Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 7906005 | Means and method of chemical production Disclosed is a process for manufacturing bleach (or sodium hypochlorite) and caustic potash (or KOH) without the need for shipping or storing chlorine gas. Specifically, the present invention relates to the manufacture of potassium hydroxide and chlorine gas, throug... | 03/15/2011 |
| 7704370 | Process for jointly obtaining a chlorine derivative and crystals of sodium carbonate An aqueous solution of sodium chloride is electrolyzed in a cell (1) with an ion permselective membrane to produce, on the one hand, chlorine (16) which is converted in a chlorine production unit (6) and, on the other, an aqueous sodium hydroxid... | 04/27/2010 |
| 7354506 | Diaphragm cell for chlor-alkali production with increased electrode surface and method of manufacture thereof The invention relates to a diaphragm electrolytic cell, for the production of chlorine and caustic soda having superimposed modules, and a method for increasing the electrodic surface of a diaphragm electrolytic cell constituted by a module of interdigitated anodes ... | 04/08/2008 |
| 7341655 | Process for improving an electrode A process for increasing the active surface area of at least one electrode having a surface comprising a group VIII metal in an electrochemical cell, which also comprises at least one balancing electrode and an aqueous electrolyte which comprises nitrate ions, which... | 03/11/2008 |
| 7323090 | Bipolar zero-gap type electrolytic cell A bipolar zero-gap electrolytic cell comprising an anode comprising an anode substrate constituted of a titanium expanded metal or titanium metal net of 25 to 70% opening ratio, which anode after coating the substrate with a catalyst has a surface of 5 to 50 μm une... | 01/29/2008 |
| 7143722 | Electrolysis cell and internal combustion engine kit comprising the same A system for producing one or more gases for enhancing combustion in an internal combustion engine, the engine having an intake, the system comprising: an electrolysis cell, for generating one or more combustion enhancing gases under pressure; a gas conduit, for con... | 12/05/2006 |
| 7128824 | Method for electrolysis of aqueous solutions of hydrogen chloride A method for the electrolysis of aqueous solutions of hydrogen chloride in order to produce chlorine, characterized in that the following process parameters are maintained for initial operation: the anode half-element is filled wit... | 10/31/2006 |
| 7045044 | Dispersion composition containing perfluorocarbon-based copolymer A dispersion composition comprising 100 parts by weight of a specific perfluorocarbon-based copolymer containing functional groups and 10 to 10,000 parts by weight of a specific liquid fluoro-oligomer(s). The composition of the present invention is useful as a mater... | 05/16/2006 |
| 6922429 | Treatment of chloralkali feeds containing hydrogen peroxide and base A method and apparatus for removing BHP contaminants (alkali hydroxide and H2O2) from a recycled aqueous alkali chloride solution stream before the stream is fed to a chloralkali cell so that the contaminants do not impair the operation of a ch... | 07/26/2005 |
| 6890418 | Process for the electrolysis of an aqueous solution of alkali metal chloride The invention describes a process for the electrolysis of an aqueous solution of alkali metal chloride, in particular sodium chloride, by the membrane process with an aqueous solution of alkali metal hydroxide, in particular sodium hydroxide, as catholyte, where the... | 05/10/2005 |
| 6884337 | Production of basic hydrogen peroxide for chemical oxygen-iodine laser devices A method of generating basic hydrogen peroxide (BHP) fuel for a chemical oxygen-iodine laser (COIL) using stored alkali chloride, typically potassium chloride, and water. The alkali chloride and water are mixed to form a saturated or nearly saturated aqueous salt so... | 04/26/2005 |
| 6863798 | Method of producing washing, cleaning and sterilizing solution and system using such solution A washing, cleaning and sterilizing solution is produced by electrolyzing an electrolyte solution composed of mixed caustic soda and salt in an electrolyzer. The solution is used as it is or diluted with tap water or non-potable water. The solution is applicable to ... | 03/08/2005 |
| 6746592 | Process for removing aluminum species from alkali metal halide brine solutions A method for the reduction of soluble aluminum species in an evaporated salt alkali metal halide brine containing up to 500 ppb aluminum species to provide a brine feedstock suitable for use in a chlor-alkali membrane cell process, said method comprising treating sa... | 06/08/2004 |
| 6547948 | Method of increasing the concentration of dilute brine in NaCl electrolysis plants using the membrane process The present invention relates to a method of increasing the concentration of dilute brine in NaCl electrolysis plants using the membrane process, wherein the NaCl required is stored in a mass flow silo with supernatant liquid and is fed continuously from ... | 04/15/2003 |
| 6488833 | Method for electrolysis of alkali chloride Provided is a process which permits, upon preparation of chlorine and a caustic alkali by electrolyzing an aqueous alkali chloride solution in an ion-exchange-membrane-method alkali chloride electrolytic cell equipped with a gas diffusion cathode, decreas... | 12/03/2002 |
| 6402929 | Method of operating alkali chloride electrolytic cell A method of operating an alkali chloride electrolytic cell, comprising: providing an alkali chloride electrolytic cell comprising a gas diffusion cathode and a cation-exchange membrane, the gas diffusion cathode and cation-exchange membrane defining a cau... | 06/11/2002 |
| 6395153 | Diaphragm cell The present invention pertains to electrolytic diaphragm cells, particularly for the electrolysis of brine to produce chlorine and caustic. The innovation resides generally in the discovery that electrolytic cell operation can be desirably enhanced by com... | 05/28/2002 |
| 6309530 | Concentration of chlor-alkali membrane cell depleted brine This invention relates to methods, systems and installations for concentrating depleted brine produced by the electrolytic decomposition of concentrated brine in chlor-alkali membrane cells and to the efficient use of power, steam and brine. More particul... | 10/30/2001 |
| 6200455 | Method for reducing the plating of nickel on vessels, piping and cells in an alkali metal hydroxide manufacturing process A method to prevent cladding or plating of metals, such as nickel or iron in a continuous production of alkali metal hydroxides which involves several steps: electrolyzing an aqueous alkali metal salt solution forming hydrogen, chlorine and an at least 10... | 03/13/2001 |
| 6139714 | Method and apparatus for adjusting the pH of a liquid A process for adjusting the pH of an aqueous flowable fluid includes an electrochemical mechanism for adjusting the pH of an aqueous flowable fluid and a mechanism for then electrochemically stabilizing the adjusted pH of the fluid. A device for performin... | 10/31/2000 |
| 6132591 | Method for removal of sulfate groups and chlorate groups from brine In removal of sulfate groups and chlorate groups from brine used for electrolysis, concentrated brine used in an electrolysis process or dilute brine whose concentration is decreased by electrolysis is fed to an anode chamber divided by a cation exchange ... | 10/17/2000 |
| 6123826 | Method for removal of nickel and iron from alkali metal hydroxide streams without requiring the use of sodium borohydride The present invention relates to a method to control of the presence of nickel and/or iron in a caustic solution using at least two magnets to remove about one third of the nickel and/or iron present in a caustic solution. The method involves passing cell... | 09/26/2000 |
| 6080299 | Method for removal of nickel and iron from alkali metal hydroxide manufacturing process requiring the use of sodium borohydride The method involves the steps of: exposing a cell liquor containing metal to a first magnet, magnetically removing up to about one third of said metal present in the cell liquor, evaporating a significant amount of water out of that fluid, and raising the... | 06/27/2000 |
| 6080298 | Method for electrolysing a brine Electrolysing an aqueous solution of sodium chloride by means of a cell comprising a cation-exchange membrane which divides the cell into an anode compartment and an cathode compartment in which the said cathode is placed directly against the cation-excha... | 06/27/2000 |
| 6080293 | Electrolytic test machine An electrolytic test machine is used for a corrosion resistance test for a test material comprised of a metal blank and a coating film. The electrolytic test machine is constructed so that an adverse influence, due to chlorine gas generated during a test,... | 06/27/2000 |
| 6007600 | Method for producing copper in hydrometallurgical process The invention relates to a method for producing copper in a hydrometallurgical process from copper-bearing raw materials, such as sulfidic concentrates. The concentrate is leached in a leaching stage of several steps into a chloride-based solution. The co... | 12/28/1999 |
| 5980711 | Electrolytic test machine An electrode is mounted in a vertical manner in an electrolytic liquid in an electrolytic cell. A harmful gas collecting hood is disposed within the electrolytic cell to cover the entire upper portion of the electrode. One end of a bottom surface of the h... | 11/09/1999 |
| 5972186 | Electrolytic test machine An electrolytic test machine includes an electrolytic cell in which an electrolytic liquid is stored so that a test material is immersed in the electrolytic liquid. An electrode is immersed in the electrolytic liquid. A DC power source supplies a current ... | 10/26/1999 |
| 5855759 | Electrochemical cell and process for splitting a sulfate solution and producing a hyroxide solution sulfuric acid and a halogen gas The present invention relates to an electrochemical cell and a process for producing a hydroxide solution, sulfuric acid and a halogen gas from a hydrogen halide and a sulfate solution. In particular, the sulfate solution may be an alkali metal sulfate so... | 01/05/1999 |
| 5660713 | Jumper switch means for electrolyzers electrically connected in series The novel jumper switch means of the invention is directed to by-passing an electrolyzer in a row of electrolyzers electrically connected in series to permit removal of the by-passed electrolyzer for maintenance. The jumper switch means comprises one or m... | 08/26/1997 |
| 5651875 | Process for producing alkali metal hydroxide The invention concerns a method for producing an alkali metal hydroxide by a chlor-alkali electrolysis (1), wherein an alkali metal chloride solution is electrolyzed in order to form alkali metal hydroxide, chlorine and hydrogen, wherein at least a part o... | 07/29/1997 |
| 5567298 | Method of operating chlor-alkali cells Disclosed is an improved method of making chlorine and alkali metal hydroxide, e.g., sodium hydroxide, in an electrolytic cell of the type wherein a liquid permeable diaphragm separates the anolyte from the catholyte, said method comprising adding to the ... | 10/22/1996 |
| 5478447 | Method for producing an aqueous industrial sodium chloride solution Process for the manufacture of an industrial aqueous solution of sodium chloride, according to which an aqueous mixture (12) containing an aqueous solution of sodium chloride and of polyvalent metals is prepared by introducing into water (10) a solid prod... | 12/26/1995 |
| 5466347 | Method for electrolyzing aqueous solution of alkali chloride The present invention is intended to prevent the formation of impurities such as chlorate in electrolysis using the ion exchange membrane method, without resorting to the addition of hydrochloric acid to counter the migration of alkali hydroxide from the ... | 11/14/1995 |
| 5264090 | Method for the electrolysis of an alkali metal chloride using a cation exchange membrane A method for the electrolysis of an alkali metal chloride in an electrolytic cell is disclosed, in which use is made of a cation exchange membrane comprising a carboxylate-containing fluorocarbon polymer layer disposed on a cathode compartment side and pr... | 11/23/1993 |
| 5196095 | Process for recovering a metal from an aqueous solution comprising a mixture of metal chlorides A process for recovery of metal values from a mixed metal chloride containing leach solution by contacting the leach solution with a water immiscible solution of a complexing agent selective for the neutral chloride of the metal to be recovered and a chel... | 03/23/1993 |
| 5186794 | Alkali metal hydroxide generation system and the method therefor Disclosed are both an apparatus and method for the radiation-augmented electrolytic production of alkali metal hydroxide, molecular halogen, and hydrogen. Reduction of electrical energy requirements is achieved by using radiation to activate photo-sensiti... | 02/16/1993 |
| 5126019 | Purification of chlor-alkali membrane cell brine This invention relates to methods and systems for purifying brine for electrolysis in chlor-alkali cells, especially membrane cells by reducing the sulfate ion concentration, while at the same time minimizing the concentration of other undesireable ions s... | 06/30/1992 |
| 5104497 | Electrochemical process for treating liquid electrolytes A process for the manipulation of liquid electrolyte and gas during the operation of an electrochemical cell having at least one gas diffusion electrode and a counter electrode forming an electrolyte space for a flowing electrolyte which flows through the... | 04/14/1992 |
| 4857158 | Sodium hydrosulfite electrolytic cell process control system A process control system for a filter press membrane electrochemical cell is provided that utilizes a microcomputer for multi-tasking functions to concurrently execute four programs to control the cell operation and self-correct out-of-tolerance condition... | 08/15/1989 |
