Process and apparatus for manufacture of calcined compounds for the production of calcined products
US10829413B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 11, 2015 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Nov 11, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/40
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing a highly calcined and uniformly calcined product from a feedstock. The process comprising the steps of grinding the feedstock to powder, preheating the powder, and calcining the powder in a reactor plant that comprises a number of reactor segments in which a flash calciner is used in each progressive reactor segment to incrementally react the powder by raising the temperature in each segment. The last segment may be a high-temperature reactor that has a controlled residence time and temperature that may allow controlled finishing of the calcination process to achieve a desired degree of calcination and sintering of the product; and cooling of the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.