Method for eliminating a nitrogenated heterocyclic, or aromatic, compound in an effluent
US6582952B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 6, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Jun 6, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12R2001/10
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
This invention relates to a method for the removal of a nitrogen containing heterocyclic or aromatic compound, comprising at least one nitro group, in an effluent by the conversion of said, at least one nitro group into an amine group by means of a reducing agent. The reducing agent can be hydrogen in the presence of Pd/C or a micro-organism.This invention also relates to a method for the synthesis of 5-amino-1,2,4-triazole-3-one from 5-nitro-1,2,4-triazole-3-one by said method of conversion, that allows one to achieve synthesis yields greater than 80%.This invention also relates to a colony of the type Bacillus licheniformis capable of converting one or more nitro groups of nitrogen containing heterocyclic compounds into one or more amine groups. This colony has been filed in the CNCM, held by the Pasteur Institute, under the number I-1915.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.