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7611618 |
Method of using an electrolysis apparatus with a pulsed, dual voltage, multi-composition electrode assembly
A method of operating an electrolysis system ( 100 ) to achieve high hydrogen output flow rates is provided. At least three types of electrodes are positioned within an electrolysis tank ( 101 ),...
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7442287 |
Material surface treatment method using concurrent electrical, vibrational and photonic stimulation
A method of preparing a material surface, such as palladium, to facilitate desirable reactions, especially exothermic reactions in a liquid medium, involves placing the material whose surface is to...
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7241390 |
Method and system for biologic decontamination of a vessel's ballast water
A system for elimination of unwanted species from contaminated ship ballast water. The apparatus comprises an electrolytic cell containing at least one pair of electrodes, electric alternating...
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6620305 |
Method and apparatus for electrochemical cells with improved anti-fouling characteristics
An electrolytic process for the preparation of a compound having a charged electrolytic cell fitted with at least one anode and at least one cathode in a single compartment with a reaction mixture....
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6419815 |
Method for producing orthohydrogen and/or parahydrogen
An apparatus for producing orthohydrogen and/or parahydrogen. The apparatus includes a container holding water and at least one pair of closely-spaced electrodes arranged within the container and...
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6267865 |
Electrochemical fluorination using interrupted current
Described is a process for the electrochemical fluorination of a substrate, the process comprising the steps of: providing a substrate comprising at least one carbon-bonded hydrogen; preparing a...
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6267864 |
Field assisted transformation of chemical and material compositions
Methods and devices for transforming less desirable chemical species into more desirable or useful chemical forms are disclosed. The specifications can be used to treat pollutants into more benign...
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6258250 |
Method to reduce or prevent scaling
A method of reducing scale formation in an aqueous solution using an electrolysis apparatus which has, in an electrolysis chamber, at least two electrodes and a bipolar electrode between the two...
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5972198 |
Corrosion resistance test process for article formed of metal material and coating
It is an object of the present invention to provide a corrosion resistance test process, wherein the estimation of the corrosion resistance of an article formed of a metal material and a coating...
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5603819 |
Variation of the shape and morphological properties of silica and metal oxide powders by electro homogeneous precipitation
The present invention provides a method for preparing irreversible linear aggregates (fibrils) of metal oxide powders by utilizing static or pulsed DC electrical fields across a relatively...
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5578189 |
Decomposition and removal of H.sub.2 S into hydrogen and sulfur
The method of removing sulfurous compounds (organic and inorganic) from any fluid (gas or liquid) phase by contacting said fluid (gas or liquid) with the reactive metal to form a metal sulfide...
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5362369 |
Fully automatic current control for metal depletion cells
An electrolytic cell, for demetallization of a solution containing metal ions, has a hydrogen sensor connected to a control and monitoring unit which controls the intensity of current applied...
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5165905 |
Process for production of a highly pure silicic acid aqueous solution
A process for producing high purity silicic acid aqueous solution is disclosed, wherein alkali metals in an alkali silicate solution are removed by ion-exchanging, the resulting solution is treated...
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4980134 |
Leaching process
Noble metals, particularly gold, are recovered from ores by a leaching process in which a slurry of ground ore containing an oxidant and a lixiviant for dissolving the noble metal is subjected to...
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4824533 |
Process for preparing tetrahalopyridine
Symmetrical or 2,3,5,6-tetrahalopyridine is prepared from pentahalopyridine in an electrolytic cell by forming an organic solvent-free emulsion of pentahalopyridine and tetrahalopyridine and by...
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4797186 |
Method and apparatus for operating a fuel cell in combination with an electrochemical cell to produce a chemical product
A method and apparatus is disclosed for operating a fuel cell 14 which produces electrical energy in combination with an electrochemical cell 12 which uses electrical energy to produce a chemical...
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4795537 |
Electrical conditioning system for electrodes in an electrolysis cell
Metal electrodes (17,20) defining a cathode and anode are positioned in an electrolyte (28) so as to comprise an electrolysis cell (18). An electrical conditioning circuit (10) includes means for...
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4762598 |
Electrolytic metal recovery
Electrolytic recovery of silver metal is accomplished by application of a direct current with controlled ripple such that for any concentration of silver in the electrolyte, the instantaneous...
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4663004 |
Electrochemical conversion using alternating current and semiconductor electrodes
A method for electrochemical converting reactants to products includes cycling alternating electrical current to an electrode containing a non-degenerate semiconductor material in an...
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4557809 |
Electrochemical synthesis of zerovalent transition metal organophosphorus complexes
An electrochemical process is provided for the production of a zerovalent metal/organo-phosphorus ligand complex by passing a current through an electrolyte bath which includes a transition metal...
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4528078 |
Nonsaturable microdryer
A nonsaturable microdryer is provided for electrolytically removing moisture from sealed containers, particularly electronic equipment. An electrode/electrolyte assembly is disposed within a...
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4394230 |
Method and apparatus for splitting water molecules
Disclosed herein is a new and improved thermodynamic device to produce hydrogen gas and oxygen gas from ordinary water molecules or from seawater at normal temperatures and pressure. Also disclosed...
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4368108 |
Process for electrolytic recovery of gallium or gallium and vanadium from alkaline liquors resulting from alumina production
A process for electrolytic recovery of gallium or gallium and vanadium from alkaline liquors resulting from alumina production which comprises electrolysis thereof on solid electrodes at a cathodic...
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4316776 |
Method of removing Pu(IV) polymer from nuclear fuel reclaiming liquid
A Pu(IV) polymer not extractable from a nuclear fuel reclaiming solution by conventional processes is electrolytically converted to Pu 3 + and PuO 2 2 + ions which are subsequently converted to Pu...
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4279711 |
Aqueous electrowinning of metals
An improved process for aqueous electrowinning of metals, using methanol (or another soluble fuel) added to the electrolyte, a catalytically active platinum mesh or platinum-plated titanium anode...
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4236980 |
Process for alkali metal chloride electrolysis
For the electrolysis of an aqueous alkali metal chloride solution in a membrane cell with a perfluorinated cation exchange membrane it is important that there is only a minimum amount of cations of...
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4204923 |
Method and apparatus for recovery of hydrocarbons from tar-sands
Method and apparatus for releasing bitumen components of an earth aggregate by establishing a current flow within an electrolyte contained in a volume of the aggregate which has been isolated from...
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4184931 |
Method of electrolytically generating hydrogen and oxygen for use in a torch or the like
Hydrogen/oxygen mixtures for combustion in torches or the like are produced by the pulsed electrolysis of an aqueous medium. The pulse duration is 1 to 500 microseconds.
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4164453 |
Method for regenerating zinc
The invention relates to a method and device for regenerating zinc for use in electric traction batteries. It consists of putting an alkaline solution of zincate in contact with two electrodes at...
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4140596 |
Process for the electrolytic refining of copper
A process for the electrolytic refining of metals, especially copper, in which the copper is deposited from an electrolyte on the cathode of an electrolytic cell which comprises periodically...
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4115218 |
Method of electrolyzing brine
A practical method of electrolyzing sodium chloride brine on a commercial scale, obtaining in good yield a caustic product exceptionally low in salt content, is provided. The process necessarily...
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4088550 |
Periodic removal of cathodic deposits by intermittent reversal of the polarity of the cathodes
Electrolysis of impure solutions containing hardness impurities such as calcium and magnesium causes deposits to form on the cathodes of such an electrolysis cell which rapidly reduces the...
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4046654 |
Process for desalination with chlor-alkali production in a mercury diaphragm cell
Desalination process associated with chlor-alkali production in an electrolytic cell having a diaphragm structure comprising an immobilized liquid alkali metal amalgam.
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3954592 |
Electrolysis apparatus
A novel electrolytic cell performs an electrolysis process at improved efficiencies by supplying a pulsed DC current to the electrodes thereof. In preferred embodiment a generally cylindrical anode...
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3944473 |
Method for influencing an electrocatalytic reaction proceeding at an electrode
A potential pulse train corresponding to the reaction proceeding at the electrode is superposed on the potential of the electrode for influencing an electrocatalytic reaction proceeding at that...
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3884782 |
Electrolytic copper recovery method and electrolyte
High purity copper is recovered from the copper oxide containing ores by a continuous process wherein the copper is leached from the ore by an aqueous solution containing an inorganic acid, an...
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3755113 |
METHOD FOR ELECTROREFINING OF NICKEL
Method for electrorefining of nickel at high current densities wherein the process is carried out by use of reverse current with a duration of the reversal electrode polarity of 3.0 to 8.0 percent...
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3629080 |
ELECTROCHEMICAL MERCURATION OR ORGANIC COMPOUNDS
Electrosynthesis of compounds from olefins having useful functions such as hydroxy, amido, alkoxy, etc., and containing the readily replaceable organo-mercury function. Aromatics react also to give...
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3535218 |
PROCESS FOR RECOVERING COPPER FROM LEACH LIQUOR
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3463711 |
ELECTROLYTIC METHOD AND APPARATUS FOR RECOVERING SILVER FROM FIXING BATHS
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3449225 |
ELECTROLYTIC PROCESSES FOR PREPARING HALOGENATED ORGANIC COMPOUNDS
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3446718 |
CHEMICAL SYNTHESIS
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3415726 |
Electrolytic production of metal hydroxide
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3414495 |
Method of electrolytic production of oxygen difluoride
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3256162 |
Method for the electrolytic production of metal hydroxides
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3244604 |
Method and apparatus for the activation of amelt of a fused salt
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3082159 |
Production of titanium
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2935454 |
Method of the electrodeposition of titanium metal
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2913378 |
Two-step electrorefining of titanium alloys
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2860090 |
Electrolytic generation of metal hydroxide
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