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| Number | Title | Issue Date |
| 7341102 | Flue gas injection for heavy oil recovery A variety of methods for thermal recovery of natural gas and bitumen from a formation containing the latter. In general, the methods incorporate a series of existing, but previously uncombined technologies. A modified flue gas from the steam generators conventionall... | 03/11/2008 |
| 7338921 | MgB2 superconductor and method for preparation thereof An electrode is steeped in a solution of Mg and B and a negative voltage is applied to the electrode so as to precipitate superconductive MgB2 on the electrode. Superconductive MgB2 is easily manufactured in various forms and at low costs witho... | 03/04/2008 |
| 7279017 | Method for converting heavy oil residuum to a useful fuel A method for enabling the use of heavy oil residuum by conversion to a useful product. The method, in one embodiment, involves the use of a heavy oil residuum which is substantially non flowable. The viscosity of the residuum is reduced by heat or a combination of h... | 10/09/2007 |
| 6676824 | Process for purification of molten salt electrolytes A process for purification of molten salt electrolytes containing magnesium chloride in which oxygen-containing impurities such as magnesium hydroxychloride are destroyed both electrolytically and chemically. The process comprises passing a direct current... | 01/13/2004 |
| 6673228 | Arrangement for cleaning the bottom of an electrolytic tank An arrangement for cleaning the bottom of an electrolytic tank of solids settled on the bottom of the tank, said arrangement comprising elements to be moved along the bottom or at least in the vicinity thereof in order to detach solids from the bottom. Th... | 01/06/2004 |
| 6632347 | Electrochemical treatment of an aqueous solution A method and apparatus for the electrochemical treatment of an aqueous solution in an electrolytic cell is described. Output solution having a predetermined level of available free chlorine is produced by applying a substantially constant current across t... | 10/14/2003 |
| 6258245 | Copper leach process aids A method for enhancing the operation of an acid solvent extraction and electrowinning operation by inhibiting acidic aerosol formation, allowing increased acid concentration and allowing higher operating temperature is disclosed wherein an antifoam formul... | 07/10/2001 |
| 6235183 | Electrolytic method for the production of sodium and aluminum chloride A process for preparing sodium and aluminum chloride electrochemically is described in which, in an electrolytic cell containing aluminum as an anode and sodium as a cathode which are separated from one another by a sodium ion-conducting solid electrolyte... | 05/22/2001 |
| 5932171 | Sterilization apparatus utilizing catholyte and anolyte solutions produced by electrolysis of water An apparatus (A) for sterilizing medical instruments and other articles includes a tray (12) with an article receiving area (14). An article to be microbially decontaminated is positioned in the receiving area (14) and a microbe blocking lid (10) is close... | 08/03/1999 |
| 5833830 | Redox control in the electrodeposition of metals In one embodiment, a method of electrowinning a metal from an electrolyte comprises the steps of measuring the redox potential of the electrolyte to obtain a measured value, comparing the measured value with a predetermined optimum value and adding a redo... | 11/10/1998 |
| 5679236 | Method and apparatus for the production of a fuel mixture A fuel mixture combusting virtually free of pollutants and, in addition, requiring only very small quantities of combustible hydrocarbons is produced by introducing liquid fuel, low-nitrogen air and water into a chamber (9) provided with at least one ultr... | 10/21/1997 |
| 5454917 | Apparatus and process for recovering metal from an aqueous solution The invention is an apparatus and process for recovering metal from a solution. This apparatus is a structure having an anode formed from a plurality of reducing metal elements and a cathode formed from a high surface area electrically conductive material... | 10/03/1995 |
| 5215631 | Electrolytic preparation of tin, other metals, alloys and compounds Electrolytic processes for the growth of crystalline tin or other elemental crystals, with or without the use of a substrate. Exemplified cubic forms of alpha-tin and tetragonal forms of beta-tin are grown using a shaped anode and a pointed cathode to pro... | 06/01/1993 |
| 5098532 | Process for producing sodium hydroxide and ammonium sulfate from sodium sulfate A process for producing sodium hydroxide and ammonium sulfate by electrolysing an aqueous solution of sodium sulfate is disclosed. The process is carried out in a three-compartment electrolytic cell having a central compartment separated from an anode and... | 03/24/1992 |
| 4789445 | Method for the electrodeposition of metals The invention relates to an improved electrodeposition process for the recovery of metals by controlling the concentration of certain impurities in the electrolyte. For a zinc sulfate electrolyte, control of only the antimony impurity level below a predet... | 12/06/1988 |
| 4678549 | Process for making amino alcohols by electrochemical reduction of nitro alcohols A process for producing amino alcohols by electrosynthesis of nitro alcohols. Reduction of the nitro group is performed in three stages on a cathode made of a material having a strong hydrogen overpotential. During the second stage of reduction, the elect... | 07/07/1987 |
| 4632739 | Electrolytic cell head with replaceable insert and method of protecting the same A cell head for an electrolytic cell includes a generally tubular protective insert concentrically positioned within the head to shield the inner side walls thereof from the scouring action of corrosive gas bubbles produced during electrolysis within the ... | 12/30/1986 |
| 4618403 | Method of stabilizing metal-silica complexes in alkali metal halide brines A process for electrolysis in a membrane electrolytic cell comprises feeding a concentrated alkali metal halide brine containing complex-forming elements and silica at a pH of from about 4 to about 12 to the cell. The alkali metal halide brine is electrol... | 10/21/1986 |
| 4526662 | Processes for the recovery of cyanide from aqueous thiocyanate solutions and detoxication of aqueous thiocyanate solutions A process for the recovery of cyanide from thiocyanate. An aqueous solution containing thiocyanate is introduced into an electrochemical reactor. The reactor is activated for an appropriate time period while the pH of the solution is maintained in the ran... | 07/02/1985 |
| 4488945 | Process for producing hypochlorite In a process for the electrolysis of sea water to produce hypochlorite in at least one electrolysis cell equipped with anodes and cathodes forming interelectrodic spaces, the improvement comprising admixing sea water before electrolysis with sufficient hy... | 12/18/1984 |
| 4474656 | Method of controlling the potential of electrically-floating components of electrolyzer cells A method of reducing the overvoltages for hydrogen and oxygen evolution in alkaline water electrolyzers while preventing displacement of the potential of electrically-floating cell components to a region where they are susceptible to corrosion is disclose... | 10/02/1984 |
| 4311565 | Electrochemical process for the production of benzanthrone An electrochemical process for the production of benzanthrone by reaction of anthraquinone as, starting material, with glycerol, which process comprises reducing anthraquinone, which may additionally contain electronegative substituents, at the cathode in... | 01/19/1982 |
| 4217189 | Method and apparatus for control of electrowinning of zinc A method is disclosed for controlling a process for the recovery of zinc from zinc sulfate electrowinning solutions containing concentrations of impurities. The disclosed method includes the steps of establishing a test circuit comprising a test cell, a s... | 08/12/1980 |
| 4116781 | Rejuvenation of membrane type chlor-alkali cells by intermittently feeding high purity brines thereto during continued operation of the cell Chlor-alkali cells of the membrane type are highly susceptible to multivalent metallic impurities in the brine feeds. As the impurity concentration builds up on and/or in the membrane material, cell voltage increases and current efficiency is lost. By the... | 09/26/1978 |
| 4107009 | Recovery of copper from ores and concentrates A process for extracting copper from a copper bearing ore or concentrate which comprises immersing the ore or concentrate in an electrolyte, intimately mixing with the slurry so formed finely dispersed air or other oxygen-containing gas and maintaining th... | 08/15/1978 |
| 4105516 | Method of electrolysis Disclosed is a method of electrolyzing alkali metal chloride brines by passing an electrical current from an anode in an aqueous alkali metal chloride anolyte liquor through a permeable barrier to a cathode in an aqueous catholyte liquor, whereby to evolv... | 08/08/1978 |
| 4089761 | Method for treating sewage There is provided a method and apparatus for treating sewage, by first comminuting raw sewage in a comminuting compartment to provide a slurry and then digesting the raw, comminuted sewage by oxygen-dependent bacteria in a roofed compartment. Oxygen is su... | 05/16/1978 |
