Glass manufacturing – Processes – Self-supporting particle making
Patent
1987-05-12
1988-09-06
Lindsay, Robert L.
Glass manufacturing
Processes
Self-supporting particle making
65 22, 431 3, 431 8, C03B 1908
Patent
active
047690577
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 The discrete cellular glass nodules floating on the top surface of the fluidized bed are withdrawn from the fluidizing vessel.
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Birks Neil
Smolenski Chester P.
Lindsay Robert L.
Pittsburgh Corning Corporation
Price, Jr,. Stanley J.
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