C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/34
C09K 5/00 (2006.01)
Patent
CA 1096599
FMC 5551 ABSTRACT: Densified fly ash pellets are produced by the steps comprising: (a) Sizing the fly ash to produce a fraction sub- stantially finer than -200 mesh (U.S. Standard Sieve Series - ASTM E-11-61); (b) Moistening the sized fraction with sufficient water to form green pellets; (c) Sizing the green pellets; (d) Tumbling the sized green pellets to effect particle packing until excess water has been squeezed out, said pellets being kept dusted during tumbling with sized fly ash from step (a) to absorb the squeezed out water and thereby prevent agglomeration; (e) Drying the packed green pellets to remove the free water therefrom; (f) Heating the dried pellets from about 1000°F (538°C) to within 70 - 90% of the absolute softening temperature of the ash and; (g) Sintering the pellets from (f) at a temperature of 70 to 90% of the absolute softening temperature of the ash. The densified fly ash pellets constitute a low cost particulate heat exchange material for supplying heat to a fluidized bed carbon gasification zone.
266464
Fmc Corporation
Osler Hoskin & Harcourt Llp
LandOfFree
Densification of coal fly ash does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Densification of coal fly ash, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Densification of coal fly ash will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-873197