Patent · US Active

Method of operating an oxygen-consuming electrode

US9422631B2 · kind B2 · utility

1Cited by

6References

16Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Andreas Bulan · Langenfeld, DE
Michael Großholz · Leverkusen, DE

Key dates

Filing date	Feb 28, 2012
Grant date	Aug 23, 2016
Priority date	—
Expiry date	Dec 1, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25B15/02
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to a method of operating an oxygen-consuming electrode as cathode for the electrolysis of alkali metal chlorides or hydrochloric acid, in an electrochemical cell, comprising feeding an oxygen-containing process gas to the electrode, wherein the oxygen-containing process gas is at least partly heated using a heat source from the electrolysis before contact with the oxygen-consuming electrode to a temperature which corresponds to not more than the temperature of the cathode space in the cell or is less than 50° C. below the temperature of the cathode space in the cell.

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