Class 204/234 - Recirculation

Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Apparatus including means to recirculate the electrolyte.
No. of patents: 39
Last issue date: 09/14/2010

Number	Title	Issue Date
7794573	Systems and methods for electrochemically processing microfeature workpieces Systems and methods for electrochemically processing microfeature workpieces are disclosed herein. In one embodiment, a system includes (a) a processing unit having a first flow system configured to convey a flow of a first processing fluid to a microfeature workpie...	09/14/2010
7449091	Wafer electroplating apparatus A wafer electroplating apparatus with a function of bubble removal includes an electroplating bath main body and a fixing device. The electroplating bath main body has an inlet device, a first de-bubble tank and at least an air hole. The fixing device has a second d...	11/11/2008
7416647	Plating processing device A plating processing device comprises: a plating bath, on which an object to be plated is mounted; and a sparger provided with plating nozzle and washing nozzle for jetting plating solution and washing solution, respectively, toward the object in such a manner that ...	08/26/2008
7279079	Plating apparatus, cartridge and copper dissolution tank for use in the plating apparatus, and plating method A plating apparatus provided with: three copper dissolution tanks connected to a plating liquid circulation path for supplying copper ions to a plating liquid; a buffer container for supplying a replacement liquid into some of the copper dissolution tanks not in use...	10/09/2007
7160430	Electrochemical treatment of ammonia in waste-water In a sewage treatment plant, dissolved ammonium is extracted from the waste-water stream, and is transferred to a body of secondary water. The secondary water is passed through an electrolysis station, where the ammonium is transformed to nitrogen gas. The capture a...	01/09/2007
7067048	Method to improve the control of electro-polishing by use of a plating electrode an electrolyte bath A method and apparatus which uses a plating electrode in an electrolyte bath. The plating electrode works to purify an electrolyte polishing solution during the electro-polishing process. Preferably, the plating electrode is employed in a closed loop feedback system...	06/27/2006
7060180	Ozone generator retrofit apparatus for jetted tubs and spas Retrofit apparatus for retrofitting an ozone generator to a spa, hot tub or similar facility is disclosed. Here, a fitting is threaded into an air inlet of a spa or hot tub, and covers provided for the water outlets to generally prevent outgassing. In another embodi...	06/13/2006
7033480	Process for recovering platinum group metals from material containing base metals The process of the present invention recovers platinum group metal(s), such as platinum and palladium, from PGM-containing materials containing base metals, such as copper and nickel. The process controls sulfur levels by using solvent extraction 306 to remov...	04/25/2006
6899803	Method and device for the regulation of the concentration of metal ions in an electrolyte and use thereof In order to regulate the metal ion concentration in an electrolyte fluid serving to electrolytically deposit metal and additionally containing substances of an electrochemically reversible redox system, it has been known in the art to conduct at least one portion of...	05/31/2005
6402909	Plating system with shielded secondary anode for semiconductor manufacturing An electroplating system is provided for semiconductor wafers which include a plating chamber having a consumable shielded secondary anode shielded by an inert anode from a semiconductor wafer connector. For a copper plating system the plating chamber has...	06/11/2002
6350354	Modular solvent extraction plant A modular solvent extraction plant for extracting metal from a metal are is provided. It includes a stage-wise, plug flow contactor that mixes an aqueous solution and an organic solvent solution into a mixed emulsion, a reactor to further mix the solution...	02/26/2002
6350362	Method and device for regulating the concentration of substances in electrolytes A method and an apparatus are described for regulating the concentration of metal ions in an electrolytic fluid, which is used for the deposition of metal with insoluble anodes and additionally contains compounds of an electrochemically reversible redox s...	02/26/2002
5656140	Electrochemical reclamation of heavy metals from natural materials such as soil An electrochemical remediation apparatus comprising a cylindrical tank having a plurality of vertical anodes suspended downwardly from a dome-shaped lid and positioned around the circumference of the tank spaced radially inwardly from the inner sidewalls ...	08/12/1997
5569370	Electrochemical system for recovery of metals from their compounds An electrochemical system for the recovery of metals from metal ores in which reactions are carried out in separate anode and cathode tanks with the liquid product from the anode tank being separated and purified before being returned to the cathode tank ...	10/29/1996
5536378	Apparatus for manufacture of oxygen from lunar ilmenite A reactor apparatus for production of Lunar oxygen uses feed stocks comprising a particulate hydrogen-reducible enriched feed in the size range from about 20-200 microns, containing 80-90% Lunar ilmenite (FeTiO3) and ferrous Lunar agglutinates....	07/16/1996
5378324	Process and an electrolytic cell for the production of fluorine A process and an electrolytic cell for the production of fluorine. A fluorine-containing electrolyte is passed in non-turbulent flow between an anode and a cathode of the electrolytic cell. The electrolyte emerging from between the anode and the cathode i...	01/03/1995
5362368	Chlorine generator An electrolytic chlorine gas generating system is disclosed. The system includes an electrolytic cell generating the chlorine gas, a brine tank supplying saturated brine to the anode compartment of the cell, and an acid feed tank containing hydrochloric a...	11/08/1994
5133846	Silver recovery device Silver is recovered from the rinse water from a photographic film processing unit by means of a silver recovery device in which the rinse water is passed through at least one bed of ion exchange resin particles maintained in fluidized condition by the wat...	07/28/1992
5118402	Electrolytic silver recovery system for recovering silver from photographic fixing solutions An electrolytic silver recovery system for recovering silver from photographic fixing solutions, by means of an electrolytic cell (28) having an anode (52) and a cathode (53), and circulation pumps (29a, 29b) for removing solution from the cell and return...	06/02/1992
5094734	Water treatment unit A water treatment unit uses an electrolytic cell generating chlorine and ozone. The electrolyte is brine, and the separation between the anode and the cathode of the cell is 2-30 cm. The generated chlorine and ozone are added to a stream of water to be tr...	03/10/1992
4948476	Hybrid chromium recovery process There are disclosed method and apparatus for recovering chromium from chromium-containing wastes, using an electrolytic oxidation cell divided by an anion exchange membrane and a coupled transport module containing a membrane containing a chromium(VI) com...	08/14/1990
4906340	Process for electroplating metals A process for electroplating metals in an electroplating cell in which the anode current efficiency of the cell is greater than the cathode current efficiency. Buildup of excess metal in the cell is counteracted by circulating the plating solution through...	03/06/1990
4859293	Process for refining gold and apparatus employed therefor Disclosed are processes and an apparatus for refining gold. One of the processes comprises dissolving unrefined gold by use of iodine and/or an iodide compound to form a solution containing an iodide compound of gold, removing insoluble substances in the ...	08/22/1989
4789439	Method of electrolytic tinning using an insoluble anode A method of electrolytic tinning of metal in strip form using an insoluble anode, comprises passing the strip to be tinned through an electrolytic tinning bath having an insoluble anode, the strip forming the cathode, to deposit tin from the electrolyte o...	12/06/1988
4663085	Apparatus for decontamination of radiation contaminated metallic waste The invention resides in an apparatus for the decontamination of radioactivated metallic waste by the electrolytic oxidation-reduction with an aqueous nitric acid solution containing trivalent cerium ions, i.e. the step of converting the trivalent cerium ...	05/05/1987
4432856	Apparatus for manufacturing chlorine dioxide Chlorine dioxide is produced by electrolysis of a solution of chlorite and by using a compact apparatus which provides continuously a uniform concentration of chlorine dioxide, which can be operated easily, which discharges a spent electrolyte that can be...	02/21/1984
4340451	Method of replenishing gold/in plating baths The gold content of a gold plating bath is replenished by circulating the plating solution through an AuCN containing vessel. The plating solution contains sufficient free cyanide to render the gold soluble by producing the soluble Au(CN)2...	07/20/1982
4310403	Apparatus for electrolytically treating a metal strip A metal strip is electrolytically treated by using an apparatus having: a vessel for defining an electrolytic treatment space for a metal strip; a plurality of conductor rolls arranged along a path of movement of the metal strip extending through the treatment spac...	01/12/1982
4290856	Electroplating apparatus and method An electroforming or electrodeposition system in which the depleted metallic component in the electrolyte is replenished by an electrolyzing unit having an anode chamber communicating with the electroforming electrolyte receptacle and separated by an ion-...	09/22/1981
4181580	Process for electro-tin plating A method for the electrolytic tinning of steel strip in an electrolytic bath wherein the steel strip is the cathode and insoluble anodes are used, the electrodes are immersed in an electrolyte solution containing tin ions and wherein the concentration of ...	01/01/1980
4162955	Electrodeposition coating apparatus An apparatus used in the electrodeposition coating of a continuous sheet of metal as it travels in a horizontal pathway between a pair of electrically charged electrodes and through a bath of liquid coating solution that is continuously circulated to the ...	07/31/1979
4098667	Electrochemical method and device for producing oxygen Apparatus for producing high purity oxygen comprising an oxidizing reactor coupled to at least one compartment of an electrochemical cell. Air is used to oxidize a reduced form of a special compound to form a peroxide which spontaneously decomposes to a m...	07/04/1978
4073708	Apparatus and method for regeneration of chromosulfuric acid etchants A chromic-sulfuric etching solution for copper is regenerated in an etching container with a permeable diaphragm dividing the container into an etching chamber and a sulfuric acid containing chamber. Electric current passes between an anode electrode loca...	02/14/1978
4071415	Method of electroplating aluminum and its alloys Aluminum or an alloy thereof is electroplated upon electrically conductive substrates by immersing the substrate as a cathode in a novel stable electrolyte, made as follows: A. reacting aluminum with a hydrogen halide such as HCl, HBr, or HI (but preferab...	01/31/1978
4054503	Portable metal recovery apparatus Portable apparatus is disclosed for recovering metal from metal bearing solutions. The apparatus includes a chamber arranged to be mounted on a container for the solution to establish a fluid flow path between an anode and cathode in the chamber for depos...	10/18/1977
4045304	High speed nickel plating method using insoluble anode Excellent high speed nickel plating is achieved by using insoluble anode, detecting changes in the pH value of the plating bath during the plating operation, and supplying nickel ions to the plating bath in response to the detected changes by forcibly con...	08/30/1977
4028212	Silver recovery apparatus A silver recovery apparatus for use in conjunction with photographic development systems acting to remove metallic silver from the hypo bath. The present device includes an electrolytic cell within a closed chamber through which the hypo bath is bypassed....	06/07/1977
4022678	Electrolytic cell An electrolytic cell comprising a rectangular tank divided into a plurality of adjacent compartments by a plurality of spaced apart parallel electrode plates. The outboard electrodes may form one pair of the opposite tank walls. Alternate electrodes are o...	05/10/1977
3935092	Purification of a chloride solution A process and apparatus for purification of a sodium chloride solution dialysis liquid in which the liquid is subjected to an electrolysis....	01/27/1976

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Class 204/234 - Recirculation