Patent · US Expired

Bipolar electrodes with graphite as the carrier and their production

US4422921A · kind A · utility

0Cited by

3References

2Claims

0Family size

Assignee

BASF SE

Inventors

Hans Roos · Bad Dürkheim, DE
Hugo Boehn · Ludwigshafen, DE
Knut Bittler · Speyer, DE
Dieter Schlaefer · Ludwigshafen, DE

Key dates

Filing date	Aug 16, 1982
Grant date	Dec 27, 1983
Priority date	—
Expiry date	Aug 16, 2002

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25B11/04
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Bipolar electrodes with graphite as the carrier have a layer of chromium trioxide not less than 10 .mu.m thick on both the anode face and the cathode face. The electrodes are produced by plasma-spraying chromium trioxide powder onto a graphite layer, and can be used as bipolar electrodes in alkali metal chloride electrolysis cells.

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