Title:
【発明の名称】重合触媒用担体の製造法と製造装置
Document Type and Number:
Japanese Patent JP2676425
Kind Code:
B2
Abstract:
In conventional spraying methods the problem in the preparation of small carrier particles aimed for the polymerization is that the drops constituting the prestages of the particles agglomerate or form otherwise in different sizes, whereby the size distribution of the carrier particles becomes too broad. This leads due to the so-called replica phenomenon to a polymer product having also a too broad particle size distribution. In the present invention the carrier is prepared by spraying a liquid containing a carrier through a nozzle into inert gas so that its first forms small droplets, which then solidify to small carrier particles. The desired narrow particle size distribution is provided by feeding a liquid containing a carrier through a nozzle, in which or in connection with which the liquid drops by means of the standing sonic waves in the ultrasonic range into small droplets of uniform size. The droplets of uniform size solidify then into small carrier particles of equally uniform size.
Inventors:
Koskinen, Yucca
Pliers, ismo
Pliers, ismo
Application Number:
JP28056090A
Publication Date:
November 17, 1997
Filing Date:
October 18, 1990
Export Citation:
Assignee:
Borealis Holding Aes
International Classes:
B01J2/04; B01J19/10; B01J19/26; B01J32/00; C08F4/00; C08F4/02; (IPC1-7): C08F4/02; B01J2/04; B01J19/10; B01J19/26; B01J32/00
Domestic Patent References:
| JP57198709A | ||||
| JP5925904A | ||||
| JP63270573A | ||||
| JP1194935A |
Attorney, Agent or Firm:
Murao Mikio