Chemistry: physical processes – Physical processes – Agglomerating
Patent
1984-07-09
1989-05-23
Richman, Barry S.
Chemistry: physical processes
Physical processes
Agglomerating
34 57A, 209138, 2091391, 209140, 209141, 264117, 422143, 422145, C22B 114
Patent
active
048327000
ABSTRACT:
A fluidized bed apparatus comprises a chamber having a perforated floor, a spray nozzle located in the chamber above the perforated floor, whereby material to be granulated is introduced into the chamber in the form of a solution or dispersion, means for passing heated gas upward through said perforated floor, whereby solid particles of said material are formed in said chamber, particle size-reducing means outside of said chamber, whereby particles larger than a first predetermined size are reduced in size, a screw shaft located above said perforated floor and communicating with said size-reducing means, whereby particles are withdrawn from said chamber and conveyed to said size-reducing means, a pipe having one end located downstream of said size-reducing means and its other end communicating with said chamber, and means for generating a flow of air whereby particles smaller than a second predetermined size exiting from said size-reducing means are returned through said pipe to said chamber.
REFERENCES:
patent: 2729330 (1956-01-01), Newirth
patent: 2949245 (1960-08-01), Faulk
patent: 3376124 (1968-04-01), Hollingsworth
patent: 3391003 (1968-07-01), Armstrong et al.
patent: 3738821 (1973-06-01), Barber
patent: 3748103 (1973-07-01), Bean et al.
patent: 3880968 (1975-04-01), Kaspar et al.
patent: 3884645 (1975-05-01), Kinne
patent: 3950265 (1976-04-01), Albrecht et al.
patent: 3969546 (1976-07-01), Saeman
patent: 4008053 (1977-02-01), Brenneman et al.
Kaspar Jan
Schmid Pierre
Doyle Thomas C.
Gzybowski Michael S.
Richman Barry S.
Sandoz Ltd.
Sharkin Gerald D.
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