Filtration method

Liquid purification or separation – Processes – Chemical treatment

Reexamination Certificate

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C210S763000, C208S065000

Reexamination Certificate

active

10939762

ABSTRACT:
A method of filtering contaminants from a chemical process stream is disclosed. The method includes a step of passing the process stream over a filtration medium including a plurality of discrete filtration elements, each element having parallel first and second faces and a multi-cellular structure of substantially uniform parallel channels running from the first face to the second face. The cross-sectional shape of the channels preferably defines a polygon having angles less than or equal to 90°.

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