Patent · US Expired

Method and furnace for removing toxic, especially radioactive wastes

US4655968A · kind A · utility

27Cited by

5References

5Claims

0Family size

Assignee

Kraftwerk Union Aktiengesellschaft · DE

Inventors

Horst Queiser · Maintal, DE
Siegfried Meininger · Schongau, DE
Karl-Heinz Kleinschroth · Frankfurt am Main, DE

Key dates

Filing date	Nov 9, 1984
Grant date	Apr 7, 1987
Priority date	—
Expiry date	Nov 9, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S422/903
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Radioactive wastes are treated in a furnace which has electrodes for electric heating. The furnace has at the lower end an outlet for slag material as well as a gas discharge line. Its well is a self-supporting tubular body which is arranged detachably in a metal furnace housing. At the upper end of the well is a line for feeding water. Thereby, carbon-containing waste, possibly also carbon of a carbon bed, is reacted to form water gas (CO+H.sub.2), which is burned after purification in an exhaust gas plant. The outlet of the metal housing has a movable grate.

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