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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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