UPTAKE OF METAL IONS BY A NEW CHELATING ION-EXCHANGE RESIN. PART 2: ACID DEPENDENCIES OF TRANSITION AND POST-TRANSITION METAL IONS*
作者:
R. Chiarizia,
E. P. Horwitz,
R. C. Gatrone,
S. D. Alexandratos,
A. Q. Trochimczuk,
D. W. Crick,
期刊:
Solvent Extraction and Ion Exchange
(Taylor Available online 1993)
卷期:
Volume 11,
issue 5
页码: 967-985
ISSN:0736-6299
年代: 1993
DOI:10.1080/07366299308918196
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Diphonix(tm)is a new dual-mechanism polyfunctional resin containing sulfonic and gem-diphosphonic acid groups. In Part 1 of this series the effectiveness of Diphonix in removing actinide ions from very acidic solutions was demonstrated. In this paper we report on the uptake of various transition and post-transition metal ions with Diphonix and two other resins for comparison. The results show that Diphonix has a very high affinity for Fe(III) and Cr(III) in very acidic solutions. From neutral solutions Diphonix exhibits a high selectivity for lead and transition metals over calcium. Conditions for efficient stripping of the investigated ions have been found.
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