Title:
METHOD OF ACTING ON CHEMICAL REACTION OR PHYSICAL CHANGE BY MEANS OF FLUID BED AND ITS DEVICE
Document Type and Number:
Japanese Patent JPS5541895
Kind Code:
A
Abstract:
A process (and apparatus therefor) for carrying out thermally initiated chemical reactions or physical changes by heating a particular substrate in a fluidised bed having hotter zone(s) and cooler zone(s) between which the fluidised particles circulate, the dwell time in the hotter zone(s) being sufficiently short so as to prevent the particles undergoing an undesirable thermal transformation, and/or the dwell time in the cooler zone(s) being sufficiently long to allow chemical reaction and/or physical changes to take place which prevent undesirable thermal transformations occurring in the hotter zone(s). The fluidised bed process is applicable, for example, to the polymerisation of a low molecular weight poly(ethylene terephthalate) and to a process for the preparation of poly (ethylene terephthalate) from a terephthalic acid and ethylene oxide.
Inventors:
NIKORASU UIRIAMU RICHIYAADO AN
DERITSUKU FUIRITSUPUSU BAAKAA
RESURII JIYON FUOODO
FURANKU ARUFURETSUDO KAAKU
REIMONDO ORIBAA
DERITSUKU FUIRITSUPUSU BAAKAA
RESURII JIYON FUOODO
FURANKU ARUFURETSUDO KAAKU
REIMONDO ORIBAA
Application Number:
JP11471679A
Publication Date:
March 24, 1980
Filing Date:
September 06, 1979
Export Citation:
Assignee:
ICI LTD
International Classes:
B01J8/18; B01J8/24; C08G63/00; C08G63/42; C08G63/78; C08G63/80; (IPC1-7): B01J8/24; B01J8/38