C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
204/89
C25B 1/00 (2006.01) C02F 1/461 (2006.01) C02F 1/467 (2006.01) C25D 21/18 (2006.01)
Patent
CA 1063063
t Abstract of the Disclosure The process and apparatus of the present invention employs a porous cathode electrode made up of fine powder carbon particles held in the form of a porous cake on the upstream side of a perforate substrate by the pressure of the electrolytic solution being forced through the cake and the substrate. The cake is initially formed in such the same way a prefilt cake is deposited on a perforate filter element in a pressure filter, and as the electrolysis process is continued, additional powdered carbon is fed into the solution upstream of the cake whereby fresh carbon particles are added to the surface of the cake as the process proceeds. By using activated carbon, phosphates and organic molecules may also be separated from the solution and deposited on the interstitial surfaces of the powder d carbon cake simultaneously with the deposition of the metallic ions thereon. Periodically or whenever the cake is so thick as to impair the operation of the system, the system is shut down; the cake is physically removed from the substrate by any of the ways wall known in the filter art for removing filter cake for filter leaves or tubes; another carbon cake is then deposited on the substrate; and the apparatus is thereafter returned on line.
220262
Industrial Filter And Pump Mfg. Co.
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