Divided horizontal reactor for the vapor phase polymerization of

Details Divided horizontal reactor for the vapor phase polymerization of Divided horizontal reactor for the vapor phase polymerization of

1974-12-16

1976-05-18

Tayman, Jr., James M.

Chemistry: physical processes

Physical processes

Crystallization

23285, 23288E, 23288S, 260 949P, 260 95R, 260 949D, 423659F, 34 57A, 432 58, 165104F, 526 65, 526 67, 526335, 526344, 526346, 526349, 526351, 526352, B01J 836, B01J 838

Patent

active

039574482

ABSTRACT:
Apparatus for the vapor phase polymerization of at least one polymerizable monomer comprising: (a) a horizontal reactor of substantially circular cross-section containing a centrally-located drive shaft extending longitudinally through said reactor to which are attached a plurality of adjacently located paddles, which paddles cause essentially no forward or backward movement of the particulate matter contained in said reactor and extend transversely within and to a short distance from the internal surfaces of said reactor, said reactor being divided into two or more individually gas-composition-controllable and polymerization-temperature-controllable polymerization compartments, by one or more dividing structures so constructed to control gas intermixing and movement of said particulate matter between said compartments; (b) driving means for said drive shaft; (c) one or more reactor off-gas outlets in each of said compartments spaced along the topward part of said reactor; (d) one or more vapor recycle inlets in each of said compartments spaced along the bottomward portion of said reactor; (e) one or more catalyst addition inlets in each of said compartments spaced along said reactor; (f) a plurality of quench liquid inlets spaced along the topward part of said reactor whereby quench liquid can be introduced into said two or more compartments; and (g) takeoff means for said particulate matter at one end of said reactor.

REFERENCES:
patent: 2292897 (1942-08-01), Nielsen
patent: 2797908 (1957-07-01), Zubrzycki
patent: 2936303 (1960-05-01), Goins
patent: 3245762 (1966-04-01), Ullrich et al.
patent: 3368875 (1968-02-01), Tulleners
patent: 3514501 (1970-05-01), Leibson et al.

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