Use of a KMgF3 compound for trapping metals in the form of fluorides and/or oxyfluorides in a gaseous or a liquid phase
US8858901B2 · kind B2 · utility
1Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2012 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to the use of a compound of the formula KmgF3 to trap metals in the form of fluorides and/or of oxyfluorides in a gaseous or liquid phase. It also relates to a compound of the formula KMgF3 which has a surface area at least equal to 30 m2/g and at most equal to 150 m2/g and also to its methods of preparation. The invention notably finds application in the nuclear industry, in which it can advantageously be used to purify uranium hexafluoride (UF6) present in a gaseous or liquid stream, with regard to metal impurities which are also present in this stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.