Method and apparatus for filtering a polymeric melt

Details Method and apparatus for filtering a polymeric melt Method and apparatus for filtering a polymeric melt

1998-04-09

1999-09-28

Popovics, Robert J.

Liquid purification or separation

Processes

Separating

2103232, 210456, 425199, B01D 3700

Patent

active

059582553

ABSTRACT:
A filtering method and apparatus for continuously filtering a polymeric melt, which includes a plurality of filter chambers which are arranged in a melt flow path parallel to one another. Also, an intermediate filter is arranged parallel to the filter chambers. When one of the filter chambers is disconnected for the purpose of cleaning or replacing the filter element therein, the intermediate filter is connected synchronously in the melt flow path and, after the filter chamber is cleaned, or the filter element is exchanged, the flow is switched back through the filter chamber, and the intermediate filter is again disconnected.

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Filtration System Maintains Continuous Flow During Filter Changes, SPE Journal, vol. 27, No. 4, Apr. 1971, 1 page.
Chemical Fibers International, Polymer Filtration, vol. 45, p. 398, Oct. 1995.

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