Patent ID: 8764963

Claim:
A process of producing alkali metal chlorate comprising introducing an electrolyte solution and containing alkaline metal halide and alkali metal chlorate to an electrolytic cell, electrolyzing the electrolyte solution to produce an electrolyzed chlorate solution, and transferring the electrolyzed chlorate solution to a chlorate reactor to react the electrolyzed chlorate solution further to produce a more concentrated alkali metal chlorate, wherein said electrolytic cell is a non-divided electrolytic cell comprising: (1) at least one anode and at least one cathode, wherein said at least one cathode comprises an electrode substrate comprising M (n+1) AX n , where M is a metal of group IIIB, IVB, VB, VIB or VIII of the periodic table of elements or a combination thereof, A is an element of group IIIA, IVA, VA or VIA of the periodic table of elements or a combination thereof, X is carbon, nitrogen or a combination thereof, where n is 1, 2, or 3; (2) an electrocatalytic coating deposited on said electrode substrate, said coating selected from at least one of: a) a metal oxide and/or metal sulfide comprising B y C (1−y) O z1 S z2 , wherein B is at least one of ruthenium, platinum, rhodium, palladium, iridium, and cobalt, C is at least one valve metal, y is 0.4-0.9, 0<=z1, z2<=2 and z1+z2=2; or b) an oxide of a metal comprising B f C g D h E i , wherein B is at least one of ruthenium, platinum, rhodium, palladium, and cobalt, C is at least one valve metal, D is iridium, E is Mo and/or W, wherein f is 0.35-1, g is 0-1, h is 0-1, i is 0-0.5, wherein f+g+h+i=1; and (3) an outlet for transferring the electrolyzed chlorate solution to the chlorate reactor.