Method for stabilization and/or fixation of leachable metals
US9409046B2 · kind B2 · utility
0Cited by
18References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2008 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Jun 11, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods for treatment a heavy metal-contaminated solid, semi-solid, liquid or gaseous matrix with magnesium oxide, magnesium sulfite, magnesium sulfate, magnesium chloride, magnesium hydroxide, and mixtures of any two or more of these. Methods for treatment of a solid or semi-solid waste containing unacceptable levels of leachable aluminum and reactive metallic aluminum-containing waste with magnesium oxide, magnesium sulfite, magnesium sulfate, magnesium hydroxide, magnesium chloride, and mixtures of any two or more of these.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.