Method and apparatus for treating fly ash
US5845783A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1996 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Dec 2, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C7/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for separation of carbonaceous particles from fly ash utilizes an electrostatic separator having a number of separation zones arranged to define a downward serpentine pathway for particulate material. The separation zones include spaced parallel planar electrodes with collectors positioned at the outlet of each separation zone to direct the respective carbonaceous and non-carbonaceous particles to respective storage hoppers. The feedstock is introduced to the apparatus via a rotary valve at a temperature of about 100.degree. C. and the potential difference between respective pairs of electrodes is about 30 KV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.