Countercurrent solids-fluid contactor
US4416859A · kind A · utility
14Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1981 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Feb 17, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D11/0242
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for the countercurrent contacting of solid particles with a fluid is disclosed. The contacting is effected within a multistage tower, each stage having a weir means regulating the flow of particles within and from each chamber so that all particles receive approximately the same exposure to the contacting fluid. The disclosed design is readily scaled up to increase capacity without requiring proportional increases in the vertical dimension which are costly and might result in damage to the particles. The method and apparatus are especially adapted for washing salt from alumina microspheres.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.