Solid material comminution or disintegration – Processes – By utilizing kinetic energy of projected or suspended material
Patent
1988-07-05
1989-07-18
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
By utilizing kinetic energy of projected or suspended material
241 23, 241 33, 241 39, 241 65, 427213, B02C 1900
Patent
active
048486736
ABSTRACT:
A fluidized granulating and coating apparatus having a cylindrical treating vessel provided with at least one spray nozzle, at least one air supply duct and one exhaust duct, and a downwardly converging frusto-conical portion. The spray nozzle is disposed at a position below the interface of the fluidized particles within the region of the frusto-conical portion. At least one compressed air nozzle is disposed at a level below the interface of the fluidized particles and within the range of the frusto-conical portion. Disclosed also is a fluidized granulating and coating method which makes use of this apparatus. With the apparatus and the method of the invention, it is possible to produce granular products such as a slow-effecting or long-lasting pharmaceutical product with a high quality and homogeneity at a high yield, by coating cores of spherical granules with a coating composition containing the medical component of the desired property.
REFERENCES:
patent: 4532155 (1985-07-01), Golant et al.
Masuda Yoshinori
Motoi Masaharu
Freund Industrial Co. Ltd.
Rosenbaum Mark
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