Apparatus and process for mediated electrochemical oxidation of materials
AssigneeScimist, Inc.
InventorsRoger W. Carson, Bruce W. Bremer, Michael L. Mastracci, Kent E. Maggard
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Abstract
A cell design for systems of mediated electrochemical oxidation (MEO) of materials includes inactive surface coatings, such as polyvinylidene fluoride, polypropylene, ethylene-chlorotrifluoroethylene and polytetrafluoroethylene polymers or a glass glaze or metallic oxide, on all interior surfaces of the electrochemical cell to prevent . A further cell design for systems of mediated electrochemical oxidation (MEO) included conduits for connecting plural catholyte chambers or for connecting plural anolyte chambers which are embedded within walls of a molded unibody constructed box and slots for parallel arrangement of membranes and porous electrodes.
Claims36
Apparatus for treating and oxidizing materials comprising first and second electrochemical cells for various embodiments and other appropriate applications, wherein all surfaces in the first electrochemical cell that come into contact with the electrolyte are made of material selected from the group consisting of polyvinylidene fluoride (PVDF), polypropylene (PP), ethylene-chlorotrifluoroethylene, polytetrafluoroethylene (PTFE), and combinations thereof, further comprising cell materials selected from the group consisting of fiberglass, polypropylene, metals, composite metals, and combinations thereof, the second electrochemical cell comprising a box, a lid, and input and exit tubings through the lid to allow anolyte and/or catholyte to enter and exit respectively through the tubings to and from the second electrochemical cell, the box and lid being composed of metal(s) and/or metal composites and the surfaces of the second electrochemical cell in contact with the electrolytes are coated with a glass glaze or metallic oxides, wherein the second cell containing the anolyte is connected by anolyte conduits in the wall of the second electrochemical cell so that the anolyte solution flows through the entire second electrochemical cell and wherein the first cell containing the catholyte is connected by catholyte conduits in the wall of the first electrochemical cell, thereby enabling easy maintenance through ease of access to the interior of the box and to the membranes.
Apparatus comprising a mediated electrochemical oxygen system for treating and oxidizing materials further comprising an electrochemical cell, wherein the electrochemical cell has a molded unibody construction box and a lid is coupled to the box, interior walls in the box, plural membranes in the box, slots in the interior walls for holding membranes, wherein the slots receive and hold the membranes in liquid-tight manner, anolyte and catholyte in the box separated on opposite sides of the plural membranes, porous electrodes positioned in the box so that the anolyte and the catholyte flow through the electrodes and contact both sides of the electrodes, a gasket between the box and the lid for creating a tight seal, wherein the interior walls in the box are connected to the plural membranes for separating the anolyte from the catholyte, wherein the electrodes include anodes and cathodes extending from the slots in the walls and electrical connections connected to the DC power supply and to the electrodes and passing through the lid to an anode bus and a cathode bus on the lid.
Dependencies are inferred from the claim text.