Patent · US Expired

Anode for electrolysis of seawater

US4479864A · kind A · utility

6Cited by
3References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 28, 1983
Grant dateOct 30, 1984
Priority date
Expiry dateJul 28, 2003

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC02F2103/08
  • WIPO fieldEnvironmental technology
  • WIPO sectorChemistry

Abstract

An anode for generating available chlorine from seawater by electrolysis which comprises a substrate made of titanium or an alloy thereof, and a coating on said substrate which is made up of an active anode material layer containing 15-85 wt % of platinum, 5-35 wt % of iridium dioxide, and 10-15 wt % of ruthenium dioxide. The anode has greatly improved anode performance such as current efficiency, cell voltage, and durability. Therefor, its use for a long period of time becomes possible in any condition of seawater.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.