Patent ID: 8961750
Filing Date: 2015-02-24
Classification: C25B

Abstract:
1. A cylindrical electrochemical cell for processing solutions, said cell comprising: an inner hollow anode configured as a titanium tube having a constant wall thickness; an outer cylindrical cathode configured as a titanium tube having a constant wall thickness; a permeable tubular ceramic diaphragm based on aluminum oxide arranged between said anode and cathode and dividing the interelectrode space into anode and cathode chambers and also having a constant wall thickness; units for mounting, securing and sealing the electrodes and the diaphragm located at the end sections of the cell; and devices for supplying the processed solutions in the electrode chambers and removing said solutions therefrom; the anode, cathode, diaphragm are arranged in said units and connected to said devices for supplying and removing the processed solutions so that a working section of the cell is formed, the anode is configured with a developed outer surface, on which an electrocatalytic coating is applied, with the ratio of the true surface area of the anode and the true surface area of the cathode being equal or greater than unity; wherein the outer true surface area of the diaphragm being equal or less than the true surface area of the cathode, and the true inner surface area of the diaphragm being equal or less than the true surface area of the anode but less than the true outer surface area of the diaphragm, and the product of the interelectrode distance and the quotient of the division of the total true surface areas of the anode and cathode by the total volume of the electrode chambers is 3.9 to 4.1, and the ratio of the cross-sectional area of the cathode chamber to the total cross-sectional area of the anode chamber and the diaphragm ranges from 0.9 to 1.0, and the length of the working section of the cell is 15-25 times the outside diameter of the anode.