Method of decomposing dioxins
US6063979A · kind A · utility
9Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Sep 22, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D2101/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for decomposing and eliminating dioxins contained in flyash at a lower temperature and in a shorter time is provided, in which dioxins or dioxins-containing materials are brought into contact with amine compounds and/or ammonium compounds at a temperature lower than 300.degree. C. Chlorine in dioxins reacts with amine compounds and/or ammonium compounds and thus the dechlorination or replacement reaction of dioxin quickly proceeds under lower temperature. The method makes it possible to decompose dioxins under low temperature range in which dioxins have been thought to be undecomposable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.