C - Chemistry – Metallurgy – 13 – B
Patent
C - Chemistry, Metallurgy
13
B
260/758, 260/234
C13B 20/14 (2011.01)
Patent
CA 1230348
ABSTRACT OF THE DISCLOSURE Process for purifying an aqueous solution of a non-electrolytic organic substance by subjecting the solution first to a cation-removing treatment and thereto an anion removing treatment in a column having a free base type weakly basic anion exchange resin processed in the upper layer portion and a hydroxyl group type strongly basic anion exchange resin in the lower portion. C-31,708
474906
Matsumoto Akira
Morohashi Masayuki
Smart & Biggar
The Dow Chemical Company
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