Patent · US Active

Device and method for obtaining non-ferrous metals

US8480950B2 · kind B2 · utility

84Cited by

4References

10Claims

0Family size

Assignee

PYROTEK, INC. · US

Inventors

Peter C. Jetten · Oud-Beijerland, NL
E. J. B. de Winter · Twello, NL

Key dates

Filing date	May 28, 2008
Grant date	Jul 9, 2013
Priority date	—
Expiry date	Sep 8, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Device and method for separating metals and metal oxides thereof, in particular in non-ferrous alloys, such as zinc. To this end, zinc residues (dross) is placed in a rotary drum and heated. After a certain treatment time, pure metal located in the bottom part of the drum is poured out. The invention proposes that the drum be held rotatably on a drive mechanism arranged in the cover of the furnace. This facilitates handling of the drum, more particularly when placing it on its drive mandrel. As a result, it is possible to use larger drums, resulting in a larger capacity and a more efficient process.

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