馈送，包括前述权利要求中任一项所述的至少一个气体扩散器。 还提供了布置为一束管的石墨组件的布置，每个管由本发明的分配器供给。
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公开(公告)号：WO2004007805A3
公开(公告)日：2004-09-16
申请号：PCT/EP0307541
申请日：2003-07-11
Applicant: DE NORA ELETTRODI SPA , ROBINSON DOUGLAS J , MACDONALD STACEY A , JIRICNY VLADIMIR , OLDANI DARIO , TODARO FRANCESCO , CARRETTIN LEONELLO , MARTELLI GIAN NICOLA , SCOTTI DAVIDE
Inventor： ROBINSON DOUGLAS J , MACDONALD STACEY A , JIRICNY VLADIMIR , OLDANI DARIO , TODARO FRANCESCO , CARRETTIN LEONELLO , MARTELLI GIAN NICOLA , SCOTTI DAVIDE
Abstract: It is herein described an electrowinning cell with a spouted bed electrode (16) of growing metallic beads (15), separated by a semi-permeable diaphragm and suitable for being assembled in a stack in a modular arrangement.
Abstract translation: 本文描述的是具有生长金属珠（15）的喷射床电极（16）的电解沉积池，其由半透膜隔开并且适于以模块化布置组装成堆叠。
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公开(公告)号：WO2004046424A2
公开(公告)日：2004-06-03
申请号：PCT/EP2003/012745
申请日：2003-11-14
Applicant: DE NORA ELETTRODI S.P.A. , OLDANI, Dario , PERAGINE, Salvatore
Inventor： OLDANI, Dario , PERAGINE, Salvatore
IPC: C25B
Abstract: It is described an amalgam decomposer for mercury cathode electrolytic cells, provided with a liquid distributor consisting of an arrangement of conduits comprising an external annulus, one or more internal annuli and a central distributing tube suitable for being crossed in sequence by a water flow. The distributor of the invention is suited to the upward feed of a graphite pack crossed by the amalgam under gravity comprising at least one gas diffuser of anyone of the preceding claims. Arrangemnts of graphite packs disposed as a bundle of tubes, each fed by a distributor of the invention are also provided.
Abstract translation: 描述了一种用于汞阴极电解池的汞齐分解器，其设置有由包括外部环形物，一个或多个内部环形物和适于根据水流顺序交叉的中心分配管的管道组成的液体分配器。 本发明的分配器适合于在重力下由汞齐跨过的石墨组件向上馈送，包括前述权利要求中任一项所述的至少一个气体扩散器。 还提供了由本发明的分配器供给的石墨组件的放置为一束管的石墨组件。
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Patent Agency Ranking
公开(公告)号：WO2003102271A2
公开(公告)日：2003-12-11
申请号：PCT/EP2003/005709
申请日：2003-05-30
Applicant: UHDENORA TECHNOLOGIES S.R.L. , OLDANI, Dario , PASQUINUCCI, Antonio
Inventor： OLDANI, Dario , PASQUINUCCI, Antonio
IPC: C25B9/00
Abstract: A distributing element for an electrolyte percolating-type electrochemical cell comprises an external feeding manifold and an assembly formed by a gas diffusion electrode, a percolator and optionally an ion-exchange membrane. The element is particularly suitable for chlor-alkali electrolysis cells and alkaline fuel cells. It is also disclosed a method for retrofitting membrane electrochemical cells by inserting the distributing element of the invention therein.
Abstract translation: 用于电解质渗滤型电化学电池的分配元件包括外部进料歧管（7）和由气体扩散电极（10），渗滤器（9）和任选的离子交换膜（3'）形成的组件。 该元件特别适用于氯碱电解槽和碱性燃料电池。 还公开了通过将本发明的分配元件插入其中来改造膜电化学电池的方法。
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公开(公告)号：WO2003048422A3
公开(公告)日：2003-06-12
申请号：PCT/EP2002/013677
申请日：2002-12-03
Applicant: UHDENORA TECHNOLOGIES S.R.L. , OLDANI, Dario , MANGHI, Manuela
Inventor： OLDANI, Dario , MANGHI, Manuela
IPC: C25B9/04
Abstract: The invention describes a current collector for electrochemical cells, consisting of a sandwich of compressible and resilient layers of metal wires, which imparts a predetermined mechanical load under a broad compression range. It may have an uncompressed thickness comprised between 5 and 15 millimeters. It may be made of nickel, titanium, and alloys thereof, optionally with a protective coating. Said coating comprising silver or a noble metal.
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公开(公告)号：WO2003048420A2
公开(公告)日：2003-06-12
申请号：PCT/EP2002/013794
申请日：2002-12-05
Applicant: UHDENORA TECHNOLOGIES S.R.L. , OTTAVIANI, Angelo , OLDANI, Dario
Inventor： OTTAVIANI, Angelo , OLDANI, Dario
IPC: C25B9/00
Abstract: A new internal design for ion-exchange membrane electrolyser suitable for electrochemical reactions accompanied by gas evolution and anolyte concentration decrease and/or catholyte concentration increase is described. The electrolyser is of the type provided with a channel suitable for collecting and de-mixing the gas-liquid electrolyte bi-phase fluid positioned in the upper part, with vertical downcoming ducts connected to said channel for recirculating a portion of de-mixed liquid electrolyte, with a duct, also vertical, for discharging the gases and part of the de-mixed electrolyte to the external environment, with a lower distributing pipe for feeding the electrolyte and with vertical strips of sheet for supporting the electrodes. The device of the invention consists in an intermediate plate indicatively halfway between the anode and/or the cathode and the respective compartment wall, wherein said intermediate plate has the upper and lower edge respectively spaced apart from the channel and from the lower distributing pipe. The intermediate plate of the invention allows to increase the liquid recirculation inside the compartment, to uniform the flow of bi-phase fluid along the whole length of the channel with a reduction of the inner pressure fluctuations and to improve the electrolyte concentration homogeneity in both the longitudinal and the vertical direction.
Abstract translation: 描述了适用于伴随气体放出和阳极电解液浓度降低和/或阴极液浓度增加的电化学反应的离子交换膜电解器的新内部设计。 该电解槽具有适于收集和分离位于上部的气液二极体液体的通道的通道，连接到所述通道的垂直下行管道用于使一部分脱混合液体电解质再循环 具有用于将气体和部分去混合电解质排放到外部环境的管道，具有用于供给电解质的下部分配管和用于支撑电极的垂直条状条带。 本发明的装置在中间位于阳极和/或阴极与相应的隔室壁之间的中间板，其中所述中间板具有分别与通道和下部分配管分开的上边缘和下边缘。 本发明的中间板允许增加隔室内部的液体再循环，以使沿着通道整个长度的双相流体的流动均匀化，同时减小内部压力波动并改善两相流体中的电解质浓度均匀性 纵向和垂直方向。
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公开(公告)号：WO2006053768A8
公开(公告)日：2007-08-02
申请号：PCT/EP2005012381
申请日：2005-11-18
Applicant: UHDENORA SPA , FULVIO FEDERICO , CARRETTIN LEONELLO , OLDANI DARIO , MOJANA CORRADO
Inventor： FULVIO FEDERICO , CARRETTIN LEONELLO , OLDANI DARIO , MOJANA CORRADO
CPC classification number: C25B9/203 , C25B11/02 , H01M8/0247 , H01M8/0273
Abstract: It is described a bipolar plate consisting of a single wall and a perimetrical sealing frame obtained by folding and provided with a planar abutment surface for the frame-to-wall welding. The wall is further provided with projections on one face thereof preferably obtained by moulding, and with supports on the other face consisting of sheet strips housed in the recesses formed by the concave part of the projections. The projections substantially extend along the entire length of the bipolar plate. The projections and supports are connected to electrodes or current distributors. The projections, the supports, the single wall and the perimetrical frame are made of the same metal or alloy. The electrode or current distributor supported by the projections, the same projections and the supports are welded together by a single pass of arc-welding or preferably laser-welding. The electrode or current distributor connected to the support and the support themselves are mutually welded by a subsequent pass of arc-welding or preferably laser-welding. The welding between wall and perimetrical frame on the abutment surface of the frame is carried out by diode-laser technique, allowing to obtain a robust connection but without a complete melting of the sheet, thereby eliminating the risk of process fluid leakage to the external environment.
Abstract translation: 描述了由单壁和周边密封框组成的双极板，通过折叠并设置有用于框架到墙壁焊接的平面邻接表面而获得。 该壁还在其一个表面上设置有优选通过模制获得的突起，并且在另一面上具有由容纳在由突出部的凹部形成的凹部中的片条组成的支撑件。 突起基本上沿着双极板的整个长度延伸。 突起和支撑件连接到电极或电流分配器。 突起，支撑件，单壁和周边框架由相同的金属或合金制成。 由突起支撑的电极或电流分配器，相同的突起和支撑件通过电弧焊接或优选激光焊接的单次焊接在一起。 连接到支撑件和支撑件本身的电极或电流分配器通过随后的电弧焊接或优选地激光焊接而相互焊接。 在框架的邻接表面上的壁和周边框架之间的焊接通过二极管激光技术进行，允许获得坚固的连接，但没有完全熔化片材，从而消除了工艺流体泄漏到外部环境的风险 。
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公开(公告)号：WO2007080193A2
公开(公告)日：2007-07-19
申请号：PCT/EP2007/050362
申请日：2007-01-15
Applicant: UHDENORA S.p.A. , FEDERICO, Fulvio , WOLTERING, Peter , CARRETTIN, Leonello , OLDANI, Dario
Inventor： FEDERICO, Fulvio , WOLTERING, Peter , CARRETTIN, Leonello , OLDANI, Dario
IPC: C25B9/04
CPC classification number: C25B9/04 , C25B9/08 , H01M4/8605 , H01M8/0232 , H01M8/1004
Abstract: It is described a membrane electrolysis cell comprising an anodic compartment and a cathodic compartment, wherein at least one of the two compartments contains a gas- diffusion electrode, and a planar porous element traversed by an electrolyte flow is interposed between membrane and gas-diffusion electrode. The electric current transmission to the gas-diffusion electrode is effected through a current distributor provided with elastic conductive protrusions pushing the electrode against the porous element.
Abstract translation: 描述了包括阳极隔室和阴极隔室的膜电解电池，其中两个隔室中的至少一个包含气体扩散电极，并且由电解液流穿过的平面多孔元件为 介于膜和气体扩散电极之间。 流向气体扩散电极的电流通过设置有弹性导电突起的电流分配器实现，将电极推向多孔元件。
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