Method and equipment for making polychlorobiphenyl nontoxic
US7196240B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 13, 2003 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Apr 11, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S588/90
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and equipment are provided for making polybichlorophenyl non-toxic. Methods include a first oxidation step, in which polybichlorophenyl is burned, and a second oxidation step, in which exhaust gas from the first oxidation step is oxidized by contact with metallic phthalocyanines or metallic phthalocyanine derivatives and with an oxygen supply compound. Equipment includes a first furnace for burning a polybichlorophenyl-containing oil with an auxiliary fuel and a second oxidation reaction unit. The second oxidation reaction unit connects to the first furnace under seal, and includes metallic phthalocyanine or metallic phthalocyanine derivative solution supply source and an oxygen supply compound supply source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.