Method for treating particulate material in the fluidized bed method and vessel and plant for carrying out the method
US6241801A · kind A · utility
7Cited by
4References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 17, 1998 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Nov 17, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/134
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a method for treating particulate material in the fluidized bed method, the particulate material is maintained in a fluidized bed by a treating gas flowing from bottom to top and thereby is treated. To minimize the consumption of treating gas and to reduce entrainment of fine particles by the treating gas, a particulate material having a wide grain distribution and a relatively high portion of fines is used for treatment and the treating gas in the fluidized bed is maintained at a superficial velocity less than the velocity required for fluidizing the largest particles of said particulate material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.