Patent · US Expired

Method and device for the burning of an artificial carbon body, especially of an anode for the aluminum fusion electrolysis

US4321457A · kind A · utility

4Cited by

4References

2Claims

0Family size

Assignee

Klockner-Humboldt-Deutz AG · DE

Inventors

Wilhelm Edel · Cologne, DE
Reinhold Heindl · Cologne, DE
Friedel Isenhardt
Ernst Schultze-Rhonhof · Bonn, DE

Key dates

Filing date	Feb 21, 1980
Grant date	Mar 23, 1982
Priority date	—
Expiry date	Feb 21, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25C7/025
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

An apparatus to burn carbon bodies has at least two independently controllable electric resistance heating circuits, at least two temperature sensors and a comparator. Two or more regions of a selected carbon body can be independently heated by the two circuits. The actual temperature of each of those two or more regions can be monitored by corresponding temperature sensors connected to the comparator. The comparator controls each electric resistance heating circuit independently so as to minimize any difference between a preselected temperature and the actual temperature of each region.

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