Polymetallic capture mass for capturing heavy metals
US9339787B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2013 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Jul 9, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/602
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a capture mass for capturing heavy metals in a liquid or gaseous effluent, comprising a porous solid support, copper sulphide and at least one second metal sulphide the metal of which is selected from the group constituted by chromium, manganese, iron, cobalt and nickel, and in which the ratio of the percentage by weight of the metal or metals other than copper to the percentage by weight of copper is in the range 0.01 to 2. The invention also concerns a process for preparing said capture mass and a process for capturing heavy metals in a gaseous or liquid effluent, in which said effluent is brought into contact with said capture mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.