Apparatus for gas phase polymerization and method for operating the same

A fluidized bed-type polymerization apparatus (1) has an upper blowing equipment (10) installed at a definite height in the fluidized bed area. Through the equipment, a part of the circulating gas (3) and a part, or the whole, of the fresh feed material (6) is blown, thereby to prevent the formation...

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Bibliographische Detailangaben
Hauptverfasser:	OGAWA, HIROYUKI, KUSAKABE, HIDEO, KUROKAWA, JITSUO, TAMARU, IKUHIRO, SASAKI, YOSHIZUMI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A fluidized bed-type polymerization apparatus (1) has an upper blowing equipment (10) installed at a definite height in the fluidized bed area. Through the equipment, a part of the circulating gas (3) and a part, or the whole, of the fresh feed material (6) is blown, thereby to prevent the formation of lumps of polymer in the fluidized bed portion, owing to improved intermixing at the upper portion of the fluidized bed, as well as efficient heat-removal at that portion.