C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/532.5, 260/5
C07C 53/00 (2006.01) C07C 57/07 (2006.01)
Patent
CA 1117975
Abstract of the Disclosure The present invention is characterized as a method of removing chromium ion in an aqueous solution of an organic acid having an organic acid concentration of at most 95% containing chromium ion by an ion exchange process at a temperature above 55°C by using an ion exchange resin.
324857
Ikeda Minoru
Matsuzawa Hideo
Okada Kazuya
Yoshioka Teruhiko
Meredith & Finlayson
Mitsubishi Rayon Company Ltd.
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