BIPOLAR ELECTRODIALYZER AND PURIFICATION METHOD FOR AMINE FLUID USING SAME
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United States of America Patent
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Issued Date -
Oct 15, 2015
app pub date -
Nov 15, 2013
filing date -
Nov 16, 2012
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Abstract
Provided is an electrodialyzer for regenerating amines, comprising a negative electrode, a positive electrode, a bipolar film, and an anion exchange film. The electrodialyzer includes a chamber having an amine purification function, a chamber having an amine recovery function, and a chamber having an acid recovery function, between the facing negative electrode and positive electrode and in order in the direction from the negative electrode towards the positive electrode. The chamber having the amine purification function is surrounded by the bipolar film arranged on the negative electrode side and the anion exchange film arranged at a position facing the bipolar film. The chamber having the amine recovery function is surrounded by a set of facing anion exchange films, and the chamber having an acid recovery function is surrounded by the anion exchange film arranged on the negative electrode side, and the positive electrode or bipolar film arranged at a position facing the anion exchange film.
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