Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – By extrusion spraying or gravity fall through orifice
Patent
1975-03-05
1976-05-18
Reeves, Robert B.
Plastic and nonmetallic article shaping or treating: processes
Formation of solid particulate material directly from molten...
By extrusion spraying or gravity fall through orifice
65 21, 425 10, B29B 103
Patent
active
039579336
ABSTRACT:
Apparatus is described for producing microspherical particles. Also described is a method for operating said apparatus. A droplet generator dispenses uniform spherical droplets into a gelling column which is sealed at both ends to prevent entry of air thereinto. A gelling liquid and a gelling gas are provided in the column, and a further gas, which is of a density lower than that of the gelling gas, is introduced to the region above the gelling gas. At the interface between the gelling gas and the further gas, the gases are withdrawn from the gelling column.
REFERENCES:
patent: 3266085 (1966-08-01), Nacke
patent: 3436790 (1969-04-01), Simnad et al.
patent: 3811850 (1974-05-01), Dobo
patent: 3856441 (1974-12-01), Suzukawa et al.
Bailey, Jr William H.
Egli Walter
Lansley Richard J.
Leary David F.
General Atomic Company
Reeves Robert B.
Rolla Joseph J.
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