	US 12,234,562 B2
	Selective cathode for use in electrolytic chlorate process
Mats Patrik Wildlock, Kungälv (SE); Nina Natalija Helene Simic, Torslanda (SE); Ann Maria Cornell, Lidingö (SE); Balázs Endrödi, Szeged (HU); and Aleksandra Lindberg, Stockholm (SE)
Assigned to NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem (NL)
Appl. No. 17/250,961
Filed by NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem (NL)
PCT Filed Oct. 1, 2019, PCT No. PCT/EP2019/076664 § 371(c)(1), (2) Date Apr. 2, 2021, PCT Pub. No. WO2020/070172, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 18198098 (EP), filed on Oct. 2, 2018.
Prior Publication US 2021/0381118 A1, Dec. 9, 2021
Int. Cl. C25B 9/00 (2021.01); C25B 1/26 (2006.01); C25B 11/00 (2021.01); C25B 11/053 (2021.01); C25B 11/057 (2021.01); C25B 11/077 (2021.01); C25B 1/04 (2021.01)

CPC C25B 11/053 (2021.01) [C25B 1/265 (2013.01); C25B 11/057 (2021.01); C25B 11/077 (2021.01); C25B 1/04 (2013.01)]

20 Claims

1. A process for producing alkali metal chlorate, comprising introducing an electrolyte solution, free of added chromium, said solution comprising alkali metal chloride to a non-divided electrolytic cell comprising at least one anode and at least one cathode, and electrolyzing the electrolyte solution to produce an electrolyzed solution enriched in chlorate, wherein at least one cathode comprises a conductive electrode substrate which may be coated with one or more intermediate conductive layers, and an electrocatalytic top layer applied onto said substrate or onto intermediate layers, said top layer comprising cerium oxide and/or manganese oxide.