Fluidized bed cellulation process
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United States of America Patent
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-
Sep 6, 1988
Grant Date -
N/A
app pub date -
May 12, 1987
filing date -
May 12, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Sintered particles of pulverulant glass and cellulating agent are coated with a parting agent and introduced into a fluidizing vessel. Gas is passed upwardly through the fluidizing vessel at a velocity sufficient to form a fluidized bed of these sintered particles within the fluidizing vessel. The gas and fluidized bed of sintered particles are heated within the fluidizing vessel to a cellulation temperature of the sintered particles to cause the sintered particles within the fluidized bed to form discrete cellular glass nodules of uniform size. The cellular glass nodules formed within the fluidized bed of sintered particles, having a density less than the density of the sintered particles, migrate to the top of the fluidized bed to float on the top surface of the fluidized bed. The discrete cellular glass nodules floating on the top surface of the fluidized bed are withdrawn from the fluidizing vessel.
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