Patent · US Expired

Furnace for the melting and refining of copper

US4200265A · kind A · utility

7Cited by

6References

10Claims

0Family size

Assignee

Norddeutsche Affinerie Aktiengesellschaft

Inventors

Gerhard Berndt · Seevetal, DE
Gerhard Kapell · Jesteburg, DE
Anton Schummer · Hamburg, DE
Jens U. Hansen · Hamburg, DE

Key dates

Filing date	Jul 27, 1978
Grant date	Apr 29, 1980
Priority date	—
Expiry date	Jul 27, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S266/901
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A furnace for the melting and refining of raw copper and/or blister copper comprises a shaft furnace having a lock-chamber feeder for the material at the top of the shaft furnace and an opening into a hearth furnace in which the copper is refined. The shaft furnace and the hearth furnace are constructed unitarily with one another with the shaft furnace surmounting the hearth furnace in such manner that, when the apparatus has been charged, a pile of copper is formed which is supported on the bottom of the hearth furnace and slopes toward a portion of the length of the hearth furnace.

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