Modified fluidized bed

Details Modified fluidized bed Modified fluidized bed

1979-09-05

1981-04-07

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528309, C08G 6326

Patent

active

042607345

ABSTRACT:
A process (and apparatus therefor) for carrying out thermally-initiated chemical reactions or physical changes by heating a particulate substrate in a fluidized bed having hotter zone(s) and cooler zone(s) between which the fluidized particles circulate, the dwell time in the hotter zone(s) being sufficiently short so as to prevent the particles undergoing an undesirable thermal transformation before the particles move into the cooler zone(s). The fluidized bed is applicable, for example, to a process for the polymerization of a low molecular weight poly(ethylene terephthalate).

REFERENCES:
patent: 3117950 (1964-01-01), Kibler et al.
patent: 3405098 (1968-10-01), Heighton et al.
patent: 3585259 (1971-06-01), Lefferts et al.
patent: 3756990 (1973-09-01), Jaeger et al.
patent: 3767601 (1973-10-01), Knox
patent: 3960817 (1976-01-01), Morawetz et al.
patent: 4161578 (1979-07-01), Herron
patent: 4161579 (1979-07-01), Edelman et al.
patent: 4165420 (1979-08-01), Rinehart

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