Method for the destruction of chemically stable waste
US4980092A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1989 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Apr 11, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B53/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for the destruction of chemical stable waste by pyrolysis whereby heat is applied to the waste using at least one plasma torch formed of non-transferred arc plasma type. The waste generated inside a duct having an end orifice flows upward passing the orifice and toward the nozzle of the plasma torch, wherein the axis of the nozzle of the plasma torch and the axis of the orifice are substantially collinear. Gaseous and/or liquid waste products resulting from the heating step are subjected to expansion and combustion in the combustion chamber whereby gaseous products resulting from combustion and expansion are quenched and then washed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.