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Title:
【発明の名称】顆粒化方法および装置
Document Type and Number:
Japanese Patent JPH06507571
Kind Code:
A
Abstract:
A method of melt granulation for powdery material is disclosed wherein the powdery material is discharged onto the upper surface of a heated rotary spreader for migration under centrifugal force to the periphery of the spreader accompanying by melting of a portion of the material and enrobing of non-melted particles by the melted material for discharge as enlarged granules from the periphery of the spreader. To improve the quality of the granules produced, the feed material is supplied to the spreader at two separate locations. The first location is the central portion of the spreader to provide the melted material and the second location is adjacent to the periphery of the spreader. The spreader is preferably in the form of a concave bowl or inverted truncated cone or dish. Feed material is supplied to the first location by a screw feeder extending down the side of the dish and at the second location by a rotary vaned distributor located within the dish which radially flings the feed material onto the inclined dish wall. The process and apparatus is particularly useful for the production of non-sticky granules which are difficult to form when a single central feed of material is used.

Inventors:
スパークス ロバート イー
マソン ノルバート エス
センター ミッチェル
Application Number:
JP50333292A
Publication Date:
September 01, 1994
Filing Date:
December 18, 1991
Export Citation:
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Assignee:
ワシントン ユニバーシティー テクノロジー アッソシェーツ インコーポレーテッド
International Classes:
A01N25/12; A61K9/16; A61K38/00; A61P7/00; B01J2/00; B01J2/14; B01J2/28; B29B9/08; B29B9/10; C07C51/43; C07C63/06; C07C213/10; C07C215/60; C07C227/42; C07C229/60; C07C233/25; C07D239/42; C07K1/00; C07K1/107; C07K1/113; C07K14/00; C07K14/195; C07K14/41; C07K14/52; C07K14/53; C07K14/535; C12N15/09; C12N15/27; C12P21/02; (IPC1-7): B01J2/14; A01N25/12; B29B9/08; B29B9/10; C07C51/43; C07C63/06; C07C213/10; C07C215/60; C07C227/42; C07C229/60; C07C233/25; C07D239/42
Attorney, Agent or Firm:
土橋 秀夫 (外1名)



 
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