Process for the disposal of chlorinated organic products by sulphonation or nitration and subsequent oxidation
US5430231A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1993 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Nov 18, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D2203/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process for the disposal of chlorinated organic products, wherein said products are first treated with a sulphonating or nitrating agent, and then are oxidized with an aqueous solution of H.sub.2 O.sub.2, in the presence of Fe(II) ions as catalysts, optionally in association with ions of other transition metals selected from Cu(II), Ti(IV), Mn(II), Co(II), Ni(II), W(IV), Mo(IV), or mixtures thereof. The process leads to a substantially complete elimination of the chlorinated organic products with consequent, considerable reduction of the Chemical Oxygen Demand (COD), and to a high mineralization degree of the organic chlorine atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.