Patent · US Expired

Process for nonpolluting destruction of polychlorinated waste materials

US5191155A · kind A · utility

6Cited by

7References

7Claims

0Family size

Assignee

Grillo-Werke AG · DE

Inventors

Klaus Driemel · Duisburg, DE
Joachim Wolf · Munich, DE
Wolfgang Schwarz · Ludwigshafen, DE

Key dates

Filing date	Oct 7, 1991
Grant date	Mar 2, 1993
Priority date	—
Expiry date	Oct 7, 2011

Classification

Technology area (CPC A)Human Necessities
CPC primaryA62D2101/28
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Polychlorinated waste materials such as polychlorinated dibenzodioxines (PCDD), polychlorinated dibenzofuranes (PCDF) and polychlorinated biphenyls (PCB) are subjected to nonpolluting destruction by combusting said materials together with waste sulfuric acids, acid tars and similar sulfur- and carbon-containing waste products of various compositions and consistencies in a multi-stage combustion furnace.

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