Direct reduction of iron (DRI) pellet treatments
US9200339B2 · kind B2 · utility
0Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2014 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Jul 25, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/134
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aspect provides a method of treating direct reduced iron (DRI) pellets, by applying a foam to the DRI pellets. The foam may include a foam having an expansion ratio of about 20-40 and a bubble size of about 200 microns or less. The foam may include one or more additives, such as anti-corrosion agent(s), oxidizing agents, and dust reducing binder(s). The foam(s) may be applied in a single stage or in multiple stages and may be applied to hot or cold DRI pellets. Other aspects are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.