Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in tubular or loop reactor
Patent
1998-09-25
1999-11-09
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in tubular or loop reactor
528272, 526 62, 521 48, C08F 200
Patent
active
059816724
ABSTRACT:
An apparatus for converting PET into polyester polyols including a reactor vessel having an interior volume and an inlet and an outlet, a rotation device connected to the reactor vessel for rotating the reactor vessel, and a heater system interactive with the interior of the reactor vessel so as to elevate a temperature of the interior volume of the reactor vessel to at least 175.degree. C. The reactor vessel extends in a generally horizontal orientation. The rotation device includes a roll ring affixed circumferentially around the reactor vessel, a drive roller engaging the roll ring and a motor connected to the drive roller for drivingly rotating the drive roller and the associated roll ring. The heater system includes a plurality of heating pipes extending through the interior volume of the reactor vessel and a heated fluid injector connected to the plurality of heating pipes for passing a heated fluid into the pipes. The heating pipes extend longitudinally through the reactor vessel in generally parallel relationship to each other and in parallel relationship to the longitudinal axis of the reactor vessel. A heating fluid inlet manifold is formed in the reactor vessel and a heating fluid discharge manifold is formed in the reactor vessel. Each of the pipes communicates with these manifolds.
REFERENCES:
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patent: 5395858 (1995-03-01), Schwartz, Jr.
patent: 5580905 (1996-12-01), Schwartz, Jr.
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