Eltech Systems Corporation

Water Star, Inc.

Union Camp Corporation

Dravo Lime Company

Marilyn J Niksa

Andrew J Niksa

Richard J Coin

Gerald R Pohto

Andy W Getsy

Kenneth L Hardee

Lynne M Ernes

Thomas J Schue

Thomas R Turk

Douglas J Wheeler

Jay M Noscal

Homer L Turley

Leslie K Lakatos

Frank Solomon

Edward M Halko

Kenneth J Branchick

Derk T Huibers

James J Stewart

Charles Grun

Donald W Abrahamson

Yury Genodman

Kenneth J Gregg

Roger W Daniels

Joseph Elliott

Roger J Chmura

Daniel P Hagel

A point of use electrolysis system can be used to generate oxidizing species within liquid retained by a point of use discharge nozzle, helping to prevent pathogens from growing and multiplying in the nozzle. In one example, a system includes a point of use discharge nozzle having an inlet and an outlet and electrodes. The electrodes are configured to electrochemically generate an oxidizing species within the point of use discharge nozzle. According to the example, the point of use discharge nozzle is configured to trap liquid from a liquid source, when liquid ceases flowing through the point of use discharge nozzle, thereby providing a trapped liquid. Further, the electrodes are configured to generate the oxidizing species within the trapped liquid.

Point of use electrolysis system

Dissolved oxygen may be generated by adding a peroxide to a fluid stream and then catalytically decomposing the peroxide to generate oxygen. As the peroxide is catalytically decomposed, the oxygen may solubilize in a surrounding fluid so as to provide dissolved oxygen. In some examples, the amount of peroxide added to the fluid stream is controlled such that substantially all of the hydrogen peroxide added to the fluid stream catalytically decomposes and yet the dissolved oxygen concentration of the fluid stream does not exceed a dissolved oxygen saturation limit for the fluid stream.

High pressure dissolved oxygen generation

A composition and method of manufacture of electrodes having controlled electrochemical activity to allow the electrodes to be designed for a variety of electro-oxidation processes. The electrodes are comprised of a compact coating deposited onto a conductive substrate, the coating being formed as multiple layers of a mixture of one or more platinum group metal oxides and one or more valve metal oxides. The formation of multiple layers allows the concentrations of platinum group metal and valve metal to be varied for each layer as desired for an application. For example, an electrode structure can be manufactured for use as an anode in electroplating processes, such that the oxidation of the organic additives in the electrolyte is markedly inhibited. Another electrode can be manufactured to operate at high anodic potentials in aqueous electrolytes to generate strong oxidants, e.g., hydrogen peroxide or ozone.

Multi-layer mixed metal oxide electrode and method for making same

An electrode, electrochemical cell, and electrochemical processes are disclosed. The electrode is a porous, multi-layered electrode which can have an element in flexible, strip form wound around a central, usually flat plate core, which core may serve as a current distributor. In any form, each layer can be represented by a very thin, highly flexible metal mesh. This can be a fine, as opposed to a coarse, mesh which has extremely thin strands and small voids. The electrode will have an active coating. For utilizing this electrode, the cell in one form will be a monopolar cell providing upward, parallel electrolyte flow through the porous, multi-layered electrode. A representative cell can have such electrode at least substantially filling an electrode chamber. The cells can be contained in a cell box that will provide the desired flow-through relationship for the electrolyte to the electrode. In cell operation, electrochemical processes which can be carried out include metal ion oxidation or reduction, oxidation of organic substituents, nitrate reduction as well as salt splitting.

Electrode and electrochemical cell

Electrode, electrochemical cell and electrochemical processes

Electrode for electrochemical cell

Electrochemical process

The present invention relates to a filter press electrolyzer of the type having front and rear bulkheads. The electrolyzer comprises an electrolytic cell between the bulkheads. The cell comprises a pair of planar electrode assemblies, typically including a center compartment assembly therebetween, all in a stacked relationship. Separators are clamped between the electrode and center compartment assemblies. Each electrode assembly comprises an annular frame defining an electrolyte chamber, a planar electrode member having an electrode active area within said chamber, and a current distributing bus on the side of the electrode member which is opposite the side facing the separator. The current distributing bus has a planar surface area which is substantially co-extensive with the electrode active area. Each of the electrode assemblies comprises a plurality of spaced-apart separator strips affixed to the electrode member on the side opposite the current distributing bus. The separator strips separate the electrode member from the separator. The bulkheads include means for compression of the electrode assemblies one against the other. The separator strips of the electrode assemblies are aligned so that the separator strips transmit the compression forces within the electrolyzer from one electrode assembly to the other.

Filter press electrolyzer

A compact reserve battery is disclosed comprising a cell housing, an expandable cell stack contained within a first portion of the housing, and an electrolyte reservoir contained within a second portion of the housing. The cell stack is expandable into the housing second portion, expansion of the cell stack displacing electrolyte from the electrolyte reservoir into the cell stack, thereby activating the battery.

Reserve battery

The present invention relates to the direct electrolysis of tall oil soap (TOS) to produce crude tall oil (CTO). An aqueous tall oil soap solution generated in a kraft wood-pulping process is placed in contact with an anode in an electrolytic cell, wherein the tall oil soap is dissassociated to form crude tall oil and free sodium ions. The sodium ions migrate through a membrane to associate with hydroxide ions formed in a cathode chamber to form NaOH, which may optionally be recycled to the kraft pulping process as a make-up chemical for lost sodium. The crude tall oil is recovered from the electrolyzed tall oil soap solution for further refinement. Optionally, the tall oil soap solution is treated prior to electrolysis to remove components which may interfere with the electrolysis.

Method for the manufacture of tall oils

An aqueous electrolyte aluminum-air battery comprises one or more cells, each cell comprising a frame which defines an electrolyte chamber. The frame is made of a rigid material inactive to the electrolyte. The cell has a consumable aluminum anode and an air cathode spaced from the anode by said electrolyte chamber. Means are provided for admitting electrolyte solution into the electrolyte chamber. A vent exposes the electrolyte chamber to atmosphere. A hydrophobic membrane which is impermeable to the passage of electrolyte but permeable to the passage of hydrogen closes the vent. A surface of each cell anode is exposed to the flow of air. The amount of surface exposed is effective to dissipate heat generated at the anode.

Electrolyte for an aluminum air-battery comprising an anti-foaming agent

A bipolar battery assembly of the consumable metal anode type is described. Contact between internal battery elements is now enhanced by air assisted, internally exerted compressive force. Battery elements are constructed in modular manner that assists in the ease of battery assembly and disassembly. Furthermore, ease of anode replenishment is maintained. A multitude of individual cells can now be joined together in an efficient bipolar assembly cell stack for augmented electrical energy generation. In addition to being bipolar, the battery is of rugged construction, providing for dependable, long-life operation that is desirably maintenance-free.

Bipolar metal/air battery

An aqueous electrolyte aluminum-air battery comprises one or more cells, each cell comprising a frame which defines an electrolyte chamber. The frame is made of a rigid material inactive to the electrolyte. The cell has a consumable aluminum anode and an air cathode spaced from the anode by said electrolyte chamber. Means are provided for admitting electrolyte solution into the electrolyte chamber. A vent exposes the electrolyte chamber to atmosphere. A hydrophobic membrane which is impermeable to the passage of the electrolyte but permeable to the passage of hydrogen closes the vent. A surface of each cell anode is exposed to the flow of air. The amount of surface exposed is effective to dissipate heat generated at the anode.

Primary aluminum-air battery

A bipolar battery having a consumable metal anode and being of the filter-press type is described. Internal battery contact is obtained by pressure connection transmitted virtually all, to completely, by end bulkheads. A multitude of adjoning cells can be placed together in a bipolar assembly cell stack. Yet the battery is compact and lightweight.

Bipolar, filter-press, consumable metal anode battery

Growing community of inventors

Chardon, OH, United States of America

Marilyn J Niksa